@article { author = {Helal, Mostafa and El-Gendy, Essam.}, title = {ESTIMATION OF GENETIC DIFFERENCES BETWEEN RABBIT BREEDS USING MICROSATELLITE LOCI ON CHROMOSOMES 5, 7 AND 19}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {731-740}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.63465}, abstract = {The objective of this study was to differentiate between five rabbit breeds at four microsatellite loci on autosomal chromosomes 5, 7 and 19, and to assess the association between detected microsatellite alleles and some economical traits. The breeds were Baladi White (BWH) and Baladi Red (BR) as native Egyptian breeds, and New Zealand White (NZW), American Rex (AR) and Chinchilla (CH) as exogenous breeds. Genomic DNA was extracted from nine individuals/breed, and screened by four pairs of microsatellite markers (Sat5, D7Utr4A, D7Utr4B and D19Utr4B). A total of 26 alleles was detected, with an average of 6.5 alleles per locus. The within-breed genomic variability was in general high, and was not significantly differed between breeds. The expected heterozygosity was also high and ranged from 0.769 in NZW to 0.826 in CH, with no significant differences between the breeds. The average polymorphism information content (PIC) varied from 0.286 in BWH to 0.593 in CH. The genetic distance indices revealed close genetic relationship between BWH and CH and averaged 2.629, however the genetic distance between AR and NZW averaged 3.355. Many alleles were found to associate many growth and reproduction traits. D7utr4A`4 showed significant association with body weight and chest circumference at 8 weeks of age and body length at 8 and 10 weeks of age. The microsatellite locus D7Utr4B on chromosome 7 showed significant association with parity.}, keywords = {}, url = {https://epsj.journals.ekb.eg/article_63465.html}, eprint = {https://epsj.journals.ekb.eg/article_63465_ce1f25378f0164d5204d337a1d3e1d7c.pdf} } @article { author = {I, motaz and Moghazee, Mona and Younis, Rania and Youssef, S. and Abd El-Halim, H.A}, title = {GENETIC DIVERSITY OF CRESTED AND NON CRESTED DANDARAWI EGYPTIAN NATIVE CHICKEN BASED ON MICROSATELLITE MARKERS}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {741-751}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.63479}, abstract = {The present study was conducted to evaluate the genetic diversity and relationships of Dandarawi Egyptian native chicken phenotypes (crested (Cr) and non-crested (cr), using four microsatellite markers. According to morphological appearance this study was estimated various in reproductive traits of Dandarawi Egyptian native chicken phenotypes (crested (Cr) and non-crested (cr)). Seventy-two female from each of Cr and cr layer Dandarawi hens were chosen when egg production (EP) reached 50 %. Crested phenotype had higher significantly egg weight and egg number than cr during 2nd month and overall period. Four microsatellite markers were chosen based on the degree of polymorphism reported in the previous literature. The results revealed that all studied markers exhibited a varied percentage of polymorphism among native chicken populations. Based on cluster analysis two main clusters of chicken populations were identified. Two lines comprised of Dandarawi Egyptian native chicken phenotypes (crested (Cr) and non-crested (cr). Higher similarity was found between either (S10, S11), (S19, S29), (S2, S3), (S25, S26), or (S6, S7) populations. Genetic distance between each couple was 89.6%, 86.9%,78%,77.4% and 69.5% respectively. The genetic diversity we found among populations may be of interest for improving productive performance and adaptability. }, keywords = {Dandarawi-Crest gene-Microsatellite Markers-Simple Sequence Repeats Assay}, url = {https://epsj.journals.ekb.eg/article_63479.html}, eprint = {https://epsj.journals.ekb.eg/article_63479_11e35e1152ef4a3167cb62cb2a64a0c1.pdf} } @article { author = {El-Gogary, M. and El-Said, E.}, title = {EFFECT OF IN-OVO INJECTION WITH IRON–METHIONINE CHELATES OR IRON NANO-PARTICLES AND POST HATCH DIETARY FOLIC ACID ON GROWTH PERFORMANCE AND PHYSIOLOGICAL RESPONSES OF BROILER CHICKENS}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {753-770}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.63487}, abstract = {A study was carried out to evaluate the effect of in-ovo injection of iron–methionine chelates (Fe-Meth) or iron nano-particles (FeNPs) and post hatch feeding  with diets fortified with folic acid on productive performance and some physiological responses of Ross broiler chickens. A total of 450 fertile eggs were allocated to 5 treatment groups in the incubator, each of which included 3 replicates (30 eggs each). Experimental treatments consisted of a 5 × 2 factorial arrangement design with 5 levels of in-ovo injection solutions at day seven of incubation and two dietary levels of folic acid (FA) (0.0 or 0.5g/kg, diet) after hatching. In-ovo injection treatments were divided into 5 groups: control non- injected (T1), injected with 0.1 ml physiological saline (T2),  sham-injected control (T3),injected with 0.1 ml of 75 ppb of iron nano-particles (T4, FeNPs), while the last group (T5) was injected with 0.1 ml of 75 ppb organic iron (Fe- meth). Results showed that in-ovo injection of different iron sources significantly improved live body weight and weight gain of broiler chicks, and enhanced FCR at 3 and 5 weeks of age compared to other groups. Broilers fed  folic acid fortified diets displayed significantly heavier Live body weight (LBW) and body weight gain (BWG) than the those fed the control un-supplemented diet. The combined interaction effect of in-ovo iron injection and dietary folic acid supplementation showed the best productive performance figures during the whole experimental period. Different iron sources had no significant effect on all plasma protein fraction, Lipids profile except a higher concentration of high density lipoprotein (HDL) in plasma  recorded in-ovo injection of different iron sources compared with different controls. Plasma hemoglobin, globulin fractions(α, β, and γ-globulin), transferrin and Tri-iodothyronine concentration were significantly higher in both injected groups compared to the different control groups. Birds fed FA treatment recorded the lower significant values of plasma cholesterol, triglyceride and LDL, but, the birds fed FA recorded the higher significant value of plasma HDL, plasma hemoglobin, globulin fractions(α, β, and γ-globulin), transferrin and tri-iodothyronine concentration levels compared with birds fed with or without FA. In conclusion, in-ovo injection of Fe-Meth. or FeNPs and fed the diet fortified with FA were sufficient to improve broiler performance or physiological response in broiler chickens.}, keywords = {nano-particles elements,broiler performance,physiological response}, url = {https://epsj.journals.ekb.eg/article_63487.html}, eprint = {https://epsj.journals.ekb.eg/article_63487_68e9e6f2398f633194be008a72b74882.pdf} } @article { author = {El-Rayes, T. and El-Damrawy, S. and El-Deeb, M. and Adel Abdelghany, I.}, title = {RE/ POST-HATCH NANO-ZINC SUPPLEMENTATIONS EFFECTS ON HATCHABILITY, GROWTH PERFORMANCE, CARCASS TRAITS, BONE CHARACTERISTICS AND PHYSIOLOGICAL STATUS OF INSHAS CHICKS}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {771-789}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.63532}, abstract = {Two trials were conducted to evaluate the efficiency of nano-zinc (ZnO-NPs) supplementations on hatchability, growth performance, carcass traits, bone characteristics and physiological status of Inshas chick.In the initial experiment, on day 18 of the incubation 1020 eggs in four groups (n=85, r=3) were injected with ZnO-NPs at levels of 0, 60, 80, and 100μg /egg.Results showed that in ovo injection with ZnO-NPs at different levels has no significant effect on the hatched chick weight. In addition, nano-zinc at the level up to 60µg/ egg has no adverse effect on hatchability percentage.In the second experiment 480 one-day-old unsexed chicks from the initial experiment with an initial weight of 33.64 ±0.98gwere fed on a diet containing nano-zinc at the level of 0 or 30 mg / kg diet. The interaction of ZnO-NPs pre/post-hatch supplementations showed a significant effect on final body weight, weight gain, feed intake, and feed conversion ratio and the non-treated chicks in the control group showed the lowest values. The highest spleen weightwas recorded at the level of 100 μg ZnO-NPs/egg. The highest content of zinc in the breast meat was observed in chicks supplemented with 100μg/egg and fed 30 mg/ kg diet. Tibia bone ash content increased with increasing nano-zinc in the diet, meanwhile tibia bone Zn and P contents were increased with increasing nano-zinc in ovo supplementation. Chicks fed 30 mg ZnO-NPs/ kg diet showed highest values for tibia length, thickness when pre-hatch eggs  supplemented with 100 μg ZnO-NPs/egg and the highest strength when pre-hatch supplemented with 60 μg ZnO-NPs/egg. ZnO-NPs in ovo supplementation had no significant effect on serum biochemical parameters. Total protein, albumin, ALT, AST, HDL, LDL, and serum Zn content values were increased with increasing nano-zinc in the diet except LDL.The highest phagocytic activities were observed in chicks fed 30 mg/ kg diet and pre-hatched with 60, 80, and 100 μg ZnO-NPs/egg. }, keywords = {Nano-zinc – Poultry,in ovo-Hatchability,Bone quality}, url = {https://epsj.journals.ekb.eg/article_63532.html}, eprint = {https://epsj.journals.ekb.eg/article_63532_6c5c039a9b4b79ced3018f33624ae338.pdf} } @article { author = {El-Menawey, Mohamed}, title = {EFFECT OF HEAT TREATMENTS DURING HATCHING EGGS STORAGE ON HATCHABILITY TRAITS AND CHICK QUALITY}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {791-808}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.63534}, abstract = {The purpose of this study was to investigate the efficacy of short periods of incubation during egg storage (SPIDES) on hatchability, embryonic mortality, incubation time and chick quality of broiler breeder hatching eggs stored for 15 days. A total of 15510 hatching eggs were collected from 49-wk-old Arbor Acres broiler breeders flock. Eggs were divided into four groups. First group was stored for 5 days without heat treatment (Fresh eggs). Second group was stored for 15 days and heated one time at the fifth day of storage (SPIDES1). Third group was stored for 15 days and heated two times, on fifth and tenth days of storage (SPIDES2). Forth group was stored for 15 days without heating, a negative control. Heat treatment was at 32oC and 55 – 60% relative humidity for 6 hours. Results indicated that prolonged storage reduced hatchability, and visible fertility of untreated eggs. Heat treatments improved early embryonic mortality, hatchability and visible fertility. When eggs were exposed two times to heat treatment the hatchability was significantly improved as compared to those exposed one time only. Incubation time of the negative control was significantly increased as compared to the fresh eggs group or both heat treatment groups. No differences were observed between groups in live pipped or culled percentages. Relative yolk sac weight of newly hatched chicks increased significantly with the length of the pre-incubation storage period. However, both heat treatments restored this percentage to that of the fresh eggs. Chick quality traits (Tona score, chick weight, relative chick weight and chick length\weight) of the negative control group had lowest values as compared to other groups. However, SPIDES treatments slightly improved chick qualities. In conclusion, the present study revealed that SPIDES is an effective method to ameliorate the detrimental effects of long storage period on hatchability and chick quality.}, keywords = {Broiler hatching eggs-egg storage-hatchability-embryonic mortality-chick quality}, url = {https://epsj.journals.ekb.eg/article_63534.html}, eprint = {https://epsj.journals.ekb.eg/article_63534_4032fbc567128bbcf0f90690468a9c95.pdf} } @article { author = {ali, mohamed}, title = {EFFECT OF TYROSINE, VITAMIN E AND BUTYLATED HYDROXYTOLUENE WITHOUT OR WITH SODIUM SULPHATE ON BROILER PERFORMANCE}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {809-824}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.63536}, abstract = {This study aims to examine the ability of L tyrosine  500mg/ kg diet  (TYR), vitamin E 50mg/kg(E50) or Butylated hydroxytoluene 125mg/kg(BHT) without or with anhydrous sodium sulphate 0.3%(SS) in improving broiler performance . A total number of 240  male Arbor Acres broiler chicksone day old were randomly distributed into eight  group received control diet or control diet supplemented with SS, TYR, TYR+SS, E50, E50+SS, BHT and BHT+SS. At 35 day, The body weights were 1850, 1953  ,2241 ,2333 ,2086  ,2080 ,1742, and 1846, respectively. The birds fed TYR+SS recorded the best feed conversion. The birds fed control diet recorded the highest value while birds fed TYR recorded the lowest values. All feed additives used in this study increased plasma phosphorus with range from18.70 to38.51% compared to control diet. That elevation in plasma phosphorus is not normal and close to Ca concentration. It is clear that tyrosine was the best additives under the condition of this study. Further studies are needed with different levels of TYR and SS under suboptimal levels of metabolizable energy and crude protein. }, keywords = {Tyrosine-vitamin E-Sodium sulphate-Broiler performance}, url = {https://epsj.journals.ekb.eg/article_63536.html}, eprint = {https://epsj.journals.ekb.eg/article_63536_399ed73f4fbebe028f15dc5439c4c0f1.pdf} } @article { author = {El-zeniny, Ayat and El-Kaiaty, Ahmed and El-Allawy, Hewida and Safaa, Hosam and Kamel, Gamal and Alm El-Din, Alaa and Abd El-Azeem, Nafisa}, title = {INFLUENCE OF THERMAL MANIPULATION DURING EMBRYONIC DEVELOPMENT ON HATCHABILITY TRAITS AND SECONDARY SEX RATIO OF BROILER CHICKS}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {825-833}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.67488}, abstract = {The current study was conducted to investigate the influence of thermal manipulation (TM) during embryogenesis on hatchability traits, secondary sex ratio and hatchling weights of broiler chicks. A total of 1200 fertile eggs obtained from Cobb-500 breeder broilers parent stock were used in this study. The eggs were randomly distributed into 4 experimental groups. Incubation conditions from day 1 to day 18 were 37.5°C and 52% relative humidity for control group (TM0). while incubation temperature of the thermally treated groups during 13-15 days of incubation was increased to 39ºC for 2 hours in the second group (TM2), 4 hours in the third group (TM4) and 6 hours in the fourth group (TM6). At hatch, the hatchability traits and embryonic mortality (EM) were calculated; all hatched chicks were sorted, sexed and individually weighed. The obtained results showed that, Thermal manipulation did not adversely affect hatchability and embryonic mortality rate, but there was a positive significant effect on the normality of hatched chicks. However there were non-significant differences in the secondary sex ratio of hatched chicks. Thermal treatment did not significantly effect on body weight of hatching chicks.}, keywords = {thermal manipulation,embryogenesis,hatching parameters,broiler chicks}, url = {https://epsj.journals.ekb.eg/article_67488.html}, eprint = {https://epsj.journals.ekb.eg/article_67488_2cab9596019e8bd3384be5e29fb66ae8.pdf} } @article { author = {Behiry, Fatma}, title = {USING SOME BODY MEASUREMENTS AS PREDICTORS OF LIVE BODY WEIGHT AND CARCASS TRAITS IN FOUR BROILER STRAINS}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {835-849}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.67500}, abstract = {A total of 354 chicks at marketing age (6 weeks) of four broiler strains (Arbor Acres, 91 chicks; Hubbard, 99 chicks; Hypro, 86 chicks and Lohman, 78 chicks) were used in this study to investigate the influence of the strain on live body weight, dressed and carcass weights as well as some body measurements, the correlation between slaughter parameters and some body measurements in the four broiler strains and predicting live body weight and carcass weight using some body measurements. The obtained results demonstrated that, the strain had insignificant effect on the studied traits. Live body weight and carcass weight were positively and significantly (p<0.01) correlated with all body measurements in different strains. From this study results, the breast circumference, breast width and body length could be used for predicting carcass weight as well as body weight in different broiler strains.}, keywords = {Broiler strains,body measurements,carcass,prediction}, url = {https://epsj.journals.ekb.eg/article_67500.html}, eprint = {https://epsj.journals.ekb.eg/article_67500_ddc2a2152ea9c8f35a47e75e992036bd.pdf} } @article { author = {Osman, Mona and ahmed, M. M., and Eldeek, A. and Safwat, A.}, title = {PERFORMANCE AND CARCASS YIELDS OF COBB 500 BROILERS FED DIFFERENT DIETARY PROGRAMS AND BIOACTIVE ADDITIVES}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {851-864}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.67505}, abstract = {The experiment was performed to evaluate the impact of feeding different dietary programs having different levels of metabolizable energy (ME) during starter period and those of finisher ones which were less than that of the commercial standard (3150 kcal/kg) by 50, 100 and 150 kcal/kg with or without Bacillus amyloliquefaciens and energy enzymes on broilers productive performance and carcass characteristics. A total of 7300 Cobb 500 unsexed one day-old chicks were used. All chicks were fed pre-starter diet contained 23% crude protein (CP) and 2950 kcal ME /kg during the phase of (1-7) days. Afterward, experimental groups consist of 18 feeding programs where each program consists of two phases. During starter phase (8 -17) days, birds fed experimental diets contained constant level of CP (22%) with either of three ME levels (2950, 3000 or 3050 kcal/kg), whereas through the finisher phase (18 – 35 days), birds received diets of constant level of CP (21%) with either of the three graded ME levels being 3100, 3050 or 3000 kcal/kg with or without studied additives for each. Results showed that the best live body weight, body weight gain and feed conversion ratio (FCR) were observed in dietary program included starter diet of 3050 kcal ME/kg and finisher one of 3100 kcal ME/kg with additives inclusion compared with the worst FCR of dietary program included starter diet of 2950 kcal ME/kg and finisher one of 3000 kcal ME/kg without additives. Carcass and abdominal fat weights were significantly improved (P≤0.05) by either feed programs with additives compared with those un-supplemented. Furthermore, and no significant effects on dressed and carcass cut weight were observed among dietary treatments. It can be concluded that, feeding dietary program included starter diet of 3050 kcal ME/kg with 22% CP and finisher one of 21% CP and 3100 kcal ME/kg (50 kcal/kg less than recommended) with bioactive additives had a beneficial effect on broiler productive performance and carcass yields.}, keywords = {performance,carcass,Feeding programs,Bioactive additives}, url = {https://epsj.journals.ekb.eg/article_67505.html}, eprint = {https://epsj.journals.ekb.eg/article_67505_6585e154fc635db45a1553f64b873b7c.pdf} } @article { author = {Moustafa, Kout-Elkloub}, title = {EFFECT OF DIETARY MANGO SEED KERNEL (MANGIFERA INDICA) AS PARTIAL REPLACEMENT OF CORN ON PRODUCTIVE AND PHYSIOLOGICAL PERFORMANCE OF GROWING GIMMIZAH COCKERELS}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {865-879}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.67507}, abstract = {An investigation was undertaken to study the effects of feeding mango seed kernel (MSK) as partially substituting of yellow corn on productive performance and physiological parameters of Gimmizah cockerels. A total number of 100 Gimmizah cockerels aged 28 days were distributed into four groups. Each group was represented by five replicates (5 cockerels per rep.) from 4 -16 wk of age. The first group (control) fed the basal diet. The second, third and fourth groups were fed the basal diet with the substitution of yellow corn with MSK with 10, 15 and 20%, respectively. Body weight and body weight gain were increased when used 10% level of MSK. Feed consumption was significantly decreased and feed conversion was significantly improved overall period for 10% MSK.  Carcass characteristics had not affected. While, blood constituents (Hb, PCV%, RBCS, and WBCS counts) were significantly improved. Lymphocyte (L) count for birds fed 10 and 15% MSK was significantly increased and heterophils (H) count and H/L ratio was significantly decreased. The immunological status was significantly improved due to an increase in globulin, IgG and IgM for cockerels fed diets containing the MSK levels (10%,15%). Plasma cholesterol, CK and MDA was significantly decreased by increasing MSK levels. Serum alkaline phosphatase (ALP) activity was significantly reduced when a cockerel fed diet containing 10 and 15% MSK. Bacterial count in the intestine and in fresh breast and thigh meat were decreasing by increasing MSK levels. All MSK levels used were shown better economic efficiency than the control group. The relative economic efficiency of 10% MSK replacement of corn increased with 48% than the control group. It could be concluded that MSK can be used up to 10% without any adverse effect on performance and improve blood parameters and the economic efficiency of Gimmizah cockerels during the growing period.}, keywords = {Mango seed kernel,performance,physiological parameters,economic efficiency}, url = {https://epsj.journals.ekb.eg/article_67507.html}, eprint = {https://epsj.journals.ekb.eg/article_67507_943f264a893488414ef127265834f344.pdf} } @article { author = {Abdel Magied, hemat}, title = {IMPROVE THE UTILIZATION OF BROILER LOW PROTEIN DIETS USING THREONINE, CITRIC ACID AND SULPHATE}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {881-895}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.67511}, abstract = {This study aims to examine the ability ofthreonine (TH), citric acid (CA), sodium sulphate (SS) or their mixture to improve the utilization of broiler low protein diets. A total number of 240 Cobb broilers 10 day old were randomly distributed into eight groups received control diet containing Cobb nutritional requirements,  diet containing 2 percentage lower crude protein than control diet without the adequate requirement of threonine compare to threonine cobb requirement(LTH), diet contain 2 percentage lower crude protein than control diet with synthetic threonine equal to control group and cobb requirement(LP), LP +0.3 % citric acid (CA), LP +0.3% Anhydrous sodium sulphate (SS) , LP+0.3% CA + 0.3 % SS, LP+ 0.05% threonine  (TH) and LP +0.05% TH + 0.3% CA + 0.3 % SS. The result obtained showed that, at 21 day, using LP diet significantly decreased broiler body weight compared to control diet while all feed additives improved weight gain and feed conversion compared to LP. The birds fed mixture of TH+CA+SS recorded the highest value of body weight and the best feed conversion. At 35 day, the birds fed mixture of TH+CA+SS recorded significantly higher body weight value and lower feed conversion by 5.62, 7.83 %, respectively, compared to those fed control diet while the carcass values recorded by different treatments did not differ significantly. Compared to other treatments, birds fed mixture of TH+CA+SS recorded the highest values of total protein, albumin and total cholesterol in blood analysis. We can conclude that addition of TH, CA or SS to LP diet improved the broiler performance as well as those fed control diet while addition of mixture of TH+CA+SS surpassed the control diet performance and recorded the highest value of economic efficiency .}, keywords = {broiler- low protein- threonine- citric acid,sulphate}, url = {https://epsj.journals.ekb.eg/article_67511.html}, eprint = {https://epsj.journals.ekb.eg/article_67511_0dab86e4f5a210ef9f83a3d6a4fb19ad.pdf} } @article { author = {Abd El-Hady, Ahmed}, title = {EFFECT OF DIETARY SOURCES AND LEVELS OF COPPER SUPPLEMENTATION ON GROWTH PERFORMANCE, BLOOD PARAMETERS AND SLAUGHTER TRAITS OF BROILER CHICKENS}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {897-912}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.67513}, abstract = {This research paper was carried to determine the effect of dietary supplementation of copper  at levels 50 and100 ppm, from various sources, inorganic (copper sulfate, CuSO4) or organic (copper-methionine, Cu-Met and copper-glycine, Cu-gly) on the productive traits, blood parameters, carcass traits and cecal bacterial count of broiler chickens. Three hundred and fifty Cobb 500 broiler chickens at 7 days of age were randomly divided into 7 groups (each of 50 birds): the 1st group was fed a commercial basal diet without any supplementation (control), the 2nd and 3rd groups were fed control diet supplemented with 50 and 100 ppm of CuSO4, the 4th and 5th groups were fed control diet supplemented with Cu-Met at 50 and 100 ppm and the 6th and 7th groups were fed basal diet supplemented with Cu-gly at 50 and 100 ppm. Results showed that birds fed basal diet supplemented with inorganic or organic Cu had significantly better live body weight, weight gain, feed conversion ratio, economic efficiency and production index, while feed consumption was reduced compared with control group. However, the groups supplemented with organic Cu showed significantly improved on performance traits compared with the other groups. Supplementation of dietary Cu from different sources significantly decreased serum total lipids, triglycerides, cholesterol, low density lipoprotein, Aspartate aminotransferase, Alanine aminotransferase, creatinine and malondialdehyde. On the other hand supplementation of dietary Cu from different sources significantly increased the levels of red blood cells, hemoglobin, packed cell volume, glucose, globulin, alkaline phosphatase, triiodothyronine hormone, serum immunoglobulin (IgG and IgM) and total antioxidant capacity compared with the control group. Additionally, percentage of dressing and spleen were increased, while abdominal fat was decreased but not significant in Cu-supplemented birds. Moreover, Cu supplementation decreased total bacterial count (Salmonella, E. coli and Proteus) compared with the control. In conclusion, Cu supplementation with 100 ppm of Cu-gly or Cu-Met of diet were improved the growth performance, and physiological and immune response of broiler chickens. Broilers fed organic Cu had better growth and immune response than those fed inorganic Cu}, keywords = {copper,performance,hematology,Immunology,Broilers}, url = {https://epsj.journals.ekb.eg/article_67513.html}, eprint = {https://epsj.journals.ekb.eg/article_67513_0704e387719383e54dfbe4b31fda973e.pdf} } @article { author = {Azouz, Hesham}, title = {EFFECTS OF LATE FEED RESTRICTION ON GROWTH PERFORMANCE AND INTESTINAL VILLI PARAMETERS OF BROILER CHICKS UNDER SUMMER CONDITIONS}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {913-934}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.67514}, abstract = {The aim of that study was to investigate the effects of late feed restriction at finisher stage or 12 hours feed withdrawal combined with feed restriction (FR) on growth performance, carcass traits,intestinal villi histo-morphometry and economic efficiency in chicks reared under summer conditions for 42 days were evaluated. A total number of 240 unsexed one day-old Ross 308 broiler chickens were randomly allocated to eight dietary treatments. Chickens fed ad libitum during starter and grower stage, after that two feeding regimes were applied during finisher stage (29 – 42 d); the first regime were providing feed ad libitum, 90 %, 80 % and 70 % of ad libitum feed for treatments T1 (control), T2, T3 and T4, respectively, the second compromised 12 hours feed withdrawal (fasting) associated with FR  which  T5 (100 %), T6 (90 %), T7 (80 %) and T8 (70 %). Live body weight did not differ significantly at 2 and 4 week of age or at final live body weight.LBW and BWG at 4 – 6 week of age of broilers subjected to 12 hours feed withdrawal comes before late feed restriction (100, 90, 80 and 70 %) were greater than the counterpart treatments.There were significant differences in feed intake and FCR during finisher period and the entire the experimental period between chicks given restricted diets and the control. Significant differences were recorded in the percentage of carcass, total edible parts and abdominal fat. An inverse relationship was seen between FR and abdominal fat deposition. There were no mortalities during experimental periods. Restricted fed groups scored highest villus and depth crypts and the lower production cost. It can be concluded that birds fed onrestricted diets (70 %) and feed withdrawal 12 hours before feed restriction at finisher period gave thebest FCR and less expensive in production.}, keywords = {broiler,feed restriction,Growth performance,carcass,villus and crypts}, url = {https://epsj.journals.ekb.eg/article_67514.html}, eprint = {https://epsj.journals.ekb.eg/article_67514_84b417aaf0c7d96960584b19f039dc99.pdf} } @article { author = {Azouz, Hesham}, title = {EFFECTS OF DIETARY TURMERIC AND HOT PEPPER POWDER SUPPLEMENTATION ON PRODUCTIVE PERFORMANCE OF LOCAL LAYING HENS}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {935-951}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.67515}, abstract = {The objective of this study was to investigate the effect of dietary supplementation with turmeric (TU), hot pepper (HP), or a combination of them as a powder on productive performance and functional properties of table eggs local strain (Sinai strain) hens at late production phase . A total number of 105 Sinai hens, 59-wks-old were weighed individually and randomly distributed equally into seven experimental treatments of three replicates each. The experimental design consists of the following groups; the first group was fed the basal diet without studied supplements and served as a control. The second and third groups were fed the basal diet supplemented with 0.1 and 0.25 % turmeric powder , respectively. The fourth and fifth groups were fed on the basal diet supplemented with 0.1 and 0.2 % hot pepper, respectively. The sixth and seventh groups were fed the basal diet with 0.1 % TU + 0.1 % HP or with 0.1 % TU + 0.2 % HP, respectively. The results obtained could be summarized as follows: hen fed diet supplemented with 0.1 % TU + 0.2 % HP recorded significantly the best values of egg number / hen, the second sate achieved for birds fed on diet with 0.2 % HP. Laying rate % improved significantly by adding a mixture of turmeric and hot pepper during all experimental period. Hens received diets plus turmeric at 0.1 and 0.25 % achieved the highest egg weight. Diets supplemented with mixture of TU + HP achieved the supreme effects on egg mass g / hen at all experimental periods. However, there were no significant effect on feed intake was due to adding TU or HP or both together. While , FCR values were clearly improved significantly with added turmeric + hot pepper (T6 and T7) compared to the control group. A significant improvement was found in shell thickness and Haugh unit as affected by diet with turmeric and pepper, nevertheless, shell and yolk index and percentage didn't show a statistical change during the experimental period between treatments. Hen groups received pepper 0.2 % alone or plus 0.1 % turmeric attained the highest economic efficiency compared the rest of hen groups. Conclusively, from the present study, it could be concluded that supplementing the elderly Sinai hen diets with turmeric, hot pepper or blender of both enhanced the bioavailability of turmeric also improved the liver functions as clearly exerted by enhancing egg production significantly especially, with 0.1 % TU + 0.2 % HP which improved reproduction performance, egg quality, FCR and EEF parameters during laying period.}, keywords = {Egg production,aged hen,bioavailability,Turmeric,hot pepper,egg quality}, url = {https://epsj.journals.ekb.eg/article_67515.html}, eprint = {https://epsj.journals.ekb.eg/article_67515_c60f41c62a4c6277753cb02a656f4e65.pdf} } @article { author = {Abdel-Azeem, Abdel-Azeem}, title = {EVALUATION OF FLOOR VS. CAGE SYSTEM OF BROILER CHICKENS REARED IN THREE DIFFERENT AREAS OF ENCLOSED HOUSES ON PRODUCTIVE AND PHYSIOLOGICAL PERFORMANCE}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {953-971}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.67516}, abstract = {This study was conducted to evaluate the effects of two housing systems cage vs. floor on productiveperformance and physiological response of broiler chickens reared in three rearing areas in enclosed housesincluding side cooling (vent area) , middle and at the end of the house (fan area). A total number of 3120 chicks were randomly chosen for both housing systems, where enclosed houses of cage battery and floor systems having 83200 and 22500 birds respectively.The number of 3120 chicks were divided into two groups: the first was housed in cages (n=1560) and the second was housed on the floor house (n=1560). Birds were placed in three different rearing areas containing 520 birds each. Each area per housing system was replicated four times containing 130 birds each. Results showed that LBW, BWG, FI, FCR, livability and EPEF recorded significantly (P ≤0.05) higher values for birds housed in cages than birds housed on floor. However, the former traits showed better (P ≤0.05) results for birds placed in vent area than birds placed in middle and fan area. Housing systems or rearing areas significantly (P ≤0.05) affected total faecal microbial count, where the birds housed on floor and placed in fan area exhibited (P ≤0.05) higher values than birds housed in cages and placed in middle and vent areas. Antibody titer response detected against NDV for birds placed in vent and middle areas showed higher values than birds placed in fan area. It may be concluded that, rearing broiler chickens in cage system and placed in vent area were better in obtaining the highest productivity and physiological response compared with those reared on floor system and placed in middle and fan areas.}, keywords = {Broiler chickens,rearing area,productive and physiological response}, url = {https://epsj.journals.ekb.eg/article_67516.html}, eprint = {https://epsj.journals.ekb.eg/article_67516_6e1db6c55907df377ce9ffabf81cc883.pdf} } @article { author = {Elsaadany, Amina}, title = {EFFECT OF IN OVO INJECTION WITH RESVERATROL ON HATCHING TRAITS AND PHYSIOLOGICAL RESPONSE OF MANDARA CHICKS}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {973-991}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.67517}, abstract = {This study aimed to investigate the effect of in ovo injection with resveratrol (Trans.3, 4, 5-trihydroxystilbene) on hatching traits and physiological response of Mandara chicks. A total of 864 fertile eggs at ED14 were distributed randomly into four groups of 216 eggs each with three replicates. At the 14thday of incubation, fertile eggs were injected in the yolk sac as following groups: first, eggs were un-injected (intact control), second, eggs were injected with 100 µl /egg of sterile water (sham control), and third and fourth eggs were injected with 100 µl /egg of (25 and 50 µg) resveratrol (RV), respectively.  Results show that hatchability %, hatched chicks’ weight and chick quality significantly improved for resveratrol groups compared with intact or sham control groups. Moreover, group injected with 50µg/egg recorded the highest value of hatchability (94.68%). Additionally, in ovo resveratrol injection resulted in boosted plasma antioxidants enzymes (TAC and SOD) activities and significantly decreased in plasma lipid peroxidation (MDA) levels for hatched chicks. Also, RV injection increased plasma total protein, globulin, IgG and IgM and decreased cholesterol levels. In ovo resveratrol injection had a positive effect on hematological parameters (Hb, PCV, RBCs and WBCs) and triiodthyronine (T3) of baby chicks. Relative intestinal weight, lengths of duodenum, jejunum and ileum and jejunum maltase enzyme value were significantly increased for chicks hatched from eggs injected with resveratrol.  In conclusion, in ovo injection of resveratrol on 14th d of incubation has positive effect on hatchability%, chick quality, physiological, immunological, anti- oxidative status and intestinal development of hatched chicks. Yolk sac injection at E14 with 50 µg RV /egg could be recommended for improving chick’s health}, keywords = {Resveratrol,In Ovo,antioxidant,hatching traits,physiological parameters}, url = {https://epsj.journals.ekb.eg/article_67517.html}, eprint = {https://epsj.journals.ekb.eg/article_67517_308d6bbe74bea97e0be623a3f608b1e0.pdf} } @article { author = {Farag, mohamed}, title = {EFFECT OF DIETARY GINSENOSIDES AND GINSENG SUPPLEMENTATION ON PRODUCTIVE AND REPRODUCTIVE PERFORMANCE IN GIMMIZAH CHICKENS 2- DURING LAYING PERIOD}, journal = {Egyptian Poultry Science Journal}, volume = {39}, number = {4}, pages = {993-1014}, year = {2019}, publisher = {The Egyptian Poultry Science Association}, issn = {1110-5623}, eissn = {2090-0570}, doi = {10.21608/epsj.2019.67518}, abstract = {The present study was carried out to determine the effect of dietary ginsenosides and ginseng supplementation on productive performance, physiological and immunological parameters in Gimmizah chickens. A total number of 210 (189 laying hens and 21 cocks) at 32weeks of age, were randomly divided into 7 treatment groups. Each treatment represented by 3 replicates each containing 9 hens and 1 cook. The first group was fed the basal diet without supplementation (control). While, the second, third and fourth groups were fed the basal diet supplemented with ginsenosides (GnD) at 100, 200 and 300 mg/kg diet, respectively. The fifth, sixth and seventh groups were fed the basal diet supplemented with ginseng (Gn) at 100, 200 and 300 mg/kg diet, respectively. All birds received feed and water ad-libitum throughout the experimental period (32 -44 weeks of age). Results obtained showed that: The chickens fed the basal diet supplied with 300 mg Gn/kg diet had significant results for egg production, egg mass, feed conversion ratio, and fertility percentage compared with those in the other experimental groups. Supplementation of chicken’s diet with GnD and Gn significantly improved antioxidant status and significantly increased estrogen and progesterone hormones concentrations compared to control group. In conclusion, supplied Gimmizah chickens diet with ginseng or ginsenosides at 300 mg/kg diet improved productive and reproductive performance and the immune status during laying period.}, keywords = {laying hens,Ginsenosides,Ginseng,blood parameters,egg quality}, url = {https://epsj.journals.ekb.eg/article_67518.html}, eprint = {https://epsj.journals.ekb.eg/article_67518_04fa2bcf8f49e1c3e5ccb73daa3f9fa1.pdf} }