Mousa, M., Khosht, A., eshra, A. (2022). EFFECT OF CHROMIUM CHLORIDE OR L-CARNITINE SUPPLEMENTATION EITHER ALONE OR COMBINATION WITH VITAMIN C ON PRODUCTIVE PERFORMANCE OF GOLDEN MONTAZAH CHICKENS DURING THE SUMMER SEASON. Egyptian Poultry Science Journal, 42(3), 385-402. doi: 10.21608/epsj.2022.269159
Mohamed Abdel-Azeem Moamed Mousa; Abeer Rabie Mohamed Khosht; aber ahmed eshra. "EFFECT OF CHROMIUM CHLORIDE OR L-CARNITINE SUPPLEMENTATION EITHER ALONE OR COMBINATION WITH VITAMIN C ON PRODUCTIVE PERFORMANCE OF GOLDEN MONTAZAH CHICKENS DURING THE SUMMER SEASON". Egyptian Poultry Science Journal, 42, 3, 2022, 385-402. doi: 10.21608/epsj.2022.269159
Mousa, M., Khosht, A., eshra, A. (2022). 'EFFECT OF CHROMIUM CHLORIDE OR L-CARNITINE SUPPLEMENTATION EITHER ALONE OR COMBINATION WITH VITAMIN C ON PRODUCTIVE PERFORMANCE OF GOLDEN MONTAZAH CHICKENS DURING THE SUMMER SEASON', Egyptian Poultry Science Journal, 42(3), pp. 385-402. doi: 10.21608/epsj.2022.269159
Mousa, M., Khosht, A., eshra, A. EFFECT OF CHROMIUM CHLORIDE OR L-CARNITINE SUPPLEMENTATION EITHER ALONE OR COMBINATION WITH VITAMIN C ON PRODUCTIVE PERFORMANCE OF GOLDEN MONTAZAH CHICKENS DURING THE SUMMER SEASON. Egyptian Poultry Science Journal, 2022; 42(3): 385-402. doi: 10.21608/epsj.2022.269159
EFFECT OF CHROMIUM CHLORIDE OR L-CARNITINE SUPPLEMENTATION EITHER ALONE OR COMBINATION WITH VITAMIN C ON PRODUCTIVE PERFORMANCE OF GOLDEN MONTAZAH CHICKENS DURING THE SUMMER SEASON
1poultry nutrition department,animal production research institute,Giza, Egypt
2Poultry nutrition department, Animal Production Research Institute, Giza, Egypt
3Anim.Prod. Res. Inst., Agric. Res. Center, Mini. of Agric., Dokki, Egypt
Abstract
Two experiments were done in this experiment to evaluate the comparison of the use of chromium chloride (Cr) as CrCl3 and L-carnitine, either alone or in combination with vitamin C, during heat stress in the summer on the egg performance and egg quality. In each experiment, one hundred and twenty individual of a 28-week golden Montazah-layer hen, according to a completely randomized design were divided into four groups, each group had three replicates, and each replicate had 10 laying hens. Layers were housed in cages (one bird/cage) and at high ambient temperatures (day and night cyclic temperatures ranged from 28 to 42°C) throughout the 12-week trial period. Layers have been fed by commercial classes throughout the experiment with access to feed and water. In1st experiment, the treatments were Group 1 = control, (0 additives), group 2 = vitamin C, (250 mg/kg feed), group 3 = Cr, (400 mg/kg feed), group 4 = (Cr 400 mg/kg feed + vitamin C 250 mg/kg feed). In 2nd experiment were Group 1 = control, (0 additives), group 2 = vitamin C, (250 mg/kg feed),, group 3 = L-carnitine, (100 mg feed), group 4 = (L-carnitine 100 mg feed + vitamin C 250 mg/kg feed), The results indicated that groups supplementation of 400 mg (Cr) and 100 mg L-carnitine either alone or combination with 250 mg vitamin C /kg diet improving feed conversation, egg number, egg mass and egg production percentage compared with control group or vitamin C alone, while egg weight increased by using L-carnitine with vitamin C compared with other groups. Also results demonstrated feeding supplemental (Cr) and L-carnitine, either alone or in combination with vitamin C had no effect on egg length, egg diameter, egg shell thickness, egg shell weight but its increased albumen height (p < 0.01). It can be concluded that supplementation of 400 mg (Cr/kg feed) and 100 mg L-carnitine /kg feed either alone or combination with vitamin C 250 mg /kg diet, improved production performance for Golden Montazah hens at 29- 40 weeks of age during the summer season.
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