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Egyptian Poultry Science Journal
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hekal, A. (2018). EFFECT OF IN-OVO INJECTION OF PYRIDOXINE ON HATCHABILITY AND PHYSIOLOGICAL RESPONSE OF HATCHED TURKEY POULTS. Egyptian Poultry Science Journal, 38(4), 1127-1140. doi: 10.21608/epsj.2018.22910
amal maghawry hekal. "EFFECT OF IN-OVO INJECTION OF PYRIDOXINE ON HATCHABILITY AND PHYSIOLOGICAL RESPONSE OF HATCHED TURKEY POULTS". Egyptian Poultry Science Journal, 38, 4, 2018, 1127-1140. doi: 10.21608/epsj.2018.22910
hekal, A. (2018). 'EFFECT OF IN-OVO INJECTION OF PYRIDOXINE ON HATCHABILITY AND PHYSIOLOGICAL RESPONSE OF HATCHED TURKEY POULTS', Egyptian Poultry Science Journal, 38(4), pp. 1127-1140. doi: 10.21608/epsj.2018.22910
hekal, A. EFFECT OF IN-OVO INJECTION OF PYRIDOXINE ON HATCHABILITY AND PHYSIOLOGICAL RESPONSE OF HATCHED TURKEY POULTS. Egyptian Poultry Science Journal, 2018; 38(4): 1127-1140. doi: 10.21608/epsj.2018.22910

EFFECT OF IN-OVO INJECTION OF PYRIDOXINE ON HATCHABILITY AND PHYSIOLOGICAL RESPONSE OF HATCHED TURKEY POULTS

Article 14, Volume 38, Issue 4, December 2018, Page 1127-1140  XML PDF (466.21 K)
Document Type: Original Article
DOI: 10.21608/epsj.2018.22910
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Author
amal maghawry hekal
Dep. of Rabbit Breed. Res., Anim. Prod. Res. Inst., Agric. Res. Center, Minis. of Agric., Dokki, Giza, Egypt
Abstract
A total number of 720 turkey hatching eggs with an average weight of 81± 1g were used to study the effect of injecting the eggs with pyridoxine (vitamin B6) at 10th, 17th and 24th days of incubation. Hatching eggs were divided into equal six groups at each injecting time. The 1st group without injection or pierced was served as control 1, the 2nd group without injection was pierced in the blunt end and served as control 2, while eggs of the 3rd group was injected into amniotic sac through the air sac with 0.2 ml saline solution. The eggs of the 4th, 5th and 6th groups were injected as group 3 with 400, 600 and 800 μg pyridoxine, respectively, dissolved in 0.2 ml saline solution.  The results obtained could be summarized as follows: Embryonic mortality percentage (EM) as well as hatchability percentage (H) and chick weight at hatch (CWH) showed significant (P≤0.05) differences among injection times of embryonic development (ED). The best EM, H and CWH values were recorded at the10th ED. Injection of 0.2 ml saline solution with different levels of pyridoxine to the hatching eggs, significantly (P≤0.05) decrease the EM and significantly (P≤0.05) improved both H and CWH. The best value of Albumin (A)/globulin (G) ratio was at the 17th and 24th ED compared to 10th ED. The best values of plasma total protein (PTP), globulin (G) and A/G ratio were recorded by eggs injected with the lowest level of pyridoxine (400µg). Moreover, the best value of A/G ratio was recorded by control group at the 24th ED. The best value of plasma cholesterol level was recorded for eggs injected the highest level of pyridoxine (800µg) at the 10th ED. Plasma concentrations of thyroid hormones were significantly increased (P≤0.05) by increasing pyridoxine injection. On the other hand, insignificant differences were noted in plasma thyroid hormones concentrations due to periods of ED. The highest values of T3 hormone were recorded by eggs injected the highest level of pyridoxine at both the 24th and 17th ED, respectively. While the highest values of T4 hormone were recorded by eggs injected the highest level of pyridoxine at both the 17th and 10th ED, respectively.

In conclusion, in-ovo pyridoxine injection with 800µg to turkey eggs at 10 and 17 day of incubation is a practical and beneficial procedure to improve the hatchability traits
Keywords
Turkey- In-ovo injection; Pyridoxine; Hatchability- Blood biochemical traits
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