| Titles |
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English :
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Effect of feeding regimens and age on body weight, semen characteristics, fertility and embryonic mortality of caged Gimmizah male chickens
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Arabic :
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تاثير النظم الغذائية و العمر على وزن الجسم و صفات السائل المنوى و الخصوبة و نفوق الاجنة لذكور دجاج الجميزة المربى في الاقفاص
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| Abstract |
This study was aimed to evaluate the effect of feeding regimens and age on semen characteristics, fertility and embryonic mortality of Gimmizah breeder males. A total number of forty Gimmizah males (28 wks of age) was housed in individual cages. They were randomly distributed to four feeding regimens. The 1st group was fed according to NRC as a control group, the 2nd group was NRC - 20% as restricted feeding, the 3rd group according to NRC+20 %, while the 4th
group was of ad-libitum feeding at six different ages (4 x 6). Each group received the same diet, with 17 % CP and 2750 K cal ME/Kg feed. Semen collection was conducted by twice weekly using abdominal massage throughout the reproductive period studied (32-52 wks of age). Body weight, semen characteristics, fertility percent, embryonic mortality percent and testosterone levels in serum were measured. The results indicate that males on ad-libitum feeding increased significantly (P< 0.001) live body weight, also produced more semen ejaculate volume (ml) and weight (g) with higher sperm concentration, motility, live sperm , fertility percentages and serum testosterone level than control, and feed restricted males at all ages studied, while embryonic mortality percentage was significantly (P<0.001) the lowest. The semen quality characteristics, fertility percent and serum testosterone level were significantly (P<0.001) increased by advancing age to 44 wks only, while the reverse effect was shown for the embryonic mortality percent. All traits studied except semen PH were significantly (P<0.001) affected by interaction between feeding regimen and age. In conclusion feeding Gimmizah breeder males on 108 g / bird /day of diet with 18.36 g CP and 297 K cal ME/day during the reproductive period showed adequate daily feed supply for the best reproductive performance in individual cage.
Key words: Feeding regimen, breeder male, semen
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| Publication year |
2005
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| Pages |
643-656
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| Availability location |
معهد بحوث الانتاج الحيوانى-شارع نادى الصيد- الدقى- الجيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| City |
سخا- كفر الشيخ
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| serial title |
Animal Production Research Institute Second Conference & Regional Symposium on Buffalo Production
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| Author(s) from ARC |
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| Agris Categories |
Animal physiology - NutritionAnimal physiology - Reproduction
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AGROVOC
TERMS |
Age.
Body weight.
Fertility.
Foetal death.
Mortality.
Semen.
Testosterone.
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| Proposed Agrovoc |
Feeding regimen;breeder male;Gimmizah breeder males;
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| Publication Type |
Conference/Workshop
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