| Titles |
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English :
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Physiological effects of gibberellic acid (ga3) on some productive and reproductive traits of bandarah local chicken strain
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Arabic :
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التأثيرات الفسيولوجية لحمض الجبرليك على بعض الصفات الانتاجية و التناسلية لسلالة دجاج البندرة المحلية
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| Abstract |
Ninety females and thirty males of Bandarah local chickens at 45 weekr of age were used to study the physiological effects of gibberellic acid (GA3) on some productive and reproductive traits. Both females and males were individually housed in layer cages and randomly divided into three equal groups (30 females and 10 males in each group). The first group in females and males was injected subcutaneous by solution of ethanol-sesame oil mixture only and served as control, while the second and third groups were injected subcutaneously twice a week by 0.2 ml/kg body weight of ethanol-sesame oil solution which containing 250 and 500 µg GA3/lcg. body weight respectively throughout 8 weeks (treatment period). After 8 weeks of treatment, birds were kept without any treatment for 4 weeks as a recovery period.
The results of this study indicated that the live body weight and feed consumption of females and males injected with 250 or 500 µg GA3 were significantly (P<0.01) increased especially with the high dose during both treatment and recovery periods compared with the control group. Egg production percentage was significantly (P<0.01) increased especially with the low dose of GA3 during both treatment and recovery periods compared with the control group, while egg weight was not significantly improved during the two periods. Packed cell volume ,(PCV), hemoglobin (Hb), blood serum glucose and calcium concentration were significantly (P<0.05) increased in females and males after 8 weeks of treatment especially with the high dose of GA3 compared with the control group. In contrast, blood serum total lipid in females and cholesterol in females and males were significantly (P< 0.05) decreased during the treatment period compared with the control group. Hens and cocks treated by GA3 conducted to nonsignificant improvement in their blood serum total protein, GOT, GPT, estradiol and testosterone concentration when compared with the control group during the experimental period Egg yolk and liver total lipids and cholesterol were significantly (P<0.05) increased after 8 weeks of treatment compared with the control group. Moreover, ejaculate volume, advanced motility, alive sperm, and sperm concentration were significantly (P<0.01) increased by applied GA3 treatment.
Non-significant improvement was recorded in relative ovary weight, oviduct and abdominal fat, while relgtive tests weight was significantly (P<0.05) decreased after 8 weeks of treatment especially with high dose of GA3 compared with the control group. Hatchability percentage was significantly improved with GA3 treatment at the end of experimental period Relative weight and thickness of egg shell were significantly (P<0.05) increased with GA3 treatment espedally with high dose after 8 weeks of treatment compared with the control group.
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| Publication year |
2006
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| Pages |
1071-1087
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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 |
الاسكندرية
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| serial title |
Egyptian Poultry Science
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| ISSN |
1110-5623
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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 |
Alanine aminotransferase.
Aspartate aminotransferase.
Calcium.
Chickens.
Cholesterol.
Egg production.
Females.
Gibberellic acid.
Haemoglobin.
Males.
Production.
Reproductive performance.
Testosterone.
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| Proposed Agrovoc |
ethanol-sesame oil mixture;egg weight;blood serum glucose;blood serum total lipid;
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| Publication Type |
Journal
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