| Titles |
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English :
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Productive and economical performance of broiler chicks fed diets contained different levels of protein and total sulpher amino acid during winter season of Egypt
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Arabic :
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الاداء الانتاجى و الاقتصادى للكتاكيت المغذاة على علائق مختلفة المحتوى من البروتين و المثيونين اثناء فصل الشتاء في مصر
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| Abstract |
A factorial design experiment 3 x 3 was carried out including three levels of protein (17, 19 and 2 I % respectiveJy during the starter period and changed to 15, 17 and 19 during the finisher period) and three levels of total sulfer amino acid (0.74, 0.93 and 1. 12% during the starter period and 0.67, 0.83 and 1.00% during the finisher period) in the winter season in Egypt where the ambient temperature ranged between 9 and 160 ºC.
A total number of 378 unsexed one week old Hubbard chicks were used in this experiment. Chicks were randomly distributed into 9 treatment groups (3 replicate each). Chicks in all treatments were equal in number and have nearly similar initial body weights.
Results obtained indicated that:
1- Step up the crude protein level (17 to 21 % during the starter period and 15 to 19% during the finisher period) in broiler chick diets . resulted significant (P <0.05 & P<0.01) improvement on all growth performance traits studied.
2- Body weight at 6 weeks of age and weight gain during I -6 weeks of age were significantly (P<0.01) improved for birds fed diet containing 0.74% and 0.67% TSAA when compared with the other levels.
3- Responses to TSAA levels for feed intake and feed conversion were not significant during all the experimentaJ periods.
4- All growth performance traits studied were significantly (P<0.05 & P<0.01) affected by interaction between dietary protein and TSAA levels during all experimental periods except live body weight at 3 weeks of age, body weight gain I -3 weeks of age and feed conversion ratio during 3-6 weeks of age.
5- Chicks fed. the diet contained 2.1% CP with 0.74% TSAA during the starter penod and 19% CP wIth 0.67% TSAA during the finisher period recorded the best EE and the least fed cost /kg during 1-3 and 1-6 weeks of age.
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| Publication year |
2005
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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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| Country |
Egypt
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| Publisher |
Name:
Egyptian Society of Applied Science
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| serial title |
Egyptian Journal of Applied Science
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| ISSN |
1110-1571
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| Volume |
20
. 3
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| Department |
Poultry Breeding Research Department
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| Author(s) from ARC |
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| External authors (outside ARC) |
عادل ابراهيم عطية
جامعة الزقازيق
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| Agris Categories |
Animal feedingAnimal physiology - Nutrition
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AGROVOC
TERMS |
Amino acids.
Broiler chickens.
Diet.
Egypt.
Production economics.
Proteins.
Sulphur amino acids.
Winter.
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| Publication Type |
Journal
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