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English :
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Performance and economical efficiency of laying hens as affected by dietary protein and supplemented methionine levels
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Arabic :
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الاداء الانتاجى و الاقتصادى للدجاج البياض تحت تأثير مستويات البروتين و المثيونين بالعليقة
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| Abstract |
Two hundreds and forty Bovans laying hens at 24 weeks old were divided into a factorial arrangement (2 x 4) and fed eight experimental diets which contained two levels of crude protein (17 & 18 % CP) and four supplemented DL- methionine levels under levels in each protein diet (0.0, 0.05, 0.10 and 0.15 %). The present study was carried out to investigate the effect of varying dietary protein and supplemented methionine levels on productive performance and economic efficiency during the laying period (24 - 43 weeks old).
Laying performance and egg quality traits of hens fed 17 % dietary crude protein showed insignificant differences, except the final live body weight, while those fed 17% CP and supplemented with (0.15 % methionine) supported higher economic efficiency as compared with other groups.
It could be recommended that Bovans Brown commercial egg type which fed 17 % CP had no adverse effect on their performance ability or egg quality parameters. Also, methionine supplementation at (0.15 %) to layers diet had 17% CP supported economic efficiency as compared with other groups.
Key words: Economic performance, protein, methionine levels, laying hens.
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| Publication year |
2006
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| Pages |
25-40
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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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| serial title |
Journal Productuction and Development
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| Author(s) from ARC |
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Economic analysis.
Layer chickens.
Methionine.
Performance testing.
Proteins.
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| Publication Type |
Journal
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