| Titles |
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English :
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The influence of probitic and microbial phytase on the productive performance of commercial layers
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Arabic :
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تأثير اضافة البروبيوتك و الفيتيز الميكروبى على اداء انتاج الدجاج التجارى البياض
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| Abstract |
Seventy two 32-weeks old Hy-Line brown laying hens were reared in egg production batteries to examine the effect of inclusion commercial probiotic and microbial phytase in the diet as feed additives on laying hens performance and egg quality traits. Hens were randomly divided into three equal groups with six replicates of 4 hens each and assigned randomly for one of the experimental diets which varied in the type of supplementation. The basal diet was formulated to meet the nutrient requirements of laying hens according to NRC (1994). The first group received the basal diet without any supplementation, whereas the other two groups were given the basal diet with probiotic and microbial phytase supplementation at levels l.0 gm/Kg diet and 300FTU/Kg diet, respectively.
Results obtained could be summarized as follow:
-The overall results during the experimental period (32-5] weeks old) showed that feeding laying hens on diets supplemented with probiotic and microbial phytase diets recorded significantly (P<0.05) higher egg production, egg weight (g) and egg mass (g). However, body weight, body weight gain, feed consumption was not affected in the studied groups. Feed conversion significantly (P<0.05) was improved with probiotic and microbial phytase diets as compared with that of the control group.
- Probiotic and microbial phytase significantly increased the shell thickness, yolk index and yolk color while, there was a significantly effect on Haugh unit scores and insignificant effect on egg shape index and specific gravity - Probiotic and microbial phytase significantly reduced yolk cholesterol and total lipids contents in the egg produced.
- In the treated groups of probiotic and microbial phytase, excreta calcium and phosphorus content decreased significantly, and this respect can effectively control the potential pollutants.
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| Publication year |
2003
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| Pages |
401-414
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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 |
Egyptian Journal Applied Science
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| ISSN |
1110-1571
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| Author(s) from ARC |
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Cholesterol.
Eggs.
Feed additives.
Layer chickens.
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| Proposed Agrovoc |
commercial probiotic;microbial phytase;egg quality;total lipids;
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| Publication Type |
Journal
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