| Titles |
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English :
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Efefct of dietary supplementation with humate on egg production and egg shell quality during the late laying period of local strain hens
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Arabic :
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تأثير اضافة الهيومات في العليقة على انتاج البيض و جودة القشرة خلال فترة الانتاج المتاخرة في سلالة من الدجاج المحلى
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| Abstract |
This study was designed to investigate the effect of humate inclusion into diet of hens during the late laying period on egg production traits and egg quality. Two hundreds of El-Salam strain hens (n=200) 50 wk of age were allocated to four treatment groups, namely H0 H11, H2 and H3 Control (H0) hens were fed a basal diet, while, H1, H2 and H3 hens were fed the basal diet supplemented with 0.1, 0.25 and 0.4% humate, respectively. Active ingredients of humate were polymeric polyhydroxy acids (humic, fulvic, ulmic and humatomelanic acids). Egg production and egg weight were recorded daily and feed intake was evaluated biweekly. Also, a sample of 15 eggs from each group was collected randomly to determine egg quality every 28 days. Egg production and egg mass in the H2 and H3 were higher than H0 and H1 hens. Total feed intake in H3 and H2 groups were significantly higher (P<0.05) than H1 hens. Egg weight, feed conversion ratio and egg quality (egg yolk %, egg albumen %, yolk index %, Haugh unit and egg shape index) were not affected by dietary humate. Egg shell quality values (shell %, shell thickness, cracked egg %, and shell ash %) of H1 and H2 hens were higher than H3 hens. In conclusion, supplementation of humate at 0.25% during the late laying period could improve egg shell quality.
Keywords: Humate, feed additive, egg production, egg shell quality, Local chickens
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| Publication year |
2011
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| Pages |
221-229
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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 of Animal Production
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| ISSN |
0302-4520
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| Author(s) from ARC |
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Egg production.
Feed additives.
Fulvic acids.
Humic acids.
Organic fertilizers.
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| Proposed Agrovoc |
Local chickens;egg shell quality;late laying period;egg quality;ulmic;humatomelanic;
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| Publication Type |
Journal
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