| Titles |
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English :
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Effect of level and source of dietary energy and / or enzyme additions on productive performance and egg quality of Japanese quail hen
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Arabic :
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تأثير مستوى و مصدر الطاقة بالعلف و / او اضافة الانزيمات على الاداء الانتاجى و جودة بيض دجاجات السمان اليابانى
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| Abstract |
The effect of inclusion 20% of rice bran (RB) or broken rice (BR) in all mash-vegetables diets containing either 2700 kcal/kg diet low energy (LE) or 2900 kcal ME/kg diet high energy (HE) without or with 1 g Avizyme-1500/kg, or phytase at 1000 /750 FYT/kg during growing /laying stage diet for Japanese quail (JQ) hens was undertaken. Thus, 2x3x3 factorial design was used. Diets were fed from day 14 to 98 of age. During the laying period nutrient profiles of the diets e.g. Ca, P and CP/amino acids were adjusted according to NRC (1994) to meet requirements for JQ breeding hens. There were 24 females/treatment allocated to 3 replications of 8 females/ replicate.
Feeding HE increased (p<0.05) age at 40% egg laying rate (ELR), egg weight (EW) and BWG, while LE Increased (p<0.05) ELR, egg mass (EM), feed intake (FI), and improved (p<0.05) feed conversion ratio (FCR), energy conversion ratio (ECR), and Haugh. Unit score. Including 20% RB or BR improved (p<0.05) ELK, EM and BWG, whereas RB or BR had no effect on EW. Including RB and BR Improved FCR by 7.2 and 7.7%, respectively compared to the control diet. Yolk colour and Haugh unit score were decreased (p<0.05) due to dietary Inclusion of RB and BR, with the effect of BR was more severe. Phytase and Avizyme improved (p<0.05) ELR, EW, EM, FCR and ECR, while decrease age at 40% ELR compared to control diet. Phytase (p<0.05) improved shell thickness compared to the control and Avizyme groups. Avizyme and phytase additions to the LE- and the HE-diet Improved ELR and EM. There were Interactions (p<0.05) between. level and sources of dietary energy and enzyme additions, indicating that effect of enzymes depends on energy level and/or source. In conclusion, phytase and Avizyme supplementation improved productive performance, while the best performance was of phytase supplemented LE-corn-soybean meal diet and Avizyme supplemented-LE-BR diet and without negative effect on egg quality traits.
Keywords: Japanese quail hens; energy level and source; multi enzymes and phytase; laying traits; egg quality.
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| Publication year |
2006
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| Availability location |
معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- دقى- جيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| Country |
Italy
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| serial title |
EPC XII European Poultry Conference, Verona, Italy
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| Author(s) from ARC |
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| External authors (outside ARC) |
فؤاد عبد الواحد عجور
جامعة المنصورة
يوسف عطية
زراعة دمنهور - جامعة الاسكندرية
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Egg characters.
Eggs.
Energy sources.
Laying performance.
Phytase.
Quails.
Trophic levels.
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| Publication Type |
Journal
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