Performance of japanese quail fed low protein corn-soy diets supplemented with synthetic amino acids
Abstract: Two experiments were designed using 740 J8panese quail of cne-day-old to study the effect of feeding low-protein diets supplemented with amino acids. Experiment 1, low-protein diets (22% and 20% CP) were supplemented with essential amino acids (Met, Lys, thr, iso-Leu, and \/al) to meet the recommended requirements (NRC, 1994) and compared with high protein diets (26% and 24% CP as control diets). !n Experiment 2, the same low protein diets used in Experiment 1 (22% and 20% CP) were used in this experiment but supplemented with only Met and Lys and compared with the 24% CP diet as a control diet.
Results of experiment 1 indicated that live body weight, and body weight gain of quail chicks fed the 22% or 20% CP diet were significantly improved when these diets were supplemented with Met. Lys, and Thr and were not significantly different from those fed the high protein diets (24% or 26% CP). However, feed conversion was not significantly affected by reducing CP in the diets. Addition of Iso -Leu and Val did not give any further improvement in either body weight or feed conversion. Adding amino acids (Met., Lys., Thr. and Iso-leu.) to diets containing 20% CP gave the best economic efficiency (E.E) and the reverse was noticed with diets containing either 22% or 20% CP without Iso-Ieu supplementation. In Experiment 2, body weight and feed conversion of quail chicks fed diets containing 22% or 70% CP supplemented with Met and Lys were not significantly different fr:>m those obtained from with the 24% CP diet and increased E.E by 4% and 6%, respectively.
It is concluded that performance of Japanese quail fed low-protein diets (22 or 20% CP) supplemented with amino acids was similar to that achieved with the high-protein diets (26 or 24% CP) and gave the best EE.
Key-wards: Japanese quail performance, low-protein diets, amino acids.
Publication year 2000
Pages 6721-6729
Availability location معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
Availability number
Organization Name
Country Egypt
City المنصورة
serial title Journal Agricultural Science Mansoura University
Volume 25 . 11
Department Poultry Nutrition Research Department
Author(s) from ARC
External authors (outside ARC)
    احمد محمد على جامعة قناة السويس
Agris Categories Animal feeding
AGROVOC
TERMS		 Amino acids. Performance testing. Protein restricted diets. Proteins. Quails. Soybean meal.
Publication Type Journal
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