Effect of different levels of crude protein in feed mixture on meat efficiency in Japanese quail
2001
Koncekova, Z. | Baumgartner, J. | Chrappa, V. (Vyskumny Ustav Zivocisnej Vyroby, Nitra (Slovak Republic))
We evaluated the effect of different content of crude protein in feed mixture on the weight growth in males and females of Japanese quail of two different lines. The growth was studied in 6 age categories up to 5th week of age. We used the meat line of Japanese quail selected to the weight on 28th day of age as and a control non-selected line. The analysis of the line effect showed a significant response of the selection in males and females. The effect on nutrition with higher content of crude protein - 26% manifested itself in males of both lines together in all age categories by significant increase of life weight, more in the lighter control line than in the heavy selected line. The higher level of CP - 26% in feed caused in all age categories of females nonsignificant increase of weight. The higher level of CP showed itself in increased weight growth in the lighter line similarly to the males, the selected line achieved even lower average weight. The results show that for the weight growth of Japanese quail of meat type is sufficient the nutrition with the content of 23% CP. The positive effect of higher CP level - 26% manifested itself rather in the non-selected control line than in the selected one, it could be caused by better utilization of CP by the selected line
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