- Selcuk Journal of Agriculture and Food Sciences
- Vol: 20 Issue: 39
- Effect of Dietary Protein and Amino Acids Content on The Performance Reproductive Characteristics an...
Effect of Dietary Protein and Amino Acids Content on The Performance Reproductive Characteristics and Nitrogen Excretion in Breeding Chukar Partridge (Alectoris Chukar)
Authors : Yusuf Cufadar, Yılmaz Bahtiyarca
Pages : 129-136
View : 11 | Download : 15
Publication Date : 2006-08-25
Article Type : Research Article
Abstract :An experiment was conducted to determine the influence of dietary crude protein and amino acid concentration on the performance, egg and reproductive characteristics and nitrogen excretion in breeding Chukar Partridge. In the experiment, 192 breeding chukar partridge at 36 weeks of age (male/female ratio: 1/ 2) was fed diets having 20, 17 (control), 15 % crude protein (CP) without and with supplemental methionine, lysine or methionine, lysine and threonine, and 13 % CP without and with methionine and lysine or methionine, lysine and threonine (total of 8 treatments, for sixteen weeks. The last two low-protein diets (15 and 13 % CP) were supplemented with methionine, lysine and threonine to increase their concentration to a level equivalent to control diet (% 17 CP). Each of the experimental diets was fed four replicates with 6 chukars per replicate. Feed and water were continuously available and light was provided for 16 hours per day. There were no significant differ-ences among the treatment groups in average body weight changes, feed intake, feed conversion ratio (feed intake, g / egg weight, g), egg production (number and %), egg weight, egg mass and percentage of fertility and hatchability (P>0.05). Decreasing dietary protein levels resulted in a significant (P< 0.01) decrease in nitrogen excretion. The results of the current study indicate that it is possible to obtain performance of breeding chukar partridge on low-protein diet (13 %) without any supplemental essential amino acids and to get comparable result with performance of chukars fed diets containing conven-tional (17 %) or higher protein (20 %) levels.Keywords : Kınalı keklik, lisin, metiyonin, nitrojen atılımı, performans, üreme, treonin.