Effect of energy and protein levels on performance, egg quality, and nutrient digestibility of laying pigeons
文献类型: 外文期刊
第一作者: Bu, Z.
作者: Bu, Z.;Xie, P.;Fu, S. Y.;Tong, H. B.;Dai, X.
作者机构:
关键词: laying pigeon;dietary energy;protein;egg quality;performance;apparent digestibility
期刊名称:JOURNAL OF APPLIED POULTRY RESEARCH ( 影响因子:1.178; 五年影响因子:1.572 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: A total of 3,240 female Taisheng pigeons at 40 wk age were fed 9 diets containing 3 ME levels (2,630, 2,770, and 2,940 kcal/kg) and 3 CP levels (14.0, 15.0, and 16.0%) in a factorial arrangement. These diets were fed to investigate the effects of ME and CP on performance, egg quality, and nutrient digestibility. Female pigeons were housed under the same managerial conditions and randomly assigned into 9 treatments (6 replicates of 60 birds each). Two female-female paired pigeons housed in one cage were under a 16L:8D lighting cycle. Feed in pellet form and water were provided for ad libitum consumption. The study lasted 12 wk. As dietary ME level increased from 2,630 to 2,940 kcal/kg, BW, egg production, and apparent DM, crude fat (CF), and phosphorus (i.e., P) digestibilities increased (P < 0.05), feed intake decreased (P < 0.05), and feed conversion efficiency increased (P < 0.05). Increasing the level of dietary protein from 14 to 16% resulted in an increased (P < 0.05) BW, shell percentage, length of the major axis, and DM digestibility. Therefore, dietary ME had a greater influence on the performance of Taisheng laying pigeons than did dietary protein.
分类号: S8
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