日粮代谢能和粗蛋白质水平对0～6周龄太行鸡育肥公鸡生长性能及营养物质表观代谢率的影响

发布时间：2018-02-27 22:50

本文关键词： 太行鸡育肥公鸡代谢能粗蛋白质生长性能营养物质表观代谢率　出处：《中国家禽》2017年18期 　论文类型：期刊论文

【摘要】：试验通过研究日粮中不同水平代谢能和粗蛋白质对0~6周龄太行鸡育肥公鸡生长性能和营养物质表观代谢率的影响,确定日粮中适宜的代谢能和粗蛋白质水平,为太行鸡公鸡育肥提供依据。选取1日龄540只健康太行鸡公鸡,随机分成9组,每组4个重复,每个重复15只。采用两因素三水平的试验设计,设置日粮代谢能水平分别为11.75、12.15、12.55 MJ/kg,粗蛋白质水平分别为16.1%、17.6%、19.1%,共9种日粮。结果表明:日粮中不同代谢能水平对0~6周龄太行鸡育肥公鸡的生长性能有显著影响(P0.05),不同粗蛋白质水平对期末体重和日增重有显著影响(P0.05),代谢能和粗蛋白质水平在生长性能上表现出显著交互作用(P0.05)。日粮中不同代谢能水平对0~6周龄太行鸡育肥公鸡的能量和粗蛋白表观代谢率均有显著影响(P0.05),而不同粗蛋白质水平对能量、粗蛋白、钙和磷表观代谢率均无显著影响(P0.05),日粮代谢能和粗蛋白质水平在能量和粗蛋白表观代谢率上表现出显著交互作用(P0.05)。综合考虑生长性能和营养物质表观代谢率指标,建议0~6周龄太行鸡育肥公鸡日粮适宜代谢能水平为12.15 MJ/kg,粗蛋白质水平为17.6%。
[Abstract]:The effects of different levels of metabolizable energy and crude protein on growth performance and apparent metabolic rate of nutrients in 6-week-old Taihang fattening cock were studied in order to determine the appropriate metabolic energy and crude protein level in the diet. To provide the basis for fattening Taihang chickens, 540 healthy Taihang cocks of 1 day old were selected and randomly divided into 9 groups, 4 replicates in each group and 15 in each group. The experiment was designed with two factors and three levels. The dietary metabolic energy levels were 11.75 ~ 12.15 ~ 12.55 MJ / kg and crude protein levels were 16.1and 17.6m ~ (19.1), respectively. The results showed that different metabolic energy levels in diets had a significant effect on the growth performance of 0 ~ 6 weeks old Taihang fattening cocks. Protein level had a significant effect on body weight and daily gain at the end of the period, and metabolic energy and crude protein level had significant interaction on growth performance. Different metabolic energy levels in diet on energy of 0 ~ 6 weeks old Taihang fattening cock. And the apparent metabolic rate of crude protein had a significant effect on P0.05, but different crude protein levels had a significant effect on energy. The apparent metabolic rate of crude protein, calcium and phosphorus had no significant effect on P0.05N, but there was a significant interaction between dietary metabolic energy and crude protein metabolism rate. The growth performance and the apparent metabolic rate of nutrients were taken into account. It was suggested that the optimum metabolic energy level and crude protein level in the diet of the 0-week old Taihang fattening cock were 12.15 MJ / kg and 17.6 mg / kg, respectively.
【作者单位】：河北农业大学动物科技学院;河北省石家庄市畜牧技术推广站;
【基金】：基金项目:河北省现代农业产业技术体系蛋鸡创新团队(1004022)
【分类号】：S831.5

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