福建农业学报2012，Vol.27Issue(3)：227-231,5.
日粮粗蛋白质、可消化赖氨酸水平对生长猪生长性能和氮排泄量的影响
The Effect of Dietary Crude Protein and Digestible Lysine on Growth Performance and Nitrogen Excretion in Growing Pig
摘要
Abstract
90 DLY cross bred pigs (32. 0 ±1. 5 kg) were randomly allocated into 5 groups, 3 replicates per group, 6 pigs in each replicate to investigate the effects of dietary protein and lysine on growth performance and nitrogen excretion in growing pigs. 2×2 factors were designed. Control group was fed with diet of 17. 47% crude protein (CP) and 0.80% digestible Lys ( Dly ) . 4 treatment groups was fed with diet of 15.46%, 13.49% CP and 0. 80%, 0. 85% Dly, respectively. The test duration was lasted for 50 days. The results showed that the treatment fed with diet of 15. 46% CP and 0. 80% Dly has not effect on the growth performance in growing pigs in comparison with others (P>0. 05) . but compared to the control, urinary nitrogen was significant decreased (P<0. 05) . The treatment fed with diet of 0. 85% Dly, ADG are increased significantly (P<0. 05) and feces nitrogen and, urinary nitrogen are decreased significantly (P<0. 05) in comparison with others. The treatment fed with diet of 13. 49% CP and 0. 80% Dly has not effect on the growth performance in growing pigs (P>0. 05) compared to the others, urinary and feces nitrogen and total nitrogen was significant decreased (P<0. 05) compared to the control. The treatment fed with diet of 13. 49% CP and 0. 85% Dly has effect on the growth performance in growing pigs. The results indicate that diet of 13. 49% CP and 0. 80% Dly has not effect on the growth performance in growing pigs (P >0. 05) but at the same time nitrogen excretion is significant decreased in comparison with the diet of 17. 47% CP and 0.80% Dly (P<0. 05) .关键词
粗蛋白质水平/可消化赖氨酸水平/生长性能/尿氮/粪氮/生长猪Key words
crude protein level/ digestible Lys level/ growth performance/ nitrogen excretion/ growing pigs分类
农业科技引用本文复制引用
董志岩,方桂友,陈婉如,李忠荣,刘景,叶鼎承,缪伏荣..日粮粗蛋白质、可消化赖氨酸水平对生长猪生长性能和氮排泄量的影响[J].福建农业学报,2012,27(3):227-231,5.基金项目
福建省科技计划重大专项专题(2010NZ0002-2-1) （2010NZ0002-2-1）
