家畜生态学报2017，Vol.38Issue(6)：30-36,7.
低蛋白质日粮对育肥猪生产性能、氮代谢及血液生化指标的影响
Effect of Low Protein Diets on Growth Performance,NitrogenMetabolism and Blood Biochemical Index of Finishing Pigs
摘要
Abstract
The study was conducted to investigate the effect of low protein diet on growth performance, nitrogen metabolism and blood biochemical index of finishing pigs.A total of 84 finishing pigs (Landrace ×Large White) with initial body weight of 60 kg were randomly allocated into 3 groups of 3 replicates with 7 pigs in each replicate.The fishing pigs in control group were fed a normal protein diet (14.80%), while those in experiment group were fed low protein diet (13.86% and 12.86%, respectively).The results showed that there was no significant difference on growth performance and nutrient digestibility after the diet protein level decreased by 1~2% (P>0.05).Compared with the control, the intake of nitrogen, absorbed nitrogen, excretion of nitrogen, urinary nitrogen and blood urea were significantly decreased in low protein diet groups (P<0.05), while the apparent biological value of nitrogen and blood creatinine were significantly increased (P<0.05).In conclusion, the low protein diets (decreased by 1~2%) had no negative impact on growth performance and physical condition of finishing pigs, at the same time, it could reduce the diet cost and gain cost.Furthermore, it could reduce the nitrogen excretion and alleviate the environment pollution of pig industry.关键词
育肥猪/低蛋白质日粮/生产性能/氮代谢/血液生化指标Key words
finishing pigs/low protein diet/growth performance/nitrogen metabolism/blood biochemical index分类
农业科技引用本文复制引用
曾燕霞,王晶,季海峰,王四新,刘辉,张董燕,王雅民,赵臣..低蛋白质日粮对育肥猪生产性能、氮代谢及血液生化指标的影响[J].家畜生态学报,2017,38(6):30-36,7.基金项目
生猪产业技术体系北京市创新团队(BAIC02-2016) （BAIC02-2016）
