福建农业学报2016，Vol.31Issue(4)：345-349,5.DOI:10.19303/j.issn.1008-0384.2016.04.003
环保型饲粮对生长猪生长性能和养分排泄量的影响
The Effects of Environment Protecting Diet on Growth Performance and Nutrient Excretion of Growing Pigs
摘要
Abstract
The experiment was conducted to explore the effects of phytase and Non-starch ploysaccharide enzyme (NSPase)and amino-acid with trace mineral chelates on growth performance and nutrients excretion of growing pigs.Ninety DLY pigs with initial body weight of (41.92 ± 2.6 )kg were randomly allocated into 5 groups of 3 replicates with 6 pigs in each replicates.Group 1 was control with diet of crude protein (CP)1 7.4% and Fe 100 mg·kg-1 and Zn 120 mg·kg-1 .Group 2 to 5 was experiments with low protein diet (CP 14.3%).Compared to group 1,the CP and total P (TP)level reduced 3% and 0.1 % level and Fe and Zn decreased 50% respectively and Cu reduced to 10 mg·kg-1 in group 2. In group 3,the trace minerals were replaced 50% with amino-acid with Cu, Fe and Zn chelates on the base of group 2. The diets of group 4 and 5 were added with NSPase on the base of group 2 and 3 respectively.The experiments lasted for 38 days.The results showed as follows:Compared with control, the average daily gain (ADG)and ratio of feed to gain (F/G)in group 2 significantly increased 7.64% and 1.94%respectively (P <0.05),and fecal nitrogen (N)excretion in group 2 to 5 significantly decreased 18.58%,20.65%, 23.0% and 21.24% respectviely (P <0.05),fecal phosphorous (P)excretion in groups 2 to 5 decreased 40.23%, 38.31%,39.08% and 39.85% respectively (P <0.01).The fecal Cu (P <0.01)and Fe (P <0.01)and Zn (P <0.05)excretion of group 2 to 5 were significantly lower than those of group 1. In conclusion,these results indicated that diets containing phytase with reducing 3% CP and 0.1% TP level and Fe and Zn decreasing 50% and Cu lowing to 10 mg·kg-1 on the base of commom CP diet can improve ADG and decrease fecal N and Zn excretion (P <0.05) and reduce fecal P,Cu and Fe excretion (P <0.01).But these dietary supplementation of organic trace minerals and NSPase had no influence on growth performance and fecal nutrients.关键词
低蛋白质饲粮/植酸酶/非淀粉多糖酶/氨基酸微量元素/生长性能/生长猪Key words
low protein diet/phytase/non-starch polysacchride enzyme/amino-acid with trace mineral chelates/growth performance/growing pigs分类
农业科技引用本文复制引用
刘景,林维雄,方桂友,叶鼎承,缪伏荣,董志岩..环保型饲粮对生长猪生长性能和养分排泄量的影响[J].福建农业学报,2016,31(4):345-349,5.基金项目
“十二五”国家科技支撑计划项目(2012BAD14B15-101) （2012BAD14B15-101）
福清市科技计划项目[融科(2015)16号] （2015）
