动物营养学报2017，Vol.29Issue(12)：4447-4458,12.DOI:10.3969/j.issn.1006-267x.2017.12.025
减少矿物质元素的饲粮中补充包膜半胱胺对育肥猪生长性能、胴体品质、矿物质元素沉积及排放的影响
Effects of Addition of Coated Cysteamine in Reducing Mineral Elements Diet on Growth Performance, Carcass Quality, Mineral Elements Deposition and Excretion of Finishing Pigs
摘要
Abstract
This study was conducted to determine the effects of addition of coated cysteamine ( CC) in reduc-ing mineral elements [ copper ( Cu) , iron ( Fe) , manganese ( Mn) and zinc ( Zn) ] diet on growth perform-ance, carcass quality, tissue mineral elements deposition and fecal mineral elements excretion of finishing pigs under high temperature in summer.A total of 360 crossbred ( Duroc×Landrace×Large White) healthy finishing pigs with average body weight of (103.9±0.7) kg were randomly assigned to 4 groups with 10 replicates per group and 15 pigs per replicate by a 2 ×2 two factors design.Fact1 was dietary mineral element contents, and or Cu, Fe, Mn and Zn contents were designed as two levels ( 100% and 80% ) of a basal diet;factor 2 was di-etary CC ( cysteamine content was 27% ) content, and were designed as two levels [ 0 and 1600 mg/kg ( cys-teamine content was 300 mg/kg) .The trial lasted for 30 d.The results showed as follows:1) dietary reducing mineral elements or adding CC had no significant effects on growth performance and carcass quality of finishing pigs ( P>0.05) .2) Dietary reducing mineral elements significantly decreased chromium ( Cr) content in liver and natrium ( Na) , calcium ( Ca) and and plumbum ( Pb) contents in kidney ( P<0.05) , but significantly in-creased Na content in serum ( P<0.05) .The addition of CC in reducing mineral elements diet significantly de-creased kalium ( K) content in liver and Na, Ca, Pb and Cu contents in kidney ( P<0.05 ) , tended to de-creased Mn, Zn, Cr and Ca contents in liver and Cr and Mn contents in serum (0.05≤P<0.10), and was benefit to maintaining Na balance in body tissues.3) Dietary reducing mineral elements or adding CC signifi-cantly decreased Cu and Pb excretions in feces ( P<0.01) .Dietary reducing mineral elements significantly de-creased fecal Zn excretion ( P<0.05) , but significantly increased magnesium ( Mg) excretion ( P<0.05) .The addition of CC in reducing mineral elements diet tended to decreased fecal Cr excretion ( 0.05≤P<0.10) .In conclusion, in summer at high temperature, under the condition of reducing 20% Cu, Fe, Mn and Zn contents in diet, the addition of 1600 mg/kg CC decreases mineral deposition in serum, liver and kidney, decreases fe-cal Pb, Cu and Cr mineral excretions, and maintains the electrolyte balance without negative effects on growth performance of finishing pigs.关键词
矿物质元素/包膜半胱胺/育肥猪/生长性能/沉积/排放Key words
mineral elements/coated cysteamine/finishing pigs/growth performance/deposition/excretion分类
农业科技引用本文复制引用
白苗苗,刘红南,张旺宏,张晓峰,徐康,习欠云,邓近平,印遇龙..减少矿物质元素的饲粮中补充包膜半胱胺对育肥猪生长性能、胴体品质、矿物质元素沉积及排放的影响[J].动物营养学报,2017,29(12):4447-4458,12.基金项目
国家自然科学基金(31501964) （31501964）
国家重点研发计划(2016YFD0501201) （2016YFD0501201）
