动物营养学报Issue(10)：3225-3232,8.DOI:10.3969/j.issn.1006-267x.2015.10.030
半胱胺螯合锌对仔猪生长性能、血清生化指标、养分消化率及粪中微生物菌群的影响
Effects of Cysteamine Chelated Zinc on Growth Performance, Serum Biochemical Indices, Nutrient Digestibility and Fecal Microbial Flora of Piglets
摘要
Abstract
The experiment was conducted to investigate the effects of dietary supplemented with cysteamine chelated zinc ( Zn-CS) on growth performance, serum biochemical indices, nutrient digestibility and fecal mi-crobial flora of piglets. Two hundreds piglets with average body weight of (10.15±1.38) kg were randomly di-vided into 5 group with 4 replicates per group and 10 piglets per replicate. Piglets in the control group were fed a basal diet, and the other in the experimental groups were fed the basal diet supplemented with 24, 32, 40 and 48 mg/kg Zn-CS. The trial last for 28 days. The results showed as follows:1) dietary supplemented with Zn-CS had significant effects on average daily gain (ADG) of piglets during any experiment period (P<0.05). The ADG of 48 mg/kg group was significantly higher than that of control group during 1 to 14 days ( P<0.01) . The ADG of 48 mg/kg group was significantly higher than that of control group during 15 to 28 days and 1 to 28 days ( P<0.05) . The feed to gain of 48 mg/kg group was significantly lower than that of control group during 15 to 28 days (P<0.01). The diarrhea rate of 32, 40 and 48 mg/kg groups was significantly lower than that of control group during 1 to 28 days ( P<0.01) . 2) Dietary supplemented with Zn-CS had sig-nificant effects on the content of growth hormone, triiodothyronine, thyroxine, insulin, immunoglobulin A, immunoglobulin G in serum and T-lymphocytes conversion rate ( P<0.05 or P<0.01) . 3) The digestibility of dry matter, crude protein, ether extract and calcium of 40 and 48 mg/kg groups was significantly higher than those of control group ( P<0.05) . The fecal E. coli number of experimental groups was significantly lower than that of control group (P<0.05). All over, the right amount of Zn-CS added in diets can effectively increase growth performance, decrease diarrhea rate, improve immune function, and improve nutrient digestibility of piglets. It is conclude that the suitable dietary Zn-CS supplemental level of piglets is 48 mg/kg.关键词
半胱胺螯合锌/仔猪/生长性能/养分消化率/粪便微生物菌群/血清生化指标Key words
Zn-CS/piglets/growth performance/nutrient digestibility/fecal microflora flora/serum bio-chemical indices分类
农业科技引用本文复制引用
朱宇旌,张勇,王浩然,李方方,郑丽莉,高原,孟玲,郭福来,丁兰,米春桃..半胱胺螯合锌对仔猪生长性能、血清生化指标、养分消化率及粪中微生物菌群的影响[J].动物营养学报,2015,(10):3225-3232,8.基金项目
国家自然科学基金(31440082,31101253) （31440082,31101253）
