作 者：
朱宇旌;王浩然;李方方;郑丽莉;高原;孟玲;郭福来;丁兰;米春桃;张勇
单 位：
沈阳福康农牧科技有限公司;沈阳农业大学畜牧兽医学院;辽宁德宝农牧集团有限公司
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
摘 要：
本文旨在研究饲粮中添加半胱胺螯合锌(Zn-CS)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。试验选用200头体重为(10.15±1.38)kg的健康大白仔猪,随机分为5组,每组4个重复,每个重复10头猪。对照组饲喂基础饲粮,试验组分别在基础饲粮上添加24、32、40、48 mg/kg的Zn-CS。试验期28 d。结果表明,1)饲粮中添加Zn-CS对试验各阶段仔猪平均日增重有显著影响(P<0.05);试验1~14 d,48 mg/kg组平均日增重极显著高于对照组(P<0.01);试验15~28 d及1~28 d,48 mg/kg组平均日增重显著高于对照组(P<0.05);试验15~28 d,48 mg/kg组料重比极显著低于对照组(P<0.01);试验1~28 d,32、40和48 mg/kg组腹泻率极显著低于对照组(P<0.01)。2)饲粮中添加Zn-CS对血清生长激素、三碘甲状腺原氨素、甲状腺素、胰岛素、免疫球蛋白A、免疫球蛋白G含量和T淋巴转化率有显著或极显著影响(P<0.05或P<0.01)。3)40和48 mg/kg组干物质、粗蛋白质、粗脂肪、钙消化率均显著高于对照组(P<0.05);各试验组仔猪粪便中大肠杆菌数量均显著低于对照组(P<0.05)。综上所述,饲粮中添加适量Zn-CS可有效地提高仔猪的生长性能,降低仔猪腹泻率,增强仔猪的免疫机能,提高仔猪养分消化率。综合本试验各项指标,仔猪饲粮中Zn-CS适宜添加水平为48 mg/kg。
译 名：
Effects of Cysteamine Chelated Zinc on Growth Performance,Serum Biochemical Indices,Nutrient Digestibility and Fecal Microbial Flora of Piglets
作 者：
ZHU Yujing;WANG Haoran;LI Fangfang;ZHENG Lili;GAO Yuan;MENG Ling;GUO Fulai;DING Lan;MI Chuntao;ZHANG Yong;College of Animal Sciences and Veterinary Sciences,Shenyang Agricultural University;Liaoning Debao Argi-Animal Husbandry Co .,Ltd.;Shen Yang Fukang Agriculture and Animal Husbandry Technology Co .,Ltd.;
关键词：
Zn-CS;;piglets;;growth performance;;nutrient digestibility;;fecal microflora flora;;serum biochemical indices
摘 要：
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 microbial flora of piglets. Two hundreds piglets with average body weight of( 10. 15 ±1. 38) kg were randomly divided 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 significant 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.
