动物营养学报 >

2015 , Vol. 27 >Issue 10: 3225 - 3232

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.10.030

研究简报 Short Communications

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

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  • 1. 沈阳农业大学畜牧兽医学院, 沈阳 110866;
    2. 辽宁德宝农牧集团有限公司, 沈阳 110171;
    3. 沈阳福康农牧科技有限公司, 沈阳 110164
朱宇旌(1972—),女,辽宁彰武人,博士,副教授,主要从事动物营养与饲料科学研究。E-mail:syndzhyj@163.com

收稿日期: 2015-04-22

  网络出版日期: 2015-10-15

基金资助

国家自然科学基金(31440082,31101253)

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Effects of Cysteamine Chelated Zinc on Growth Performance, Serum Biochemical Indices, Nutrient Digestibility and Fecal Microbial Flora of Piglets

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  • 1. College of Animal Sciences and Veterinary Sciences, Shenyang Agricultural University, Shenyang 110866, China;
    2. Liaoning Debao Argi-Animal Husbandry Co., Ltd., Shenyang 110171, China;
    3. Shen Yang Fukang Agriculture and Animal Husbandry Technology Co., Ltd., Shenyang 110164, China

Received date: 2015-04-22

  Online published: 2015-10-15

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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。

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

本文引用格式

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 . 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 , 27(10) : 3225 -3232 . DOI: 10.3969/j.issn.1006-267x.2015.10.030

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 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.

Key words： Zn-CS; piglets; growth performance; nutrient digestibility; fecal microflora flora; serum biochemical indices

参考文献

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