动物营养学报 >

2020 , Vol. 32 >Issue 7: 3386 - 3393

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.07.048

研究简报 SHORT COMMUNICATION

2个纤维水平饲粮对16~23 kg天津地方黑猪生长性能、营养物质表观消化率和结肠挥发性脂肪酸含量的影响

  • 马文锋 ,
  • 郭巴图 ,
  • 郭亮 ,
  • 兰天鑫 ,
  • 盛志康
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  • 1. 河南科技大学动物科技学院, 洛阳 471023;
    2. 天津农学院, 天津市农业动物繁育与健康养殖重点实验室, 天津 300384
马文锋(1987-),男,河南平顶山人,讲师,博士,从事动物营养研究。E-mail:a113boy@163.com

收稿日期: 2020-02-05

  网络出版日期: 2020-07-15

基金资助

国家重点研发计划专项（2018YFD0500600）；国家自然科学基金（31702122）；天津市重大种业项目（15ZXZYNC00100）；天津生猪畜产品加工产业发展研究（ZFZX2012-52）；河南科技大学研究项目（4025-13480075）

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Effects of Diets with Two Fiber Levels on Growth Performance, Apparent Digestibility of Nutrients and Colonic Volatile Fatty Acid Contents in 16 to 23 kg Tianjin Black Pigs

  • MA Wenfeng ,
  • GUO Batu ,
  • GUO Liang ,
  • LAN Tianxin ,
  • SHENG Zhikang
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  • 1. College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China;
    2. Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, Tianjin Agricultural University, Tianjin 300384, China

Received date: 2020-02-05

  Online published: 2020-07-15

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摘要

本试验旨在研究2个纤维水平饲粮对16~23 kg天津地方黑猪生长性能、营养物质表观消化率、结肠挥发性脂肪酸含量和菌群数量的影响。选取健康状况一致、遗传背景相同、平均体重为（16.18±0.35）kg的天津地方黑猪，试验饲粮设定2个纤维水平（9.7%和15.3%）。试验1：选择24头黑猪进行随机区组设计，分为2组，每组6个重复，每个重复2头猪，试验期为28 d，研究2个纤维水平饲粮对黑猪生长性能、结肠挥发性脂肪酸含量和菌群数量的影响。试验2：选择6头黑猪，采用3×2拉丁方试验设计，通过全收粪法测定营养物质表观消化率，试验期为12 d，前7天为预试期，后5天为粪收集期，研究2个纤维水平饲粮对黑猪营养物质表观消化率的影响。结果表明：与9.7%纤维组相比，提高饲粮纤维水平至15.3%显著降低了黑猪的平均日增重（P<0.05），显著降低了粗蛋白质、消化能、精氨酸、缬氨酸和半胱氨酸表观消化率（P<0.05），显著增加了料重比和结肠乙酸含量（P<0.05）。综上所述，以16~23 kg天津地方黑猪为研究对象，9.7%纤维水平饲粮对黑猪的生长性能和营养物质表观消化率的影响优于15.3%纤维水平饲粮。

关键词： 天津地方黑猪; 纤维水平; 生长性能; 营养物质表观消化率

本文引用格式

马文锋 , 郭巴图 , 郭亮 , 兰天鑫 , 盛志康 . 2个纤维水平饲粮对16~23 kg天津地方黑猪生长性能、营养物质表观消化率和结肠挥发性脂肪酸含量的影响[J]. 动物营养学报, 2020 , 32(7) : 3386 -3393 . DOI: 10.3969/j.issn.1006-267x.2020.07.048

Abstract

The objective of this experiment was to study the effects of diets with two fiber levels on growth performance, apparent digestibility of nutrients and colonic volatile fatty acid contents and microorganism numbers in 16 to 23 kg Tianjin black pigs. Tianjin black pigs with the similar health status and genetic background, an average weight of (16.18±0.35) kg were selected in this study and providing two dietary fiber levels of 9.7% and 15.3%. In Exp.1, twenty-four black pigs were randomly assigned into 2 groups, and each group had six replicates with two pigs per replicate. This experiment lasted for 28 days. The objective of this experiment was to study the effects of diets with two fiber levels on growth performance, colonic volatile fatty acid contents and microorganism numbers. In Exp.2, six pigs were assigned into one of 3×2 Latin squares to determine the nutrient digestibility of nutrients using total feces collection method. Experimental period lasted for 12 days, consisting of a 7-day preliminary period and a 5-day collection of feces and urine period. The objective of this experiment was to study the effects of diets with two fiber levels on nutrient digestibility of nutrients. The results showed that compared with the 9.7% fiber group, increasing the dietary fiber level to 15.3% significantly reduced the average daily weight gain of black pigs (P<0.05), significantly reduced the apparent digestibility of crude protein, digestible energy, arginine, valine and cysteine (P<0.05), and increased the feed to gain ratio and the colonic acetic acid content (P<0.05). In conclusion, the effect of diet with 9.7% fiber level on growth performance and apparent digestibility of nutrients is better than that of diet with 15.3% fiber level for 16 to 23 kg Tianjin black pigs.

Key words： Tianjin black pig; fiber level; growth performance; nutrient apparent digestibility

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