饲料营养 Feed Science and Technology

大豆异黄酮对哺乳母猪生产性能、血液生理生化指标和粪便微生物菌群的影响

  • 李方方 ,
  • 朱涛涛 ,
  • 张勇 ,
  • 朱宇旌
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  • 沈阳农业大学畜牧兽医学院, 沈阳 110866

收稿日期: 2015-03-23

  网络出版日期: 2015-09-12

基金资助

国家自然科学基金(31440082,31101253)

Soybean Isoflavone: Effects on Performance, Blood Physiological and Biochemical Indices and Fecal Microorganism Flora of Lactating Sows

  • LI Fangfang ,
  • ZHU Taotao ,
  • ZHANG Yong ,
  • ZHU Yujing
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  • College of Veterinary and Animal Science, Shenyang Agricultural University, Shenyang 110866, China

Received date: 2015-03-23

  Online published: 2015-09-12

摘要

本试验旨在研究饲粮中添加大豆异黄酮(SI)对哺乳母猪生产性能、血液生理生化指标及粪便微生物菌群影响。选择平均体重为(151.05±4.53) kg、体况良好及背膘厚和分娩日龄相近的初产大白猪48头,随机分为4组,每组12个重复,每个重复1头母猪。对照组饲喂基础饲粮,试验组在基础饲粮的基础上分别添加5、10和15 mg/kg SI。试验期21 d。结果表明:1)试验组哺乳母猪平均日采食量极显著高于对照组(P<0.01);10 mg/kg SI组21 d泌乳量显著高于对照组(P<0.05),料乳比显著降低于对照组(P<0.05)。2)10 mg/kg SI组哺乳母猪血液生长激素(GH)、三碘甲状腺原氨酸(T3)、17-β雌二醇(E2)、催乳素(PRL)、总蛋白(TP)含量显著或极显著高于对照组(P<0.05或P<0.01),四碘甲腺原氨酸(T4)、甘油三酯(TG)、尿素氮(UN)含量显著低于对照组(P<0.05)。3)10和15 mg/kg SI组乳脂率均显著高于对照组(P<0.05);15 mg/kg SI组乳糖率显著高于对照组(P<0.05);10 mg/kg SI组乳蛋白含量显著高于对照组(P<0.05)。4)试验组粪便大肠杆菌数量均极显著低于对照组(P<0.01),双歧杆菌数量均极显著高于对照组(P<0.01)。由此可见,饲粮中添加适宜水平的SI能改善哺乳母猪的生产性能、血液生理生化指标,维持肠道微生物菌群平衡。哺乳母猪适宜的SI添加水平为10 mg/kg。

本文引用格式

李方方 , 朱涛涛 , 张勇 , 朱宇旌 . 大豆异黄酮对哺乳母猪生产性能、血液生理生化指标和粪便微生物菌群的影响[J]. 动物营养学报, 2015 , 27(9) : 2803 -2810 . DOI: 10.3969/j.issn.1006-267x.2015.09.018

Abstract

This trial was conducted to investigate the effects of dietary soybean isoflavone (SI) levels on performance, blood physiological and biochemical indices and fecal microorganism flora of lactating sows. A total of 48 large white pigs with body weight of (151.05±4.53) kg (which had good condition, similar back fat and birthday age) were randomly arranged into 4 groups with 12 replicates per group and 1 lactating sow per replicate.The control group was fed a basal diet, and three trial groups were fed the basal diet supplemented with 5, 10 and 15 mg/kg SI, respectively. The experiment lasted for 21 days. The results showed as follows: 1) the average daily feed intake of trial groups was significantly higher than that of the control group of lactating sows (P<0.01); the 21 days milk yield of 10 mg/kg SI group was significantly higher than that of the control group (P<0.05), and the feed/lactating of 10 mg/kg SI group was significantly lower than that of the control group (P<0.05). 2) The content of growth hormone, triiodothyronine, estrogen, prolactin and total protein in blood of 10 mg/kg SI group were significantly higher than those of the control group of lactating sows (P<0.05), while the contents of tetraiodothyronine, glycerin trilaurate and usea nitrogen in blood of 10 mg/kg SI group were significantly lower than those of the control group (P<0.05). 3) The butterfat ratio of 5 and 10 mg/kg SI groups was significantly higher than that of the control group (P<0.05), the lactose ratio of 15 mg/kg SI group was significantly higher than that of the control group (P<0.05), the lactoprotein content of 10 mg/kg SI group was significantly higher than that of the control group (P<0.05). 4) The fecal Escherichia coli number of trial groups was significantly lower than that of the control group (P<0.01), and the fecal Lactobacillus number of trial groups was significantly higher than that of the control group (P<0.01). In conclusion, dietary supplementation of SI at proper level can improve performance, blood physiological and biochemical indices, maintain intestinal microorganism flora balance of lactating sows. The suitable supplemental level of SI for lactating sows is 10 mg/kg.

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