小麦水解蛋白对早期断奶仔猪生长性能及肠道健康的影响

发布时间：2018-05-13 15:44

本文选题：小麦水解蛋白 + 断奶仔猪　；参考：《浙江农林大学》2017年硕士论文

【摘要】：本课题意在探讨小麦水解蛋白对早期断奶仔猪生产性能、腹泻、营养成分的消化率、血清生化指标、免疫功能及小肠发育的影响。选取23日龄杜×大×长断奶仔猪320头(体重7kg左右),按试验要求分成4组,每组4个重复,每个重复20头。分别喂基础日粮、基础日粮+1.0%L-谷氨酰胺、基础日粮+3.3%小麦水解蛋白(含1.0%谷氨酰胺)、基础日粮+5.0%小麦水解蛋白(含1.5%谷氨酰胺)的日粮。试验结果表明:1)在断奶后14d-28d试验各组的平均日增重分别比对照组提高了39.4%、19.6%和15.0%(P0.05),0-28d的日增重呈现相同趋势。断奶后14d-28d试验各组料重比分别比对照组低22.3%、13.2%和12.7%(P0.05),0-28d分别比对照组低18.3%、11.0%、9.6%(P0.05);2)断奶后0-14d试验各组的腹泻率分别比对照组低50.5%、34.1%和19.9%(P0.05),0-28d均低于对照组的56.2%、39.9%和20.4%(P0.05)。试验1组的腹泻率最低;3)试验各组能量的表观消化率较对照组分别提升7.33%、4.14%、3.08%(P0.05)。日粮粗蛋白的表观消化率分别较对照组提升11.86%、9.61%、8.69%(P0.05)。对于Ca的表观消化率,各试验组较对照组分别提升15.26%、9.30%、5.20%(P0.05);4)试验2组血清谷丙转氨酶的活性分别比对照组、试验1、试验3组低28.08%、24.11%、31.25%(P0.05)。试验2组的碱性磷酸酶活力明显高于其它3组。5)试验1组、2组胰岛素比对照组分别提高73.09%、88.37%(P0.05)。试验2组血清T3含量最高,较对照组和试验1组差异不显著;6)试验2组血清lgA的含量比对照组高38.61%(P0.05),比试验1组低且差异显著。三个实验组血清lgG的含量比对照组都高,但是差异不显著;7)试验1、试验2组显著增加血清IL-1β的水平(P0.05);8)试验1组、试验2组十二指肠绒毛高度/隐窝X度比对照组高60.80%、40.51%(P0.05)。试验2组空肠绒毛长度最长,比对照组高30.2%(P0.05)。对照组空肠隐窝深度比试验各组分别深61.8%、42.1%、22.0%(P0.05),试验1、试验2组空肠绒毛长度/隐窝深度比对照组高104.15%、85.86%(P0.05)。综合研究结果表明试验2组饲喂效果较好。
[Abstract]:The purpose of this study was to investigate the effects of wheat hydrolysate on early weaning piglets' performance, diarrhea, digestibility of nutrients, serum biochemical indexes, immune function and small intestine development. Twenty 3-day-old Duroc 脳 big 脳 long weaned piglets (body weight 7kg or so) were selected and divided into 4 groups with 4 replicates in each group and 20 piglets per replica according to the requirements of the experiment. The diets were fed with basal diet, basal diet 1.0% L-glutamine, basal diet 3.3% wheat hydrolysate (1.0% glutamine) and basal diet 5.0% wheat hydrolysate (1.5% glutamine). The results showed that after weaning, the average daily gain of 14d-28d group was 39.4% higher than that of control group, and 15.0% P0.05%, respectively, and the average daily gain increased by 39.4% and 15.0%, respectively, and showed the same trend between 0 and 28 days after weaning. After weaning, the feed weight ratio of each group in 14d-28d test was 22.32% lower than that in control group by 13.2% and 12.7% lower than that in control group for 0-28 days. The diarrhea rate of each group was 50.534.1% lower than that of control group, 50.534% and 19.9P0.05% lower than that of control group (56.29.9% and 20.4N / P 0.05) respectively. The apparent digestibility of energy in the test group was 7.33% higher than that in the control group (4.14%) and 3.08% (P 0.05). The apparent digestibility of dietary crude protein increased 11.86% 9.61% and 8.69% respectively compared with the control group (P 0.05). For the apparent digestibility of Ca, the activity of serum alanine aminotransferase in test 2 group was higher than that in control group (15.269.30g / 5.20 and 5.20g / kg, P 0.05) respectively. The activity of serum alanine aminotransferase (alt) in group 2 was lower than that in control group (P 0.05), and the activity of serum alanine aminotransferase (alt) in group 2 was lower than that in control group (P < 0.05). The activity of alkaline phosphatase in group 2 was significantly higher than that in other three groups. The serum T3 level of test 2 group was the highest, which was not significantly different from that of control group and test 1 group. The serum lgA content in test 2 group was 38.61g / kg higher than that in control group, and lower than that in test 1 group (P 0.05). The content of serum lgG in the three experimental groups was higher than that in the control group, but the difference was not significant. Test 1. Group 2 significantly increased the level of serum IL-1 尾 in group 1. The duodenal villus height / recess X ~ (1) in group 2 was 60.80% higher than that in the control group (P 0.05). The length of jejunum villi in group 2 was the longest, which was 30.2% higher than that in control group (P 0.05). The depth of jejunum recess in the control group was 61.82.1and the depth of the jejunum crypt was 22.0. In the experiment 1, the length / depth of jejunum villi in test group 2 was 104.1585.86m higher than that in the control group (P 0.05). The results showed that the feeding effect of the two groups was better.
【学位授予单位】：浙江农林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S828.5

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