期刊论文

Effects of Addition of Rare Earth-chitosan Chelate to Diets at Different Protein Levels on Sows and Suckling Piglets

中文

中国畜牧兽医

1671-7236

2020

47

9

2841-2848

10.16431/j.cnki.1671-7236.2020.09.017

动物营养与饲料科学湖北省重点实验室开放课题“猪日粮营养品质评定方法的研究”(201904) 农副产品蛋白质饲料资源教育部工程研究中心资助项目“基于猪代谢葡萄糖营养指标的低蛋白日粮配制技术的研究”(DKXY2020018)。

本校为第一机构

本试验旨在研究不同粗蛋白质(CP)水平的玉米-豆粕型日粮中添加200 g/t稀土壳糖胺螯合盐(rare earth-chitosan chelate,RECC)对围产期母猪繁殖性能及其子代生长性能的影响.选择体况良好、胎次及预产期相近、怀孕90 d的妊娠母猪共60头,采用单因子随机区组设计分为3组,每组20头母猪,每个重复1头母猪,分别是对照组(日粮CP水平17.55％,不添加RECC)、试验Ⅰ组(日粮CP水平17.00％,RECC 200 g/t)和试验Ⅱ组(日粮CP水平16.00％,RECC 200 g/t).试验从母猪妊娠第90天开始,至仔猪21 d断奶时结束,测定母猪的产仔性能和后代哺乳仔猪的生长性能.结果 表明:与对照组相比,试验Ⅰ 、Ⅱ组母猪产程显著缩短(P0.05);试...

The purpose of this experiment was to study the effects of corn-soybean meal diets with different levels of crude protein(CP)adding 200 g/t rare earth-chitosan chelate(RECC)on the reproductive performance of sows and growth performance of their offspring.A total of 60 sows at 90 days of gestation with good physical condition,parity and the expected date of birth were selected.Single-factor randomized block design was used,and sows were divided into 3 groups,20 sows in each group,1 sow each replicate.The level of diet CP and RECC were 17.55%CP,1...