日粮中添加甜菜碱对育肥猪生长性能、胴体品质和血清生化指标的影响

doi:10.16174/j.issn.1673-4645.2023.04.015

摘要/Abstract

摘要： 本试验旨在研究饲粮中添加甜菜碱对大体重育肥猪生长性能、胴体品质、肉品质和血清生化指标的影响。选择480头“杜×长×大”三元杂交育肥猪，随机分为4组，分别饲喂4种不同的日粮，A组为对照组饲喂普通日粮、B组普通日粮中添加0.1%甜菜碱、C组普通日粮中添加0.2%甜菜碱和D组普通日粮中添加0.3%甜菜碱，各组净能水平相同。每组10个重复，每个重复12头猪，每组公母猪数量一致。所有猪只全部进行自由采食，试验期为29 d。结果表明，（1）与A组相比，B组、C组育肥猪日增重显著提高（P＜0.05）,B组、C组育肥猪的料肉比显著降低（P＜0.05）;（2）与A组相比，各组育肥猪的屠宰率、皮脂率、骨重率、背膘厚度和眼肌面积均无显著差异（P＞0.05）;（3）与A组相比，D组肉色红度显著升高（P＜0.05）,B组、C组和D组的肉色黄度显著降低（P＜0.05）;（4）与A组相比，各组血清中总蛋白、白蛋白、甘油三酯和总胆固醇均无显著差异（P＞0.05）。综上所述，添加0.1%～0.2%的甜菜碱能够提高大体重育肥猪的生长性能，添加0.3%的甜菜碱能够提高其肉质红度，降低黄度值，提高育肥猪肉品质，但对胴体品质和血清生化指标无显著影响。

杜海涛. 日粮中添加甜菜碱对育肥猪生长性能、胴体品质和血清生化指标的影响[J]. 中国猪业, 2023, 18(4): 66-71.

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