非淀粉多糖酶组合对苏淮猪生长性能和肌肉风味氨基酸含量的影响

doi:10.16174/j.issn.1673-4645.2024.02.002

摘要/Abstract

摘要： 本试验旨在研究非淀粉多糖酶（NSPases）组方对苏淮猪生长性能、血液生化、肉品质和背最长肌中氨基酸含量的影响。试验选择140头（初始体重为29.8±2.6 kg）苏淮猪随机分成2个处理组，根据体重和性别因素每个处理均匀分配到5个栏位，每个栏14 头猪：对照组（CON）饲喂常规玉米—杂粕型基础饲粮；试验组（NSPm）饲喂添加了600 mg/kg NSPases复合酶（700 000 U/g 木聚糖酶，100 000 U/g β-葡聚糖酶和9 000 U/g 纤维素酶）的玉米—杂粕型基础饲粮。整个饲喂期共98 d，试验结束后分析NSPases 对苏淮猪生长性能、血清生化指标、肉质和背最长肌中的氨基酸含量的影响。结果显示：与对照组相比，试验组苏淮猪日增重提高50 g （P＜0.05），并有明显提高日均采食量和降低料肉比的趋势，但方差分析未达显著性水平（P＞0.1）；与对照组相比，试验组苏淮猪背最长肌的水分含量、pH 值、滴水损失、剪切力和脂肪含量等没有产生显著性变化；但显著增加了背最长肌中风味氨基酸（天冬氨酸和谷氨酰胺）以及甜味氨基酸（丝氨酸、丙氨酸和苏氨酸）等氨基酸的含量（P＜0.05）；试验组苏淮猪血清中高密度脂蛋白胆固醇含量显著增加（P＜0.05），其他各主要血液生化指标则差异不显著。结果显示，玉米—杂粕型基础饲粮添加NSPases 可以提高苏淮猪日增重等生长性能指标和背最长肌中主要风味氨基酸含量。

关键词: 苏淮猪, 非淀粉多糖酶, 生长性能, 肉品质

中图分类号: S828；S816.73

段玖均, 刘金阳, 王在贵, 张顺芬, 张立兰, 王阳, 陈亮, 钟儒清. 非淀粉多糖酶组合对苏淮猪生长性能和肌肉风味氨基酸含量的影响[J]. 中国猪业, 2024, 19(2): 15-23.

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