发酵饲料对生长肥育猪生长性能及猪肉风味物质含量的影响
Effects of fermented feed on growth performance and muscle flavor substance of growing pigs
方小双 1袁茜 2李勇霞 2宋娇1
作者信息
- 1. 长江大学生命科学学院,湖北荆州 434023
- 2. 长江大学动物科学技术学院,湖北荆州 434023
- 折叠
摘要
为研究发酵饲料对生长肥育猪生长性能、猪肉品质及风味物质含量的影响,试验选择 80 头健康的(杜洛克×长白×大白)三元杂交育肥猪[(59±0.3)kg],随机分为对照组和发酵饲料组,每处理 5 个重复,每重复 8 头猪.对照组饲喂基础日粮,发酵饲料组饲喂 90%基础饲粮+10%发酵饲料.试验期 70 d.研究结果表明:(1)与对照组相比,添加发酵饲料组生猪体重和日增重显著增加(P＜0.05),而料重比显著下降(P＜0.05),体重与日增重分别增加约 4.5%和6.2%,而料重比下降约 9.6%;(2)与对照组相比,添加发酵饲料组肌内脂肪含量、肌肉大理石纹评分显著增加,而滴水损失、剪切力显著降低(P＜0.05);(3)与对照组相比,添加发酵饲料组肌肉总单不饱和脂肪酸(增加约 5.2%)、总多不饱和脂肪酸(增加约 8.5%)以及风味氨基酸(增加约 11.5%)含量显著增加(P＜0.05),而总饱和脂肪酸(下降约 4.2%)的含量显著下降(P＜0.05).综上所述,发酵饲料可以通过调控猪肉不饱和脂肪酸和风味氨基酸的组成和含量,从而改善猪肉品质.
Abstract
This study was conducted to investigate the effects of fermented feed on growth performance and muscle flavor substance of growing pigs.80 crossbred growing pigs(D×L×Y)with an average initial body weight of(59±0.3)kg were randomly divided into 2 treatments,5 replicates for each treatment and 8 pigs for each repeat.The pigs in control group were fed with basal diet and the pigs in fermented feed group were fed with 90%basal diet and 10%fermented feed.The experiment lasted 70 d.The results showed that:(1)Compared with control group,fermented feed significantly increased the final body weight,daily weight gain(P<0.05)and decreased the feed:gain(F/G)ratio(P<0.05).The body weight increased by 4.2%and daily weight gain increased by 6.2%respectively compared with control group.And the F/G ration was decreasing about 9.6%.(2)Compared with control group,fermented feed group showed a significant increase in intramuscular fat contents,marble score,and decrease in dropping loss and shear force(P<0.05).(3)Compared with control group,fermented feed significantly increased the contents of monounsaturated fatty acid(increasing about 5.2%),polyunsaturated fatty acid(increasing about 8.5%)and flavor amino acid(increasing about 11.5%),and significantly decreased the saturated fatty acid(decreasing about 4.2%)contents(P<0.05).The results indicated that fermented feed had significant ability to improve muscle flavor through regulating flavor amino acid and fatty acid contents.
关键词
发酵饲料/生长肥育猪/生长性能/猪肉品质/猪肉风味物质Key words
fermented feed/growing pigs/growth performance/pork quality/muscle flavor substance引用本文复制引用
基金项目
长江大学大学生创新创业项目(Yz2021352S)
出版年
2024
NETL
NSTL
万方数据