摘要
文章旨在研究日粮添加不同水平的大蒜素对鲟鱼生长性能、体成分及肌肉品质的影响。试验将平均初始体重为(5.80±0.03)g的800条鲟鱼随机分为4组,每组4个重复,每个重复50条。对照组饲喂基础日粮,处理组分别饲喂基础日粮+10、20和40 mg/kg大蒜素,经过12周的饲养后测定相关指标。结果:40 mg/kg大蒜素组鲟鱼的饲料效率、特定生长率、蛋白效率、外形指数均表现最高(P<0.05)。与对照组相比,大蒜素组鲟鱼肝体指数分别显著降低9.91%、12.26%和11.32%(P<0.05),大蒜素组鲟鱼机体粗脂肪含量分别显著降低14.05%、12.74%和13.62%(P<0.05),粗纤维含量分别显著降低16.82%、21.96%和14.95%(P<0.05)。20和40 mg/kg大蒜素组体蛋白效率较对照组分别显著提高25.90%和27.87%(P<0.05),大蒜素组处理组体脂肪效率较对照组分别显著降低14.48%、14.12%和11.87%(P<0.05)。大蒜素组处理组肌肉蒸煮损失较对照组分别显著降低13.30%、15.22%和14.42%(P<0.05)。结论:日粮添加40 mg/kg大蒜素可以显著改善鲟鱼的饲料效率、特定生长率和蛋白效率,提高机体粗蛋白质含量,降低粗脂肪含量及肌肉的蒸煮损失。
The aim of this study was to investigate the effects of different levels of allicin on the growth performance,body composition and muscle quality of sturgeon.The 800 sturgeon with an average initial weight of(5.80±0.03)g were randomly divided into 4 groups,with 4 replicates per group and 50 replicates per group.The control group was fed basic diet,and the treatment group was fed basic diet+10,20 and 40 mg/kg allicin,respectively.After 12 weeks of feeding,relevant indexes were measured.Results:Feed efficiency,specific growth rate,protein efficiency and shape index of sturgeon were the highest in 40 mg/kg allicin group(P<0.05).Compared with the control group,the hepatic body index of sturgeon in allicin group was significantly reduced by 9.91%,12.26%and 11.32%,respectively(P<0.05).Compared with the control group,the crude fat content of sturgeon in the treatment group was significantly reduced by 14.05%,12.74%and 13.62%respectively(P<0.05),and the crude fiber content was significantly reduced by 16.82%,21.96%and 14.95%respectively(P<0.05).The body protein efficiency of the 20 and 40 mg/kg allicin group was significantly increased by 25.90%and 27.87%compared with the control group(P<0.05),and the body fat efficiency of the treatment group was significantly decreased by 14.48%,14.12%and 11.87%compared with the control group(P<0.05).Compared with the control group,muscle cooking loss in the treatment group was significantly reduced by 13.30%,15.22%and 14.42%,respectively(P<0.05).Conclusion:adding 40 mg/kg of allicin to the diet can significantly improve the feed efficiency,specific growth rate and protein efficiency of sturgeon,increase crude protein content and reduce crude fat content and muscle loss in cooking.
作者
吴春昊
WU Chunhao(Puyang Vocational and Technical College,Puyang,Henan Province 457000,China)
出处
《中国饲料》
北大核心
2021年第10期62-65,共4页
China Feed
关键词
大蒜素
鲟鱼
生长性能
体成分
allicin
sturgeon
growth performance
body composition
