黑水虻幼虫粉替代鱼粉对黄颡鱼生长性能、血清生化指标、肉品质的影响

Effect of replacing fish meal with black soldier fly larval meal on growth performance,serum biochemical indexes and meat quality of Pelteobagrus fulvidraco

试验旨在探究不同比例的黑水虻幼虫粉替代鱼粉对黄颡鱼生长性能、血清生化指标及肉品质的影响。选择2 g左右的黄颡鱼800尾,随机分成5组,每组4个重复,每个重复40尾鱼。对照组(G0组)黄颡鱼饲喂基础饲料,G1、G2、G3、G4组分别以15%、30%、45%、60%的黑水虻幼虫粉替代鱼粉。试验期8 w。结果显示,与G0组相比,G3、G4组黄颡鱼的饲料系数显著降低(P<0.05)。与G0组相比,G3、G4组黄颡鱼血清的尿素氮(BUN)、谷丙转氨酶(ALT)活性显著降低(P<0.05),葡萄糖(GLU)和甘油三酯(TG)含量极显著降低(P<0.01);G3和G4组黄颡鱼肌肉的粗蛋白质含量显著升高(P<0.05),鱼肉中精氨酸和丙氨酸含量极显著降低(P<0.01),组氨酸、缬氨酸和总呈味氨基酸的含量极显著升高(P<0.01),G4组鱼肉中总非必需氨基酸含量显著升高(P<0.05)。研究表明,使用黑水虻幼虫粉替代鱼粉的含量为30%时对黄颡鱼的养殖效果较好。

The study was to investigate the effect of different proportions of black soldier fly larval meal instead of fish meal on growth performance,serum biochemical indexes and meat quality of Pelteobagrus fulvidraco.A total of 800 Pelteobagrus fulvidraco about 2 g were selected and randomly divided into five groups,with four replicates in each group and 40 fish in each replicate.The Pelteobagrus fulvidraco in control group(G0 group)was fed with basic diet,and G1,G2,G3 and G4 were fed with 15%,30%,45%and 60%of black soldier fly larval meal instead of fish meal,respectively.The experimental period was 8 w.The results showed that compared with G0 group,the feed ratio of Pelteobagrus fulvidraco in G3 and G4 significantly decreased(P<0.05).Compared with G0 group,the levels of blood BUN and ALT in G3 and G4 were significantly decreased(P<0.05),and the levels of GLU and TG in G3 and G4 were extremely decreased(P<0.01).The crude protein content of Pelteobagrus fulvidraco in G3 and G4 was significantly increased(P<0.05),the content of arginine and alanine in Pelteobagrus fulvidraco were extremely decreased(P<0.01),the content of histidine,valine and total taste amino acids were extremely increased(P<0.01),and the content of total non-essential amino acids in G4 was significantly increased(P<0.05).The study indicates that the use of black soldier fly larval meal instead of fish meal content of 30%is more effective of Pelteobagrus fulvidraco.