论文部分内容阅读
The influence of Bacillus probiotics on the digestive enzyme activity and the growth of Litopenaeus vannamei were de- termined in this study. The shrimp was treated with five percentages (1.5, 3.0, 4.5, 6.0 and 7.5) of probiotics (Bacillus spp.) supple- mented to the feed and cultured for 45 d. The growth measured as the weight gain at the end of culturing was significantly (P<0.05) higher in probiotic-treated shrimps than that of the control (without receiving probiotics). Activities of protease and amylase, two digestive enzymes of the midgut gland and the intestine were significantly (P<0.05) higher in probiotic-treated shrimp than in the control.
The influence of Bacillus probiotics on the digestive enzyme activity and the growth of Litopenaeus vannamei were de- termined in this study. The shrimp was treated with five percentages (1.5, 3.0, 4.5, 6.0 and 7.5) of probiotics (Bacillus spp.) Supple - mented to the feed and cultured for 45 d. The growth measured as the weight gain at the end of culturing was significantly (P <0.05) higher in probiotic-treated shrimps than that of the control (without receiving probiotics) and amylase, two digestive enzymes of the midgut gland and the intestine were significantly (P <0.05) higher in probiotic-treated shrimp than in the control.