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探讨了啤酒酵母 β葡聚糖制剂和维生素C的组合对斑节对虾生长和抗病力的效果。配制了 5种实验饲料 ,即每kg饵料中添加不同组合啤酒酵母 β葡聚糖制剂和维生素C (0 0 ,10 0 1,1 0 1,0 0 4 ,g) ,每个试验组设计 2个重复。体质量 2～ 3g左右的斑节对虾 (Penaeusmonodon) 70尾于室外水泥池 (3m× 2m× 1m)中饲养 30d。饲养试验结束后每组选 2 0尾虾注射溶藻弧菌 (Vibrioalginolyticus)或白斑病毒做攻毒试验。结果发现啤酒酵母 β葡聚糖制剂和维生素C的组合组显著提高斑节对虾的生长、存活率和血清蛋白 ,显著降低饲料系数 ,其效果和高剂量VC组是相当的。在攻毒试验中 ,啤酒酵母 β葡聚糖制剂和维生素C的组合大大提高注射白斑病毒虾的存活率 ,而高剂量的VC不能达到相当的效果 ,低剂量VC以及对照组的死亡率非常高
The effect of combination of brewer’s yeast beta-glucan and vitamin C on growth and disease resistance of Penaeus monodon was discussed. Five kinds of experimental diets were prepared, that is, different combinations of Saccharomyces cerevisiae beta-glucan preparations and vitamin C (0 0, 100,110, 0,04, g) were added per kg of diet, and each experimental group was designed 2 Repeat. Seventy of Penaeus monodon with body weight about 2 ~ 3g were housed in outdoor cement pool (3m × 2m × 1m) for 30 days. Twenty shrimp were injected with Vibrio alginolyticus or white spot virus after the feeding experiment. The results showed that the combination of Saccharomyces cerevisiae β-glucan and vitamin C significantly increased the growth, survival rate and serum protein of Penaeus monodon and significantly reduced the feed coefficient, which was equivalent to that of high-dose VC group. In the challenge test, the combination of S. cerevisiae beta-glucan formulation and vitamin C significantly increased the survival rate of white spot virus-infected shrimp, whereas high doses of VC did not achieve comparable results with very high mortality rates for the low-dose VC and control groups