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Two kinds of specific chicken egg yolk immunoglobulins (IgYs), IgY‐WSSV and IgY‐VP28, were, respectively, raised against the 2 mM binary ethylenimine (BEI)‐inactivated white spot syndrome virus (WSSV) and a principal envelope protein VP28. The activity of purified specific IgYs was stable under the conditions of 20–70 °C, pH 3.0–10.0 and 0–700 g L−1 sucrose solution. In the neutralization assay, these...
The objective of this study was to evaluate the effect of dietary supplementation of a probiotic bacterium, Bacillus subtilis, on the growth, immune response and antioxidant activities of shrimp (Litopenaeus vannamei). Shrimps with an average initial weight of 2.11±0.17 g were randomly assigned to four groups with three replicates. The control group was fed a basal diet, and three treated groups were...
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