Indian Herbal Medications to Replace Antibiotics for Shrimp Penaeus monodon Post Larvae

Herbs with known antibacterial characteristics were chosen and extracted with different polar and non-polar solvents and screened against five different shrimp pathogens: Pseudomonas aeruginosa, Staphylococcus aureus, Aeromonas hydrophila, Vibrio harveyi, and V. parahaemolyticus. Five different diets were prepared by incorporating equal proportions of these five herbal extracts at increasing concentrations: Control (0), HD1 (200), HD2 (400), HD3 (600), and HD4 (800 mg/kg of diet). Diets were individually fed to the Penaeus monodon post larvae (PL 25) for 30 days. At 10-day intervals, post larvae were bath challenged with V. harveyi and observed for pathological signs. Post larvae fed the HD 4 diet enjoyed a 75% improvement in survival over the control group and significantly improved final weights and SGR (P < 0.05). The herbal diets HD1 to HD4 helped to decrease the Vibrio load in P. monodon post-larvae after challenging.     

仔猪功能性饲料添加剂配方筛选

以虫草头孢菌粉、黄芪粉及神曲粉作为原料进行了仔猪功能性饲料添加剂配方筛选。结果表明:虫草头孢菌粉和黄芪粉以1:1的比例混合后再按1%的比例添加到饲料中,可以显著提高仔猪免疫力,促进其健康生长。与对照相比,试验组日增重提高27.3%、料肉比下降21.1%;血浆免疫指标IgG增加27.4%、NO含量增加13.4%、NOS活性增加6.5%、iNOS活性增加26.7%。