Clinical Evaluation of Shenjiang Zhili Mixture for Treatment of Piglet Yellow Dysentery
To evaluate the clinical efficacy of Shenjiang Zhili Mixture for treatment of piglet yellow dysentery,the suspected cases were chose from the pig farms around Lanzhou city.After the preliminary diagnosis by epidemiological investigation and clinical observation,piglet yellow dysentery was further confirmed by laboratory bacteriological examination.Then Shenjiang Zhili Mixture was administered to these pigs,which were observed for clinical signs including activity,diet and diarrhea.The fecal samples were also collected for examination of Escherichia coli loads using blood agar plates and chromogenic culture.The results showed that piglets'activities were significantly improved or returned to normal after drug treatment.The cure rates of yellow dysentery in three pig farms(Wangdexiang Pig Farm in Jingtai County,Gansu Chanmu Agricultural Science and Technology Co.,Ltd.and Miaozhongjun Pig Farm in Yongdeng County)were 87.6%,89.1%and 84.1%,respectively.The E.coli loads in diseased pig feces were also significantly reduced after drug treatment.The results indicated that Shenjiang Zhili Mixture had good treatment effect on piglet yellow dysentery and would deserve for further development of a new drug.