Acta Veterinaria et Zootechnica Sinica ›› 2024, Vol. 55 ›› Issue (11): 5259-5266.doi: 10.11843/j.issn.0366-6964.2024.11.041

• Basic Veterinary Medicine • Previous Articles     Next Articles

Clinical Efficacy Test of Compound Oxyclozanide Suspension on Fasciola hepatica and Nematodes of Yak

Juan WANG1(), Xueqiang YAO2, Linlin LU2, Jiang LI2, Kairen ZHOU1, Bintao ZHAI2, Xuzheng ZHOU2,*(), Jiyu ZHANG2,*()   

  1. 1. College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
    2. Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
  • Received:2024-01-12 Online:2024-11-23 Published:2024-11-30
  • Contact: Xuzheng ZHOU, Jiyu ZHANG E-mail:1281387610@qq.com;zhxuzheng@163.com;zhangjiyu@caas.cn

Abstract:

The purpose of the study was to evaluate the clinical efficacy of the compound oxyclozanide suspension through the deworming testing, and to provide reference basis for its clinical use. Seventy-five Qinghai Huanhu yaks were divided into 5 groups randomly, with 15 yaks in each group, which were compound oxyclozanide suspension low dose (0.125 mL·kg-1), medium dose (0.250 mL·kg-1), high dose (0.500 mL·kg-1), control group (0.250 mL·kg-1) and blank control group. The test cycle was 28 days. The feces were collected on the first day and on days 7, 14, 21, and 28 after administration, and the egg counts (eggs per gram, EPG) of Fasciola hepatica and digestive tract nematodes is measured, and the precision of deworming and the rate of egg conversion were calculated. The blood routine, blood biochemical indicators value were measured before and on day 28 of the administration. The precision deworming rates of low, medium, and high doses of compound oxyclozanide suspension against yak Fasciola hepatica were 97.5%, 100.0%, and 100.0% respectively, and the egg negative conversion rates were 80%, 100% and 100% respectively. The recision deworming rate of the imported medicine against yak Fasciola hepatica was 99.4%, and the egg negative conversion rate was 93.3%. The precision deworming rate of low, medium and high doses of compound oxyclozanide suspension against yak digestive tract nematodes was 99.2%, 100.0% and 100.0%, and the egg transfer rate was 80%, 100% and 100%, respectively, while the precision deworming rate of control imported drug against yak digestive tract nematodes was 99.9%, and the egg transfer rate was 93.3%.The results of this yak test showed that the compound oxyclozanide suspension had a significant treatment effect on the Fasciola hepatica insects and digestive tract nematodes. There is no significant difference in the clinical effects between the high and medium dose groups. Therefore, the recommended dose for clinical application was 0.250 mL·kg-1 in the medium dose group.

Key words: compound oxyclozanide suspension, yak, Fasciola hepatica, digestive tract nematodes, pharmacodynamics

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