Impact of management interventions on helminth levels, and body and blood measurements in working donkeys in South Africa.
Impact of management interventions on helminth levels, and body and blood measurements in working donkeys in South Africa.
复制标题
管理干预措施对南非工作驴的蠕虫水平以及身体和血液测量的影响。
DOI：
10.1016/s0304-4017(02)00113-9
复制
发表时间：
2002
影响因子：
2.6
通讯作者：
Alan John Guthrie
中科院分区：
文献类型：
--
作者：
Sonja Matthee;Sonja Matthee;R. C. Krecek;S. Milne;M. Boshoff;Alan John Guthrie
该研究的目的是确定替代管理干预措施对线虫水平和南非工作驴的状况的影响。24头成年驴（Equus asinus）在200 km半径范围内被随机分配到8个围场。在一项为期16个月的研究中，对三种管理干预措施和一个对照组各进行了两次重复测试。干预措施包括每月从驴放牧的围场中清除粪便、冬季前莫昔克丁处理以及冬季前莫昔克丁处理和每月粪便清除的组合。比较了不同干预措施对线虫粪卵计数、动物活重、身体状况评分和一般血液化学的影响。此外，从每个围场的牧场采集牧草样品，以确定每公斤干物质中第三阶段幼虫（L3）的数量。在研究结束时，对安乐死后的8只动物进行蠕虫回收和计数。在粪便卵计数和幼虫培养物中，杯口线虫占蠕虫物种组成的最大部分。每月粪便清除单独没有显着减少L3牧场和考虑更频繁的删除进行了讨论。冬前莫昔克丁给药导致粪便虫卵计数100%减少，平均虫卵重现期为42-55天，平均虫卵计数减少长达8个月，所有给药驴的总蠕虫负荷减少。它还导致驴的活重、血红蛋白浓度、红细胞压积和一定程度上的身体状况评分改善。
The aim of the study was to determine the effect of alternative management interventions on levels of nematodes and the condition of working donkeys in South Africa. Twenty-four adult donkeys (Equus asinus) within an area of 200km radius were randomly allocated to eight paddocks. Two replicates each of three management interventions together with a control group were tested in a 16-month study. The interventions included monthly removal of feces from paddocks where the donkeys grazed, a pre-winter moxidectin treatment, and a combination of a pre-winter moxidectin treatment and monthly fecal removal. The influence of the different interventions on the nematode fecal egg counts, animal live weights, body condition scores and general blood chemistry were compared. In addition, herbage samples were collected from the pastures in each paddock to determine the number of third-stage larvae (L3) per kg dry matter. At the end of the study worm recoveries and counts were performed on eight of the animals following euthanasia. The cyathostomes represented the largest portion of the helminth species composition in both the fecal egg counts and larval cultures. Monthly fecal removal alone did not significantly reduce the L3on pasture and consideration of more frequent removal is discussed. Pre-winter moxidectin treatment resulted in a 100% reduction in fecal egg counts, an average egg reappearance period of 42–55 days, a reduced average egg count for up to 8 months, and reduced total helminth burdens in all the treated donkeys. It also resulted in improved live weights, hemoglobin concentration, packed cell volumes and to some extent body condition score of the donkeys.