Effect of different East Coast Fever control strategies on fertility, milk production and weight gain of Sanga cattle in the Central Province of Zambia
Effect of different East Coast Fever control strategies on fertility, milk production and weight gain of Sanga cattle in the Central Province of Zambia
复制标题
不同东海岸热控制策略对赞比亚中部省桑加牛生育力、产奶量和增重的影响
DOI：
10.1023/a:1018417004323
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发表时间：
1997
影响因子：
2.2
通讯作者：
P. Sinyangwe
中科院分区：
文献类型：
--
作者：
B. Minjauw;J. Otte;A. James;J. J. de Castro;P. Sinyangwe
五种不同的东海岸热病(细小泰勒氏菌感染)控制策略在赞比亚中部省份传统管理的Sanga牛群体中进行了为期2.5年的测试，这些策略基于壁虱控制和/或ECF免疫。两组在强化控制下(每周喷洒一次)，一组免疫，一组不免疫。另外两组未接种硬蜱，一组免疫，另一组未免疫，而第五组接种ECF并保持战略防治(每年喷洒18次)。控制虱子增加了产奶量和体重增加，但不能提高生育率。免疫对牛的生产既没有明显的不利影响，也没有明显的益处。战略防治和免疫相结合产生了最高水平的生产，同时降低了其他硬虱传播疾病的潜在风险。
Five different East Coast Fever (ECF) (Theileria parva infection) control strategies, based on tick control and/or ECF immunization, were tested in groups of traditionally managed Sanga cattle in the Central Province of Zambia over a period of 2.5 years. Two groups were kept under intensive tick control (sprayed weekly), one group immunized and one non-immunized. Two further groups were under no tick control, one group immunized and one non-immunized, while a fifth group was immunized against ECF and maintained under strategic tick control (18 sprays per year). Tick control increased milk production and weight gain but not fertility. Immunization had neither marked detrimental nor beneficial effects on the cattle productivity. The combination of strategic tick control and immunization resulted in the highest level of production and at the same time reduced the potential risk from other tick-borne diseases.