农学 >>> 兽医学 >>> 兽医科学基础学科 家畜解剖学 家畜组织胚胎学 兽医免疫学 家畜病理学 兽医药理学 兽医临床学 兽医卫生检疫学 家畜寄生虫学 家畜传染病学 家畜病毒学 中兽医学 兽医器械学 兽医学其他学科
搜索结果: 1-8 共查到兽医学 the environment相关记录8条 . 查询时间(0.171 秒)
Genotype by environment interactions for weaning weight in beef cattle were tested using several definitions of environments. Four breeds of beef cattle (Hereford, Aberdeen Angus, Beef Simmental, and ...
Sulfonamides are widely used in treatment of animals and humans but pose a risk as environmental pollutants. An analysis of 1588 publications focused on sulfonamides is presented here. The review deal...
Although avian mycobacteriosis is not prevalent among domestic fowl used for intensive husbandry, it has been described in both free living birds and birds in captivity, e.g., zoological gardens and s...
In the Czech Republic, most mycobacterial infections in pigs are caused by the Mycobacterium avium complex (MAC) and potentially pathogenic mycobacteria (PPM) derived from the environment. This study ...
Between 1997 and 2003, in one herd of breeding pigs with 90 sows and two boars, positive and dubious responses to avian tuberculin were detected in 4 and 72 pigs, respectively. Pigs were examined usin...
Genotype by environment interaction (G×E) is a potential source of reduced efficiency in genetic improvement programs in livestock. The objective of the current work consisted of checking the existenc...
While isolating sheep pox virus from samples of air, water, hay and grain experimentally infected with this agent various filters and eluting media were tested. Possible usage of enzyme-lin...
Sources of mycobacterial infections in 50 pig herds in the Czech Republicwere investigated during the years 1996 to 2002. A total of 2 412 samples from the external environment (feeds, bedding materia...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...