全文获取类型
收费全文 | 106篇 |
免费 | 5篇 |
国内免费 | 1篇 |
专业分类
8篇 | |
综合类 | 15篇 |
农作物 | 1篇 |
水产渔业 | 5篇 |
畜牧兽医 | 78篇 |
植物保护 | 5篇 |
出版年
2023年 | 1篇 |
2020年 | 2篇 |
2018年 | 2篇 |
2017年 | 2篇 |
2016年 | 3篇 |
2015年 | 2篇 |
2014年 | 2篇 |
2013年 | 11篇 |
2012年 | 1篇 |
2011年 | 1篇 |
2010年 | 2篇 |
2008年 | 1篇 |
2006年 | 1篇 |
2005年 | 3篇 |
2002年 | 2篇 |
2001年 | 2篇 |
1999年 | 3篇 |
1998年 | 9篇 |
1997年 | 3篇 |
1996年 | 3篇 |
1995年 | 2篇 |
1994年 | 3篇 |
1993年 | 2篇 |
1992年 | 4篇 |
1991年 | 6篇 |
1990年 | 2篇 |
1989年 | 4篇 |
1988年 | 3篇 |
1986年 | 1篇 |
1985年 | 4篇 |
1984年 | 1篇 |
1982年 | 2篇 |
1979年 | 1篇 |
1975年 | 3篇 |
1974年 | 1篇 |
1973年 | 6篇 |
1972年 | 2篇 |
1971年 | 2篇 |
1970年 | 1篇 |
1969年 | 2篇 |
1968年 | 1篇 |
1967年 | 1篇 |
1964年 | 1篇 |
1958年 | 1篇 |
排序方式: 共有112条查询结果,搜索用时 0 毫秒
91.
92.
Effect of cyclophosphamide immunosuppression on the immunity of turkeys to viral rhinotracheitis. 总被引:2,自引:0,他引:2
R C Jones C J Naylor A al-Afaleq K J Worthington R Jones 《Research in veterinary science》1992,53(1):38-41
Turkey poults, free of antibodies to turkey rhinotracheitis (TRT) virus were treated with cyclophosphamide on days 1, 2 and 3 after hatching and vaccinated by eyedrop when 10 days old with a Vero cell-attenuated preparation of TRT virus. No ELISA antibodies to TRT virus developed in the sera of these poults but they were as resistant to virulent virus challenge 21 days later as vaccinated groups which were not cyclophosphamide-treated but produced humoral antibodies. Following challenge with virulent virus at 31 days old cyclophosphamide-treated unvaccinated poults developed a more severe clinical response than untreated birds and had higher virus titres in tracheal swabs. The findings show that the respiratory tract of turkeys may be resistant to TRT despite the absence of ELISA antibodies in the serum. 相似文献
93.
94.
95.
96.
97.
98.
Ceroid lipofuscinosis was diagnosed by histopathological and histochemical findings in 17 related border collie dogs and by clinical signs in 6 of their litter mates. Behavioural changes, first hyperactivity and later aggression, commenced at 16 to 23 (mean 19.5) months of age. Motor abnormalities and blindness were observed at the mean ages of 20.8 and 21.2 months, respectively. All dogs were euthanased 1 to 6 months after the onset of clinical signs, mean age 23.1 months. Pedigree data supported an autosomal recessive mode of inheritance. 相似文献
99.
100.