全文获取类型
收费全文 | 102篇 |
免费 | 6篇 |
专业分类
林业 | 1篇 |
2篇 | |
综合类 | 8篇 |
农作物 | 1篇 |
水产渔业 | 2篇 |
畜牧兽医 | 86篇 |
植物保护 | 8篇 |
出版年
2018年 | 2篇 |
2016年 | 3篇 |
2015年 | 1篇 |
2014年 | 4篇 |
2013年 | 25篇 |
2012年 | 3篇 |
2011年 | 3篇 |
2009年 | 1篇 |
2008年 | 1篇 |
2007年 | 3篇 |
2006年 | 6篇 |
2004年 | 2篇 |
2003年 | 5篇 |
2002年 | 2篇 |
2001年 | 1篇 |
2000年 | 3篇 |
1998年 | 2篇 |
1997年 | 5篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1993年 | 2篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1989年 | 1篇 |
1988年 | 2篇 |
1986年 | 1篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1979年 | 2篇 |
1978年 | 7篇 |
1976年 | 1篇 |
1974年 | 1篇 |
1971年 | 1篇 |
1970年 | 1篇 |
1966年 | 1篇 |
1963年 | 2篇 |
1960年 | 3篇 |
1951年 | 1篇 |
排序方式: 共有108条查询结果,搜索用时 351 毫秒
31.
32.
在过去的25年,尽管禽流感、新城疫和其他重要的禽类病毒性疫病暴发过多次,但在面对疫病危机时,多把问题集中在环境中病毒的生存状况.本综述主要探讨禽流感病毒(AIV)和新城疫病毒(NDV),而其他禽类病毒和哺乳动物类病毒只作为比较目的之用.AIV和NDV在呼吸道和下消化道繁殖,在粪便中这些病毒的滴度很高.…… 相似文献
33.
34.
TED S. STASHAK D.V.M. M.S. DANIEL J. YTURRASPE D.V.M. PH.D † 《Veterinary surgery : VS》1978,7(2):48-55
The selection of a suture material, in the past, was based primarily on habit, guesswork and physical properties. This is understandable because there was a limited number of materials to select from and the interaction of suture material with tissues was not understood. 相似文献
35.
Hunt GB Tisdall PL Webb A MacPherson GC Brain P Malik R 《Australian veterinary journal》2000,78(8):530-532
Three male Poodles (two Toy, one Miniature) were presented to their veterinarians for evaluation of urolithiasis and varying degrees of hepatic encephalopathy. All three dogs were diagnosed as having intrahepatic shunts and referred for surgical correction. In each case, shunts arose from the right branch of the portal vein and were amenable to perivascular dissection caudal to where the vessel entered the hepatic parenchyma and to placement of perivascular cellophane bands to achieve shunt attenuation. During the same period, a female Miniature Poodle also presented for treatment of a congenital portosystemic shunt discovered during evaluation for generalised motor seizures. This animal had an extrahepatic portoazygous shunt that was completely ligated. Congenital portosystemic shunts have not previously been identified in Toy and Miniature Poodles at the University Veterinary Centre, Sydney and the anatomical types of shunt seen in this breed have not previously been reported in a consecutive series of cases. The three male dogs are noteworthy for a number of reasons: all had intrahepatic shunts, despite being small breed dogs; all three presented in a similar fashion, and all had shunts of an anatomical type amenable to placement of cellophane bands. One male dog died within 12 hours of surgery, the remaining three dogs survived and their liver function was normal at follow-up between 2 and 3 months after surgery. Use of cellophane bands for successful attenuation of intrahepatic shunts has not been previously reported. 相似文献
36.
37.
38.
A caudal mediastinal abscess was diagnosed in a 2-year-old German Short-haired Pointer with acute onset of lethargy, pyrexia and tachypnoea. The abscess was managed surgically by median sternotomy, abscess content evacuation and omentalisation of the abscess cavity via the diaphragm. Although surgical management of mediastinal abscesses has been reported previously, this is the first report to describe successful management of the condition in a dog by omentalisation. 相似文献
39.
40.
WALTER E. WEIRICH D.V.M. PH.D. WILLIAM E. BLEVINS D.V.M. M.S. 《Veterinary surgery : VS》1978,7(1):2-7
Twelve dogs and one cat were operated to close a ventricular septal defect. The method of patient selection, associated lesions, techniques used to correct the defect and significance to the total population of small animals with congenital lesions is discussed. Ten of 13 animals survived surgery. When indicated, this procedure can be safely performed to correct ventricular septal defect. 相似文献