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分析了奶牛产力性难产、产道性难产及胎儿性难产的病因,介绍了其临床症状及相关防治措施,为有效预防和救治奶牛难产提供参考。 相似文献
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Jensen TB Toft N Bonde MK Kongsted AG Kristensen AR Sørensen JT 《Preventive veterinary medicine》2012,103(1):31-37
Mortality of sows is a major problem for pig production worldwide. In this study, we used hierarchical multivariable logistic analyses to investigate different risk factors for mortality at the sow and herd level in herds with group-housed pregnant sows. Data included 3652 pregnant and 1266 lactating sows from 34 sow herds. A clinical examination for 16 clinical signs was carried out for each sow, and information about 16 herd related factors was obtained by interviews. Farm records were used to obtain information about whether or not sows died suddenly or were euthanized within 3 months after the clinical examination. Factors increasing the risk of sow mortality in the gestation unit were solid pen floors (OR = 1.87), presence of vulva bites (OR = 1.73) and unwillingness to stand when approached (OR = 1.62). Factors increasing the risk of sow mortality in the lactation unit were pale vulva color (OR = 12.69), body leanness (OR = 4.11), and presence of shoulder ulcers (OR = 2.89). The estimated between herd variation was small. Thus, the findings for the sow level variables may be generally applicable for sows in herds with group housed systems. 相似文献
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以烟台地黄瓜为材料,研究了百泰、凯润、安克、克露、乙膦铝和代森锰锌等药剂在发病前和发病后施药对保护地黄瓜霜霉病的预防及防治效果,以及对黄瓜产量的影响。试验结果表明,发病前喷施百泰、凯润效果最好,防效在97%以上;安克、克露、代森锰锌防效次之,防效也高达88%以上;乙膦铝防效较差,为81.00%。发病后喷施凯润防效在93.83%以上,百泰、安克和代森锰锌防效都在80%以上。发病后喷施百泰、凯润和安克比CK(清水)分别增产18.46%、24.36%和22.22%,增产效果明显。因此推荐凯润为防治保护地黄瓜霜霉病的理想药剂,百泰、安克和代森锰锌可以作为保护性杀菌剂使用。 相似文献
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Lewis DH Chan DL Pinheiro D Armitage-Chan E Garden OA 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2012,26(3):457-482
Sepsis, the systemic inflammatory response to infection, represents the major cause of death in critically ill veterinary patients. Whereas important advances in our understanding of the pathophysiology of this syndrome have been made, much remains to be elucidated. There is general agreement on the key interaction between pathogen-associated molecular patterns and cells of the innate immune system, and the amplification of the host response generated by pro-inflammatory cytokines. More recently, the concept of immunoparalysis in sepsis has also been advanced, together with an increasing recognition of the interplay between regulatory T cells and the innate immune response. However, the heterogeneous nature of this syndrome and the difficulty of modeling it in vitro or in vivo has both frustrated the advancement of new therapies and emphasized the continuing importance of patient-based clinical research in this area of human and veterinary medicine. 相似文献
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