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Summary Generalized cowpox infection in the Patagonian cavy may represent a threat to the health of immunocompromised persons. We report the first case of cowpoxvirus infection in the Patagonian cavy in an educational animal park. The mara developed extensive pox lesions, shedding large amounts of viral particles. The ending of vaccination programmes against smallpox in the late 1970's may lead to an increase in susceptibility of humans to zoonotic poxviruses. 相似文献
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Understanding the interactions between nutrition and immune system is crucial for adjusting nutrient allowances in dietary formulations that optimize production efficiency. Among various animal proteins, fish meal (FM) is rich in protein (amino acids), readily available throughout most of the world, and competitively priced against other animal proteins (e.g. milk and blood). In addition, many researchers reported that FM is traditionally recognized as a high digestible protein with a high content of amino acids, vitamins and minerals for pigs. Supplementation of fatty acids by FM and fish oil (FO) is one strategy to modify an animal immune response. As a result of FM and FO effects, those supplementations can result in improved performance and immunity of young animals. 相似文献
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选用ＡＡ肉鸡进行试验，试验在生产后期进行，试验分为两组：对照组（含有３％的秘鲁鱼粉）和试验组（含有３％的鱼精粉），两组的营养水平接近。试验组平均日增重为４７．１８ｇ，对照组为４７．０６ｇ；试验组的料肉比为２．６８４，对照组为２．７４５。两者的重要生产性能指标接近，差异不显著。试验结果表明，在生长后期的肉鸡日粮中，使用鱼精粉替代进口鱼粉并不影响试验鸡的生产性能。 相似文献
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鱼用饲料配制需注意的问题 总被引：3，自引：0，他引：3
近年来淡水养殖发展较快 ,带动了鱼饲料的快速发展 ,各地饲料厂纷纷推出众多的品种和规格的鱼饲料。但许多饲料厂还是按畜禽饲料的模式生产、销售 ,不适宜淡水养殖 ,给养殖户带来损失。为提高鱼产量 ,降低养鱼成本 ,了解鱼饲料设计加工的要点尤为重要。现提出配制生产鱼饲料需要注意的几个问题 ,供大家参考。1 鱼的品种多 ,要求饲料规格多淡水鱼类养殖比较多的有鲤鱼、草鱼、鲫鱼、罗非鱼等品种 ,不同食性的鱼类 ,对饲料的要求是不一样的。研究认为 ,肉食性鱼类对饲料蛋白质的需要量为 40 %～ 50 % ,杂食性鱼类为 3 0 %～45 % ,草食性鱼类… 相似文献
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