Insects as alternative feed for ruminants:comparison of protein evaluation methodsOA

Background: The high dependence of intensive ruminant production on soybean meal and the environmental impact of this crop encourage the search for alternative protein-rich feeds. The use of insects seems promising, but the extent of their ruminal protein degradation is largely unknown. This parameter has major influence not only on N utilization efficiency but also on the environmental burden of ruminant farming. In addition, although assessing ruminal N degradation represents a key first step ...     

A review of the resistome within the digestive tract of livestockOA

Antimicrobials have been widely used to prevent and treat infectious diseases and promote growth in food-production animals. However, the occurrence of antimicrobial resistance poses a huge threat to public and animal health, especial y in less developed countries where food-producing animals often intermingle with humans. To limit the spread of antimicrobial resistance from food-production animals to humans and the environment, it is essential to have a comprehensive knowledge of the role of th...     

γ射线防治美洲幼虫腐臭病在商业上的应用

引言美洲幼虫腐臭病(AFB)是一种蜜蜂幼虫病,可造成蜂蜜生产、蜂数和蜂群的重大损失。此病系幼虫芽孢杆菌(Bacilluas larvae)引起,可由受该菌孢子污染的蜂具在箱、群之间传播。用γ射线照射受污染的蜂具,可杀死上面的孢子,对养蜂业极为有益。为此,本文特谈谈这种技术。     

实用中的现代诊断方法兽医微生物学中的免疫诊断技术

当一只动物患一种传染病时,该宿主往往以通过增加免疫应答来保护自己。因此,检查出这种应答在诊断中是会有价值的。本文描述检出免疫应答的方法,特别涉及到免疫诊断用的工具箱(Kit),或能迅速得到工具箱的地区,因为使用它们正是开业兽医的本份。     

海狸鼠艾美尔球虫病的治疗

<正>1991年11月至12月在某地区的一个饲养场,有140只母海狸鼠发生了艾美尔球虫病.按照方法检查了肠内容物,找出了艾美尔球虫卵囊.由此推测该病已经传染到饲养场.一、发病症状该病发生于2至4月龄(即断奶前、后)的幼鼠.病鼠活动逐渐变少,精神不振,完全拒绝采食.排便动作频繁,粪便呈稀粥状或呈液状,并含有粘膜成分,有时也含有血液.24小时后病鼠死亡.临死前2~3只病鼠聚到一起,前爪互相紧靠,并在这种姿势下达到强直.两个月内共死亡357只(死亡率达60%).