Cattle are fed moderate amounts of fatty acids (FA) with the objective to enhance growth, lactation, health and reproduction. Most lipids fed to cattle are in the form of triacylglycerols in plant and animal products or as free FA or FA saponified to Ca in processed fat supplements. One of the premises of feeding fat to cattle is the inherited more dense caloric content than other dietary ingre...

In southern African transfrontier conservation areas (TFCAs), people, livestock and wildlife share space and resources in semi-arid landscapes. One consequence of the coexistence of wild and domestic herbivores is the risk of pathogen transmission. This risk threatens local livelihoods relying on animal production, public health in the case of zoonoses, national economies in the context of tran...

Heat stress in cattle results in millions of dollars in lost revenue each year due to production losses, and in extreme cases, death. Death losses are more likely to result from animals vulnerable to heat stress. A study was conducted to determine risk factors for heat stress in feedlot heifers. Over two consecutive summers, a total of 256 feedlot heifers (32/ breed/ year) of four breeds were o...

Cattle feeding enterprises operate amid variability originating in prices and production. This research explicitly models yield risks related to cattle feeding by relating the mean and variance of yield performance factors to observable conditioning variables. The results demonstrate that pen characteristics, such as entry weight, gender, placement season, and location influence the mean and va...

background and purpose: fascioliasis is one of the zoonotic diseases in the world that has public health and economic perspectives. the aim of this study was to investigate the prevalence of fascioliasis in slaughtered cattle in the industrial slaughterhouse of arak, iran (2007-2010). materials and methods: this study sample was consisted of 648994 head of cattle including 292797 sheep, 81012 c...

Cattle are the main reservoir for human infection by pathogenic Escherichia coli and Salmonella enterica. To prevent entry of these foodborne pathogens into the human food chain, management factors at the farm level must be identifi ed and controlled. External sources of contamination, such as birds, should be considered as potential sources of transmission over long distances. In this review, ...

Campylobacter jejuni clone SA is the major cause of sheep abortion and contributes significantly to foodborne illnesses in the United States. Clone SA is hypervirulent because of its distinct ability to produce systemic infection and its predominant role in clinical sheep abortion. Despite the importance of clone SA, little is known about its distribution and epidemiological features in cattle....

BACKGROUND Brucellosis is a zoonosis of public health importance worldwide. In Tanzania, the disease is underreported due to insufficient awareness, inadequate diagnostic protocols, including lack of appropriate reagents for diagnosis. Livestock and wildlife are considered potential sources of infection to humans; however, the role played by these carriers in the epidemiology of the disease in ...

Background:Liver lesions in cattle not only have negative effects on the cattle breedingindustry, but also lead to loss of animal protein production, and in particularto endanger the consumers’ health. OBJECTIVES:This study was carried out to examine the macroscopic and histopathologiclesions of liver in slaughtered cattle of Zabol City. METHODS:Livers of 281 cattle slaughtered at the industria...