Recent Orbivirus occurrences in the Americas have been investigated using whole genome amplification and sequencing followed by phylogenetic analysis. The Bluetongue virus (BTV) and Epizootic haemorrhagic disease virus (EHDV) whole genomes were amplified without prior sequence knowledge and deep...

This book reports on the beef 2007-08 study in 24 States of USA with the largest beef-cow populations. Focusing on the prevalence and control of Bovine Viral Diarrhoea Virus (BVDV), the book is divided into five sections, section I provides an overview of BVDV and control of BVDV, including testing ...

The herd prevalence of Leptospira borgpetersenii serovar hardjo infection and associated risk factors were determined for beef cow/calf operations in California, Florida, Mississippi, Missouri, South Dakota and Texas, USA. Three veterinary practitioners randomly selected in each state completed a...

Objective: To analyse the sulfur content of water and forage samples from a geographically diverse sample of beef cow-calf operations in the United States and to estimate frequency and distribution of premises where forage and water resources could result in consumption of hazardous amounts of...

Mention is made of the apparatus developed by the Washington Station for the diagnosis of MASTITIS by measuring the degree of electrical conductivity of milk. As the result is known immediately a physical examination can be made at once and samples collected for confirmatory tests. Experiments at...

COLORADO, 1943-44.Actinomyces necro-phorus was shown to be present in nearly all liver abscesses in beef cattle. Examination revealed a correlation between the occurrence of ulcerativo lesions in the rumen and abscesses in the liver. An experiment was under way to determine whether vitamin A...