Infectious bovine rhinotracheitis-Infectious pustular vulvovaginitis (IBR/IPV) virus was isolated and identified from a herd of cattle and buffaloes, suffering from respiratory and genital disorders during May 2007. These animals were located at Giza Governorate with a total number of 350, (200 in open farms and 150 in closed farms). Vaginal, nasal and ocular swabs were collected (136 samples w...

BACKGROUND Reports worldwide indicate high prevalence of Chlamydophila spp. infection in cattle. To assess the prevalence in Sweden, 525 cows in 70 dairy herds with reproductive disorders was investigated. METHODS To detect antibodies two commercially available kits were used. Moreover, 107 specimens, including vaginal swabs, organ tissues and milk were analysed by Polymerase Chain Reaction (...

has been a hotly debated issue in the US. The initial issue was the effect of drugs, chiefly antibiotics, on cheese manufacturing processes. Reports in the press highlighting contamination of milk and other dairy products with antibiotics and other animal drugs quickly raised the issue of food safety and resulted in the intervention of governmental agencies regulating the use of animal medicati...

The purpose of this study was to determine the milk production and reproductive performance dairy cattle in groups different ages at first calving elucidate effect age on interval Indonesian Holstein cattle. observation method use study. Records 80 cows which were born Indonesia had range 23-32 months used as materials. Cows divided into two based (AFC). Group I with 23-27 group II 28-32 months...

BACKGROUND Dairy cattle were used as sentinels for the presence of Leptospira infection in Swedish livestock in four regions contrasting in precipitation and temperature during the summer time. The aim of the study was to estimate the prevalence of five serovars of Leptospira of low pathogenicity in dairy cattle in these four regions. FINDINGS Around 150 blood samples were collected from five...

The global distribution of bluetongue virus (BTV) has been changing recently, perhaps as a result of climate change. To evaluate the risk of BTV infection and transmission in a BTV-endemic region of California, sentinel dairy cows were evaluated for BTV infection, and populations of Culicoides vectors were collected at different sites using carbon dioxide. A deterministic model was developed to...

Neospora caninum (N. caninum) and Toxoplasma gondii (T. gondii) are both obligate intracellular protozoan parasites, which have gained considerable attention because of their role in bovine abortion. This study aimed to detect anti-N. caninum and -T. gondii in bulk milk of dairy cattle, Mashhad, Iran. The bulk milk samples were collected from July 2014 to June 2015 and analyzed for anti-N. cani...

SURÝNEK JAKUB, VRTKOVÁ IRENA, KNOLL ALEŠ. 2016. Mycoplasma bovis Was not Detected in Milk from Dairy Cattle in the Czech Republic. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 64(1): 165–168. The aim of this study was to screen selected Czech dairy cattle farms for presence of Mycoplasma bovis. Between 2012 and 2014, 160 individual samples of cow milk, 60 colostrum sa...

Feces collected from 541 milking cows on two dairy farms each in Vermont, New York, Pennsylvania, Maryland, Virginia, North Carolina, and Florida were examined for the presence of Cryptosporidium oocysts. Oocysts were concentrated from 15 g of feces from each cow and DNA was extracted. A two-step nested PCR protocol was used to amplify an 830 base pair fragment of the SSUrRNA gene. PCR-positive...

Sporadic salmonellosis has been reported in mature lactating dairy cattle in the southwestern United States and is an intriguing problem in that Salmonella can be cultured from faecal samples of these cattle throughout the year. However, it is pathogenic only during late summer/early autumn and in certain years. We sampled apparently healthy (n=10) and diarrhoeic (n=10) cattle during an outbrea...