نتایج جستجو برای: cattle farms
تعداد نتایج: 70365 فیلتر نتایج به سال:
Bovine tuberculosis (TB) poses a serious threat for agricultural industry in several countries, it involves potential interactions between wildlife and cattle and creates societal problems in terms of human-wildlife conflict. This study addresses connectedness network analysis, the spatial, and temporal dynamics of TB between cattle in farms and the European badger (Meles meles) using a large d...
In the Alps, summer farms are temporary units where the livestock herds are moved during summer to graze on highland pastures. Th is study aimed to analyze the role of summer farms in the dairy farming systems of the Trento province, in the eastern Italian Alps. Data on the structures and management of the 395 active summer farms were collected from the veterinarian services of the province: 34...
A serological survey of brucellosis in cattle and buffalo was performed in 23 States of India. A total of 30,437 bovine samples, comprising 23,284 cattle and 7,153 buffalo (Bubalus bubalis), were screened. The screening initially used the rose bengal plate test: doubtful and positive samples were then titrated in the serum tube agglutination test. The overall prevalence rate of antibodies was 1...
The objective of this case-control study was to identify farm-level risk factors associated with bovine tuberculosis (bTB) in dairy cows in northern Thailand. Spatial analysis was performed to identify geographical clustering of case-farms located in Chiang Mai and Chiang Rai provinces in northern Thailand. To identify management factors affecting bTB status, a matched case-control study was co...
BACKGROUND Campylobacteriosis is a zoonotic disease, and animals such as poultry, pigs and cattle may act as reservoirs for Campylobacter spp. Cattle shed Campylobacter spp. into the environment and they can act as a reservoir for human infection directly via contact with cattle or their faeces or indirectly by consumption of contaminated food. The aim of this study was to determine the prevale...
In order to investigate the prevalence of infection with bovine viral diarrhoea virus(BVDV) of cattle in Ahvaz, blood samples were collected from jugular vein of 572 cattle(521 female, 51 male) from industrial and nonindustrial farms. Sera were stored at -20?C while waiting for analysis. The sera were tested by ELISA, using a commercial ELISA kit for detection of specific antibody to bov...
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...
JAVMA, Vol 230, No. 6, March 15, 2007 T US dairy industry is moving toward fewer dairy farms with more cattle per farm. Between 1995 and 2005, the number of dairy farms decreased by 43.9% (from 139,670 to 78,295), but the total number of milk cows decreased by only 4.5% (from 9.47 to 9.04 million). Consequently, the average herd size for dairies in the United States has almost doubled during th...
A randomised controlled trial was used to investigate the effect of three complex management intervention packages to reduce the burden of E. coli O157 in groups of young-stock on cattle farms in England and Wales. All intervention farms were assigned measures to avoid buying in new animals and having direct contact or sharing water sources with other cattle. Furthermore, package A (7 farms) ai...
This is the first study to evaluate the serologic and molecular prevalence of Coxiella burnetii in cattle at national breeding stock farms in South Korea. These government farms have well-organized biosecurity and management systems to prevent livestock diseases. Of the 736 cattle in this study, 77 tested positive for antibodies against C. burnetii antigens (10.5%, 95% CI: 8.3-12.7) and 11 were...
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