This paper reviews current knowledge of the social behavior of grazing beef cattle and discusses how that knowledge can be applied to rangeland cattle management. Cattle herds are composed of social subgroups that influence grazing distribution on rangeland. Grazing distribution is, in part, a learned response; therefore, management strategies that alter the social composition and structure of ...

The cattle market has set year-over-year record high prices since 2009. The increasing value of cattle has substantially increased the financial risk of feeding cattle, and has commensurately increased the economic losses from disease. As cattle feeding profitability continues to be challenged by the low margin between selling prices and operating costs, all facets of cattle feeding are being e...

To investigate the relationship between European starlings and bovine coccidiosis we collected samples from European starlings, cattle feed bunks, cattle water troughs, and cattle feces within concentrated animal feeding operations (CAFOs). These samples were screened for coccidia spp. to investigate (i) the prevalence of coccidia in starlings using CAFOs; (ii) if there is a relationship betwee...

Lasalocid, monensin or thiopeptin was administered intraruminally each at .33, .65 or 1.3 mg/kg body weight and evaluated for its effectiveness in preventing experimentally induced lactic acidosis in cattle. Four rumen-fistulated cattle were used for each dosage level and the design was a 4 x 4 Latin square with each animal receiving lasalocid, monensin, thiopeptin or no antibiotic. Acidosis wa...

background: neospora caninum is an apicomplexan protozoa,which causes abortion in cattle worldwide. objectives:the present study was designed to estimate the rate oftransplacental transmission of n.caninum to aborted fetuses inseropositive dams in dairy farms in mashhad area, iran.methods: two hundred blood samples of dam with abortedbovine fetuses were collected from dairy farms from 2008 to20...

to investigate the prevalence of mycobacterium paratuberculosis (m. avium subsp. paratuberculosis)infection among cattle slaughtered in ahvaz abattoir, samples were taken from 250 cattle. before slaughter,sex and age were assessed. thereafter, samples were taken from ileocecal valve, rectum mucosa, ileocecallymph node and stool. all smears which taken from these samples were stained by ziehl-ne...

disease agents that principally target the tongue are relatively rare. it seems that type of food and roughage play an important role to predispose the animals to lingual ulcers. during a period of four years different aspects of cattle lingual fossa ulcer were studied in a semi-industrial dairy farm in tehran. the affected animals showed various stages of ulcer formation in their lingual fossa...

fasciolosis is a disease caused by liver fluck of the genus of fasciola. diagnosis of fasciolosis has been challenging for a long period due to low sensitivity of the coprological diagnostic method. in this study, an in-house dot-elisa method; using excretion–secretory (es ag) and crude (cr ag) antigens of fasciola was described for diagnosis of fasciolosis in cattle. for this purpose, the sera...

background: heavy metals contaminated environment constitutes a serious problem for human and other organisms. moreover, metals such as cd, pb, and cr are toxic metals. therefore, the purpose of this study was to evaluation of cd, pb, and cr in the muscle of cow, calf, and sheep slaughtered in sanandaj city from iran. methods: this was a descriptive cross-sectional study in sanandaj city in nov...

The prevalence of Toxoplasma (T.) gondii was surveyed using a latex agglutination test (LAT) in native Korean cattle. A blood sample was collected from female 105 cattle in the Daejeon area of Korea. All cattle were asymptomatic and had not received any prophylactic treatment for T. gondii. Blood samples were collected via the caudal vein. The cattle ranged in age from 2~6 years (mean 3.7 years...