J. Anim. Sci. Vol. 88, E-Suppl. 2/J. Dairy Sci. Vol. 93, E-Suppl. 1/Poult. Sci. Vol. 89, E-Suppl. 1 T264 Effects of 72-h temporary calf removal prior to fixed-time AI on pregnancy rates and subsequent calf performance in suckled beef cows. G. H. L. Marquezini*1, V. R. G. Mercadante1, S. L. Bird2, B. J. Funnell2, and G. C. Lamb1, 1University of Florida, Marianna, 2University of Minnesota, Grand ...

Dairy calves are extremely susceptible to gastrointestinal disease during the preweaned period. The risk for enteric disease decreases as the calf ages; therefore, it is important to break the pre-weaned period up into at least 2 distinct phases that likely need to be managed differently, early life (first couple weeks of life) and the remaining time the calf is fed milk or milk replacer. When ...

Bovine abortion is an important cause of economic loss to the cattle livestock industry. In California this may as much as $700 for each cow that has aborted (Thurmond & Picanso, 1990). Kossaibati & Esslemont (1997) estimated the average cost of calf mortality in English dairy herds was £310 per calf death at 1995 prices; for culling an additional cow following illness, such as abortion, it was...

Introduction Mycoplasmas are normal inhabitants of the upper respiratory airways, urinary and genital tracts, and the digestive system; however, they can become infectious and cause high impact diseases in dairy herds including mastitis and metritis. In dairy cattle, Mycoplasma bovis is the most commonly isolated mycoplasma species (spp.). This species is very invasive and capable of colonizing...

Gardner, I.A., Hird, D.W., Utterback, W.W., Danaye-Elmi, C., Heron, B.R., Christiansen, K.H. and Sischo, W.M., 1990. Mortality, morbidity, case-fatality, and culling rates for California dairy cattle as evaluated by the National Animal Health Monitoring System, 1986-1987. Prey. Vet. Med., 8: 157-170. During 1986 and 1987, mortality, morbidity, case-fatality, and culling rates were estimated for...

Premature disposal of female calves before reaching milch herd and undesirable disposal of lactating cows are the major constraints in achieving larger herd size. During the early lactations, younger cows are supposed to give higher milk yield and undesirable disposal of early calvers, thereby, greatly hampers profitability of a dairy farm. Knowledge of the incidence of disposal along with reas...

Pasteurella multocida is a pathogenic Gram-negative bacterium that has been classified into three subspecies, five capsular serogroups and 16 serotypes. P. multocida serogroup A isolates are bovine nasopharyngeal commensals, bovine pathogens and common isolates from bovine respiratory disease (BRD), both enzootic calf pneumonia of young dairy calves and shipping fever of weaned, stressed beef c...

Objective: The study was conducted with single objective, to understand effect of foot and mouth disease (FMD) on secondary sex ratio (SSR) in dairy animals including cattle (Bos indicus, Tharparkar; Bos indicus + Bos taurus, Vrindavani) and Murra buffalo (Bubalus bubalis) maintained at Indian Veterinary Research Institute, Izatnagar. Design: Retrospective data for six years of IVRI, Izatnagar ...