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Malignant catarrhal fever was diagnosed in 3 herds of American bison (Bison bison) in South Dakota from 1973 to 1976. Clinical signs included depression, nasal and ocular discharge, conjunctivitis and keratitis, and diarrhea. Herd morbidity ranged from 3 to 53.8%, and mortality was 100%. At necropsy, ulcerative lesions were found throughout the alimentary(More)
Metyrapone, a drug that inhibits cortisol production, was used to lower plasma cortisol concentration and alleviate skin lesions caused by pituitary-dependent hyper-adrenocorticism in a cat. Plasma cortisol concentration was documented by ACTH stimulation test results. During metyrapone treatment, alopecia, thin skin, and large cutaneous wounds resolved.(More)
Preface Dairy farming systems impact the environment, animal well-being, and the nutritional quality and safety of milk and dairy products in many ways. Many private companies and organizations are developing new sustainability indicators encompassing energy and chemical use in the dairy sector, as well as system impacts on net greenhouse gas and nitrogen(More)
Lactating dairy cows (n = 157) designated for slaughter under the 1986 U.S. Dairy Termination Program were utilized in two trials to determine the effects of a second insemination on fertility. Cows that had been previously inseminated at estrus were inseminated again at 12-24 d later, when not in estrus. Cows that were reinseminated into the uterine body(More)
Economic and sensitivity analysis methods were used to evaluate financial returns from use of gonadotropin-releasing hormone (GnRH) at the time of insemination to enhance fertility of dairy cows. A computer spread sheet was used to determine the best service(s) for GnRH treatment, the increase in conception rate required for economic benefit from treatment,(More)
Reovirus-like particles were demonstrated by negative stain electron microscopic examination of the feces from antelope fawns with diarrhea. Fluorescent antibody tests on frozen sections of ileum from one dead antelope fawn and immunoelectron microscopy tests on feces from two live fawns provided evidence that the antelope agent was serologically related to(More)
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