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VetMed Resource

Veterinary information to support practice, based on evidence and continuing education

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Abstract

Body condition score (BCS) is a practical tool used to monitor energy nutrition of dairy cattle. Body condition score at calving has been associated with lactational performance; however, little information is available about cows calving with low, optimum or high BCS that either maintain, gain or...

Author(s)
Cows, M. P. I. H.; Melendez, P.; Paz, J. de la; Donovan, G. A.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Proceedings of the Fortieth Annual Conference, American Association of Bovine Practitioners, Vancouver, British Columbia, Canada, 20-22 September, 2007, 2007, pp 219
AbstractFull Text

Author(s)
Pinedo, P. J.; Buergelt, C. D.; Wu, R.; Donovan, G. A.; Williams, J. E.; Melendez, P. G.; Morel, L.; Rae, D. O.
Publisher
International Association for Paratuberculosis, Tsukuba, Japan
Citation
Proceedings of the 9th International Colloquium on Paratuberculosis, Tsukuba, Japan, 29 October - 2 November 2007, 2008, pp 37
Abstract

Author(s)
DeChant, G. M.; Risco, C. A.; Donovan, G. A.; Tran, T. Q.; Horn, H. H. van; Bray, D. R.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Proceedings of the Thirty-First Annual Conference American Association of Bovine Practitioners, Spokane, Washington, USA, 24-26 September, 1998., 1998, pp 186
Abstract

Paratuberculosis is a chronic debilitating, infectious disease of ruminants, caused by Mycobacterium avium subsp. paratuberculosis, and characterized by progressive weight loss and profuse diarrhoea. The disease has been suspected to have a genetic component and estimations of heritability of 0.15...

Author(s)
Pinedo, P. J.; Buergelt, C. D.; Wu, R.; Donovan, G. A.; Williams, J. E.; Rae, D. O.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Proceedings of the Fortieth Annual Conference, American Association of Bovine Practitioners, Vancouver, British Columbia, Canada, 20-22 September, 2007, 2007, pp 227
Abstract

The objective of this study was to assess the preweaning performance, health, and survival of calves fed fresh colostrum from their dams compared to calves receiving colostrum that was not from their dams, and had been stored frozen or refrigerated. A total of 182 Holstein heifer calves born during ...

Author(s)
Sims, L. J.; Pinedo, P. J.; Donovan, G. A.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Bovine Practitioner, 2015, 49, 1, pp 13-17
Abstract

The objective of this study was to determine risk factors for udder edema (case-control study) and to evaluate the association of udder edema in primiparous Holstein cows with their lactation performance (cohort study). Values for the first 10 test day for milk yield, fat, protein, and somatic cell ...

Author(s)
Melendez, P.; Hofer, C. C.; Donovan, G. A.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2006, 76, 3/4, pp 211-221
Abstract

The objective of this study was to determine the effect of a monensin controlled-release capsule on the proportion of cows with subclinical ketosis (SK). During July to August 2001, 300 cows dried-off 50-70 days before expected parturition were randomly assigned to either a treatment (n=150, oral...

Author(s)
Melendez, P.; Goff, J. P.; Risco, C. A.; Archbald, L. F.; Littell, R.; Donovan, G. A.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2006, 73, 1, pp 33-42
Abstract

The objectives of this study were to estimate the prevalence of herd and individual bull infection with Tritrichomonas foetus in a survey of beef bulls in the state of Florida and to perform an epidemiological investigation of risk factors for the disease. Bulls were tested for T. foetus...

Author(s)
Rae, D. O.; Crews, J. E.; Greiner, E. C.; Donovan, G. A.
Publisher
Elsevier Science Inc., New York, USA
Citation
Theriogenology, 2004, 61, 4, pp 605-618
Abstract

Between January and March 2002, a total of 55 cows in a 1200-cow commercial dairy herd in south Florida died. Most of the cows that were found dead did not have any clinical signs of disease prior to death. Because of a history of a feed change, a bloom of blue green algae in cow cooling ponds, and ...

Author(s)
Donovan, G. A.; Steenholdt, C.; McGehee, K.; Lundquist, R.
Publisher
American Veterinary Medical Association, Schaumburg, USA
Citation
Journal of the American Veterinary Medical Association, 2004, 224, 1, pp 96-99
Abstract

3300 female Holstein calves born in 1991 on 2 large Florida dairy farms were monitored at birth for farm of origin, birth date, weight, height at the pelvis, and serum total protein (a measure of colostral immunoglobulin absorption). Birth season was classified as summer and winter using...

Author(s)
Donovan, G. A.; Dohoo, I. R.; Montgomery, D. M.; Bennett, F. L.
Citation
Preventive Veterinary Medicine, 1998, 33, 1/4, pp 1-10

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