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Animal Science Database

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Abstract

Previous studies have shown that the use of beef bull semen significantly reduces the rate of abortions due to Neospora caninum in artificially inseminated (AI) seropositive dairy cows. In addition, certain beef breeds could be more resistant to N. caninum infection and abortion than others. The...

Author(s)
Almería, S.; López-Gatius, F.; García-Ispierto, I.; Nogareda, C.; Bech-Sàbat, G.; Serrano, B.; Santolaria, P.; Yániz, J. L.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2009, 163, 4, pp 323-329
Abstract

Future progress in genetic improvement and the monitoring of genetic resources in beef cattle requires a detailed understanding of the population under selection. This study examines the gene flow in the UK beef population with an uncommon breeding structure involving interaction between the beef...

Author(s)
Todd, D. L.; Woolliams, J. A.; Roughsedge, T.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2011, 5, 12, pp 1874-1886
Abstract

The objective of this study was to identify genetic markers and genomic regions associated with susceptibility to Mycobacterium avium ssp. paratuberculosis (MAP) infection in Holstein cattle. Associated single nucleotide polymorphisms (SNPs) were identified by genotyping 521 MAP-infected Holstein...

Author(s)
Kirkpatrick, B. W.; Shi, X.; Shook, G. E.; Collins, M. T.
Publisher
Wiley-Blackwell, Oxford, UK
Citation
Animal Genetics, 2011, 42, 2, pp 149-160
Abstract

The incidence of and risk factors associated with calving assistance and dystocia in pasture-based dairy herds were determined from analysis of 152,641 records of full-term calvings from Holstein-Friesian dams served by artificial insemination (AI) sires of seven breeds in herds of 20 calvings or...

Author(s)
Mee, J. F.; Berry, D. P.; Cromie, A. R.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Journal, 2011, 187, 2, pp 189-194
Abstract

The objective was to identify herd-level indicators expressed as a proportion of sampled animals with increased nonesterified fatty acids (NEFA) or β-hydroxybutyric acid (BHBA), or decreased calcium in wk -1 and wk +1 relative to calving that were associated with herd-level incidence of retained...

Author(s)
Chapinal, N.; LeBlanc, S. J.; Carson, M. E.; Leslie, K. E.; Godden, S.; Capel, M.; Santos, J. E. P.; Overton, M. W.; Duffield, T. F.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2012, 95, 10, pp 5676-5682
Abstract

Vaginal mucus during estrus was examined with the Metricheck device and the relationship to the reproduction of high-yielding dairy cows was studied. The study was conducted in 99 dairy herds located in Western Germany and 1348 Holstein-Friesian heifers and cows showing spontaneous estrus were...

Author(s)
Lambertz, C.; Völker, D.; Janowitz, U.; Gauly, M.
Publisher
Wiley-Blackwell, Melbourne, Australia
Citation
Animal Science Journal, 2014, 85, 9, pp 848-852
Abstract

An efficient dairy herd must produce a living, healthy calf per cow per year, and it should be accomplished with a Calving-Conception Interval (CCI) no greater than 100 days. Objective: Describe CCI epidemiological aspects in specialized dairy cattle in Costa Rica during the 2000-2013 period....

Author(s)
Roche Loaiza, A. la; Vargas Leitón, B.; Camacho Sandoval, J.; Castillo Badilla, G.; Romero Zúñiga, J. J.
Publisher
Escuela de Medicina Veterinaria, Universidad Nacional de Costa Rica, Heredia, Costa Rica
Citation
Revista Ciencias Veterinarias, 2019, 37, 1, pp 27-45
Abstract

Transrectal palpation of the reproductive tract is the most common method for pregnancy determination in cattle and is considered a veterinary skill that new veterinary medicine (DVM) graduates should perform proficiently. However, using privately owned cattle to train students can be difficult...

Author(s)
Bond, R. L.; Midla, L. T.; Gordon, E. D.; Welker, F. H. B.; Masterson, M. A.; Mathys, D. A.; Mollenkopf, D. F.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 10, pp 9236-9240

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