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Abstract

The objective of this experiment was to evaluate the reproductive performance and herd exit dynamics of dairy cows managed for first service with programs varying in method of submission for insemination and voluntary waiting period (VWP) duration. Holstein cows from a commercial farm in New York...

Author(s)
Stangaferro, M. L.; Wijma, R.; Masello, M.; Giordano, J. O.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 2, pp 1673-1686
Abstract

This experiment evaluated the reproductive performance, herd exit dynamics, and lactation performance of dairy cows managed with a voluntary waiting period (VWP) of 60 or 88 d. Secondary objectives were evaluating VWP effect on cyclicity status, uterine health, systemic inflammation, and body...

Author(s)
Stangaferro, M. L.; Wijma, R.; Masello, M.; Thomas, M. J.; Giordano, J. O.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 1, pp 717-735
Abstract

The objective of this study was to determine the association of lung consolidation at weaning with later reproductive performance and survival. Ultrasonography of the lungs was performed at 60 d of life in recently weaned Holstein heifer calves from a single farm in New York State. Thoracic...

Author(s)
Teixeira, A. G. V.; McArt, J. A. A.; Bicalho, R. C.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 4, pp 2985-2991
Abstract

The objective of this study was to estimate the effects of pathogen-specific clinical mastitis (CM), occurring in different weekly intervals before or after artificial insemination (AI), on the probability of conception in Holstein cows. Clinical mastitis occurring in weekly intervals from 6 wk...

Author(s)
Hertl, J. A.; Schukken, Y. H.; Welcome, F. L.; Tauer, L. W.; Gröhn, Y. T.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2014, 97, 11, pp 6942-6954
Abstract

The objective was to evaluate the individual and combined effect of anovulation and cytological endometritis (CTE) on the reproductive performance of dairy cows. A total of 1,569 cows from 3 data sets were used. In data set 1, 403 Holstein cows from 5 dairies in New York were used. In data set 2,...

Author(s)
Vieira Neto, A.; Gilbert, R. O.; Butler, W. R.; Santos, J. E. P.; Ribeiro, E. S.; Vercouteren, M. M.; Bruno, R. G.; Bittar, J. H. J.; Galvão, K. N.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2014, 97, 9, pp 5415-5425
Abstract

The objective was to compare the reproductive efficacy of Ultrasynch, a synchronization program based on functionality of the corpus luteum as determined by ultrasonography, with an Ovsynch protocol. A randomized field trial was conducted on a commercial dairy in Cayuga County, New York, during...

Author(s)
McArt, J. A. A.; Caixeta, L. S.; Machado, V. S.; Guard, C. L.; Galvao, K. N.; SáFilho, O. G.; Bicalho, R. C.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2010, 93, 6, pp 2525-2532
Abstract

Author(s)
Moeller, L. M.; Michael, N. A.; Dalton, J. C.; Lamb, G. C.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Proceedings of the 43rd Annual Conference of the American Association of Bovine Practitioners, Albuquerque, New Mexico, USA, 19-21 August, 2010, 2010, pp 254
Abstract

Author(s)
Pereira, R. V. V.; Caixeta, L. S.; Nydam, D. V.; Guard, C. L.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Proceedings of the 43rd Annual Conference of the American Association of Bovine Practitioners, Albuquerque, New Mexico, USA, 19-21 August, 2010, 2010, pp 252
Abstract

The objective of this study was to estimate genetic correlations between conception rates (CR) and test-day (TD) milk yields in Holsteins for different days in milk (DIM) in small and large herds. The data included 217,213 first-parity service records of 94,984 cows in New York State between 1999...

Author(s)
Tsuruta, S.; Misztal, I.; Huang, C.; Lawlor, T. J.
Publisher
American Dairy Science Association, Savoy, USA
Citation
Journal of Dairy Science, 2009, 92, 6, pp 2922-2930
Abstract

Data were USDA genetic evaluations of cows and DHI herd profiles from 4154 Holstein progeny-test herds from 2 artificial insemination organizations, 21st Century Genetics (Shawano, WI) and Genex (Ithaca, NY), and from 6361 additional herds from Minnesota and New York. We grouped herds into 4...

Author(s)
Vierhout, C. N.; Cassell, B. G.; Pearson, R. E.
Citation
Journal of Dairy Science, 1999, 82, 4, pp 822-828

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