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Abstract

The main objective of the study reported here was to examine the association between pregnancy loss (PL) and previous exposure to clinical or subclinical mastitis before breeding or during gestation in primiparous Holstein cows. A secondary objective was to estimate the cost of clinical mastitis...

Author(s)
Dahl, M. O.; Vries, A. de; Maunsell, F. P.; Galvao, K. N.; Risco, C. A.; Hernandez, J. A.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 11, pp 10142-10150
Abstract

The objective of this study was to conduct a systematic review to identify and assess evidence and knowledge gaps in published observational studies that have investigated the relationship between mastitis and pregnancy loss (PL) in dairy cows. PubMed and ScienceDirect were used to search pertinent ...

Author(s)
Dahl, M. O.; Maunsell, F. P.; Vries, A. de; Galvao, K. N.; Risco, C. A.; Hernandez, J. A.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 10, pp 8322-8329
Abstract

The objective of this experiment was to determine whether uterine or ovarian vascular dynamics could be used to identify cows at risk for pregnancy loss. Our hypothesis was that cows that subsequently lose their pregnancy will have decreased corpus luteal (CL) perfusion, or an increased resistance...

Author(s)
Kelley, D. E.; Galvão, K. N.; Mortensen, C. J.; Risco, C. A.; Ealy, A. D.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 4, pp 3266-3271
Abstract

Author(s)
Lima, F. L.; Vieira Neto, A.; Martinez, N. M.; Risco, C. A.; Galvão, K. N.; Santos, J. E. P.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Proceedings of the 46th Annual Conference of the American Association of Bovine Practitioners, Milwaukee, Wisconsin, USA, 19-21 September 2013, 2014, pp 136
Abstract

The objective of the current study was to evaluate the effect of GnRH early postpartum on induction of ovulation, uterine health, and fertility in dairy cows. Holstein cows without a corpus luteum (CL) at 17±3 DIM were assigned randomly to receive i.m. GnRH (n=245) at 17±3 and 20±3 DIM or remain as ...

Author(s)
Bittar, J. H. J.; Pinedo, P. J.; Risco, C. A.; Santos, J. E. P.; Thatcher, W. W.; Hencken, K. E.; Croyle, S.; Gobikrushanth, M.; Barbosa, C. C.; Vieira-Neto, A.; Galvão, K. N.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2014, 97, 6, pp 3558-3569
Abstract

The objectives of this experiment were to determine the effects of oral Ca supplementation on milk yield, body condition, pregnancy per artificial insemination (P/AI), and days to pregnancy in Holstein cows considered to be of low (LRM; no calving assistance, live singleton without retained...

Author(s)
Martinez, N.; Sinedino, L. D. P.; Bisinotto, R. S.; Daetz, R.; Risco, C. A.; Galvão, K. N.; Thatcher, W. W.; Santos, J. E. P.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2016, 99, 10, pp 8417-8430
Abstract

The objective was to decrease the reinsemination interval (RI) when dairy cows and heifers are inseminated using all timed artificial insemination (TAI) programs. Holstein cows (n=211) and heifers (n=153) were randomly assigned to a control or 21-day Resynch (21dRES) at 13 days after TAI. Animals...

Author(s)
Kelley, D. E.; Ibarbia, L.; Daetz, R.; Bittar, J. H.; Risco, C. A.; Santos, J. E. P.; Ribeiro, E. S.; Galvão, K. N.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2016, 85, 2, pp 230-237
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 reproductive performance of breeding programs that used natural service (NS), AI after estrus detection (ED), and timed AI (TAI). In experiment 1, 597 suckled beef cows were randomly allocated to one of four groups. Cows in the TAI+NS group (N=150) were bred by TAI at...

Author(s)
SáFilho, M. F.; Penteado, L.; Reis, E. L.; Reis, T. A. N. P. S.; Galvão, K. N.; Baruselli, P. S.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2013, 79, 4, pp 625-632
Abstract

The objectives of the current study were to investigate the efficacy of PGF as a therapy to reduce the prevalence of subclinical endometritis and improve pregnancy per artificial insemination (P/AI) in cows subjected to a timed artificial insemination (AI) program. A total of 1,342 lactating...

Author(s)
Lima, F. S.; Bisinotto, R. S.; Ribeiro, E. S.; Greco, L. F.; Ayres, H.; Favoreto, M. G.; Carvalho, M. R.; Galvão, K. N.; Santos, J. E. P.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2013, 96, 10, pp 6480-6488

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