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Abstract

Pregnancy per insemination is a major determinant of reproductive efficiency in cattle and is affected by concentrations of progesterone (P4) during early pregnancy. The relationship between pregnancy per artificial insemination (P/AI) and early luteal concentrations of P4, and repeatability of...

Author(s)
Parr, M. H.; Mullen, M. P.; Crowe, M. A.; Roche, J. F.; Lonergan, P.; Evans, A. C. O.; Diskin, M. G.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2012, 95, 5, pp 2390-2396
Abstract

Progesterone treatments are used to increase submission rates in postpartum dairy cows; however, in many cases the protocol is used as a blanket therapy for all cows without regard for physiological or disease state. The objective of this study was to identify the physiological or disease classes...

Author(s)
McNally, J. C.; Crowe, M. A.; Roche, J. F.; Beltman, M. E.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2014, 82, 9, pp 1263-1272
Abstract

The aim of this study was to determine the relationship between observed estrous-related behavior, activity clusters (AC; detected by automatic activity monitor), endocrine profiles, and ovulation time. Twenty-one cows in estrus (after 2 cloprostenol treatments, 11 d apart) and 12 nonsynchronized...

Author(s)
Aungier, S. P. M.; Roche, J. F.; Duffy, P.; Scully, S.; Crowe, M. A.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2015, 98, 3, pp 1666-1684
Abstract

Progesterone-induced blocking factor (PIBF) and galectins modulate the maternal immune response during pregnancy. We hypothesized that the relative transcript abundance of the above genes would be different during the luteal phase/early pregnancy and would be affected by progesterone...

Author(s)
Okumu, L. A.; Fair, T.; Szekeres-Bartho, J.; O'Doherty, A. M.; Crowe, M. A.; Roche, J. F.; Lonergan, P.; Forde, N.
Publisher
American Physiological Society, Bethesda, USA
Citation
Physiological Genomics, 2011, 43, 14, pp 903-910
Abstract

The aims of the present study were to investigate (1) the risk factors that influence the achievement of reproductive targets postpartum (pp) and (2) the key factors that influence pregnancy rate following first artificial insemination (AI) in dairy cows. Ninety-eight Holstein-Friesian pp cows were ...

Author(s)
Aungier, S. P. M.; Roche, J. F.; Diskin, M. G.; Crowe, M. A.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2014, 97, 6, pp 3472-3487
Abstract

The aims of this study were to (1) identify the earliest transcriptional response of the bovine endometrium to the presence of the conceptus (using RNAseq), (2) investigate if these genes are regulated by interferon tau (IFNT) in vivo, and (3) determine if they are predictive of the pregnancy...

Author(s)
Forde, N.; Duffy, G. B.; McGettigan, P. A.; Browne, J. A.; Mehta, J. P.; Kelly, A. K.; Mansouri-Attia, N.; Sandra, O.; Loftus, B. J.; Crowe, M. A.; Fair, T.; Roche, J. F.; Lonergan, P.; Evans, A. C. O.
Publisher
American Physiological Society, Bethesda, USA
Citation
Physiological Genomics, 2012, 44, 16, pp 799-810
Abstract

Higher systemic progesterone in the immediate post-conception period is associated with an increase in embryonic growth rate, interferon-tau production and pregnancy rate in cattle. The objective of this study was to examine the effect of increasing progesterone concentration on Day 3 on subsequent ...

Author(s)
Carter, F.; Forde, N.; Duffy, P.; Wade, M.; Fair, T.; Crowe, M. A.; Evans, A. C. O.; Kenny, D. A.; Roche, J. F.; Lonergan, P.
Publisher
CSIRO Publishing, Collingwood, Australia
Citation
Reproduction, Fertility and Development, 2008, 20, 3, pp 368-375

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