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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 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 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

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

In the study presented, the hypothesis that ligands of the insulin-like growth factor (IGF) family, as well as their binding proteins (BPs), are temporally regulated and are altered by elevated progesterone (P4) and/or pregnancy was tested. Heifers detected in standing estrus following...

Author(s)
McCarthy, S. D.; Roche, J. F.; Forde, N.
Publisher
American Physiological Society, Bethesda, USA
Citation
Physiological Genomics, 2012, 44, 2, pp 130-140
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

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
Abstract

The effect of supplementary progesterone in conjunction with pig FSH on the induction of superovulation was studied in heifers synchronized with PGF at the mid-cycle stage or a progesterone-releasing intravaginal device (PRID) inserted at different phases of the cycle. The effects of site of ...

Author(s)
Goulding, D.; Williams, D. H.; Roche, J. F.; Boland, M. P.
Citation
Journal of Reproduction and Fertility, 1994, 100, 2, pp 505-510
Abstract

Data from 228 herds with low NR rates were analysed by computer. The percentage of herds in which low NR rate was attributed to the inseminator, the AI bull, the natural service bull and inaccuracy of oestrus detection was 91, 12, 25 and 6 resp. In 60% of herds, milk yield was considered to have...

Author(s)
O'Gorman, J.; Bourke, S.; Roche, J. F.
Publisher
University College Dublin, Dublin, Irish Republic
Citation
11th International Congress on Animal Reproduction and Artificial Insemination, University College Dublin, Ireland, June 26-30 1988. Volume 3. Brief communications., 1988, Paper No. 278, pp 3pp.

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