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Animal Science Database

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Abstract

The objectives were to determine the effects of supplementing docosahexaenoic acid (DHA)-rich algae on reproduction of dairy cows. Holstein cows were assigned randomly to either a control (n=373) or the same diet supplemented daily with 100 g/cow of an algae product containing 10% DHA (algae, ...

Author(s)
Sinedino, L. D. P.; Honda, P. M.; Souza, L. R. L.; Lock, A. L.; Boland, M. P.; Staples, C. R.; Thatcher, W. W.; Santos, J. E. P.
Publisher
BioScientifica Ltd, Bristol, UK
Citation
Reproduction, 2017, 153, 5, pp 707-723
Abstract

Artificial insemination (AI) in sheep is currently limited by the poor fertility obtained following non-surgical intracervical insemination of frozen-thawed semen. An exception to this general finding is the non-return rate of around 58% reported for large scale on-farm AI in Norway. The objective...

Author(s)
Donovan, A.; Hanrahan, J. P.; Kummen, E.; Duffy, P.; Boland, M. P.
Publisher
Elsevier Science B.V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2004, 84, 3/4, pp 359-368
Abstract

No laboratory test exists that can reliably predict differences among rams in field fertility after artificial insemination (AI) with frozen-thawed semen. In vitro fertilisation (IVF) has been proposed as a method of predicting these differences. The objectives of this study were to evaluate...

Author(s)
O'Meara, C. M.; Hanrahan, J. P.; Donovan, A.; Fair, S.; Rizos, D.; Wade, M.; Boland, M. P.; Evans, A. C. O.; Lonergan, P.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2005, 64, 8, pp 1797-1808
Abstract

The objectives were to determine the effects of elevated blood urea concentrations on: (i) the response to superovulation, fertilisation rate, and early embryonic development in beef heifers, and (ii) embryo survival from days 7 to 35 of gestation. In Experiment 1, heifers (18-24 months) were...

Author(s)
Gath, V. P.; Crowe, M. A.; O'Callaghan, D.; Boland, M. P.; Duffy, P.; Lonergan, P.; Mulligan, F. J.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Animal Reproduction Science, 2012, 133, 3/4, pp 139-145
Abstract

Ewe breed has been shown to have a major effect on pregnancy rates following cervical AI using frozen-thawed semen. The main objective of this study was to examine the differences between purebred Belclare and Suffolk ewes (multiparous) in fertilization rate, number of accessory sperm and stage of...

Author(s)
Fair, S.; Hanrahan, J. P.; O'Meara, C. M.; Duffy, P.; Rizos, D.; Wade, M.; Donovan, A.; Boland, M. P.; Lonergan, P.; Evans, A. C. O.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2005, 63, 7, pp 1995-2005
Abstract

Using reverse transcriptase-amplified restriction fragment length polymorphism (RT-AFLP) analysis of differential mRNA expression and semiquantitative reverse transcriptase-polymerase chain reaction (RT-PCR), we compared mRNA expression in bovine blastocysts from 4 sources known to differ in...

Author(s)
Rizos, D.; Lonergan, P.; Boland, M. P.; Arroyo-García, R.; Pintado, B.; Fuente, J. de la; Gutiérrez-Adán, A.
Publisher
Society for the Study of Reproduction, Madison, USA
Citation
Biology of Reproduction, 2002, 66, 3, pp 589-595
Abstract

This study was conducted to examine the effect of bovine oocyte maturation, fertilization or culture in vivo or in vitro on the proportion of oocytes reaching the blastocyst stage, and on blastocyst quality as measured by survival following vitrification. In Experiment 1, four groups of oocytes...

Author(s)
Rizos, D.; Ward, F.; Duffy, P.; Boland, M. P.; Lonergan, P.
Publisher
John Wiley and Sons, New York, USA
Citation
Molecular Reproduction and Development, 2002, 61, 2, pp 234-248
Abstract

High intakes of dietary protein, particularly rumen degradable protein (RDP), lead to elevations in systemic concentrations of ammonia and (or) urea and these may be increased further if associated with inadequate fermentable energy intake. High systemic concentrations of ammonia and urea have been ...

Author(s)
Kenny, D. A.; Boland, M. P.; Diskin, M. G.; Sreenan, J. M.
Publisher
British Society of Animal Science, Penicuik, UK
Citation
Animal Science, 2002, 74, 3, pp 529-537
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

In the 1st of 3 experiments, 973 ewes were treated with progestogen sponges impregnated with 30 or 40 mg FGA or 60 mg MAP for 12 days. Following sponge removal, ewes were injected with 500 IU PMSG and AI was carried out 52-56 h later. In the 2nd experiment, 808 ewes were treated as in experiment 1...

Author(s)
McKonnen, G.; Crosby, T. F.; Boland, M. P.; Murray, B. F.; Gordon, I.
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. 274, pp 3pp.

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