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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

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.
Abstract

200 ewes were given an intravaginal sponge containing progesterone for 12 days. After sponge withdrawal, they were immunized against androstenedione or were injected with 750 IU PMSG. They were given a controlled internal drug releaser with progesterone during days 5-10, 10-15 or 5-15 after mating...

Author(s)
Murray, B. F.; Boland, M. P.; Crosby, T. F.; 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 2. Brief communications., 1988, Paper No. 110, pp 3pp.
Abstract

Hereford crossbred beef heifers (303) at pasture were inseminated artificially at detected oestrus and slaughtered between 3 and 28 days later. Ova were recovered from 87% of 60 killed after 3 days, and 77% of 71 heifers killed after 8 days. Proportions pregnant after 14, 18 and 28 days were 75, 60 ...

Author(s)
Roche, J. F.; Boland, M. P.; McGready, T. A.
Citation
Veterinary Record, 1981, 109, 18, pp 401-404
Abstract

181 cows were inseminated after a 12-day treatment with a PRID (progesterone-releasing intravaginal device); the used coil was re-inserted into 89 of them 16 days after AI, and was left in place for 7 days. For the group given 1 PRID treatment, the number of repeat oestrous periods observed on days ...

Author(s)
Roche, J. F.
Publisher
Dublin., Irish Republic
Citation
Irish Republic, Agricultural Institute, Dublin: Animal production. Report from Dunsinea, Moorepark and Western Research Centres. Research report 1977., 1979, pp 38-39
Abstract

Trials were carried out on 1184 dairy cows which had calved at least 6 wk before treatment, and on 255 heifers, to determine the effectiveness of cloprostenol to control oestrus. In trial 1, following 2 injections of cloprostenol given 12 days apart, there was no difference in calving rate...

Author(s)
Roche, J. F.; Prendiville, D. J.
Citation
Theriogenology, 1979, 11, 2, pp 153-162
Abstract

Experiments were carried out on 3173 cattle to determine factors influencing the onset of oestrus and fertility following treatment with a progesterone-releasing intravaginal device (PRID). Injection of 5 mg oestradiol benzoate (OB), with or without 200 mg progesterone or 10 mg OB in a gelatin...

Author(s)
Mawhinney, S.; Roche, J. F.
Publisher
Martinus Nijhoff., The Hague, Netherlands
Citation
Control of reproduction in the cow. A seminar in the EEC Programme of Coordination of Research on Beef Production held at Galway, September 27-30, 1977., 1978, pp 511-530
Abstract

A postal survey was carried out to determine the influence of certain factors on calving rate of spring-calving dairy cows in the Irish Republic in 2 consecutive years. Only 44% of farmers responded to the survey in 1973 and 58% in 1974. The calving rate for 8285 inseminations was 66%. There was no ...

Author(s)
Roche, J. F.; Sherington, J.; Mitchell, J. P.; Cunningham, J. F.
Citation
Irish Journal of Agricultural Research, 1978, 17, 2, pp 149-157
Abstract

In 1973-74, a postal survey was carried out on spring-calving dairy cows in the Irish Republic. For 8285 inseminations, the overall CR was 66%. The interval from calving to 1st insemination averaged 69 days. For cows conceiving to 1st insemination, this interval was significantly longer (70 days)...

Author(s)
Sherington, J.; Roche, J. F.; Cunningham, J. F.; Mitchell, J. P.
Citation
Irish Veterinary Journal, 1978, 32, 8, pp 137-142
Abstract

In a field trial, 1169 postpartum cows were given a 12-day oestrus synchronisation treatment with progesterone-impregnated vaginal coils plus an injection of 200 mg progesterone and 5 mg oestradiol benzoate at the time of coil insertion. The females were (1) inseminated at oestrus, (2) inseminated...

Author(s)
Roche, J. F.; Prendiville, D.; Davis, W. D.
Publisher
An Foras Taluntais., Dublin, Irish Republic
Citation
Irish Republic, Agricultural Institute, Dublin: Animal production. Report from Dunsinea, Moorepark and Western Research Centre. Research report 1976., 1978, pp 34-35

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