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Animal Science Database

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Abstract

AIM: To evaluate the performance of a novel accelerometer-based oestrus detection system (ODS) for dairy cows on pasture, in comparison with measurement of concentrations of progesterone in milk, ultrasonographic examination of ovaries and farmer observations. METHODS: Mixed-breed lactating dairy...

Author(s)
Brassel, J.; Rohrssen, F.; Failing, K.; Wehrend, A.
Publisher
Taylor & Francis, Melbourne, Australia
Citation
New Zealand Veterinary Journal, 2018, 66, 5, pp 243-247
Abstract

The use of artificial insemination (AI) has been of enormous economic benefit for dairy farmers in many countries such as Ireland through the genetic improvement of their stock. Despite these benefits a significant proportion of dairy farmers continue to use natural mating over AI. Previous...

Author(s)
Howley, P.; Donoghue, C. O.; Heanue, K.
Publisher
Canadian Center of Science and Education, Toronto, Canada
Citation
Journal of Agricultural Science (Toronto), 2012, 4, 6, pp 171-179
Abstract

Author(s)
Randi, F.
Publisher
Veterinary Ireland, Dublin, Irish Republic
Citation
Veterinary Ireland Journal, 2017, 7, 4, pp 191-192
Abstract

Genomics is a technology for increasing the accuracy with which the genetic merit of young potential breeding animals can be determined. It enables earlier selection decisions, thus reducing generation intervals and gives rise to more rapid annual rates of genetic gain. Recently, the cost of...

Author(s)
Wickham, B. W.; Amer, P. R.; Berry, D. P.; Burke, M.; Coughlan, S.; Cromie, A.; Kearney, J. F.; McHugh, N.; McParland, S.; O'Connell, K.
Publisher
CSIRO Publishing, Collingwood, Australia
Citation
Animal Production Science, 2012, 52, 2/3, pp 172-179
Abstract

Purpose: The aims of this paper are to (1) evaluate the main factors influencing grazing system technology adoption among new entrant (NE) dairy farmers within Europe and the Irish pasture-based dairy industry, and (2) to determine the extent to which economic factors influence decision-making...

Author(s)
McDonald, R.; Heanue, K.; Pierce, K.; Horan, B.
Publisher
Routledge, Abingdon, UK
Citation
Journal of Agricultural Education and Extension, 2016, 22, 2, pp 163-177
Abstract

Author(s)
Parr, M.; Diskin, M.; Randi, F.; Lively, F.; Barrett, D.; Kenny, D.
Publisher
Irish Grassland Association, Co. Meath, Irish Republic
Citation
Irish Grassland Association Journal, 2016, 50, pp 132-145
Abstract

The objective of this study was to determine if natural mating affected secondary sex ratio. Data consisting of 642,401 calving records from the Irish national database, during the years 2002-2005, were used in the analysis. Factors affecting the logit of the probability of a male calf being born...

Author(s)
Berry, D. P.; Cromie, A. R.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2007, 67, 2, pp 346-352
Abstract

The incidence of and risk factors associated with calving assistance and dystocia in pasture-based dairy herds were determined from analysis of 152,641 records of full-term calvings from Holstein-Friesian dams served by artificial insemination (AI) sires of seven breeds in herds of 20 calvings or...

Author(s)
Mee, J. F.; Berry, D. P.; Cromie, A. R.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Journal, 2011, 187, 2, pp 189-194
Abstract

The failure of cows to successfully establish pregnancy after insemination is an important limiting factor for the efficiency of dairy production systems. The physiological reasons for this are many and pertain to the post partum and early pregnancy periods. Cows that suffer severe negative energy...

Author(s)
Evans, A. C. O.; Walsh, S. W.
Publisher
CSIRO Publishing, Collingwood, Australia
Citation
Reproduction, Fertility and Development, 2012, 24, 1, pp 233-237
AbstractFull Text

Experiences from Ireland have indicated many potential uses for insemination data in cattle breeding including; 1. Genetic evaluations for traits of economic importance, e.g., gestation length. 2. Better breeding and management advice for farmers, including sire advice facilities and fertility...

Author(s)
Cromie, A.; Kearney, F.; Evans, R.; Berry, D.; Wilhelmus, D.
Publisher
International Committee for Animal Recording (ICAR), Roma, Italy
Citation
ICAR Technical Series, 2009, No.13, pp 23-30

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