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- Agriculture (1)
- Automatic milking (1)
- Behavioural sciences biology (1)
- Concentrate supplementation (1)
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- Cow traffic (1)
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- Feed efficiency (1)
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- Grass utilisation (1)
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Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
The Effect Of Concentrate Supplementation On Milk Production And Cow Traffic In Early And Late Lactation In A Pasture-Based Automatic Milking System, John Shortall, Cathriona Foley, Roy D. Sleator, Bernadette O'Brien
The Effect Of Concentrate Supplementation On Milk Production And Cow Traffic In Early And Late Lactation In A Pasture-Based Automatic Milking System, John Shortall, Cathriona Foley, Roy D. Sleator, Bernadette O'Brien
Department of Biological Sciences Publications
The objective of this experiment was to establish the effect of low-concentrate (LC) and high-concentrate (HC) supplementation in the early and late periods of lactation on milk production and cow traffic in a pasture-based automatic milking (AM) system. In total, 40 cows (10 primiparous and 30 multiparous) were randomly assigned to one of the two treatments. The experimental periods for the early and late lactation trials extended from 23 February to 12 April 2015 and 31 August to 18 October 2015, respectively (49 days in each trial period). The early lactation supplement levels were 2.3 and 4.4 kg/cow per day …
Development Of A Grass Measurement Optimisation Tool To Efficiently Measure Herbage Mass On Grazed Pastures, D. J. Murphy, B. O'Brien, Michael D. Murphy
Development Of A Grass Measurement Optimisation Tool To Efficiently Measure Herbage Mass On Grazed Pastures, D. J. Murphy, B. O'Brien, Michael D. Murphy
Publications
Accurate and efficient estimation of herbage mass is essential for optimising grass utilisation and increasing profit for pasture farming. There is no definitive sampling protocol for grass measurement on Irish pastures. This paper presents the Grass Measurement Optimisation Tool (GMOT), designed to generate measurement protocols that optimise for time and accuracy. The GMOT was designed in the form of a decision support tool that generates interactive paddock maps that guide the farmer on how to optimally measure their pastures in a random stratified manner based on GPS co-ordinates, resulting in accurate non-biased estimations of mean herbage mass. Rising plate meter …
Photovoltaic Systems On Dairy Farms: Financial And Renewable Multi-Objective Optimization (Farmoo) Analysis, Michael Breen, J. Upton, Michael D. Murphy
Photovoltaic Systems On Dairy Farms: Financial And Renewable Multi-Objective Optimization (Farmoo) Analysis, Michael Breen, J. Upton, Michael D. Murphy
Publications
No abstract provided.
Large Variability In Feeding Behavior Among Crossbred Growing Cattle, David N. Kelly, Roy D. Sleator, Craig P. Murphy, Stephen B. Conroy, Michelle M. Judge, Donagh P. Berry
Large Variability In Feeding Behavior Among Crossbred Growing Cattle, David N. Kelly, Roy D. Sleator, Craig P. Murphy, Stephen B. Conroy, Michelle M. Judge, Donagh P. Berry
Department of Biological Sciences Publications
The purpose of this study was to define an extensive suite of feeding behavior traits in growing crossbred cattle and to investigate their phenotypic inter-relationships as well as relationships with other performance and efficiency traits. Time-series feeding behavior data, as well as feed intake and liveweight records, were available for 624 growing crossbred cattle, of which 445 were steers and 179 were heifers. Feeding behavior repeatability estimates were calculated using linear mixed models. Additionally, partial Spearman correlations were estimated among 14 feeding behavior traits, as well as between feeding behavior with both performance and feed efficiency traits, using residuals retained …