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View article: Evaluating the effect of white clover inclusion and dairy cow genetic merit on enteric methane emissions within rotational grazing systems
Evaluating the effect of white clover inclusion and dairy cow genetic merit on enteric methane emissions within rotational grazing systems Open
This study aimed to quantify and compare the enteric methane emissions from dairy cows grazing either perennial ryegrass (Lolium perenne L.; PRG) or PRG with white clover (Trifolium repens L.; clover) in a farm systems experiment. A study …
View article: Biorefined perennial ryegrass press cake as an alternative feed for dairy cows in late lactation and during the dry period: a demonstration
Biorefined perennial ryegrass press cake as an alternative feed for dairy cows in late lactation and during the dry period: a demonstration Open
To investigate the potential application of replacing a proportion of a perennial ryegrass (PRG) silage diet with press cake on productivity and enteric methane (CH 4 ) emissions in late lactation and non-lactating spring-calving dairy cow…
View article: Evaluating the impact of 3-nitrooxypropanol supplementation on enteric methane emissions in pregnant nonlactating dairy cows offered grass silage
Evaluating the impact of 3-nitrooxypropanol supplementation on enteric methane emissions in pregnant nonlactating dairy cows offered grass silage Open
Although 3-nitrooxypropanol (3-NOP; Bovaer10) has been proven to reduce enteric methane (CH4) by ∼30% in indoor systems of dairying when the additive is mixed throughout TMR and partial mixed ration (PMR) diets, there has been limited rese…
View article: A Hybrid Model that Combines Machine Learning and Mechanistic Models for Useful Grass Growth Prediction
A Hybrid Model that Combines Machine Learning and Mechanistic Models for Useful Grass Growth Prediction Open
Recently, Machine Learning (ML) has been heralded as a panacea for modelling problems across many domains, including Smart Agriculture (SmartAg), often in opposition to traditional mechanistic models arising on decades of scientific discov…
View article: Residual methane emissions in grazing lactating dairy cows
Residual methane emissions in grazing lactating dairy cows Open
Residual methane emission (RME) is a trait that has previously been identified as being independent of animal production traits. The objective of this study was to investigate the effect of ranking grazing dairy cows by RME on animal produ…
View article: Nitrate leaching on Irish grassland dairy farms: A review
Nitrate leaching on Irish grassland dairy farms: A review Open
Pasture-based dairy farming is a source of nitrate (NO3-) leaching to Irish water bodies. Nitrate leaching can lead to excess nitrogen in water bodies that causes eutrophication leading to a reduction of oxygen levels, which ultimately can…
View article: Animal factors that affect enteric methane production measured using the GreenFeed monitoring system in grazing dairy cows
Animal factors that affect enteric methane production measured using the GreenFeed monitoring system in grazing dairy cows Open
Similar to all dairy systems internationally, pasture-based dairy systems are under increasing pressure to reduce their greenhouse gas (GHG) emissions. Ireland and New Zealand are 2 countries operating predominantly pasture-based dairy pro…
View article: Factors affecting energy efficiency in herringbone and rotary milking parlours
Factors affecting energy efficiency in herringbone and rotary milking parlours Open
The United Nations Sustainable Development Goals aim to double the productivity of small-medium food producers (2015-2030), while food demand is estimated to increase by 60 % by 2050. The objectives of this paper were to identify and quant…
View article: Predicting methane emissions of individual grazing dairy cows from spectral analyses of their milk samples
Predicting methane emissions of individual grazing dairy cows from spectral analyses of their milk samples Open
Data on the enteric methane emissions of individual cows are useful not just in assisting management decisions and calculating herd inventories but also as inputs for animal genetic evaluations. Data generation for many animal characterist…
View article: Evaluating enteric methane emissions within a herd of genetically divergent grazing dairy cows
Evaluating enteric methane emissions within a herd of genetically divergent grazing dairy cows Open
Enteric methane (CH4) emissions of 3 genetic groups (GG) of dairy cows were recorded across the grazing season (early March to late October). The 3 GG were (1) high economic breeding index (EBI) Holstein-Friesian (HF) representative of the…
View article: Evaluating the effects of grass management technologies on the physical, environmental, and financial performance of Irish pasture-based dairy farms
Evaluating the effects of grass management technologies on the physical, environmental, and financial performance of Irish pasture-based dairy farms Open
Grass management technologies (grass measuring devices and grassland management decision support tools) have been identified as important tools to improve the performance of pasture-based dairy farms. They have the potential to significant…
View article: Characterising sustainability certification standards in dairy production
Characterising sustainability certification standards in dairy production Open
Despite the increasing use of private certification standards to meet the demand for sustainable dairy production, research into these standards is lacking. In this paper, we characterised sustainability certification standards currently u…
View article: Ecosystem management using livestock: embracing diversity and respecting ecological principles
Ecosystem management using livestock: embracing diversity and respecting ecological principles Open
Agricultural land is a scarce resource globally and will continue to encounter challenges to sustainably increase food production in the face of global change. Adaptations that make use of livestock should ideally incorporate agroecologica…
View article: Factors associated with intensity of technology adoption and with the adoption of 4 clusters of precision livestock farming technologies in Irish pasture-based dairy systems
Factors associated with intensity of technology adoption and with the adoption of 4 clusters of precision livestock farming technologies in Irish pasture-based dairy systems Open
Precision livestock farming (PLF) technologies have been widely promoted as important tools to improve the sustainability of dairy systems due to perceived economic, social, and environmental benefits. However, there is still limited infor…
View article: Modeling the economic impacts of mobility scores in dairy cows under Irish spring pasture-based management
Modeling the economic impacts of mobility scores in dairy cows under Irish spring pasture-based management Open
Moderate to severe forms of suboptimal mobility on dairy cows are associated with yield losses, whereas mild forms of suboptimal mobility are associated with elevated somatic cell count and an increased risk to be culled. Although the econ…
View article: Invited review: Current enteric methane mitigation options
Invited review: Current enteric methane mitigation options Open
Ruminant livestock are an important source of anthropogenic methane (CH4). Decreasing the emissions of enteric CH4 from ruminant production is strategic to limit the global temperature increase to 1.5°C by 2050. Research in the area of ent…
View article: Counterfactual Explanations for Prediction and Diagnosis in XAI
Counterfactual Explanations for Prediction and Diagnosis in XAI Open
We compared two sorts of explanations for decisions made by an AI system: counterfactual explanations about how an outcome could have been different in the past, and prefactual explanations about how it could be different in the future. We…
View article: Modelling the production, profit, and greenhouse gas emissions of Irish sheep flocks divergent in genetic merit
Modelling the production, profit, and greenhouse gas emissions of Irish sheep flocks divergent in genetic merit Open
Sheep production industries face the challenge of increasing farm production and profit while reducing environmental impacts. Genetic selection using multi-trait breeding indices can be used to improve flock productivity, profitability, an…
View article: Modelling the effects of stocking rate, soil type, agroclimate location and nitrogen input on the grass DM yield and forage self-sufficiency of Irish grass-based dairy production systems
Modelling the effects of stocking rate, soil type, agroclimate location and nitrogen input on the grass DM yield and forage self-sufficiency of Irish grass-based dairy production systems Open
In pasture-based dairy production systems, identifying the appropriate stocking rate (SR; cows/ha) based on the farm grass growth is a key strategic decision for driving the overall farm business. This paper investigates a number of scenar…
View article: Life cycle assessment of pasture-based dairy production systems: Current and future performance
Life cycle assessment of pasture-based dairy production systems: Current and future performance Open
To overcome the environmental challenges faced by the global agricultural sector while also ensuring economic viability, dairy farmers must improve the efficiency of their systems. To improve system efficiency, the performance of an averag…
View article: Predicting livestock behaviour using accelerometers: A systematic review of processing techniques for ruminant behaviour prediction from raw accelerometer data
Predicting livestock behaviour using accelerometers: A systematic review of processing techniques for ruminant behaviour prediction from raw accelerometer data Open
International audience
View article: Economic impact of different strategies to use sex-sorted sperm for reproductive management in seasonal-calving, pasture-based dairy herds
Economic impact of different strategies to use sex-sorted sperm for reproductive management in seasonal-calving, pasture-based dairy herds Open
To maximize efficiency, profitability, and societal acceptance of modern dairy production, it is important to minimize the production of male dairy calves with poor beef merit. One solution involves using sex-sorted sperm (SS) to generate …
View article: Incorporation of the grazing utilization subindex and new updates to the Pasture Profit Index
Incorporation of the grazing utilization subindex and new updates to the Pasture Profit Index Open
Grazing efficiency has been shown to differ between perennial ryegrass varieties. Such differences affect the utilization of grass within grazing systems, influencing the profitability of grass-based ruminant production systems. The Pastur…
View article: The net contribution of livestock to the supply of human edible protein: the case of Ireland
The net contribution of livestock to the supply of human edible protein: the case of Ireland Open
If current food consumption patterns continue, the agriculture sector must provide significantly more food in the coming years from the available land area. Some livestock systems engage in feed–food competition as arable land is used for …
View article: Greenhouse gas emissions and nitrogen efficiency of dairy cows of divergent economic breeding index under seasonal pasture-based management
Greenhouse gas emissions and nitrogen efficiency of dairy cows of divergent economic breeding index under seasonal pasture-based management Open
Greenhouse gas (GHG) emissions and nitrogen (N) efficiencies were modeled for 2 genetic groups (GG) of Holstein-Friesian cows across 3 contrasting feeding treatments (FT). The 2 GG were (1) high economic breeding index (EBI) animals repres…