• Milk Composition and Production Efficiency within Feed-To-Yield Systems on Commercial Dairy Farms in Northern Ireland 

  Craig, Aimee-Louise; Gordon, Alan; Hamill, Gregory; Ferris, Conrad (MDPI, 2022-07-11)

  This study examined the relationships between milk yield and diet composition, nutrient intakes, milk composition, and feed use efficiency when concentrates were offered using a feedto- yield (FTY) approach. The study ...
• Blood and faecal biomarkers to assess dietary energy, protein and amino acid efficiency of utilization by growing and finishing pigs. 

  Camp Montoro, Jordi; Sola-Oriol, David; Muns Vila, Ramon; Gasa, Josep; Llanes, Nuria; Manzanilla, Edgar Garcia (Springer, 2022-07-04)

  Background: Diet evaluation and optimization is a slow and expensive process and it is not possible to do it at a farm level. This study aimed to use the blood serum metabolite (BSM) and faecal volatile fatty acid (VFA) ...
• Evaluating the opportunity for utilising anaerobic digestion and pyrolysis of livestock manure and grass silage to decarbonise gas infrastructure : A Northern Ireland case study. 

  Mehta, Neha; Anderson, Aine; Johnston, Christopher; Rooney, David W. (Elsevier, 2022-07-04)

  The need to mitigate climate change and improve energy security has led to an increasing interest in the utilisation of renewable gas to decarbonise natural gas use. Northern Ireland serves as an interesting case study to ...
• The impact of using novel equations to predict nitrogen excretion and associated emissions from pasture-based beef production systems. 

  Angelidis, Angelos E.; McAuliffe, Graham A.; Takahashi, Taro; Crompton, Les; Yan, Tianhai; Reynolds, Christopher K.; Stergiadis, Sokratis; Misselbrook, Tom (MDPI, 2022-06-14)

  The excretion of nitrogen (N) in faeces and urine from beef cattle contributes to atmospheric pollution through greenhouse gas and ammonia emissions and eutrophication of land and aquatic habitats through excessive N ...
• Effects of dietary crude protein concentration on animal performance and nitrogen utilisation efficiency at different stages of lactation in Holstein-Friesian dairy cows 

  Yang, C.T.; Ferris, Conrad P.; Yan, Tianhai (Elsevier, 2022-06-13)

  Nitrogen (N) excretion from livestock production systems is of significant environmental concern; however, few studies have investigated the effect of dietary CP concentration on N utilisation efficiency at different stages ...
• Integrating heterogeneous across-country data for proxy-based random forest prediction of enteric methane in dairy cattle 

  Negussie, Enyew; Gonzalez-Recio, Oscar; Battagin, Mara; Bayat, Ali-Reza; Boland, Tommy; de Haas, Yvette; Garcia-Rodriguez, Aser; Garnsworthy, Philip C.; Gengler, Nicolas; Kreuzer, Michael; Kuhla, Bjorn; Lassen, Jan; Peiren, Nico; Pszczola, Marcin; Schwarm, Angela; Soyeurt, Helene; vanlierde, Amelie; Yan, Tianhai; Biscarini, Filippo (Elsevier, 2022-03-22)

  Direct measurements of methane (CH4) from individual animals are difficult and expensive. Predictions based on proxies for CH4 are a viable alternative. Most prediction models are based on multiple linear regressions (MLR) ...
• The effects of dietary crude protein level on ammonia emissions from slurry from lactating Holstein-Friesian cows as measured in open-circuit respiration chambers. 

  Katongole, Constantine; Yan, Tianhai (MDPI, 2022-05-12)

  The effect of dietary crude protein (CP) level on ammonia (NH3) emissions from slurry from lactating Holstein-Friesian cows was studied. Twenty-four-hour total collections of faeces and urine were made from 24 lactating ...
• Performance and milk quality parameters of Jersey crossbreds in low-input dairy systems 

  Ormston, Sabrina; Davis, Hannah; Butler, Gillian; Chatzidimitriou, Eleni; Gordon, Alan Wesley; Theodoridou, Katerina; Huws, Sharon; Yan, Tianhai; Leifert, Carlo; Stergiadis, Sokratis (Nature Research, 2022-05-09)

  Previous work has demonstrated some benefit from alternative breeds in low-input dairying, although there has been no systematic analysis of the simultaneous effect of Jersey crossbreeding on productivity, health, fertility ...
• Impact of adopting non-antibiotic dry-cow therapy on the performance and udder health of dairy cows 

  Lavery, Anna; Craig, Aimee-Louise; Gordon, Alan Wesley; Ferris, Conrad P. (Wiley, 2022-05-28)

  Background On dairy farms, the prophylactic use of antibiotics at drying-off is being increasingly challenged. The objective of this study was to examine the effect of antibiotic dry-cow therapy (DCT) or non-antibiotic ...
• Quantifying land fragmentation in Northern Ireland Cattle Enterprises 

  Milne, Margaret Georgina; Byrne, Andrew William; Campbell, Emma; Graham, Jordan; McGrath, John; Kirke, Raymond; McMaster, Wilma; Zimmermann, Jesko; Adenuga, Adewale (MDPI, 2022-03-06)

  Farmland fragmentation is considered to be a defining feature of Northern Ireland’s (NI) agricultural landscape, influencing agricultural efficiency, productivity, and the spread of livestock diseases. Despite this, the ...
• Relationships between energy balance during early lactation and cow performance, blood metabolites, and fertility: A meta-analysis of individual cow data 

  Civiero, M.; Cabezas-Garcia, E.H.; Ribeiro-Filho, H.M.N.; Gordon, Alan Wesley; Ferris, Conrad P. (Elsevier, 2021-03-06)

  This study was designed to contribute to the understanding of the relationships between energy balance (EB) in early lactation [4 to 21 d in milk (DIM)] and fertility traits [interval to start of luteal activity (SLA), ...
• Quantifying MCPA load pathways at catchment scale using high temporal resolution data 

  Atcheson, Kevin; Mellander, Per-Erik; Cassidy, Rachel; Cook, Sally; Floyd, Stewart; McRoberts, Colin; Morton, Phoebe; Jordan, Phil (Elsevier, 2022-05-24)

  Detection of the agricultural acid herbicide MCPA (2-methyl-4-chlorophenoxyacetic acid) in drinking water source catchments is of growing concern, with economic and environmental implications for water utilities and wider ...
• Biotic and abiotic predictors of potential N2O emissions from denitrification in Irish grasslands soils: A national-scale field study 

  Deveautour, C.; Rojas-Pinzon, P.A.; Veloso, M.; Rambaud, J.; Duff, A.M.; Wall, D.; Carolan, Rachael; Philippot, L.; Richards, K.G.; O’Flaherty, V.; Brennan, F. (Elsevier, 2022-03-21)

  Large-scale information regarding nitrous oxide (N2O) emissions is needed as an evidence base to underpin land use policy and mitigation approaches. However, the highly variable rates of denitrification make the prediction of ...
• The Effect of Frequency of Fresh Pasture Allocation on the Feeding Behaviour of High Production Dairy Cows 

  Pollock, Jessica G.; Gordon, Alan; Huson, Kathryn; McConnell, Deborah (MDPI, 2022-01-20)

  For ruminants, grazing and ruminating activities are essential in nutrient capture and ultimately animal performance however these activities can demand significant time and energy. This study evaluated the effect of ...
• Evaluating scenarios to reduce phosphorus transport in surface waters from slurry applications in temperate grasslands 

  Adams, Russell; Doody, Donnacha; Anderson, Aine; Fenton, Owen; Tuohy, Pat; Vadas, Peter (Taylor & Francis (Informa), 2022-05-30)

  This study evaluates a range of scenarios to reduce soluble reactive phosphorus (SRP) losses using the surface runoff phosphorus transport model (Surphos) to simulate the application of liquid manure (slurry) to grassland ...
• A new direction for tackling phosphorus inefficiency in the UK food system 

  Rothwell, S.A.; Forber, K.J.; Dawson, C.J.; Salter, J.L.; Dils, R.M.; Webber, H.; Maguire, J.; Doody, Donnacha; Withers, P.J.A. (Elsevier, 2022-04-25)

  The UK food system is reliant on imported phosphorus (P) to meet food production demand, though inefficient use and poor stewardship means P is currently accumulating in agricultural soils, wasted or lost with detrimental ...
• Evaluation of three methods related to Genome-Wide Association studies for identify gene locus using simulated data 

  Beiranvand, Fatemeh; Nassiri, Mohamad Taghi Beigi; Shirali, Masoud; Shirali, Mahmoud (University of Tabriz, 2022-03-16)

  Introduction: Due to the widespread distribution of SNPs throughout the genome, these markers are widely used in livestock breeding research. These markers were used to predict the disease risk in human, to localize genetic ...
• Can metrics of acceleration provide accurate estimates of energy costs of locomotion on uneven terrain? Using domestic sheep (Ovis aries) as an example 

  Mulvenna, Christina; Marks, Nikki J.; Wilson, Rory P.; Halsey, Lewis G.; Scantlebury, David M. (BMC, 2022-03-03)

  Background: Locomotion is often a necessity for animal survival and can account for a large proportion of an individual’s energy budget. Therefore, determining the energy costs of locomotion is an important part of ...
• Interactive effects of straw management, tillage, and a cover crop on nitrous oxide emissions and nitrate leaching from a sandy loam soil 

  Taghizadeh-Toosi, Arezoo; Hansen, Elly M.; Olesen, Jørgen E.; Baral, Khagendra; Petersen, Søren O. (Elsevier, 2022-03-05)

  Minimum tillage, residue recycling and the use of cover crops are key elements of conservation agriculture that play important roles in soil carbon (C) and nitrogen (N) dynamics. This study determined the long-term effects ...
• High levels of standardized ileal digestible amino acids improve feed efficiency in slow- growing pigs at late grower- finisher stage 

  Camp Montoro, Jordi; Solà- Oriol, David; Muns, Ramon; Gasa, Josep; Llanes, Núria; Manzanilla, Edgar Garcia (Wiley, 2022-03-06)

  Slow-growing pigs negatively affect production efficiency in conventional pig farms by increasing the occupation time of the facilities and being a limiting factor for the All-In/All-Out swine production systems. This ...

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