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Roger Hegarty

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Publication DateTitleAuthor(s)Date Added
1Jul-2023The effects of antibiotic-free supplementation on the ruminal pH variability and methane emissions of beef cattle under the challenge of subacute ruminal acidosis (SARA)Simanungkalit, Gamaliel; Bhuiyan, Momenuzzaman; Bell, Robert; Sweeting, Ashley; Morton, Christine L ; Cowley, Frances ; Hegarty, Roger 21-Jun-2024
22023Effect of 3-nitrooxypropanol on enteric methane emissions of feedlot cattle fed with a tempered barley-based diet with canola oilde Almeida, Amelia Katiane ; Cowley, Frances ; McMeniman, Joe P; Karagiannis, Alex; Walker, Nicola; Tamassia, Luis F M; McGrath, Joseph J; Hegarty, Roger S 15-Jul-2024
32023A regional-scale assessment of nutritional-system strategies for abatement of enteric methane from grazing livestockde Almeida, A K ; Cowley, F C ; Hegarty, R S 15-Jul-2024
430-Sep-2022The role of leucaena in cattle fattening and breeding production systems in Eastern IndonesiaIrawan, Fahrul; Dahlanuddin ; Halliday, Michael J ; Hegarty, Roger S ; Cowley, Frances C 19-Jun-2024
512-Sep-2022Associations of digestibility with phenotypic and genetic variation in methane production in Angus cattleSmith, H C; Herd, R M ; Donoghue, K A; Bird-Gardiner, T; Arthur, P F; Hegarty, R S 12-Jun-2024
6Jul-2022Effects of dietary energy density and supplemental rumen undegradable protein on intake, viscera, and carcass composition of lambs recovering from nutritional restrictionDougherty, Holland C ; Evered, Mark ; Oltjen, James W; Hegarty, Roger S ; Neutze, Stephen A; Oddy, V Hutton 20-Jun-2024
7Feb-2022Validation of automatic systems for monitoring the licking behaviour in Angus and Brahman cattleSimanungkalit, Gamaliel ; Clay, Jonathon ; Barwick, Jamie ; Cowley, Frances ; Dawson, Bradley ; Dobos, Robin ; Hegarty, Roger 16-Aug-2022
8Dec-2021Meta-analysis quantifying the potential of dietary additives and rumen modifiers for methane mitigation in ruminant production systemsAlmeida, Amelia K ; Hegarty, Roger S ; Cowie, Annette 20-Apr-2022
9Nov-2021Use of an ear-tag accelerometer and a radio-frequency identification (RFID) system for monitoring the licking behaviour in grazing cattleSimanungkalit, Gamaliel ; Barwick, Jamie ; Cowley, Frances ; Dawson, Bradley ; Dobos, Robin ; Hegarty, Roger 13-Jul-2022
10Jul-2021Nitrate and nitrite absorption, recycling and retention in tissues of sheepVillar, M L ; Godwin, I R ; Hegarty, R S ; Erler, D V; Farid, H T; Nolan, J V 25-Feb-2022
11Jun-2021Automatic Supplement Weighing Units for Monitoring the Time of Accessing Mineral Block Supplements by Rangeland Cattle in Northern Queensland, AustraliaSimanungkalit, Gamaliel ; Bremner, Graeme ; Cowley, Frances ; Barwick, Jamie ; Dawson, Bradley ; Dobos, Robin ; Hegarty, Roger 9-Jul-2021
1212-May-2021Beef cattle methane emissions measured with tracer-ratio and inverse dispersion modelling techniquesBai, Mei; Velazco, José I; Coates, Trevor W; Phillips, Frances A; Flesch, Thomas K; Hill, Julian; Mayer, David G; Tomkins, Nigel W; Hegarty, Roger S ; Chen, Deli 6-Apr-2022
1317-Apr-2021A Pilot Study Using Accelerometers to Characterise the Licking Behaviour of Penned Cattle at a Mineral Block SupplementSimanungkalit, Gamaliel ; Barwick, Jamie ; Cowley, Frances ; Dobos, Robin ; Hegarty, Roger 9-Jul-2021
142021Predicting metabolisable energy intake by free-ranging cattle using multiple short-term breath samples and applied to a pasture case-studyHerd, R M ; Arthur, P F; Hegarty, R S ; Bird-gardiner, T ; Donoghue, K A; Velazco, J I29-May-2024
15Sep-2020Dietary nitrate and presence of protozoa increase nitrate and nitrite reduction in the rumen of sheepVillar, Maria Laura ; Hegarty, Roger Stephen ; Clay, Jonathon William ; Smith, Katherine Anne ; Godwin, Ian Robert ; Nolan, John Vivian 5-Aug-2020
1610-Aug-2020Genetic variance and covariance components for carbon dioxide production and postweaning traits in Angus cattleDonoghue, Kath A; Bird-gardiner, Tracie L ; Herd, Robert ; Hegarty, Roger ; Arthur, Paul F30-May-2024
17Aug-2020Evaluation of remote monitoring units for estimating body weight and supplement intake of grazing cattleSimanungkalit, G ; Hegarty, R S ; Cowley, F C ; McPhee, M J 7-Oct-2020
182020Dietary nitrate metabolism and enteric methane mitigation in sheep consuming a protein-deficient dietVillar, L; Hegarty, Roger ; Van Tol, M; Godwin, I ; Nolan, J 5-Aug-2022
19Nov-2019The effects of dietary nitrate on plasma glucose and insulin sensitivity in sheepVillar, Maria L ; Godwin, Ian R ; Hegarty, Roger S ; Dobos, Robin C ; Smith, Katherine A ; Clay, Jonathon W ; Nolan, John V 20-Aug-2019
20May-2019Genetic variation in residual feed intake is associated with body composition, behavior, rumen, heat production, hematology, and immune competence traits in Angus cattleHerd, Robert M ; Velazco, Jose I; Smith, Helen; Arthu, Paul F; Hine, Brad; Oddy, Hutton ; Dobos, Robin C ; Hegarty, Roger S 4-Jun-2024
21Mar-2019Beef production simulation of nitrate and lipid supplements for pasture and rangeland fed enterprisesMcPhee, Malcolm J ; Evered, Mark ; Andrews, Todd; Pacheco, David; Dougherty, Holland C ; Ingham, Aaron B; Harden, Steven; Crean, Jason; Roche, Leslie; Eastburn, Danny J; Oltjen, James W; Oddy, V Hutton ; Kebreab, Ermias; Nolan, John V ; Hegarty, Roger S 17-Aug-2020
222019Nitrate is safe to feed ad libitum in molasses roller drums as a source of non-protein nitrogenGoopy, J P; Hegarty, R S 27-Apr-2022
23Apr-2018Methane emissions and productivity of defaunated and refaunated sheep while grazingNguyen, Son Hong ; Nguyen, Huyen Duong Thi; Bremner, Graeme ; Hegarty, Roger Stephen 5-Jun-2024
242018Review: Biological determinants of between-animal variation in feed efficiency of growing beef cattleCantalapiedra-Hijar, G; Abo-Ismail, M; Carstens, G E; Guan, L L; Hegarty, R ; Kenny, D A; McGee, M; Plastow, G; Relling, A; Ortigues-Marty, I28-Apr-2022
252018Effect of measurement duration in respiration chambers on methane traits of beef cattleArthur, P F; Donoghue, K A; Bird-Gardiner, T; Herd, Robert M ; Hegarty, Roger 23-May-2018
26Nov-2017The AusBeef model for beef production: I. Description and evaluationDougherty, H C ; Kebreab, E; Evered, M ; Little, B A; Ingham, A B; Hegarty, R S ; Pacheco, D; McPhee, M J 17-Aug-2020
27Nov-2017The AusBeef model for beef production: II. sensitivity analysisDougherty, H C ; Kebreab, E; Evered, M ; Little, B A; Ingham, A B; Nolan, J V ; Hegarty, R S ; Pacheco, D; McPhee, M J 17-Aug-2020
28Oct-2017Effects of defaunation and dietary coconut oil distillate on fermentation, digesta kinetics and methane production of Brahman heifersNguyen, S H; Hegarty, R S 29-Apr-2022
29Oct-2017The effect of cysteamine hydrochloride and nitrate supplementation on in-vitro and in-vivo methane production and productivity of cattleSun, Y K; Yan, X G; Ban, Z B; Yang, H M; Hegarty, R S ; Zhao, Y M27-Apr-2022
30Feb-2017Optimizing test procedures for estimating daily methane and carbon dioxide emissions in cattle using short-term breath measuresArthur, P F; Barchia, I M; Weber, C; Bird-gardiner, T ; Donoghue, K A; Herd, R M ; Hegarty, R S 5-Apr-2024
312017Daily methane emissions and emission intensity of grazing beef cattle genetically divergent for residual feed intakeVelazco, J I; Herd, Robert M ; Cottle, David ; Hegarty, Roger 18-May-2017
322017Paraffin-wax-coated nitrate salt inhibits short-term methane production in sheep and reduces the risk of nitrite toxicityde Raphelis-Soissan, Victoire ; Nolan, John V ; Godwin, Ian ; Newbold, John R; Perdok, Hink B; Hegarty, Roger 15-Jun-2018
332017Production of N2 and N2O from nitrate ingested by sheepde Raphelis-Soissan, V; Nolan, John V ; Godwin, Ian R ; Newbold, J R; Eyre, B D; Erler, D V; Hegarty, Roger 15-Jun-2018
34Nov-2016Methane emissions, ruminal characteristics and nitrogen utilisation changes after refaunation of protozoa-free sheepNguyen, Son Hung; Bremner, Graeme ; Cameron, Margaret ; Hegarty, Roger Stephen 16-Aug-2024
352016Feed intake, growth, and body and carcass attributes of feedlot steers supplemented with two levels of calcium nitrate or ureaHegarty, Roger ; Miller, J; Oelbrandt, N; Hegarty, Jennifer ; Luijben, J P M; Robinson, Dorothy L ; Nolan, John V ; Perdok, H B19-Jun-2017
362016Can adaptation to nitrate supplementation and provision of fermentable energy reduce nitrite accumulation in rumen contents in vitro?de Raphelis-Soissan, Victoire ; Nolan, John V ; Newbold, J R; Godwin, Ian ; Hegarty, Roger 17-Aug-2017
372016Estimates of repeatability and heritability of methane production in sheep using portable accumulation chambersGoopy, John P ; Robinson, Dorothy L ; Woodgate, Reg; Donaldson, A; Oddy, Hutton ; Vercoe, P E; Hegarty, Roger 4-Apr-2016
382016Use of short-term breath measures to estimate daily methane production by cattleVelazco, J I; Mayer, D G; Zimmerman, S; Hegarty, Roger 6-Nov-2017
392016Using portable X-ray fluorescence (pXRF) to determine fecal concentrations of non-absorbable digesta kinetic and digestibility markers in sheep and cattleBarnett, Mark ; Forster, Nicola; Ray, G A; Li, L; Guppy, Christopher ; Hegarty, Roger 24-Nov-2016
402016A universal equation to predict methane production of forage-fed cattle in AustraliaCharmley, E; Williams, S R O; Moate, P J; Hegarty, Roger ; Herd, Robert M ; Oddy, Hutton ; Reyenga, P; Staunton, K M; Anderson, A; Hannah, M C13-Jan-2017
412016Repeatability of methane emission measurements in Australian beef cattleDonoghue, K A; Bird-Gardiner, T L ; Arthur, P F; Herd, Robert M ; Hegarty, Roger 22-Feb-2017
422016Proxies to adjust methane production rate of beef cattle when the quantity of feed consumed is unknownHerd, Robert M ; Velazco, J I; Arthur, P F; Hegarty, Roger 22-Feb-2017
432016Genetic and phenotypic variance and covariance components for methane emission and postweaning traits in Angus cattleDonoghue, K A; Bird-Gardiner, T L ; Arthur, P F; Herd, Robert M ; Hegarty, Roger 22-Feb-2017
442016Effects of Rumen Protozoa of Brahman Heifers and Nitrate on Fermentation and In vitro Methane ProductionNguyen, S H; Li, Lily ; Hegarty, Roger 15-Mar-2017
452016Associations among methane emission traits measured in the feedlot and in respiration chambers in Angus cattle bred to vary in feed efficiencyHerd, Robert M ; Velazco, J I; Arthur, P F; Hegarty, Roger 15-Mar-2017
46Aug-2015Positive consequences of maternal diet and post-natal rumen inoculation on rumen function and animal performance of Merino lambsDe Barbieri, I; Hegarty, R S ; Silveira, C; Oddy, V H 11-Jun-2024
47Aug-2015Production attributes of Merino sheep genetically divergent for wool growth are reflected in differing rumen microbiotasDe Barbieri, I; Gulino, L; Hegarty, R S ; Oddy, V H ; Maguire, A; Li, L ; Klieve, A V; Ouwerkerk, D11-Jun-2024
48Mar-2015Association of wool growth with gut metabolism and anatomy in sheepDe Barbieri, I ; Hegarty, R S ; Li, Li ; Oddy, V H 3-Apr-2024
492015Programming rumen bacterial communities in newborn Merino lambsBarbieri, I De; Hegarty, R S ; Silveira, C; Gulino, L M; Oddy, V H ; Gilbert, R A; Klieve, A V; Ouwerkerk, D11-Jun-2024
502015Animal board invited review: genetic possibilities to reduce enteric methane emissions from ruminantsPickering, N K; Oddy, V H ; Basarab, J; Cammack, K; Hayes, B; Hegarty, R S ; Lassen, J; McEwan, J C; Miller, S; Pinares-Patino, C S; de Haas, Y11-Apr-2024

Profile

Credit Name
Roger Hegarty
Full Name
Hegarty, Roger
Variants
Hegarty, Roger S
Hegarty, Roger Stephen
Hegarty, R S
 
UNE Researcher ID
une-id:rhegart3
 
Position Title
Professor in Animal Nutrition
 
Email
 
Google Scholar profile key
nlHNrFcAAAAJ
Scopus Author ID
Web of Science profile key
8717888
Discipline
School of E&RS - Animal Science
 
Faculty
Faculty of Science, Ag, Business and Law
Surname
Hegarty
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Given Name
Roger
 
Preferred Given Name
Roger
School/Department
School of Environmental and Rural Science
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