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2018
Genetic parameters for milk urea concentration and milk traits in New Zealand grazing dairy cattle, N, Lopez-villalobos, M CorreaLuna, JL Burke, NW Sneddon, MM Schultz, DJ Donaghy, and PD Kemp , New Zealand Journal of Animal Science and Production, 07/2018, Volume 78, Lincoln, p.56-61, (2018)
2017
Culling reasons in once-a-day milking cows and differences in production and type traits between retained and culled cows, JF, Rocha, N Lopez-Villalobos, and JL Burke , Proceedings of the New Zealand Society of Animal Production, 06/2017, Volume 77, Rotorua, p.200-204, (2017)
2016
Estimation of genetic parameters for milk yield traits at different herd production levels in cows milked once- or twice-daily in New Zealand, F, Lembeye, N Lopez-Villalobos, JL Burke, and SR Davis , Proceedings of the New Zealand Society of Animal Production, 07/2016, Volume 76, Adelaide, p.49-53, (2016)
Genetics of alternative definitions of feed efficiency in grazing lactating dairy cows, AM, Hurley, N Lopez-Villalobos, S McParland, E Lewis, E Kennedy, M O'Donovan, JL Burke, and DP Berry , Proceedings of the New Zealand Society of Animal Production, 07/2016, Volume 76, Adelaide, p.38-42, (2016)
2012
In vitro fermentation of [15N-] ryegrass and ruminal digesta of sheep grazing a ryegrass-based pasture in the morning or in the afternoon, RE, Vibart, MH Tavendale, JL Burke, and D Pacheco , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 72, Christchurch, p.100-105, (2012)
2011
The apparent digestibility of palm kernel expeller (PKE) consumed by pasture-fed sheep, JL, Burke, FN Dias, D Pacheco, N Lopez-Villalobos, and CW Holmes , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 71, Invercargill, p.223-228, (2011)
Ruminal fermentation characteristics from sheep offered a fresh grazing allocation of a ryegrass-based pasture either in the morning or in the afternoon, RE, Vibart, JL Burke, and D Pacheco , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 71, Invercargill, p.234-239, (2011)
2009
Urinary nitrogen excretion from cows at different stage of lactation grazing different ryegrass cultivars during spring or autumn, D, Pacheco, K Lowe, JL Burke, and GP Cosgrove , Proceedings of the New Zealand Society of Animal Production, Jun, Volume 69, Christchurch, p.196-200, (2009)
The variation in methane emissions from sheep and cattle is not explained by the chemical composition of ryegrass, KJ, Hammond, S Muetzel, GC Waghorn, CS Pinares-Patino, JL Burke, and SO Hoskin , Proceedings of the New Zealand Society of Animal Production, Jun, Volume 69, Christchurch, p.174-178, (2009)
2008
The effect of palm kernel expeller as a supplement for grazing dairy cows at the end of lactation, FN, Dias, JL Burke, D Pacheco, and CW Holmes , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 68, Brisbane, Australia, p.111-112, (2008)
2006
Clover-rich diets and production, behaviour and nutrient use by cows in late lactation, GP, Cosgrove, JL Burke, AF Death, GA Lane, K Fraser, D Pacheco, and AJ Parsons , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 66, Napier, p.42-49, (2006)
In vitro production of volatile fatty acids from forages, JL, Burke, GC Waghorn, IM Brookes, AV Chaves, and GT Attwood , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 66, Napier, p.50-54, (2006)
A simple HPLC method for measuring sulfate in ultra filtered sheep plasma, BR, Sinclair, MH Tavendale, EN Bermingham, JL Burke, WC McNabb, and NC Roy , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 66, Napier, p.284-289, (2006)
2005
Digestion kinetics of New Zealand native flax, AJ, Litherland, DL Layton, JL Burke, DC Corson, and JS Peters , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 65, Christchurch, p.367-371, (2005)
2003
Empirical assessment of the CNCPS model to predict performance of dairy cows fed pasture with silage supplements, AV, Chaves, IM Brookes, JL Burke, GC Waghorn, and SL Woodward , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 63, Queenstown, p.91-95, (2003)
2002
An evaluation of sulla (Hedysarum coronarium) with pasture, white clover and lucerne for lambs, JL, Burke, GC Waghorn, and IM Brookes , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 62, Palmerston North, p.152-156, (2002)
Improving animal performance using forage-based diets, JL, Burke, GC Waghorn, and AV Chaves , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 62, Palmerston North, p.267-272, (2002)
2001
Digestion kinetics of mature grasses, AV, Chaves, GC Waghorn, IM Brookes, and JL Burke , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 61, Christchurch, p.8-12, (2001)
2000
Formulating total mixed rations from forages - defining the digestion kinetics of contrasting species, JL, Burke, GC Waghorn, IM Brookes, GT Attwood, and ES Kolver , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 60, Hamilton, p.9-14, (2000)
Preparation of fresh forages for incubation and prediction of nutritive value, LG, Barrell, JL Burke, GC Waghorn, GT Attwood, and IM Brookes , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 60, Hamilton, p.5-8, (2000)