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2021
Impact of winter near-maintenance or non-restricted feeding on growth and intramuscular fat content of yearling rams, Johnson, PL, K Knowler, KM Mcrae, WE Bain, G Pile, CR Craigie, and SJ Rowe , New Zealand Journal of Animal Science and Production, 01/2022, Volume 81, Online, p.141-145, (2021)
Investigating the potential for global positioning satellite data to provide information on ewe behaviour around the time of lambing, Johnson, PL, A Welsh, K Knowler, and P Pletnykov , New Zealand Journal of Animal Science and Production, 01/2022, Volume 81, Online, p.29-34, (2021)
INVITED REVIEW: A review of the current sheep industry in New Zealand and opportunities for change to meet future challenges, Johnson, PL, S-AN Newman, KM Mcrae, T van der Weerde, M Brown, and DR Scobie , New Zealand Journal of Animal Science and Production, 01/2022, Volume 81, Online, p.1-15, (2021)
Preliminary investigations into genetic variation in distance travelled by young sheep, Johnson, PL, N Cullen, SM Hickey, K Knowler, B Bryson, M Hall, and P Pletnykov , New Zealand Journal of Animal Science and Production, 01/2022, Volume 81, Online, p.63-67, (2021)
Sheep divergently selected for methane yield showed differences in meat fatty acid composition, Johnson, PL, M Agnew, A Jonker, SM Hickey, JC McEwan, B Bryson, KG Dodds, and SJ Rowe , New Zealand Journal of Animal Science and Production, 01/2022, Volume 81, Online, p.173-178, (2021)
2020
An association between circulating copper concentrations and gammaglutamyl transferase activity in sheep after exposure to the toxin sporidesmin, Johnson, PL, and NC Amyes , New Zealand Journal of Animal Science and Production, 09/2020, Volume 80, Online, p.34-38, (2020)
Predicting internal adipose from selected computed tomography images in sheep, Johnson, PL, JL Juengel, and WE Bain , New Zealand Journal of Animal Science and Production, 09/2020, Volume 80, Online, p.113-116, (2020)
2019
BRIEF COMMUNICATION: Carcass characteristics and meat quality of early, mid- and late-season commercial lambs, Y, Ye, NM Schreurs, Johnson PL, RA Corner-Thomas, MP Agnew, P Silcock, GT Eyres, G Maclennan, and CE Realini , New Zealand Journal of Animal Science and Production, 07/2019, Volume 79, Palmerston North, p.80-83, (2019)
2017
BRIEF COMMUNICATION: High ultimate pH in short-scrotum male lambs processed during the breeding season, Johnson, PL, AD Stuart, and A Mackie , Proceedings of the New Zealand Society of Animal Production, 06/2017, Volume 77, Rotorua, p.194-196, (2017)
BRIEF COMMUNICATION: Hot years in history and facial eczema, Johnson, PL, CA Cameron, HV Henderson, and NG Cullen , Proceedings of the New Zealand Society of Animal Production, 06/2017, Volume 77, Rotorua, p.107-109, (2017)
BRIEF COMMUNICATION: Reduced reproductive outcomes in ewes susceptible to facial eczema, Johnson, PL, HV Henderson, R Proffit, and NG Cullen , Proceedings of the New Zealand Society of Animal Production, 06/2017, Volume 77, Rotorua, p.197-199, (2017)
BRIEF COMMUNICATION: Relationship between measures of residual energy intake made on growing animals and adults, Johnson, PL, J Wing, and K Knowler , Proceedings of the New Zealand Society of Animal Production, 06/2017, Volume 77, Rotorua, p.85-87, (2017)
Intramuscular fat content of New Zealand lamb M. longissimus lumborum, CR, Craigie, MP Agnew, AD Stuart, PR Shorten, MM Reis, KR Taukiri, and Johnson PL , Proceedings of the New Zealand Society of Animal Production, 06/2017, Volume 77, Rotorua, p.189-193, (2017)
2016
BRIEF COMMUNICATION: An update on genetic parameters for facial eczema tolerance in sheep, KM, Mcrae, NG Cullen, NC Amyes, and Johnson PL , Proceedings of the New Zealand Society of Animal Production, 07/2016, Volume 76, Adelaide, p.43-45, (2016)
Preliminary investigations into the trait of residual energy intake in sheep, Johnson, PL, SP Miller, and K Knowler , Proceedings of the New Zealand Society of Animal Production, 07/2016, Volume 76, Adelaide, p.34-37, (2016)
Variation in total body adipose and adipose partitioning in maternal sheep estimated using computed tomography scanning, Johnson, PL, WE Bain, P Johnstone, M Bixley, and K Knowler , Proceedings of the New Zealand Society of Animal Production, 07/2016, Volume 76, Adelaide, p.122-125, (2016)
2015
BRIEF COMMUNICATION: Genetic parameters for meat traits assessed in the Headwaters New Zealand Progeny Test, Johnson, PL, A Charteris, ML Tate, and KG Dodds , Proceedings of the New Zealand Society of Animal Production, 07/2015, Volume 75, Dunedin, p.111-113, (2015)
BRIEF COMMUNICATION: Intake of ewe lambs is influenced by the dry matter percentage of the feed consumed, Johnson, PL, SP Miller, K Knowler, B Bryson, and KG Dodds , Proceedings of the New Zealand Society of Animal Production, 07/2015, Volume 75, Dunedin, (2015)
BRIEF COMMUNICATION: Modelling liveweight change to inform residual feed intake models in growing lambs, Johnson, PL, SP Miller, K Knowler, B Bryson, and KG Dodds , Proceedings of the New Zealand Society of Animal Production, 07/2015, Volume 75, Dunedin, p.225-227, (2015)
BRIEF COMMUNICATION: Onset of breeding season in Dorset Horn ewes, Johnson, PL , Proceedings of the New Zealand Society of Animal Production, 07/2015, Volume 75, Dunedin, (2015)
Genetic parameters for meat yield and quality traits derived from the New Zealand Perendale progeny test, Johnson, PL, EA Young, D Russenklau, T Anderson, and KG Dodds , Proceedings of the New Zealand Society of Animal Production, 07/2015, Volume 75, Dunedin, p.106-110, (2015)
2012
Development of a visual scoring system for ovine pneumonia at the processing plant, HJ, Baird, SM Clarke, and Johnson PL , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 72, Christchurch, p.169-171, (2012)
Estimates of genetic parameters for flystrike in New Zealand Romney and Romney cross sheep, NK, Pickering, KG Dodds, HT Blair, RE Hickson, Johnson PL, and JC McEwan , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 72, Christchurch, p.189-191, (2012)
2010
Carcass linear measurements as predictors of meat yield in lambs determined by VIAscan, WE, Bain, JC McEwan, NJ McLean, and Johnson PL , Proceedings of the New Zealand Society of Animal Production, Jun, Volume 70, Palmerston North, p.130-132, (2010)
Determining taste panel traits which contribute to the overall liking of New Zealand lamb as assessed by a British sensory panel, NJ, McLean, Johnson PL, and A Charteris , Proceedings of the New Zealand Society of Animal Production, Jun, Volume 70, Palmerston North, p.127-129, (2010)
2009
Effect of sex on colour and pH of chilled lamb loins : Brief Communication, WE, Bain, NJ McLean, EA Young, and Johnson PL , Proceedings of the New Zealand Society of Animal Production, Jun, Volume 69, Christchurch, p.101-103, (2009)
Genetic parameters for colour stability of chilled lamb : Brief Communication, NJ, McLean, Johnson PL, WE Bain, GJ Greer, and KG Dodds , Proceedings of the New Zealand Society of Animal Production, Jun, Volume 69, Christchurch, p.220-222, (2009)
Investigating marbling and its relationship to meat quality in New Zealand pasture fed lamb, EA, Young, WE Bain, NJ McLean, AW Campbell, and Johnson PL , Proceedings of the New Zealand Society of Animal Production, Jun, Volume 69, Christchurch, p.104-107, (2009)
2008
Effect of MyoMAX on carcass lean and fat, WE, Bain, Johnson PL, GJ Greer, KG Dodds, NJ McLean, RJ McLaren, SM Galloway, TC Van Stijn, and JC McEwan , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 68, Brisbane, Australia, p.43-44, (2008)
Factors affecting colour stability of fresh chilled lamb meat, Johnson, PL, NJ McLean, WE Bain, E Young, and AW Campbell , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 68, Brisbane, Australia, p.164-165, (2008)
2007
Current status of QTL and association studies in New Zealand cattle , sheep and deer, CA, Morris, AW Campbell, NG Cullen, GH Davis, JM Everett-Hincks, RJ Hall, HM Henry, Johnson PL, JC McEwan, SH Phua, et al. , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 67, Wanaka, p.153-159, (2007)
To wether - short scrotum or leave lambs as entire rams ? Revisiting an old question using new genetics, Johnson, PL, PR Kenyon, DL Burnham, and DM West , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 67, Wanaka, p.44-47, (2007)
2005
Effect of slaughter group and sire on carcass composition and meat quality characteristics of Texel-sired lambs, Johnson, PL, RW Purchas, and HT Blair , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 65, Christchurch, p.241-246, (2005)
2002
Ranking Romney sires on carcass value from a progeny test, Johnson, PL, RW Purchas, and HT Blair , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 62, Palmerston North, p.183-187, (2002)