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2008
Effect of genotype and concentrate supplementation on dairy product mix and the value of milk produced by grazing dairy cows during an extended lactation, S-A, Turner, CVC Phyn, ES Kolver, PW Aspin, and N Lopez-Villalobos , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 68, Brisbane, Australia, p.79-83, (2008)
Effect of genotype and diet on feed conversion efficiency of dairy cows during a 600-day extended lactation, CVC, Phyn, C Clark, PW Aspin, and ES Kolver , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 68, Brisbane, Australia, p.100-104, (2008)
2007
Production and physiological indicators to select cows suitable for extended lactations, JK, Kay, PW Aspin, CVC Phyn, JR Roche, and ES Kolver , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 67, Wanaka, p.315-319, (2007)
Supplemental fumarate has little effect on the detailed composition of bovine milk during early lactation, S-A, Turner, PW Aspin, and ES Kolver , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 67, Wanaka, p.242-247, (2007)
2006
Diet or strain: Effects on postpartum anovulatory interval in dairy cows, LM, Chagas, PJS Gore, AJ Sheahan, JM Lee, KA Watkins, PW Aspin, and JR Roche , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 66, Napier, p.339-343, (2006)
Effect of genotype and diet on milksolids production, body condition, and reproduction of cows milked continuously for 600 days, ES, Kolver, JR Roche, CR Burke, and PW Aspin , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 66, Napier, p.245-251, (2006)
A nutrient-signalling effect of grain feeding on postpartum anovulatory intervals in mature dairy cows, CR, Burke, JR Roche, PW Aspin, and JM Lee , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 66, Napier, p.334-338, (2006)
Plasma insulin, growth hormone, and IGF-1 concentrations of Holstein - Friesian cows of divergent genotype offered varying levels of concentrate in early lactation, ES, Kolver, JR Roche, and PW Aspin , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 66, Napier, p.403-408, (2006)
Prevalence of mastitis for cows of different genotypes milked for two consecutive seasons, SJ, Lacy-Hulbert, EL Summers, JH Williamson, PW Aspin, and ES Kolver , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 66, Napier, p.236-240, (2006)
Supplemental fumarate did not influence milksolids or methane production from dairy cows fed high quality pasture, ES, Kolver, and PW Aspin , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 66, Napier, p.409-415, (2006)
Supplementation with concentrates either pre- or post-partum does not affect milk production when diets are iso-energetic, JR, Roche, JM Lee, PW Aspin, AJ Sheahan, CR Burke, ES Kolver, B Sugar, and AR Napper , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 66, Napier, p.416-422, (2006)
2005
Effect of pre- and postpartum pasture feeding intakes on postpartum anoestrous intervals in dairy cows, CR, Burke, JR Roche, PW Aspin, JM Lee, and VK Taufa , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 65, Christchurch, p.221-224, (2005)
Effects of feeding level for four weeks precalving on milk production is small and dependent on level of feeding in early lactation, JR, Roche, ES Kolver, JM Lee, PW Aspin, CR Burke, P Taylor, and AR Napper , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 65, Christchurch, p.215-220, (2005)
Influence of dairy cow genotype on milksolids, body condition and reproduction response to concentrate supplementation, ES, Kolver, JR Roche, CR Burke, and PW Aspin , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 65, Christchurch, p.46-52, (2005)
2004
Effect of precalving feeding level on the milk production of grazing dairy cows, JR, Roche, JK Kay, ES Kolver, PW Aspin, J Lee, B Sugar, and AR Napper , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 64, Hamilton, p.227-231, (2004)
Fumarate reduces methane production from pasture fermented in continuous culture, ES, Kolver, PW Aspin, GN Jarvis, KM Elborough, and JR Roche , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 64, Hamilton, p.155-159, (2004)