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2011
Feeding behaviour differs between dairy calves selected for divergent feed conversion efficiency, TC Green, GC Waghorn, NJ Beausoleil, and KA MacDonald , Proceedings of the New Zealand Society of Animal Production, Volume 71, Invercargill, p.281-285, (2011) , (Full PDF)
2010
Prediction of herbage dry matter intake for dairy cows grazing ryegrass-based pastures, J Baudracco, N Lopez-Villalobos, CW Holmes, and KA MacDonald , Proceedings of the New Zealand Society of Animal Production, Volume 70, Palmerston North, p.80-85, (2010) , (Full PDF)
Variation in feed conversion efficiency in Holstein-Friesian heifer calves, KR Carnie, SR Davis, KA MacDonald, GC Waghorn, VV Obolonkin, and RL Spelman , Proceedings of the New Zealand Society of Animal Production, Volume 70, Palmerston North, p.250-252, (2010) , (Full PDF)
2008
Indole and skatole as markers for nitrogen utilisation in dairy cows, D Pacheco, GA Lane, K Fraser, KA MacDonald, and PJ Back , Proceedings of the New Zealand Society of Animal Production, Volume 68, Brisbane, Australia, p.23-26, (2008) , (Full PDF)
2006
Effect of cow genotype and feed allowance on milk composition, S-A Turner, KA MacDonald, PJ Back, and NA Thomson , Proceedings of the New Zealand Society of Animal Production, Volume 66, Napier, p.397-402, (2006) , (Full PDF)
2005
Comparing feed allowances to inferred energy intake using data from a dairy grazing farm trial, JE Pryce, BL Harris, WA Montgomerie, R Jackson, KA MacDonald, CB Glassey, BS Thorrold, and CW Holmes , Proceedings of the New Zealand Society of Animal Production, Volume 65, Christchurch, p.225-230, (2005) , (Full PDF)
Differences in grazing behaviour and herbage intake between genotypes of Holstein-Friesian dairy cows grazing short or long swards, JL Rossi, KA MacDonald, BS Thorrold, J Hodgson, and CW Holmes , Proceedings of the New Zealand Society of Animal Production, Volume 65, Christchurch, p.236-240, (2005) , (Full PDF)
Economic comparison of Holstein-Friesian strains, JE Pryce, BL Harris, CB Glassey, WA Montgomerie, R Jackson, KA MacDonald, BS Thorrold, and CW Holmes , Proceedings of the New Zealand Society of Animal Production, Volume 65, Christchurch, p.68-73, (2005) , (Full PDF)
Impact of farm management decision rules on the production and profit of different strains of Holstein-Friesian dairy cows, KA MacDonald, BS Thorrold, CB Glassey, CW Holmes, and JE Pryce , Proceedings of the New Zealand Society of Animal Production, Volume 65, Christchurch, p.40-45, (2005) , (Full PDF)
Modelling dairy system efficiencies, RN Jensen, PC Beukes, DA Clark, and KA MacDonald , Proceedings of the New Zealand Society of Animal Production, Volume 65, Christchurch, p.203-208, (2005) , (Full PDF)
2002
Effects of time-of-calving on dairy production: a farmlet study, MJ Audlist, KA MacDonald, NA Thomson, M Coulter, JAS Lancaster, and JW Penno , Proceedings of the New Zealand Society of Animal Production, Volume 62, Palmerston North, p.42-43, (2002) , (Full PDF)
Managing dairy calves using continuous stocking and sward surface height - a review, SJ Bluett, and KA MacDonald , Proceedings of the New Zealand Society of Animal Production, Volume 62, Palmerston North, p.124-127, (2002) , (Full PDF)
Salt supplementation of lactating cows, KA MacDonald, JA Lile, JAS Lancaster, M Coulter, and MB O'Connor , Proceedings of the New Zealand Society of Animal Production, Volume 62, Palmerston North, p.236-239, (2002) , (Full PDF)
A whole-farm model applied to a dairy system, ME Wastney, CC Palliser, JA Lile, KA MacDonald, JW Penno, and KP Bright , Proceedings of the New Zealand Society of Animal Production, Volume 62, Palmerston North, p.120-123, (2002) , (Full PDF)
2001
Adapting the MOLLY cow model to fit production data from New Zealand animals, CC Palliser, KP Bright, KA MacDonald, JW Penno, and ME Wastney , Proceedings of the New Zealand Society of Animal Production, Volume 61, Christchurch, p.234-236, (2001) , (Full PDF)
Magnesium supplementation of lactating dairy cows in the summer and autumn, KA MacDonald, JW Penno, GA Verkerk, J Jago, and BW Dow , Proceedings of the New Zealand Society of Animal Production, Volume 61, Christchurch, p.148-151, (2001) , (Full PDF)
Monitoring adrenal activity in dairy cows under various feeding regimens using faecal glucocorticoid metabolites, CJ Morrow, ES Kolver, KA MacDonald, GA Verkerk, and LR Matthews , Proceedings of the New Zealand Society of Animal Production, Volume 61, Christchurch, p.52-55, (2001) , (Full PDF)
Toward a predictive model of supplementary feeding response from grazing dairy cows, JW Penno, KA MacDonald, and CW Holmes , Proceedings of the New Zealand Society of Animal Production, Volume 61, Christchurch, p.229-233, (2001) , (Full PDF)
2000
The effect of pasture silage quality on milk production and liveweight gain of dairy cattle, KA MacDonald, PK Nicholas, JM Kidd, JW Penno, and AR Napper , Proceedings of the New Zealand Society of Animal Production, Volume 60, Hamilton, p.253-255, (2000) , (Full PDF)
1999
Increasing milksolids production with supplementary feeds, JW Penno, JM McGrath, KA MacDonald, M Coulter, and JAS Lancaster , Proceedings of the New Zealand Society of Animal Production, Volume 59, p.188-191, (1999) , (Full PDF)
Validation of body condition scoring by using ultrasound measurements of subcutaneous fat., KA MacDonald, GA Verkerk, and JW Penno , Proceedings of the New Zealand Society of Animal Production, Volume 59, p.177-179, (1999) , (Full PDF)
1998
Balancing pasture and maize silage diets for dairy cows using urea, soybean meal or fishmeal, KA MacDonald, JW Penno, ES Kolver, WAC Carter, and JAS Lancaster , Proceedings of the New Zealand Society of Animal Production, Volume 58, p.102-105, (1998) , (Full PDF)
The effect of stage of lactation and season on milksolids response to supplementary feeding of dairy cows., JW Penno, CW Holmes, KA MacDonald, and BJ Walsh , Proceedings of the New Zealand Society of Animal Production, Volume 58, p.113-116, (1998) , (Full PDF)
Management decision rules to optimise milksolids production on dairy farms, KA MacDonald, and JW Penno , Proceedings of the New Zealand Society of Animal Production, Volume 58, p.132-135, (1998) , (Full PDF)
Using nitrogen fertiliser to increase dairy farm profitability, JM McGrath, JW Penno, KA MacDonald, and WA Carter , Proceedings of the New Zealand Society of Animal Production, Volume 58, p.117-120, (1998) , (Full PDF)
1997
The effect of level of feeding during rearing on the first lactation milk yield of Friesian replacement heifers., JW Penno, KA MacDonald, and AM Bryant , Proceedings of the New Zealand Society of Animal Production, Volume 57, p.176-178, (1997) , (Full PDF)
Growth of friesian calves offered three allowances of milk replacer., KA MacDonald, and JW Penno , Proceedings of the New Zealand Society of Animal Production, Volume 57, p.179-181, (1997) , (Full PDF)
1985
Comparative dairy production of Jersey and Friesians, AM Bryant, MAS Cook, and KA MacDonald , Proceedings of the New Zealand Society of Animal Production, Volume 45, p.7-12, (1985) , (Full PDF)
Effects of varying feeding time on diurnal calving patterns in dairy cows, KL Macmillan, MG Pearce, PJA Copeman, KA MacDonald, and R Kilgour , Proceedings of the New Zealand Society of Animal Production, Volume 45, p.35-38, (1985) , (Full PDF)