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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)
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)
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)
1993
A comparison of the effect of split and single applications of nitrogen fertiliser on dairy production, JW Penno , Proceedings of the New Zealand Society of Animal Production, Volume 53, p.33-36, (1993) , (Full PDF)