K. Macdonald

发表

Weather, herbage quality and milk production in pastoral systems. 4. Effects on dairy cattle production.

Lr Turner, D. Donaghy, D. Berry, 2009 .

Measuring residual feed intake in dairy heifers fed an alfalfa (Medicago sativa) cube diet.

S. Davis, G. Waghorn, R. Spelman, 2012, Journal of dairy science.

Predicting cow production based on an estimate of animal genotype within a Whole Farm Model

K. A. Macdonald, Pierre C. Beukes, B Montgomerie, 2006 .

Evaluation of a whole-farm model for pasture-based dairy systems.

M. Wastney, P. Beukes, B. Thorrold, 2008, Journal of dairy science.

Impact of farm management decision rules on the production and profit of different strains of Holstein-Friesian dairy cows

J. Pryce, C. Glassey, K. Macdonald, 2005 .

Body condition score at calving affects systemic and hepatic transcriptome indicators of inflammation and nutrient metabolism in grazing dairy cows.

J. Loor, F. Cardoso, J. Webster, 2015, Journal of dairy science.

Development and evaluation of a pastoral simulation model that predicts dairy cattle performance based on animal genotype and environmental sensitivity information

Jennie E. Pryce, C. W. Holmes, Nicolas Lopez-Villalobos, 2008 .

Dairy cow breed interacts with stocking rate in temperate pasture-based dairy production systems.

J. Roche, K. Macdonald, A. M. Bryant, 2018, Journal of dairy science.

Associations among body condition score, body weight, somatic cell count, and clinical mastitis in seasonally calving dairy cattle.

D. Berry, L. Matthews, J. M. Lee, 2007, Journal of dairy science.

Relationships among body condition score, body weight, and milk production variables in pasture-based dairy cows.

D. Berry, J. M. Lee, J. Roche, 2007, Journal of dairy science.

A 100-Year Review: A century of change in temperate grazing dairy systems.

D. Donaghy, D. Berry, B. Horan, 2017, Journal of dairy science.

Production and economic responses to intensification of pasture-based dairy production systems.

J. Roche, J. Penno, K. Macdonald, 2017, Journal of dairy science.

Incorporating a prediction of postgrazing herbage mass into a whole-farm model for pasture-based dairy systems.

P. Gregorini, P. Beukes, J. Galli, 2014, Journal of dairy science.

Behavioral and physiological effects of a short-term feed restriction in lactating dairy cattle with different body condition scores at calving.

J. Webster, C. Tucker, N. Cox, 2013, Journal of dairy science.

Effect of feeding level pre- and post-puberty and body weight at first calving on growth, milk production, and fertility in grazing dairy cows.

J. Roche, J. Penno, K. Macdonald, 2005, Journal of dairy science.

Precalving effects on metabolic responses and postpartum anestrus in grazing primiparous dairy cows.

D. Blache, G. Verkerk, K. Macdonald, 2006, Journal of dairy science.

Genomic prediction of dry matter intake in dairy cattle from an international data set consisting of research herds in Europe, North America, and Australasia.

K. Weigel, M. Calus, R. Veerkamp, 2015, Journal of dairy science.

Residual feed intake of lactating Holstein-Friesian cows predicted from high-density genotypes and phenotyping of growing heifers.

S. Davis, G. Waghorn, R. Spelman, 2014, Journal of dairy science.

Short communication: grazing pattern of dairy cows that were selected for divergent residual feed intake as calves.

G. Waghorn, P. Gregorini, A. Romera, 2015, Journal of dairy science.

International genetic evaluations for feed intake in dairy cattle through the collation of data from multiple sources.

K. Weigel, R. Veerkamp, M. Coffey, 2013, Journal of dairy science.

Body condition score and body weight effects on dystocia and stillbirths and consequent effects on postcalving performance.

D. Berry, J. M. Lee, J. Roche, 2007, Journal of dairy science.

Growth targets and rearing strategies for replacement heifers in pasture-based systems: a review

J. Drackley, J. Roche, P. Amer, 2015 .

Hot topic: Selecting cattle for low residual feed intake did not affect daily methane production but increased methane yield.

N. López-Villalobos, D. Donaghy, J. Roche, 2019, Journal of dairy science.

Nitrogen metabolism and rumen microbial enumeration in lactating cows with divergent residual feed intake fed high-digestibility pasture.

G. Waghorn, S. Kittelmann, P. Janssen, 2012, Journal of dairy science.

Effect of monopropylene glycol on luteinizing hormone, metabolites, and postpartum anovulatory intervals in primiparous dairy cows.

S. Meier, G. Verkerk, K. Macdonald, 2007, Journal of dairy science.

Effect of stocking rate on pasture production, milk production, and reproduction of dairy cows in pasture-based systems.

J. Roche, J. Penno, K. Macdonald, 2008, Journal of dairy science.

Effects of perennial ryegrass infected with either AR1 or wild endophyte on dairy production in the Waikato

E. Thom, D. Clark, K. Macdonald, 2005 .

Milksolids production from cows grazing perennial ryegrass containing AR 1 or wild endophyte

E. Thom, D. Clark, K. Macdonald, 2022 .

Production and profit of current and future dairy systems using differing nitrogen leaching mitigation methods: the Pastoral 21 experience in Waikato

M. Shepherd, C. Roach, M. Neal, 2020, New Zealand Journal of Agricultural Research.

Weather, herbage quality and milk production in pastoral systems. 3. Inter-relationships and associations between weather variables and herbage growth rate, quality and mineral concentration

Lr Turner, D. Donaghy, D. Berry, 2009 .

Magnesium supplementation of lactating dairy cows in the summer and autumn

J. Jago, Verkerk Ga, K. Macdonald, 2001 .

New Zealand Society of Animal Production online archive

J. Penno, K. Macdonald, 1998 .

Weather, herbage quality and milk production in pastoral systems. 2. Temporal patterns and intra-relationships in herbage quality and mineral concentration parameters

Lr Turner, D. Donaghy, D. Berry, 2009 .

Relationships between residual feed intake, average daily gain, and feeding behavior in growing dairy heifers.

G. Waghorn, J. Jago, K. Macdonald, 2013, Journal of dairy science.

Feeding behaviour differs between dairy calves selected for divergent feed conversion efficiency

G. Waghorn, N. Beausoleil, K. Macdonald, 2011 .

Genetic ancestry modifies fatty acid concentrations in different adipose tissue depots and milk fat

J. Roche, J. Kay, S. Meier, 2013, Journal of Dairy Research.

Genetic variation in PLAG1 associates with early life body weight and peripubertal weight and growth in Bos taurus.

R. Snell, M. Georges, S. Davis, 2012, Animal genetics.

Responses to supplementation by dairy cows given low pasture allowances in different seasons 1. Pasture intake and substitution

E. Thom, S. Davis, J. Penno, 2006 .

Development and evaluation of a standardised means for estimating herbage mass of dairy pastures using the rising plate meter.

G. Bishop-Hurley, H. Henderson, M. Upsdell, 2001 .

Responses to supplementation by dairy cows given low pasture allowances in different seasons 2. Milk production

E. Thom, S. Davis, J. Penno, 2006 .

Milksolids production from different combinations of perennial ryegrass and white clover cultivars : II Milksolids production and farm profitability

W. A. Carter, S. L. Woodward, J. Crush, 2001 .

Association between body condition score and live weight in pasture-based Holstein-Friesian dairy cows

Donagh P Berry, D. Berry, J. Roche, 2006, Journal of Dairy Research.

Effect of nitrogen fertiliser and summer rotation length on milk production in a dry Waikato summer.

W. A. Carter, J. Penno, K. Macdonald, 1995 .

Farm systems – Impact of stocking rate on dairy farm efficiency

P. Nicholas, J. Lile, J. Penno, 2001 .

Associations among body condition score, body weight, and reproductive performance in seasonal-calving dairy cattle.

K A Macdonald, J R Roche, D. Berry, 2007, Journal of dairy science.

Accuracy of genomic predictions of residual feed intake and 250-day body weight in growing heifers using 625,000 single nucleotide polymorphism markers.

B. Hayes, S. Davis, W. Wales, 2012, Journal of dairy science.

A comparison of three strains of holstein-friesian grazed on pasture and managed under different feed allowances.

J. E. Pryce, K. A. Macdonald, B. S. Thorrold, 2008, Journal of dairy science.

Growth and milksolids production in pastures of older and more recent ryegrass and white clover cultivars under dairy grazing

S. L. Woodward, K. Macdonald, J. Eerens, 2006 .

Holstein-Friesian calves selected for divergence in residual feed intake during growth exhibited significant but reduced residual feed intake divergence in their first lactation.

B. Hayes, S. Davis, L. Marett, 2014, Journal of dairy science.

Calving body condition score affects indicators of health in grazing dairy cows.

J. Loor, J. Webster, K. Schütz, 2013, Journal of dairy science.

Describing the body condition score change between successive calvings: a novel strategy generalizable to diverse cohorts.

R. Boston, D. Berry, J. M. Lee, 2007, Journal of dairy science.

Measuring methane from grazing dairy cows using GreenFeed

G. Waghorn, A. Jonker, K. Macdonald, 2016 .

Milksolids production from different combinations of perennial ryegrass and white clover cultivars: I Trial design and pasture performance

W. A. Carter, S. L. Woodward, J. Crush, 2001 .

A whole-farm model applied to a dairy system

K. A. Macdonald, K. P. Bright, J. W. Penno, 2002 .

Somatotropic axis components and nutrient partitioning in genetically diverse dairy cows managed under different feed allowances in a pasture system.

M. Lucy, G. Verkerk, R. Cursons, 2009, Journal of dairy science.

A comparison of three strains of Holstein-Friesian cows grazed on pasture: growth, development, and puberty.

D. Berry, J. Penno, G. Verkerk, 2007, Journal of dairy science.

Weather, herbage quality and milk production in pastoral systems. 1. Temporal patterns and intra-relationships in weather variables

Lr Turner, D. Donaghy, D. Berry, 2009 .

Farm systems research at Ruakura – a 60-year legacy underpinning profitable and sustainable pasture-based dairy systems

J. Roche, K. Macdonald, 2023, New Zealand Journal of Agricultural Research.

THE VIABILITY OF MILK PRODUCTION IN PASTURE-BASED SYSTEMS

K. Macdonald, 2014 .

Milksolids production and farm profitability from different combinations of perennial ryegrass and white clover cultivars : Progress report 2001-2003

S. L. Woodward, J. Crush, K. Macdonald, 2022 .

Mowing pasture to improve milk production

W. A. Carter, J. McGrath, J. Penno, 1999 .

Resource Efficient Dairying trial : measurement criteria for farm systems over a range of resource use

D. Clark, K. Macdonald, R. Jensen, 2005 .

Modelling the bi-peak lactation curves of summer calvers in New Zealand dairy farm systems

K. Bright, P. Beukes, M. Auldist, 2005 .

Increased stocking rate and associated strategic dry-off decision rules reduced the amount of nitrate-N leached under grazing.

S. Ledgard, B. Horan, S. Lindsey, 2016, Journal of dairy science.

Short communication: Effect of stocking rate on the economics of pasture-based dairy farms.

J. Roche, J. Penno, D. Beca, 2011, Journal of dairy science.

Short communication: Milk fat payment affects the relative profitability of Jersey and Holstein-Friesian cows at optimal comparative stocking rate.

M. Neal, J. Edwards, K. Macdonald, 2019, Journal of dairy science.

The Effects of System Changes in Grazed Dairy Farmlet Trials on Greenhouse Gas Emissions

C. D. de Klein, T. J. van der Weerden, R. Monaghan, 2018, Animals : an open access journal from MDPI.

Genomic predictions for dry matter intake using the international reference population of gDMI

K. Weigel, M. Calus, R. Veerkamp, 2014 .

Characterization of exosomes from body fluids of dairy cows.

K. Vaswani, M. Mitchell, B. J. Arachchige, 2017, Journal of animal science.

Review: New considerations to refine breeding objectives of dairy cows for increasing robustness and sustainability of grass-based milk production systems.

L. Delaby, M. Neal, D. Berry, 2018, Animal : an international journal of animal bioscience.

Using an existing intake model to demonstrate relationships between herbage allowance, hunger drive, days in milk and actual intake in grazing dairy cows

P. Gregorini, P. Beukes, A. Romera, 2009 .

Effect of avoparcin on the yield and composition of milk and on bloat in pasture-fed dairy cows

V. R. Carruthers, C. Holmes, K. Macdonald, 1992 .

Body condition score at calving affects systemic and hepatic transcriptome indicators of inflammation and nutrient metabolism in grazing dairy cows.

K. Schütz, L. Matthews, S. Meier, 2015, Journal of dairy science.

Non-replication of genome-wide-based associations of efficient food conversion in dairy cows.

R. Snell, R. Spelman, M. Littlejohn, 2012, Animal genetics.

International genetic evaluations for feed intake in dairy cattle through the collation of data from multiple sources.

R. Veerkamp, N. Krattenmacher, J. Pryce, 2014, Journal of dairy science.