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K

K.A. Macdonald

DairyNZ

38H指数
152论文数
4.6K被引数
收录论文 17
发表时间
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Short communication: Evaluation of an eating time sensor for use in pasture-based dairy systems
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2020-10-01
err10
errOAAI
errDela Rue, B.; Lee, J. M.; Eastwood, C. R.; Macdonald, K. A.; Gregorini, P.
err分享
err收藏
A quantitative case study assessment of biophysical and economic effects from altering season of calving in temperate pasture-based dairy systems
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2019-12-01
err4
errOAAI
errSpaans, O. K.; Macdonald, K. A.; Neal, M.; Auldist, M. J.; Lancaster, J. A. S.; Bryant, A. M.; Doole, G. J.; Roche, J. R.
err分享
err收藏
Short communication: Milk fat payment affects the relative profitability of Jersey and Holstein-Friesian cows at optimal comparative stocking rate
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2019-10-01
err9
errOAAI
errEdwards, J. P.; Spaans, O. K.; Neal, M.; Macdonald, K. A.
err分享
err收藏
Review: New considerations to refine breeding objectives of dairy cows for increasing robustness and sustainability of grass-based milk production systems
errANIMAL
IF4.2
err2018-01-01
err22
errOAAI
errRoche, J. R.; Berry, D. P.; Delaby, L.; Dillon, P. G.; Horan, B.; Macdonald, K. A.; Neal, M.
err分享
err收藏
Short communication: Grazing pattern of dairy cows that were selected for divergent residual feed intake as calves简短的交流: 被选为犊牛的剩余饲料摄入量不同的奶牛的放牧模式
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2015-09-01
err22
errOAAI
errGregorini, P.; Waghorn, G. C.; Kuhn-Sherlock, B.; Romera, A. J.; Macdonald, K. A.
err分享
err收藏
Incorporating a prediction of postgrazing herbage mass into a whole-farm model for pasture-based dairy systems
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2014-07-01
err11
errOAAI
errGregorini, P.; Galli, J.; Romera, A. J.; Levy, G.; Macdonald, K. A.; Fernandez, H. H.; Beukes, P. C.
err分享
err收藏
Holstein-Friesian calves selected for divergence in residual feed intake during growth exhibited significant but reduced residual feed intake divergence in their first lactation
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2014-03-01
err62
errOAAI
errMacdonald, K. A.; Pryce, J. E.; Spelman, R. J.; Davis, S. R.; Wales, W. J.; Waghorn, G. C.; Williams, Y. J., II; Marett, L. C.; Hayes, B. J.
err分享
err收藏
Calving body condition score affects indicators of health in grazing dairy cows
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2013-09-01
err92
errOAAI
errRoche, J. R.; Macdonald, K. A.; Schuetz, K. E.; Matthews, L. R.; Verkerk, G. A.; Meier, S.; Loor, J. J.; Rogers, A. R.; McGowan, J.; Morgan, S. R.; Taukiri, S.; Webstert, J. R.
err分享
err收藏
Nitrogen metabolism and rumen microbial enumeration in lactating cows with divergent residual feed intake fed high-digestibility pasture
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2012-09-01
err128
errOAAI
errRius, A. G.; Kittelmann, S.; Macdonald, K. A.; Waghorn, G. C.; Janssen, P. H.; Sikkema, E.
err分享
err收藏
Short communication: Effect of stocking rate on the economics of pasture-based dairy farms
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2011-05-01
err57
errOAAI
errMacdonald, K. A.; Beca, D.; Penno, J. W.; Lancaster, J. A. S.; Roche, J. R.
err分享
err收藏
Evaluation of a whole-farm model for pasture-based dairy systems
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2008-06-01
err77
errOAAI
errBeukes, P. C.; Palliser, C. C.; Macdonald, K. A.; Lancaster, J. A. S.; Levy, G.; Thorrold, B. S.; Wastney, M. E.
err分享
err收藏
Effect of stocking rate on pasture production, milk production, and reproduction of dairy cows in pasture-based systems
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2008-05-01
err221
errOAAI
errMacdonald, K. A.; Penno, J. W.; Lancaster, J. A. S.; Roche, J. R.
err分享
err收藏
Effect of restricted feeding and monopropylene glycol postpartum on metabolic hormones and postpartum anestrus in grazing dairy heifers限食和产后单丙二醇对放牧奶牛代谢激素和产后发情的影响
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2008-05-01
err13
errOAAI
errChagas, L. M.; Gore, P. J. S.; Graham, G.; Macdonald, K. A.; Blache, D.
err分享
err收藏
A comparison of three strains of holstein-friesian grazed on pasture and managed under different feed allowances
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2008-04-01
err109
errOAAI
errMacdonald, K. A.; Verkerk, G. A.; Thorrold, B. S.; Pryce, J. E.; Penno, J. W.; McNaughton, L. R.; Burton, L. J.; Lancaster, J. A. S.; Williamson, J. H.; Holmes, C. W.
err分享
err收藏
Body condition score and body weight effects on dystocia and stillbirths and consequent effects on postcalving performance
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2007-09-01
err164
errOAAI
errBerry, D. P.; Lee, J. M.; Macdonald, K. A.; Roche, J. R.
err分享
err收藏
Effect of monopropylene glycol on luteinizing hormone, metabolites, and postpartum anovulatory intervals in primiparous dairy cows单丙二醇对初产奶牛黄体生成素，代谢产物和产后无排卵间隔的影响
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2007-03-01
err30
errOAAI
errChagas, L. M.; Gore, P. J. S.; Meier, S.; Macdonald, K. A.; Verkerk, G. A.
err分享
err收藏
Precalving effects on metabolic responses and postpartum Anestrus in grazing primiparous dairy cows
errJOURNAL OF DAIRY SCIENCE
IF4.4
err2006-06-01
err34
errOAAI
errChagas, L. M.; Rhodes, F. M.; Blache, D.; Gore, P. J. S.; Macdonald, K. A.; Verkerk, G. A.
err分享
err收藏

研究方向

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合作学者
合作期刊
B
Ben J. Hayes
H 指数: 99 · 论文数: 647
D
D.P. Berry
H 指数: 77 · 论文数: 681
J
Juan J. Loor
H 指数: 76 · 论文数: 786
P
Peter H. Janssen
H 指数: 75 · 论文数: 362
J
J.E. Pryce
H 指数: 59 · 论文数: 391
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