Professor Keith (Jock) Macmillan
Staff Profile:
Professor Keith (Jock) Macmillan BAgrSc (NZU), MAgrSc (VUW), PhD (Mich State Univ), Hon DSc (Massey Univ), FRSNZ
Professorial Fellow
Professor Macmillan was appointed to an industry funded Professorial Fellowship in 1997. He had previously been a Senior Principal Research Scientist with the Dairying Research Corporation in New Zealand. He has been prominent in dairy research in the New Zealand, Australian and American industries since 1962 and has received significant awards recognizing these contributions. His major focus has been on conducting laboratory and field studies related to the reproductive performance of dairy cows of high genetic merit.
Contact details:
Telephone: +613 9731 2234
Facsimile: +613 9731 2388
Email form: click to contact
Field of Expertise:
Reproductive endocrinology and physiology in lactating dairy cattle of high genetic merit and their relationship to herd reproductive management to achieve high levels of fertility in pasture- based systems of production.
Research Interests:
Synchronisation of oestrus
Treatment and management of post-partum anoestrus
Endocrinology of CL function in early lactation
Factors associated with the Phantom Cow Syndrome and its management
Role of IGF-I in the reproductive performance of dairy cows
Monitoring the reproductive performance of herds in the Victorian dairy industry
Current Research Projects:
CL function in the post-partum cow
Factors influencing variation in plasma concentrations of IGF-I in Holstein-Friesian cows
Risk factors associated with the incidence of the Phantom Cow Syndrome
Improving the fertility of the later calving cow in seasonal dairy herds
Elucidating the association between milk protein percentage and fertility
Identifying climatic factors influencing semen production in AI sires in Southern Victoria
Evaluating the potential for long lactations in Holstein cows in Victorian herds
Member of Research Groups:
Dairy Cattle Medicine and Production (Research Leader)
Selected Publications:
CAVALIERI, J., FLINKER, L.R., ANDERSON, G.A., MACMILLAN, K.L.-Characteristics of oestrus measured using visual observation and radiotelemetry. Animal Reproduction Science 76:1- 12 (2003).
DAVIES, K.L., ANDERSON, G.A., MACMILLAN, K.L.-Predicting calving curves for herds using controlled breeding programs. New Zealand Journal of Agricultural Research 46:97- 104 (2003).
MACMILLAN, K.L., SEGWAGWE, B.S.E., PINO, C.S.- Associations between the manipulation of patterns of follicular development and fertility in cattle. Animal Reproduction Science 78:327-344 (2003). (Review).
PARKER, K.I., ROBERTSON, D.M., GROOME, N.P., MACMILLAN, K.L.-Plasma concentrations of inhibin A and follicle stimulating hormone differ between cows with two or three waves of ovarian follicular development in a single estrous cycle. Biology of Reproduction 68:822-828 (2003).
RHODES, M.M., McDOUGALL, S., BURKE,C.R., VERKERK, G.A., MACMILLAN, K.L.-Invited review: Treatment of cows with an extended postpartum anestrous interval. Journal of Dairy Science 86:1876-1894 (2003). (Review).
MACMILLAN,K.L.-Advances in bovine theriogenology in NewZealand. 1. Pregnancy, parturition and the postpartum period. New Zealand Veterinary Journal 50 (Supplement):67-73 (2002). (Review)
MACMILLAN, K.L.- Advances in bovine theriogenology in New Zealand. 2. Breeding management and technologies for improved reproduction. New Zealand Veterinary Journal 50 (Supplement):74-80 (2002). (Review)
PADULA, A.M., MACMILLAN, K.L.-Reproductive responses of early postpartum dairy cattle to continuous treatment with a GnRH agonist (Deslorelin) for 28 days to delay resumption of ovulation. Animal Reproduction Science 70:23- 36 (2002).
MACMILLAN, K.L., TAUFA, V.K., DAY, A.M., EAGLES,V.M.- Some effects of post-insemination hormonal therapies on conception rates and re-insemination rates in lactating dairy cows. In Fertility in the High Producing Dairy Cow edit. MG Diskin & J Sreenan, Pp.195-208. Occasional Publication No. 26, Vol. 1. British Society of Animal Science (2001). (Review)
MACMILLAN, K.L., BURKE, C.R.-Effects of oestrous cycle control on reproductive efficiency. Animal Reproduction Science 42:307- 320 (1996). (Review)
Further Publications: PubMed Search