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New Zealand Journal of Agricultural Research Volume 13, 1970 - Issue 4
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Original Articles

Return intervals to first insemination and conception rates to second insemination in New Zealand Dairy Cattle

K. L. Macmillan N.Z. Dairy Board Artificial Breeding Centre, Awahuri, P.O. Box 232, Feilding, New Zealand
Pages 771-777 | Received 16 Apr 1970, Published online: 14 Feb 2012

Citations (13)

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Read on this site (9)

KL Macmillan. (2002) Advances in bovine theriogenology in New Zealand. 2. Breeding management and technologies for improved reproduction. New Zealand Veterinary Journal 50:sup3, pages 74-80.
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E.D. Fielden, R.E. Harris, K.L. Macmillan & S.L. Shrestha. (1980) Some aspects of reproductive performance in selected town-supply dairy herds. New Zealand Veterinary Journal 28:7, pages 131-142.
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K. L. Macmillan, E. D. Fielden & R. J. Curnow. (1977) VIII. Effects of non-oestrous inseminations and return patterns after second inseminations. New Zealand Journal of Experimental Agriculture 5:2, pages 123-127.
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K. L. Macmillan & J. D. Watson. (1976) VI. Intensity of oestrous behaviour and errors in diagnosis of oestrus. New Zealand Journal of Experimental Agriculture 4:1, pages 21-25.
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K. L. Macmillan & J. D. Watson. (1975) V. Cow age and stage of oestrus at insemination. New Zealand Journal of Experimental Agriculture 3:1, pages 29-35.
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K. L. Macmillan. (1975) IV. Differences in the distribution of return intervals between herds. New Zealand Journal of Experimental Agriculture 3:1, pages 21-28.
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K. L. Macmillan & J. D. Watson. (1975) II. Differences between sires in their return interval analyses. New Zealand Journal of Experimental Agriculture 3:1, pages 11-14.
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K. L. Macmillan & J. D. Watson. (1975) I. Differences between seasons and between livestock improvement associations. New Zealand Journal of Experimental Agriculture 3:1, pages 1-9.
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K. Moller, K.L. Macmillan & P. Shannon. (1972) Site of insemination and subsequent non-return rates in cows. New Zealand Journal of Agricultural Research 15:2, pages 252-254.
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Articles from other publishers (4)

IAN GORDON. 1983. Controlled Breeding in Farm Animals. Controlled Breeding in Farm Animals 25 33 .
K.L. MacMillan, A.M. Day & J.F. Smith. (1980) Onset of oestrus and fertility in lactating dairy cows injected with an analogue of prostaglandin F2α, cloprostenol. Animal Reproduction Science 3:3, pages 171-180.
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K. L. MacMillan & J. D. Watson. (2010) Fertility differences between groups of sires relative to the stage of oestrus at the time of insemination. Animal Production 21:03, pages 243-249.
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K.L. Macmillan & J.D. Watson. (1971) Short Estrous Cycles in New Zealand Dairy Cattle. Journal of Dairy Science 54:10, pages 1526-1529.
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