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2015
2015 NZSAP Living Legend Address – Invermay Agricultural Centre, GH, Shackell, KR Drew, PF Fennessy, AJ Allison, JC McEwan, and AM Crawford , Proceedings of the New Zealand Society of Animal Production, 07/2015, Volume 75, Dunedin, p.149, (2015)
2013
Ewe body condition score and the effect on lamb growth rate, HC, Mathias-Davis, GH Shackell, GJ Greer, AL Bryant, and JM Everett-Hincks , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 73, Hamilton, p.131-135, (2013)
2011
The association of ewe body condition score with weight of lamb weaned, HC, Mathias-Davis, GH Shackell, GJ Greer, and JM Everett-Hincks , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 71, Invercargill, p.62-65, (2011)
2009
A simulation model to partition ewe efficiency into component traits for genetic analysis, JA, Sise, GH Shackell, TJ Byrne, SF Glennie, and PR Amer , Proceedings of the New Zealand Society of Animal Production, Jun, Volume 69, Christchurch, p.223-227, (2009)
2008
Artificial insemination success rates for Meat and Wool New Zealand central progeny test sires, NJ, McLean, KG Dodds, KJ Knowler, NB Jopson, M Behrent, CM Logan, PD Muir, GH Shackell, and JC McEwan , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 68, Brisbane, Australia, p.77-78, (2008)
2005
Software for evaluating sampling strategies and error rates in the identification of mixed meat products, I, Vetharaniam, and GH Shackell , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 65, Christchurch, p.102-106, (2005)
Traceability contract session: Introduction, GH, Shackell , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 65, Christchurch, p.74, (2005)
Traceability systems in the meat industry, GH, Shackell , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 65, Christchurch, p.97-101, (2005)
1996
Factors influencing induced oestrus in the ewe at the start of the breeding season, LS, Fenton, GH Shackell, ML Ramsay, KG Dodds, PJ Reid, and BJ McLeod , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 56, p.381, (1996)
We couldn't do it without 'em!, GH, Shackell , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 56, p.1-4, (1996)
1995
MOET in ultrafine Merinos: An experimental evaluation, T, Wuliji, J Aspinall, JTJ Land, GH Shackell, KG Dodds, RN Andrews, and J Rogers , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 55, p.281-284, (1995)
1992
Dose-response to a single injection of PMSG in Merino ewes carrying a double copy of the Booroola FecB gene, GH, Shackell, and KL Isaacs , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 52, p.153-156, (1992)
1991
Artificial insemination and synchronised natural breeding in Red deer, PF, Fennessy, CG Mackintosh, GH Shackell, and AJ Whaanga , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 51, p.327-332, (1991)
A simplified MOET technique for Merino ewes carrying a double copy of the Booroola FecB gene, GH, Shackell, and KL Isaacs , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 51, p.107-110, (1991)
The timing of oestrus, LH surge and ovulation in ewes following synchronisation with MAP sponges FGA sponges or CIDR's, GH, Shackell , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 51, p.73-78, (1991)
1990
Factors influencing the success of a large scale artificial insemination programme in sheep, GH, Shackell, B Kyle, and RP Littlejohn , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 50, p.427-430, (1990)
Mating performance of Texel rams, GH, Davis, TW Knight, E Sorenson, GH Shackell, MR Holmes, and PA Farquhar , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 50, p.453-454, (1990)
1982
Ovulation and oestrous responses of high and low fecundity ewes to ingestion of isoflavone-rich pasture, RW, Kelly, and GH Shackell , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 42, p.29-32, (1982)
1975
Libido testing and subsequent mating performance in rams, RW, Kelly, AJ Allison, and GH Shackell , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 35, p.204-211, (1975)