The effect of genotype and zeranol implantation on performance of steers grazing Mitchell grass pastures in north-west Queensland

Dodt, R. and Thompson, P. J. M. and Coward, A. and Toleman, Mark ORCID: https://orcid.org/0000-0002-0535-8103 (1984) The effect of genotype and zeranol implantation on performance of steers grazing Mitchell grass pastures in north-west Queensland. In: 15th Biennial Australian Society of Animal Production Conference: Animal Production in Australia, 13-17 Feb 1984, Armidale, Australia.

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Abstract

[Summary]:
Steers of seven different genotypes were purchased from six locations in north-west Queensland and their liveweight performance was compared while grazing Mitchell grass pastures.

Only small differences were recorded in liveweight gain between steers containing the approximate breed components of Africander 3 Shorthorn 5, Sahiwal 3 Shorthorn 5, Santa Gertrudis, Brahman 4 British 4, and Brahman 6 British 2. The Bos indicus infused steers had annual liveweight gains of 135 compared with 110kg / head / year in the comparable age Hereford group.

Zeranol implantation gave 6% advantage in liveweight gain durin the first 84 d post implantation. This response was consisten across genotype groups. Final liveweight of treated steers was 3% heavier than of untreated steers, although zeranol treatment was given 444 d before slaughter.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version deposited with blanket permission of the Australian Society of Animal Production.
Faculty/School / Institute/Centre: Historic - Faculty of Business - Department of Information Systems (Up to 31 Mar 2007)
Faculty/School / Institute/Centre: Historic - Faculty of Business - Department of Information Systems (Up to 31 Mar 2007)
Date Deposited: 29 Sep 2010 02:50
Last Modified: 02 Jul 2013 23:19
Uncontrolled Keywords: effect; genotype; zeranol implantation; performance; steers; Mitchell; Queensland
Fields of Research (2008): 07 Agricultural and Veterinary Sciences > 0702 Animal Production > 070202 Animal Growth and Development
URI: http://eprints.usq.edu.au/id/eprint/5333

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