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Breed variation in wool quality, growth and plasma metabolites of prime lamb fed degummed canola


Malau-Aduli, AEO and McEvoy, PD and Parsons, D and Lane, PA, Breed variation in wool quality, growth and plasma metabolites of prime lamb fed degummed canola, Proceedings of the 10th World Congress of Genetics Applied to Livestock Production, 17-22 August 2014, Vancouver, Canada, pp. 1-6. (2014) [Refereed Conference Paper]

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Purebred and first-cross Merino prime lambs were supplemented with degummed canola and had ad libitum access to Lucerne hay in a nine-week feeding trial. The main objective was to evaluate the effects of supplementation, sire breed and sex on wool quality, digestibility, plasma metabolites, growth and body conformation of lambs sired by Dorset, White Suffolk and Merino rams under identical management conditions. Significant sire breed differences (P < 0.05) in withers height, wool fibre diameter, wool yield and wool brightness were detected. However, degummed canola supplementation and sex had no effect on plasma metabolites, dry matter intake, digestibility or average daily gain (


> 0.05). These findings suggest that dual-purpose sheep producers can better manage and match their prime lamb breeding goals with feed resources by supplementing both purebred Merino and terminally sired first cross Merino lambs with degummed canola without deleterious consequences on wool or fat-lamb income streams.

Item Details

Item Type:Refereed Conference Paper
Keywords:degummed canola, prime lambs, wool, sheep
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Animal production
Research Field:Animal reproduction and breeding
Objective Division:Animal Production and Animal Primary Products
Objective Group:Livestock raising
Objective Field:Sheep for wool
UTAS Author:Malau-Aduli, AEO (Associate Professor Aduli Malau-Aduli)
UTAS Author:McEvoy, PD (Mr Peter McEvoy)
UTAS Author:Parsons, D (Dr David Parsons)
UTAS Author:Lane, PA (Associate Professor Peter Lane)
ID Code:90787
Year Published:2014
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2014-04-23
Last Modified:2015-03-27
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