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Effects of castration and age on carcass composition of male lambs



Effects of castration and age on carcass composition of male lambs



Proceedings of the Australian Society of Animal Production 17: 457



In Tasmania, male and female prime lambs are mostly managed as one group and slaughtered at 3-6 months old. In an experiment Border Leicester X Polwarth male lambs were either castrated or left entire, and grazed on highly improved pasture on the north-west coast. Live animal and carcass data were collected around slaughter at about 4.5, 6.5 or 9.5 months of age. Every 6-8 weeks lambs were weighed and condition scored (lean to fat, 1-15 arbitrary units).

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