Higher value Suffolks
LATEST figures from the Suffolk Sire Reference Scheme show agenetic improvement in growth rate of 2.6 kg in 20 week old lambs sired by selected Suffolk tups.
Over the same period there has been an improvement of 0.9mm in muscle depth and 43 points in lean growth index score, achieved with less than 1/10mm change in fat depth.
There are now about 50 flocks participating in the SSRS.
"Our research has shown that carcasses from crossbred lambs to high index sires are worth about £2 more than those from their lower index flock mates," comments Dr Geoff Simm from the Scottish Agricultural College, Edinburgh.