Ely et al. In addition to leaner and better quality carcasses, the Spring management system had highest pregnancy rate and highest litter size born. This can be important in obtaining larger quantities and better quality of lamb's wool, an additional income to sheep enterprises. Least squares means for lamb growth traits by system 1 and dam breed. 10 b 1 See Table 1.
Least squares means for lamb carcass traits by system.
Weight off-test, pounds 2 84.5 a 93.3 b 88.8 a Slaughter weight, pounds 2 80.3 a 86.9 b 82.6 a Hot carcass weight, pounds 2 46.2 a 50.4 b 48.7 b Chilled carcass weight, pounds 2 45.0 a 49.1 b 47.7 b Quality grade 2 11.1 a 11.3 b 11.4 b Backfat thickness, inches 2 0.20 a 0.14 b 0.14 b Adj. References Clarke, S.E., and W.D. Hohenboken. 1983. Estimation of repeatability, heritability and breed differences for lamb production. Cloete, S.W.P., and H.J. Heydenrych. Genetic parameters for reproduction rate in the Tygerhoek Merino flock.