Early weaning of Merino lambs on to different pasture types and the effects of tidabendazole and selenium treatments

摘要

The effect of time of weaning of Merino lambs on to different types of pasture in a tussock grassland environment was investigated. In 1963 significant differences in growth rates in favour of lambs weaned at 15#x2013;16 weeks compared with lambs weaned at 11#x2013;12 weeks were evident up to three months following weaning. In 1964 the reverse was true. However, nine months later differences were small and non-significant. Hence, under these conditions, if considerations of stock management demand it. lambs can be weaned at 11#x2013;12 weeks of age without detriment to their subsequent growth.