Norris R T, Richards R B, Norman G J
Animal Health Division, Department of Agriculture, South Perth, Western Australia.
Aust Vet J. 1992 Jan;69(1):8-10. doi: 10.1111/j.1751-0813.1992.tb09851.x.
Adult wethers (n = 750) were lot-fed for 13 days, 8 days or 3 days before a simulated voyage lasting 18 days to examine whether the period of lot-feeding affected the proportion of sheep that ate pelleted feed and their body weight change during simulated shipping. There was no significant difference in the proportion of non-feeders between treatment groups on days 7 and 14 of the voyage. Body weights were not significantly different between the treatment groups on days 14 and 18 of the voyage. Overall body weight loss, from the farm to the end of simulated shipping, was 4.08 kg (+/- 0.28, s.e.m.), 4.58 kg (+/- 0.28) and 4.51 kg (+/- 0.28) in sheep lot-fed for 13 days, 8 days and 3 days, respectively, and was not significantly different between treatments. It was concluded that lot-feeding for 13 days conferred no advantage in body weight or numbers of non-feeders compared with shorter periods in this study.
成年阉羊(n = 750)在为期18天的模拟航行前分别进行13天、8天或3天的圈饲,以研究圈饲期是否会影响采食颗粒饲料的绵羊比例及其在模拟运输期间的体重变化。在航行的第7天和第14天,各处理组中不采食者的比例没有显著差异。在航行的第14天和第18天,各处理组的体重没有显著差异。从农场到模拟运输结束,圈饲13天、8天和3天的绵羊总体体重损失分别为4.08千克(±0.28,标准误)、4.58千克(±0.28)和4.51千克(±0.28),各处理之间没有显著差异。研究得出结论,在本研究中,与较短的圈饲期相比,圈饲13天在体重或不采食者数量方面没有优势。