Mehta B S, Kandasamy N, Arora C L
Trop Anim Health Prod. 1979 Nov;11(4):227-30. doi: 10.1007/BF02237809.
Data on adult body weight of ewes belonging to Nali, Chokla breeds and their crosses (F1) with Rambouillet and Soviet Merino raised under semi-arid conditions in India were analysed. The ewes belonged to 5 distinct age groups ranging from 16.5 to 64 months. Nali and Chokla were significant lighter than all the 4 crossbred groups. There were no significant differences in body weight between crossbred groups except in the case of Soviet Merino x Chokla group which was the lightest and differed significantly from all other groups. Rambouillet crosses were heavier than Merino crosses but the difference was statistically significant only on Rambouillet x Chokla and Merino x Chokla. The improvement in body weight in crossbreds over native sheep ranged between 9.3 and 21.88%. The increase in live weight was significant only up to 49 months.
对在印度半干旱条件下饲养的纳利羊、乔克拉羊及其与兰布耶羊和苏联美利奴羊的杂交后代（F1）成年母羊的体重数据进行了分析。这些母羊分为5个不同的年龄组，年龄范围为16.5至64个月。纳利羊和乔克拉羊明显比所有4个杂交组都轻。除了苏联美利奴羊×乔克拉羊组是最轻的且与所有其他组有显著差异外，杂交组之间的体重没有显著差异。兰布耶羊杂交后代比美利奴羊杂交后代重，但这种差异仅在兰布耶羊×乔克拉羊和美利奴羊×乔克拉羊杂交组合中具有统计学意义。杂交羊相对于本地羊体重的提高幅度在9.3%至21.88%之间。活体重的增加仅在49个月之前具有显著性。
