Deribe Belay, Taye Mengistie
Sirinka Agricultural Research Center, P.O. Box 74, Woldia, Ethiopia.
Bahir Dar University, College of Agriculture and Environmental Sciences, P.O. Box 79, Bahir Dar, Ethiopia.
Pak J Biol Sci. 2013 Jul 15;16(14):692-6. doi: 10.3923/pjbs.2013.692.696.
The study was conducted at Abergele in the semi arid parts of Sekota district to evaluate growth performance of Abergele goats managed under traditional management systems. Data on growth and growth rates were collected from 724 kids for two years. The least squares mean birth, three months, six months and yearling weight of kids obtained were 1.91 +/- 0.04, 6.84 +/- 0.19, 9.13 +/- 0.31 and 16.42 +/- 1.20 kg, respectively. Parity of doe and birth type of kid significantly affected birth weight and three months weight while sex of kid and season of birth of kid affected birth, three months, six months and yearling weight consistently. Kids from first parity does were lighter at birth, three months and six months of age than kids from higher parity does. Twin born kids were lower in weight at birth and three months of ages than their single born counterparts. Female kids and kids born during the dry season had lower weight at all ages considered. The least squares mean pre-weaning and post-weaning growth rates obtained were 53.4 +/- 2.30 and 29.3 +/- 4.32 g day(-1), respectively. Parity of doe, type of birth and season birth of kid affected pre-weaning growth rate. Kids from first parity does, twin born kids and kids born during the dry season had lower growth rate. The significant effect of fixed factors needs to be considered in an effort to improve productivity of goats in the study areas.
该研究在塞科塔区半干旱地区的阿贝盖莱进行，以评估在传统管理系统下饲养的阿贝盖莱山羊的生长性能。在两年时间里，从724只羔羊中收集了生长和生长率数据。所获得的羔羊最小二乘平均出生体重、三个月龄体重、六个月龄体重和一岁体重分别为1.91±0.04、6.84±0.19、9.13±0.31和16.42±1.20千克。母羊的胎次和羔羊的出生类型对出生体重和三个月龄体重有显著影响，而羔羊的性别和出生季节对出生体重、三个月龄体重、六个月龄体重和一岁体重均有持续影响。头胎母羊所生的羔羊在出生时、三个月龄和六个月龄时比高胎次母羊所生的羔羊体重更轻。双胞胎羔羊在出生时和三个月龄时的体重低于单胞胎羔羊。在所有考虑的年龄段，雌性羔羊和旱季出生的羔羊体重更低。所获得的最小二乘平均断奶前和断奶后生长率分别为53.4±2.30和29.3±4.32克/天。母羊的胎次、出生类型和羔羊的出生季节影响断奶前生长率。头胎母羊所生的羔羊、双胞胎羔羊和旱季出生的羔羊生长率较低。为提高研究区域山羊的生产力，需要考虑固定因素的显著影响。
