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Effect of non-genetic factors on survivability in Mecheri sheep.

机译:非遗传因素对Mecheri绵羊生存能力的影响。

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摘要

Data on 1763 records of Mecheri sheep at Mecheri Sheep Research Station, Pottaneri, Salem (Tamil Nadu) over a period of sixteen years (1991 to 2006) were analyzed for pre- and post-weaning survivability (0-3 months, 3-6 months and 6-12 months of age). The effects of various non-genetic factors viz., period of lambing, season of lambing and sex of lamb on survivability were analyzed. The least squares means for 0-3, 3-6 and 6-12 months survivability were 94.52+or-0.63, 93.52+or-0.67 and 92.46+or-0.80%, respectively. Period and season of lambing had significant (P<0.05/P<0.01) effects on pre-weaning survivability. Post-weaning survivability was influenced in general by the period and season of lambing (P<0.01). Sex of lamb was a non-significant factor for the survivability except for 6-12 months survivability.
机译:分析了十六年(1991年至2006年)在塞勒姆Pottaneri(泰米尔纳德邦)的Mecheri绵羊研究站的Mecheri绵羊的1763条记录的数据,用于断奶前后的存活率(0-3个月,3-6)个月和6-12个月大)。分析了各种非遗传因素,即产羔时间,产羔季节和羔羊性别对存活率的影响。 0-3、3-6和6-12个月生存率的最小二乘均值分别为94.52+或-0.63、93.52+或-0.67和92.46+或-0.80%。产羔的时间和季节对断奶前存活率有显着影响(P <0.05 / P <0.01)。断奶后的生存能力通常受产羔的时间和季节的影响(P <0.01)。羔羊的性别对生存能力没有重要影响,除了6-12个月的生存能力。

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