不同饲养方式对藏羔羊生长发育的影响

Effects of Different Feeding Methods on Growth and Development of Tibetan lambs

为了研究不同饲养方式对藏羔羊生长发育的影响,本试验对120只藏羔羊初生至12月龄体重、体尺测量数据进行了分析。结果表明:藏羔羊生长发育速度随月龄、季节的变化而变化。试验组羔羊初生到12月龄生长发育呈持续增长的态势。6月龄前生长发育迅速,6月龄平均体重由初生3.76 kg增长到24.43 kg,各项体尺数据均极显著高于对照组(P<0.01)。对照组藏羔羊9～10月龄开始体重因牧草质量下降、营养供给不足出现负增长,而体高、体长均增长缓慢。因此,在甘南藏羊的生产中应大力推广暖季放牧+冷季(放牧+补饲)饲养方式。

In order to explore the effects of different feeding methods on the growth and development of Tibetan lambs,this experiment analyzed the body weight and body size measurements of 120 Tibetan lambs from birth to 12 months.The results showed that the growth and development rate of Tibetan lambs varied with age and season.The growth and development of the lambs in the experimental group from birth to 12 months of age showed a continuous increase.The weight of sheep before 6 months of age increased rapidly.The average body weight at 6 months increased from 3.76 kg to 24.43 kg,and the body size data were significantly higher than the control group (P<0.01).In the control group,the weight of the pasture at 9-10 months began to decrease due to the decline in the quality of the forage and the lack of nutrient supply,while the body height and body length increased slowly.Therefore,in the production of Gannan Tibetan sheep,the warm season grazing + cold season (grazing + supplementary feeding) feeding methods should be vigorously promoted.