成都麻羊的生态地理分布及其生态类型

The ecologic geographic distribution and ecological types of Chengdu Ma goats

采用实地调查和生态地理比较等方法,研究成都麻羊的生态地理分布及其生态类型.结果表明,成都麻羊2007年存栏数量30多万只,主要分布在东经102°15′～104°30′,北纬30°15′～31°40′范围的生态地区.成都麻羊有两个生态类型,即丘陵型和山地型.两个生态类型的成都麻羊分布地区的自然生态条件、体格大小和生产性能等均有较大差异.丘陵型成都麻羊体格较大,体尺体重、产肉性能和繁殖性能均高于山地型成都麻羊.对两个生态类型的成都麻羊,均需要提高饲养水平和加强本品种选育,进一步提高产肉性能.

In this article, field investigation and ecologic geography are carried out to research the ecologic geographic distribution and ecological types of Chengdu Ma goats. The result shows a total of over 300,000 head of the goat by the end of 2007, mainly distribute in the ecological region of eastern longitude 102°15′- 104°30′and northern latitude 30° 15′- 31°40′. It also indicates that two ecological types ofChengdu Ma goats exist, the differrence of which is fully elaborated in the following article, as well as the importance of the feeding level improvement and breed selection as to enhancing its meat productivity.