2009, Volume 11, Issue 5
Strategic Study of CAE >> 2009, Volume 11, Issue 5
Study on germplasm characteristics and its application of poll dorset sheep
Gansu Agricultural University, Lanzhou 730070, China
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Abstract
In early 2000, 41 of Poll Dorset sheep were introduced from New Zealand into Yongchang mutton sheep breeding farm, which is located at the Hexi Corridor in Gansu Province,China. The introduced sheep were mainly rearing in confinement, and the grazing was used as assistant. After the systematic study of the introduced sheep, such as behavior, physiological and biochemical index, growth and development, reproductive performance, polymorphic loci of blood protein gene and gene type frequency, and disease resistance, the results indicate that the introduced Poll Dorset sheep had both good adaptability and germplasm characteristics. By the end of 2008, the total number of 1~3 generation hybrid sheep were more than 200 000 in Yongchang County, and more than 1 300 000 of different generation hybrid sheep were got in Gansu, Ningxia, Qinghai and Henan provinces where were used as spread areas. Significant economic benefits were made. Poll Dorset sheep is one of the main paternal breeds which are using for cultivating the modern mutton sheep breed in Gansu Province.
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References
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