White Tianzhu yak
The white Tianzhu yak is a breed of domestic yak . Since the targeted breeding of the yak is not yet very advanced, yak breeds generally have less breed-typical characteristics than was the case, for example, with European land cattle breeds in the middle of the 19th century. Therefore, phenotypic differences in the house yak are mainly due to the geographical separation of widely spaced locations. The white Tianzhu yak is one of these geographical yak races in China. She is drawn in Tianzhu . This region is a typical yak holding area with a predominantly Tibetan population. The growing season in this area lasts only 120 days and the average annual temperature is 0 ° C. Because of its adaptation to the extreme climatic conditions, the yak is of great economic importance here. It is kept on the traditional pastures all year round.
White yaks have been bred in this area for a long time as the white wool and pelts were paid more than the usual brown yak wool. Since the founding of the People's Republic of China, the breeding of the white Tainzhu yak has been subsidized by the state. A coordination group has existed since 1991, which develops special breeding plans in order to increase the still low level of performance. Bulls usually have a height at the withers of 120 centimeters and are therefore significantly smaller than wild yaks.
supporting documents
literature
- Jürgen Lensch, Peter Schley and Rong-Chang Zhang (eds.): The Yak (Bos grunniens) in Central Asia , Gießener Abhandlungen zur Agrar- und Wirtschaftsforschung der European East, Volume 205, Berlin 1996, ISBN 3-428-08443-8
Single receipts
- ↑ Lensch et al., P. 94 to p. 97