Jaitner J, Njie M, Corr N, Dempfle L
International Trypanotolerance Centre, Banjul, The Gambia.
Trop Anim Health Prod. 2006 Apr;38(3):261-6. doi: 10.1007/s11250-006-4364-x.
Goats are important in the low-input systems of West Africa and their main importance lies in their role for income and saving. In addition, it is known that milk offtake for home consumption is also important. In order to obtain information about the real importance of milk offtake, a recording scheme was operated in 27 villages in the Central River Division of The Gambia from July 1998 until January 2000. Detailed information was obtained from about 1500 kiddings. In the recording scheme, any sheep being milked as well as the goats of the International Trypanotolerance Centre nucleus flock were also recorded. In the villages, 36% of all lactations were used for milk offtake, but the fraction milked was lower for the first two lactations. The average length of lactation was 127 days and the average daily milk offtake was 0.18 L. Goats are milked once a day and the residual milk is left for the kids. Milking starts about one week after parturition and stops when the goat becomes pregnant or the kid(s) die or the goat is drying off. The repeatability of the 90-day milk offtake was 0.24 +/- 0.09. Sixty-five percent of goat owner were women and a large fraction of goat owners also owned cattle. Goat milk was used exclusively for home consumption. It is concluded that in breeding and extension work more attention should be given to aspects of milk production.
山羊在西非的低投入养殖系统中很重要,其主要重要性在于它们在创收和储蓄方面所起的作用。此外,家庭消费的羊奶获取也很重要,这是众所周知的。为了获取有关羊奶获取实际重要性的信息,1998年7月至2000年1月在冈比亚中央河区的27个村庄实施了一项记录计划。从大约1500次产羔中获得了详细信息。在该记录计划中,任何被挤奶的绵羊以及国际锥虫耐受中心核心群的山羊也都被记录在内。在这些村庄中,所有泌乳期的36%用于获取羊奶,但前两胎的挤奶比例较低。平均泌乳期为127天,平均每日羊奶获取量为0.18升。山羊每天挤奶一次,剩余的奶留给小羊。挤奶在分娩后约一周开始,当山羊怀孕、小羊死亡或山羊停止产奶时停止。90天羊奶获取量的重复性为0.24±0.09。65%的山羊养殖户为女性,很大一部分山羊养殖户也饲养牛。山羊奶仅用于家庭消费。得出的结论是,在育种和推广工作中应更多地关注产奶方面。