1Wuliji T, Dodds K G, Land J T J, et al. Selection for ultrafine Merino sheep in New Zealand: heretability, phenotypic and genectic correlations of live weight, fleece weighta and wool characteristics in yearlings[J]. Anita Sci, 2001, 72: 241-250.
2Wuliji T, Dodds K G, Land J T J, et al. Response to selection for ultrafine Merino sheep in New Zealand. Ⅰ.Wool production and wool characteristics of ultrafine fibre diameter selected and control Merino yearlings[J]. Livest Prod Sci, 1999, 58: 33-44.
3Adams N R, Cronje P B. A review if the biology linking fiber diameter with fleece weight, liveweight, and reproduction in Merino sheep[J]. Aust J Agric Res, 2003, 54: 1-10.
4Ian Purvis, CSIRO, future of wool industry is ultrafine[J]. Farming Ahead, 2004, 149.
5Kuchel R C. Lindsay D R. Reproduction, fertility and development [C]. Australia: CSIRO Publishing CoIlingwood, 1999. 11(7-8): 391-394.
