Selection for ultrafine Merino sheep in New Zealand: Heritability, phenotypic and genetic correlations of live weight, fleece weight and wool characteristics in yearlings

Animal Science

Volumn 72, Issue 2, 2001, Pages 241-250

  Wuliji, T ^a,b   Dodds, K G ^a   Land, J T J ^a   Andrews, R N ^a   Turner, P R ^a  

^a INVERMAY AGRICULTURAL CENTRE   (New Zealand)

^b LANGSTON UNIVERSITY   (United States)

Author keywords

Fibres; Genetic parameters; Live weight; Merino; Wool

Indexed keywords

EID: 0035588527     PISSN: 13577298     EISSN: None     Source Type: Journal    
DOI: 10.1017/s1357729800055739     Document Type: Article

References (54)

1. Analla, M. and Serradilla, J. M. 1998. Estimation of correlations between ewe litter size and maternal effects on lamb weights in Merino sheep. Genetics, Selection, Evolution 30: 493-501.
2. Atkins, K. D. and Casey, A. E. 1992. Improving the efficiency of sire selection on studs. Report DAN 17, Australian Wool Corporation.
3. Barlow, R. 1974. Selection for clean fleece weight in Merino sheep. II. Correlated responses to selection. Australian Journal of Agricultural Research 25: 973-994.
4. Beattie, A. W. 1962. Relationship among productive characters of Merino sheep in north-western Queensland. 2. Estimates of genetic parameters, with particular reference to selection for wool weight and crimp frequency. Queensland Journal of Agricultural Science 19: 17-26.
5. Brash, L. D., Taylor, P. J. and Gilmour, A. R. 1997. Estimates of genetic parameters and environmental effects for production traits in young Merino rams. Proceedings of the Association for the Advancement of Animal Breeding and Genetics 12: 529-533.
6. Brown, G. H. and Turner, H. N. 1968. Response to selection in Australian Merino sheep. II. Estimates of phenotypic and genetic parameters for some production traits in Merino ewes and an analysis of the possible effects of selection on them. Australian Journal of Agricultural Research 19: 303-322.
7. Coelli, K. A. and Atkins, K. D. 1995. Fleece weight and fibre diameter relationships within and between Merino flocks. Proceedings of the Australian Association of Animal Breeding and Genetics 11: 587-590.
8. Davis, G. P. and McGuirk, B. J. 1987. Genetic relationship between clean wool weight, its components and related skin characters. In Proceedings of a national symposium: Merino improvement programs in Australia (ed. B. J. McGuirk), pp. 189-206. Australian Wool Corporation.
9. Delport, G. J. and Botha, A. F. 1994. Reducing fibre diameter variation and coarse edge in Dohne Merinos - preliminary results. Proceedings of the fifth world congress on genetics applied to livestock production, Guelph, vol. 19, pp. 417-420.
10. Fogarty, N. M. 1995. Genetic parameters for live weight, fat and muscle measurements, wool production and reproduction in sheep: a review. Animal Breeding Abstracts 63: 101-143.
11. Garnsworthy, R. K., Gully, R. L., Kandaih, R. P., Kenins, P., Mayfield, R. J. and Westerman, R. A. 1988. Understanding the causes of prickle and skin itch from skin contact of fabrics. Australian Textiles 8: 26-29.
12. Gifford, D. R., Ponzoni, R. W., Ancell, P. M. C., Hynd, P. I., Walkley, J. R. W. and Crimson, R. J. 1995. Genetic studies on wool quality and skin characters of the Merino. Wool Technology and Sheep Breeding 43: 24-29.
13. Gilmour, A. R. 1997. ASREML for testing fixed effects and estimating multiple trait variance components. Proceedings of the Association for the Advancement of Animal Breeding and Genetics 12: 386-390.
14. Greef, J. C., Lewer, R. P., Ponzoni, R. W. and Purvis, I. 1995. Staple strength: progress towards elucidating its place in Merino breeding. Proceedings of the Association for the Advancement of Animal Breeding and Genetics 11: 595-599.
15. Gregory, I. P. 1982a. Genetic studies of South Australian Merinos. III. Heritabilities of various wool and body traits. Australian Journal of Agricultural Research 33: 355-362.
16. Gregory, I. P. 1982b. Genetic studies of South Australian Merinos. IV. Genetic, phenotypic and environmental correlations between various wool and body traits. Australian Journal of Agricultural Research 33: 363-373.
17. Groot, G. J. J. B. de. 1995. The use of effective fineness to determine the effect of wool-fibre-diameter distribution on yarn properties. Journal of the Textile Institute 86: 33-44.
18. Hickson, J. D., Swan, A. A., Kinghorn, B. P. and Piper, L. R. 1995. Maternal effects at different ages in Merino sheep. Proceedings of the Australian Association of Animal Breeding and Genetics 11: 416-420.
19. Howe, R. R., MacLeod, I. M. and Lewer, R. P. 1991. Genetic parameters for some wool tenderness related traits under different nutrition levels in Merino sheep. Proceedings of the Australian Association of Animal Breeding and Genetics 9: 347-351.
20. James, P. J., Ponzoni, R. W., Walkley, J. R. W. and Whiteley, K. J. 1990. Genetic parameters for wool production and quality traits in South Australian Merinos of the Collinsville family group. Australian Journal of Agricultural Research 41: 583-594.
21. Johnson, D. L. and Thompson, R. 1995. Restricted maximum likelihood estimation of variance components for univariate animal models using sparse matrix techniques and average information. Journal of Dairy Science 78: 449-456.
22. Lax, J. and Jackson, N. 1987. Genetic correlations and their effects on genetic progress in the Merino industry. In Proceedings of a national symposium: Merino improvement programs in Australia (ed. B. J. McGuirk), pp. 207-218. Australian Wool Corporation.
23. Lewer, R. P., Woolaston, R. R. and Howe, R. R. 1994. Studies of Western Australian Merino sheep. II. Genetic and phenotypic parameter estimates for objectively measured traits on ram and ewe hoggets using different model types. Australian Journal of Agricultural Research 45: 829-840.
24. Mayo, O., Crook, B., Lax, J., Swan, A. and Hancock, T. W. 1994. The determination of fibre diameter distribution. Proceedings of the fifth world congress on genetics applied to livestock production, Guelph, vol. 19, pp. 413-416.
25. Meuwissen, T. H. E. and Kanis, E. 1988. Application of bending theory in a pig-breeding situation. Livestock Production Science 18: 85-91.
26. Morley, F. H. W. 1955. Selection for economic characters in Australian Merino sheep. V. Further estimates of phenotypic and genetic parameters. Australian Journal of Agricultural Research 6: 77-90.
27. Mortimer, S. I. 1987. Australian estimates of genetic parameters for wool production and quality traits. In Proceedings of a national symposium: Merino improvement programs in Australia (ed. B. J. McGuirk), pp. 159-173. Australian Wool Corporation.
28. Mortimer, S. I. and Atkins, K. D. 1989. Genetic evaluation of production traits between and within flocks of Merino sheep. I. Hogget fleece weights, body weight and wool quality. Australian Journal of Agricultural Research 40: 433-443.
29. Mortimer, S. I. and Atkins, K. D. 1994. Direct additive and maternal genetic effects on wool production of Merino sheep. Proceedings of the fifth world congress on genetics applied to livestock production, Guelph, vol. 18, pp. 103-106.
30. Mortimer, S. I. and Atkins, K. D. 1995. Maternal effects influence growth traits of Merino sheep. Proceedings of the Australian Association of Animal Breeding and Genetics 11: 421-424.
31. Mullaney, P. D., Brown, G. H., Young, S. S. Y. and Hyland, P. G. 1970. Genetic and phenotypic parameters for wool characteristics in fine-wool Merino, Corriedale, and Polwarth sheep. II. Phenotypic and genetic correlations, heritability and repeatability. Australian Journal of Agricultural Research 21: 527-540.
32. Ponzoni, R. W., Grimson, R. J., Jaensch, K. S., Smith, D. H., Gifford, D. R., Ancell, P. M. C., Walkley, J. R. W. and Hynd, P. I. 1995. The Turretfield sheep breeding project: messages on phenotypic and genetic parameters for South Australian Merino sheep. Proceedings of the Australian Association of Animal Breeding and Genetics 11: 303-313.
33. Purvis, I. W. 1995. Strategies for improving wool quality and productivity in fine and superfine woolled Merino flocks. Proceedings of the Association for the Advancement of Animal Breeding and Genetics 11: 510-515.
34. Rogan, I. M. 1984. Selection for wool production. Proceedings of the second world congress on sheep and beef cattle breeding, pp. 367-380.
35. Rose, M. and Pepper, P. M. 1996. Phenotypic and genetic parameters for production traits of Merino sheep in central western Queensland. Proceedings of the Australian Society of Animal Production 21: 170-172.
36. Snyman, M. A., Olivier, J. J. and Olivier, W. J. 1996. Variance components and genetic parameters for body weight and fleece traits of Merino sheep in an arid environment. South African Journal of Animal Science 26: 11-14.
37. Stram, D. O. and Lee, J. W. 1994. Variance components testing in the longitudinal mixed effects model. Biometrics 50: 1171-1177.
38. Swan, A. A. and Hickson, J. D. 1994. Maternal effects in Australian Merinos. Proceedings of the fifth world congress on genetics applied to livestock production, Guelph, vol. 18, pp. 143-146.
39. Swan, A. A., Lax, J. and Purvis, I. W. 1995. Genetic variation in objectively measured wool traits in CSIRO's fine wool flock. Proceedings of the Australian Association of Animal Breeding and Genetics 11: 516-520.
40. Swan, A. A. and Piper, L. R. 1993. Final report to the Wool Research and Development Corporation, project no. CPB 214, Australia.
41. Taylor, P. J., Gilmour, A. R., Crowe, D. W., Jackson, N. and Atkins, K. D. 1997. Genetic parameters for objectively measured style traits of Merino fleeces. Proceedings of the Association for the Advancement of Animal Breeding and Genetics 12: 149-152.
42. Turner, H. N. 1977. Australian sheep breeding research. Animal Breeding Abstracts 45: 9-31.
43. Turner, H. N., Brooker, M. G. and Dolling, C. H. S. 1970. Response to selection in Australian Merino sheep. III. Single character selection for high and low values of wool weight and its components. Australian Journal of Agricultural Research 21: 955-984.
44. Vaez Torshizi, R., Nicholas, F. W. and Raadsma, H. W. 1996. REML estimates of variance and covariance components for production traits in Australian Merino sheep, using an animal model. 1. Body weight from from birth to 22 months. Australian Journal of Agricultural Research 47: 1235-1249.
45. Vaez Torshizi, R., Raadsma, H. W. and Nicholas, F. W. 1995. An investigation of the potential for early (indirect) selection in Australian Merino sheep. Proceedings of the Australian Association of Animal Breeding and Genetics 11: 314-316.
46. Walkley, J. R. W., Ponzoni, R. W. and Dolling, C. H. S. 1987. Phenotypic and genetic parameters for lamb and hogget traits in flock of South Australian Merino sheep. Australian Journal of Agricultural Research 27: 205-210.
47. Watson, N., Jackson, N. and Whiteley, K. J. 1977. Inheritance of the resistance to compression property of Australian Merino wool and its genetic correlation with follicle curvature and various wool and body characters. Australian Journal of Agricultural Research 28: 1083-1094.
48. Whiteley, K. J. 1987. Wool processing. Wool Technology and Sheep Breeding 36: 109-113.
49. Whiteley, K. J. and Jackson, N. 1982. Breeding for apparel wool. Proceedings of the first world congress on sheep and beef cattle breeding, vol. 1, pp. 47-55.
50. Wuliji, T., Dodds, K. G., Land, J. T. J., Andrews, R. N. and Turner, P. R. 1999. 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. Livestock Production Science 58: 33-44.
51. Wuliji, T., Endo, T., Land, J. T. J., Andrews, R. N., Dodds, K. G. and Turner, P. R. 1995. Evaluation of New Zealand low and high crimp Merino wools. II. Wool characteristics and processing performance of knitwear and woven fabrics. Proceedings of the ninth wool textile research conference, vol. 11, pp. 150-158.
52. Wuliji, T., Land, J. T. J., Andrews, R. N. and Dodds, K. G. 1990. Fleece weight and wool characteristics of Merino ewes screened into a superfine selection flock. Proceedings of the New Zealand Society of Animal Production 50: 301-303.
53. Young, S. S. Y., Brown, G. H., Turner, H. N. and Dolling, C. H. S. 1965. Genetic and phenotypic parameters for body weight and greasy fleece weight at weaning in Australian Merino sheep. Australian Journal of Agricultural Research 16: 997-1009.
54. Young, S. S. Y., Turner, H. N. and Dolling, C. H. S. 1960. Comparison of estimates of repeatability and heritability for some production traits in Merino rams and ewes. II. Heritability. Australian Journal of Agricultural Research 11: 604-617.