Parameter estimates for greasy fleece weight of Rambouillet sheep at different ages

Journal of Animal Science

Volumn 78, Issue 8, 2000, Pages 2108-2112

  Lee, J W ^a   Waldron, D F ^b   Van Vleck, L D ^c  

^a UNIVERSITY OF NEBRASKA LINCOLN   (United States)

^b TEXAS A AND M UNIVERSITY   (United States)

^c U S MEAT ANIMAL RESEARCH CENTER   (United States)

Author keywords

Genetic Correlations; Genotype Environment Interaction; Heritability

Indexed keywords

ANIMALIA; OVIS ARIES;

AGING; ANIMAL; ARTICLE; BIOLOGICAL MODEL; FEMALE; HAIR; MALE; ORGAN SIZE; PHYSIOLOGY; SHEEP;

AGING; ANIMALS; FEMALE; HAIR; MALE; MODELS, BIOLOGICAL; ORGAN SIZE; SHEEP;

EID: 0034242917     PISSN: 00218812     EISSN: None     Source Type: Journal    
DOI: 10.2527/2000.7882108x     Document Type: Article

References (14)

1. Bassett, J. W., T. C. Cartwright, J. L. Van Horn, and F. S. Willson. 1967 Estimates of genetic and phenotypic parameters of weanling and yearling traits in range Rambouillet ewes. J. Anim. Sci. 26:254-260.
2. Boldman, K. G., L. A. Kriese, L. D. Van Vleck, C. P. Van Tassell, and S. D. Kachman. 1995. A manual for use of MTDFREML. A set of programs to obtain estimates of variances and covariances [DRAFT]. ARS, USDA, Washington, DC.
3. Coelli, K A., A. R. Gilmour, and K. D. Atkins. 1998. Comparison of genetic covariance models for annual measurements of fleece weight and fibre diameter. In: Proc. 6th World Cong. Genet. Appl. to Livestock Prod., Armidale, Australia. 24:31-34.
4. Corbett, J. L. 1979. Variation in wool growth with physiological state. In: J. L. Black and P. J. Reis (ed.) Physiological and Environmental Limitations to Wool Growth. pp 79-98. Univ. New England Pub., Armidale, Australia.
5. Ercanbrack, S. K., and A. D. Knight. 1998. Responses to various selection protocols for lamb production in Rambouillet, Targhee, Columbia, and Polypay sheep. J. Anim. Sci. 76:1311-1325.
6. Falconer, D. S. 1952. The problem of environment and selection. Am. Nat. 86:293-298.
7. Fogarty, N. M. 1995. Genetic parameters for live weight, fat and muscle measurements, wool production and reproduction in sheep: A review. Anim. Breed. Abst. 63:101-143.
8. Okut, H. C. M. Bromley, L. D. Van Vleck, and G. D. Snowder. 1999. Genotypic expression at different ages: II. Wool traits of sheep. J. Anim. Sci. 77:2366-2371.
9. Ray, E. E. and G. M. Sidwell, 1964. Effects of pregnancy, parturition, and lactation upon wool production of range ewes. J. Anim. Sci. 23:989-994.
10. Robertson, A. 1959. The sampling variance of the genetic correlation coefficient. Biometrics. 15:469-485.
11. Saboulard, M., W. C. Russell, and M. L. Riley. 1995. Selection for lambing rate and clean fleece weight in sheep. J. Anim. Sci. 73:3195-3198.
12. Shelton, M., and J. W. Menzies. 1968. Genetic parameters of some performance characteristics of range fine-wool ewes. J. Anim. Sci. 27:1219-1223.
13. Snowder, G. D., and M. Shelton. 1988. The relationship of lamb and wool production in range Rambouillet ewes. Sheep Industry Development Program, Inc. Res. J. 4(3):1-5.
14. Vesely, J. A., H. F. Peters, S. B. Sien, and O. W. Robison. 1970. Heritabilities and genetic correlations in growth and wool traits of Rambouillet and Romnelet sheep. J. Anim. Sci. 30:174-181.