Genotypic expression at different ages: II. Wool traits of sheep

Journal of Animal Science

Volumn 77, Issue 9, 1999, Pages 2366-2371

  Okut, H ^a,c   Bromley, C M ^a   Van Vleck, L D ^a   Snowder, G D ^b  

^a UNIVERSITY OF NEBRASKA LINCOLN   (United States)

^b USDA ARS US Sheep Experiment Station   (United States)

^c YUZUNCU YIL UNIVERSITY   (Turkey)

Author keywords

Breeds; Genetics; Genotypes

Indexed keywords

ANIMALIA; OVIS; OVIS ARIES;

AGING; ANALYSIS OF VARIANCE; ANIMAL; ARTICLE; GENE EXPRESSION REGULATION; GENETICS; GENOTYPE; GROWTH, DEVELOPMENT AND AGING; QUANTITATIVE TRAIT; SHEEP; STANDARD; WOOL;

AGING; ANALYSIS OF VARIANCE; ANIMALS; GENE EXPRESSION REGULATION, DEVELOPMENTAL; GENOTYPE; QUANTITATIVE TRAIT, HERITABLE; SHEEP; WOOL;

EID: 0033192882     PISSN: 00218812     EISSN: None     Source Type: Journal    
DOI: 10.2527/1999.7792366x     Document Type: Article

References (19)

1. Atkins, K. D. 1990. Incorporating parameters for lifetime productivity into breeding objectives for sheep. Proc. 4th World Congr. Genet. Appl. Livest. Prod. 15:17-26.
2. Atkins, K. D., and S. I. Mortimer. 1987. The relationship between hogget and adult wool traits in Merino sheep. Proc. 6th Conf. Aust. Assoc. Anim. Breed. Genet. 4:79-82.
3. Boldman, K. G., L. A. Kriese, S. D. Kachman, and L. D. Van Vleck. 1993. A manual for the use of MTDFREML. ARS, USDA, Clay Center, NE.
4. Buttazzoni, L., and I. L. Mao. 1989. Genetic parameters of estimated net energy efficiencies for milk production, and body weight change in dairy cows. J. Dairy Sci. 72:671-677.
5. 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. Proc. 6th World Congr. Genet. Appl. Livest. Prod. Vol. 24:31-34.
6. 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.
7. Falconer, D. S. 1952. The problem of environment and selection. Am. Nat. 86:293-298.
8. Fogarty, N. M. 1995. Genetic parameters for live weight, fat and muscle measurements, wool production and reproduction in sheep: A review. Anim. Breed. Abstr. 63:101-143.
9. Graser, H.-U., S. P. Smith, and B. Tier. 1987. A derivative-free approach for estimating variance components in animal models by restricted maximum likelihood. J. Anim. Sci. 64:1362-1370.
10. Iman, N. Y., C. L. Johnson, W. C. Russell, and R. H. Stobart. 1992. Estimation of genetic parameters for wool fiber diameter measures. J. Anim. Sci. 70:1110-1115.
11. Keeton, L. L., R. D. Green, B. L. Golden, and K. J. Anderson. 1996. Estimation of variance components and prediction of breeding values for scrotal circumference and weaning weight in Limousin cattle. J. Anim. Sci. 74:31-36.
12. Lin, Y. C., and A. J. Lee. 1986. Sequential estimation of genetic and phenotypic parameters in multivariate mixed model analyses. J. Dairy Sci. 69:2696-2703.
13. Notter, D. R., and J. D. Hough. 1997. Genetic parameter estimates for growth and fleece characteristics in Targhee sheep. J. Anim. Sci. 75:1729-1737.
14. Okut, H., C. M. Bromley, L. D. Van Vleck, and G. D. Snowder. 1999. Genotypic expression at different ages: I. Prolificacy traits of sheep. J. Anim. Sci. 77:2357-2365.
15. Robertson, A. 1959. The sampling variance of the genetic correlation coefficient. Biometrics 15:469-485.
16. 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.
17. Satoh, M., A. Nishida, J.A.M. van Arendonk, and T. van der Lende. 1997. Benefit of multiple trait selection to increase reproductive traits: Experimental evidence from golden hamsters. J. Anim. Sci. 75:3103-3113.
18. Smith, S. P., and H.-U. Graser. 1986. Estimating variance components in a class of mixed models by restricted maximum likelihood. J. Dairy Sci. 69:1156-1165.
19. van Zyl, C. M. 1998. Genetic parameters of growth, reproduction and wool traits in Columbia, Polypay, Rambouillet and Targhee breeds. In: Ph.D. dissertation. Univ. of Nebraska, Lincoln.