Birthcoat: Is it worth taking it into consideration in Merino sheep genetic improvement programs ?

Wool Technology and Sheep Breeding

Volumn 45, Issue 1, 1997, Pages 12-26

  Ponzoni, Raul W ^a   Grimson, R J ^b   Jaensch, K S ^b   Smith, D H ^b   Hynd, P I ^c  

^a SOUTH AUSTRALIAN RESEARCH AND DEVELOPMENT INSTITUTE   (Australia)

^b SOUTH AUSTRALIAN RESEARCH AND DEVELOPMENT INSTITUTE   (Australia)

^c UNIVERSITY OF ADELAIDE   (Australia)

Author keywords

Birthcoat; Genetic improvement; Merino sheep

Indexed keywords

GENETIC MODIFICATION; WOOL, MERINO;

EID: 0030851972     PISSN: 00437875     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (12)

1. Alexander G. (1964). Lamb survival: physiological considerations. Proc. Aust. Soc. Anim. Prod. 5: 113-122.
2. Davies H.L. (1964). Lamb losses in south-western Australia. Proc. Aust. Soc. Anim. Prod. 5: 107-112.
3. Davis G.P. (1987). Genetic relationships between lamb growth and lifetime productivity in Merino sheep. Ph. D. Thesis, The University of New England.
4. Gifford D.R. and Ponzoni R.W. (1993). The Turretfield Merino resource flock. In: Merino genetic resource flocks in Australia, Procs. Ntnl. Workshop, South Australia, pp. 15-20.
5. Gregory I.P. (1982a). Genetic studies of South Australian Merino sheep. III.Heritabilities of various wool and body traits. Aust. J. Agric. Res. 33: 355-362.
6. Gregory I.P. (1982b). Genetic studies of South Australian Merino sheep. IV.Genetic, phenotypic and environmental correlations between various wool and body traits. Aust. J. Agric. Res. 33: 363-373.
7. Hynd P.I., Ponzoni R.W. and Wayte C.L. (1989). The effect of a Woolplan-type selection programme on primary and secondary fibre size and shape. Wool Tech. Sheep Breed. 37: 101-105.
8. Morley F.H.W. (1955). Selection for economic characters in Australian Merino sheep. V. Further estimates of phenotypic and genetic parameters. Aust. J. Agric. Res. 6: 77-90.
9. Mullaney P.D. (1966). The relation of birth coat and lamb survival. Aust. J. Exp. Agric. Anim. Husb. 6: 84-87.
10. Ponzoni R.W., Grimson R.J., Jaensch Kaylene 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. Proc. Aust. Assoc. Anim. Breed. Genet. 11: 303-313.
11. Schinckel P.G. (1955). Inheritance of birthcoats in a strain of Merino sheep. Aust. J. Agric. Res. 6: 595-607.
12. Schinckel P.G. (1958). The relationship of lamb birthcoat to adult fleece structure in a strain of Merino sheep. Aust. J. Agric. Res. 9: 567-578.