Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-07T23:57:45.854Z Has data issue: false hasContentIssue false
  • English
  • Français

A note on the breeding season of Lincoln ewes at Bahia Blanca, Argentina

Published online by Cambridge University Press:  02 September 2010

R. M. Rodriguez Iglesias ,
C. Giglioli  and
H. Irazoqui
R. M. Rodriguez Iglesias
Affiliation:
Departmento de Agronomía, Universidad Nacional del Sur, Bahía Blanca (8000), Argentina
C. Giglioli
Affiliation:
Departmento de Agronomía, Universidad Nacional del Sur, Bahía Blanca (8000), Argentina
H. Irazoqui
Affiliation:
Departmento de Agronomía, Universidad Nacional del Sur, Bahía Blanca (8000), Argentina
Get access

Abstract

Days elapsed from the mid point of the anoestrous period to first (DF) and last (DL) oestrus of the breeding season and duration of this breeding season (DD) within a flock of 60 adult Lincoln ewes are reported in this note. All traits showed considerable variation and the phenotypic correlation between DF and DD was −0·57 (P < 0·01) while that between DL and DD was 0·87 (P < 0·01). However, DF was not correlated with DL (P = 0·10).

Type
Research Article
Information
Animal Production , Volume 47 , Issue 1 , August 1988 , pp. 161 - 163
Copyright
Copyright © British Society of Animal Science 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Gilmour, A. R. 1985. REG: a generalized linear models program. Miscellaneous Bulletin, Department of Agriculture, New South Wales, Australia, No. 1.Google Scholar
Hanrahan, J. P. and Quirke, J. F. 1986. Breeding season and multiple births in small ruminants. Proceedings of 3rd World Congress on Genetics Applied to Livestock Production, Lincoln, Nebraska, Vol. XII, pp. 30–45.Google Scholar
Nelder, J. A. and Wedderburn, R. W. M. 1972. Generalized linear models. Journal of the Royal Statistical Society A 135: 370–384.CrossRefGoogle Scholar
Quirke, J. F., Hanrahan, J. P., Loughnane, W. and Triggs, R. 1986. Components of the breeding and non-breeding seasons in sheep: breed effects and repeatability. Irish Journal of Agricultural Research 25: 167–172.Google Scholar
Rodriguez Iglesias, R. M., Giglioli, C., Latimori, N. and Irazoqui, H. 1987. Ovulation rate of Lincoln ewes at Bahia Blanca, Argentina. Animal Production 45: 459–464.Google Scholar