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A note on growth curves of rabbit lines selected on growth rate or litter size

Published online by Cambridge University Press:  02 September 2010

A. Blasco  and
E. Gómez
A. Blasco
Affiliation:
Departamento de Ciencia Animal, Universidad Politécnica de Valencia, PO Box 22012, Valencia 46071, Spain
E. Gómez
Affiliation:
Departamento de Ciencia Animal, Universidad Politécnica de Valencia, PO Box 22012, Valencia 46071, Spain
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Abstract

Two synthetic lines of rabbits were used in the experiment. Line V, selected on litter size, and line R, selected on growth rate. Ninety-six animals were randomly collected from 48 litters, taking a male and a female each time. Richards and Gompertz growth curves were fitted. Sexual dimorphism appeared in the line V but not in the R. Values for b and k were similar in all curves. Maximum growth rate took place in weeks 7 to 8. A break due to weaning could be observed in weeks 4 to 5. Although there is a remarkable similarity of the values of all the parameters using data from the first 20 weeks only, the higher standard errors on adult weight would make 30 weeks the preferable time to take data for live-weight growth curves.

Keywords

growth curvesrabbits
Type
Research Article
Information
Animal Production , Volume 57 , Issue 2 , October 1993 , pp. 332 - 334
Copyright
Copyright © British Society of Animal Science 1993

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