Study of the litter size in crosses between divergently selected lines of mice

Authors

  • Yolanda Bayón González Universidad de León
  • Fermín San Primitivo Tirados Universidad de León
  • Luis Fernando de la Fuente Crespo Universidad de Oviedo

DOI:

https://doi.org/10.18002/analesdeveterinaria.v35.7886

Keywords:

Litter size, crosses, mice

Abstract

A study of litter size traits in crosses between divergently selected lines of mice was performed. Two lines had been selected for increased (W+) and decreased (W¿) 6-week body weight. Two lines had been selected for large (L+) and small (L¿) size of the first three litters. Direct and maternal genetic effects, as well as heterosis were analyzed for the traits first litter size and size of the first three litters (TN-3). Results indicate that additive and non-additive genetic effects estimated for the trait TN-3 are in agreement with those usually obtained for first litter size.

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Published

1989-01-02

Issue

Section

Research papers