Differential sensitivity of climate conditions on birth weight genetic values in mice divergently selected for birth weight residual variance.

Abstract excerpt

After 32 generations of a divergent selection experiment for residual variance of birth weight in mice, two divergent lines were thus obtained: the heterogeneous line (H-line) and the homogeneous line (L-line). Throughout the generations, differences were observed between the two lines in traits such as litter size, survival at weaning, and birth weight variability caused by unidentified environmental conditions....

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