A study on the effects of temperature on the correlated responses between body weight and tail length in mice : a thesis presented in partial fulfilment of the requirements for the degree of Master of Agricultural Science

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Massey University
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Fisher and Wright in the early 1920's were largely responsible for the mathematical theory on which present day population genetics is based. Lush (1945) applied this theory to animal breeding problems. Mendelian theory formed the basis for the genetic theories of populations just as it did for individuals. But now many genes were considered to be associated with the productive characters that were studied and a continuous rather than a discontinuous scale of measurement was used. Up to now a large proportion of animal breeding research has been devoted to the estimation of phenotypic and genetic parameters based on the assumption of additive genetic variance. But many laboratory selection experiments have demonstrated the importance of a wide variety of gene and chromosome interactions which would suggest a more careful evaluation of the additive nature of gene action is needed. Selection theory would suggest that the estimated genetic parameters may not adequately predict selection response over a long term experiment. [FROM INTRODUCTION]
Mice, Temperature -- Physiological effect