The Effects of Inbreeding and Crossbreeding on Guinea Pigs, Vol. 3: Crosses Between Highly Inbred Families (Classic Reprint) - Hardcover

Name: The Effects of Inbreeding and Crossbreeding on Guinea Pigs, Vol. 3: Crosses Between Highly Inbred Families (Classic Reprint)
Author: Sewall Wright
ISBN: 9780265842478

Sewall Wright

9780265842478: The Effects of Inbreeding and Crossbreeding on Guinea Pigs, Vol. 3: Crosses Between Highly Inbred Families (Classic Reprint)

Hardcover

ISBN 10: 0265842476 ISBN 13: 9780265842478

Publisher: Forgotten Books, 2018

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Crossbreeding highly inbred guinea pig lines can reveal the hidden powers of genetic mixing.

This study examines how crossing inbred families changes survival, growth, and other traits, across several experimental designs and generations.

The work centers on five inbred families and a series of crosses and backcrosses, comparing pure inbreeding, first-generation crosses, and renewed inbreeding. It shows how crossbred offspring often perform as well as or better than their inbred parents, sometimes surpassing random-bred stock in key measures.

Different breeding setups (inbred, crossbred, and mixed generations) and what they reveal about fertility, survival, and growth.
How size of litter and parental influence affect birth weight, juvenile survival, and weaning success.
Patterns of coat color and how genetic factors segregate in crosses between families.
Notes on disease resistance, particularly to tuberculosis, and how crossbreeding can influence resilience.

Ideal for readers interested in genetics, breeding, and the history of animal improvement.

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