Title page for ETD etd-07072010-020259

Type of Document Master's Thesis
Author Benoff, Fred Harold
URN etd-07072010-020259
Title Behavior-genetic analyses in Japanese quail chicks.
Degree Master of Science
Department Poultry Science
Advisory Committee
Advisor Name Title
Siegel, Paul B. Committee Chair
Beane, W. L. Committee Member
Van Krey, H. P. Committee Member
Young, Roderick W. Committee Member
  • Behavior genetics
Date of Defense 1975-05-06
Availability restricted
The investigation reported here involved an analysis of some of the biological factors affecting tonic immobility in young Japanese quail. Both duration and incidence of tonic immobility were measured on each bird at six days and again at 12 days of age.

A significant line effect was found at both ages, and rankings of these lines for duration and incidence followed a similar pattern. Number of inductions and duration of immobility were inversely related, while the percentage incidence was positively associated with duration of immobility. A large maternal effect found at six days of age disappeared by 12 days of age. Additive genic effects were low to moderate which is indicative that tonic immobility is associated with fitness.

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