That's Life
This book will be of great value to biologists, cat breeders, and researchers.
The findings of a decade of further investigation into the genetics of dog breeding have been incorporated into this new edition of a classic source of information for breeders.
The subjects were pre-trained for one day to avoid an electric shock by entering the goal box through an open door within 30 sec. On days 2 to 4 the rats were given 20 trials per day with the doors presenting a ...
Genetics for Cat Breeders