The effect of weaning pigs at different ages on some aspects of the performance of the weanlings and of their dams [microform]
| Главный автор: | |
|---|---|
| Формат: | Visual Material |
| Язык: | English |
| Опубликовано: |
Quezon City
Photoduplication Service. University of the Philippines Library
1977.
|
| Предметы: |