(1) Effects of vitamin A supplementation on reproduction of ewes grazed on green and dry summer ranges.
Subtitle: (2) The effects of vitamin B₁₂ on the growing pig.
Published: 1949
Language: eng
Number of pages: 44
Subjects: Animal nutrition.; Ewes -- Feeding and feeds.; Swine -- Feeding and feeds.; Vitamins.
Other titles: Effect of vitamin B₁₂ on the growing pig.
Notes: Thesis (Ph. D. in Animal Science)--Washington State University.

Bibliography: leaves 42-44.