A study on the use of artificial insemination, sperm count, volume of semen, and length of reproductive life span of some Duroc and Japanese berkshire boars kept by the Bureau of Animal Industry [microform]
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| Formato: | Visual Material |
| Lenguaje: | inglés |
| Publicado: |
Quezon City
Photoduplication Service, University of the Philippines Library
1974.
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