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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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|a H 636.5
|b P875p
|2 21
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|a Dávila, S. G.
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|a Effect of the presence of hens on roosters sperm variables
|h artículo de revista
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|a ESPERMATOZOIDES
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| 650 |
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|a GALLINAS
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| 650 |
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|a GALLOS
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| 773 |
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|t Poultry science. --
|g Volumen 94, número 7 (july 2015), páginas 1645-1649
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| 852 |
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|a Biblioteca Joaquín García Monge. Hemeroteca
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| 856 |
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|u http://ps.oxfordjournals.org.una.idm.oclc.org/content/94/7/1645.full
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