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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 Colton, S.
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|a The effects of environmental enrichment devices on feather picking in commercially housed Pekin ducks
|h artículo de revista
|c / G.S. Fraley.
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| 650 |
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|a AVICULTURA
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| 650 |
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|a SALUD ANIMAL
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| 650 |
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|a PATOS
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| 700 |
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|a Fraley, G.S.
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|t Poultry science. --
|g Vol. 93, no.9 (Set. 2014), p.2143-2150
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| 852 |
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|a Biblioteca Joaquín García Monge. Hemeroteca
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