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| Provedor de dados: |
OceanDocs
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| País: |
Belgium
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| Título: |
Evaluación nutricional de ensilajes de residuos pesqueros para la alimentación de tilapias rojas (Oreochromis mossambicus x O. niloticus)
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| Autores: |
Llanes, J. E.
Toledo, J.
Savón, L.
Gutiérrez, O.
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| Data: |
2013-03-12
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| Ano: |
2011
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| Palavras-chave: |
Digestibility
Fish silage
Fish wastes
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| Resumo: |
Se determinó la composición química de ensilajes químico y biológico de residuos del fileteado de tilapias, así como la digestibilidad in vitro en tilapias rojas (Oreochromis mossambicus x O. niloticus) mediante modelos de clasificación simple con tres repeticiones. Un total de 270 peces (45,43 ± 8,35 g de peso promedio) se distribuyeron en tres tratamientos (una dieta de referencia y dos experimentales con cada ensilaje de pescado); se usó óxido crómico como indicador y las heces se recolectaron por un sifón desde el fondo de los tanques. Los valores de pH fueron menores que 4,3 para ambos ensilajes, la composición química mostró altos contenidos de proteína bruta con una calidad acorde con los requerimientos de la tilapia del Nilo (Oreochromis niloticus). La digestibilidad in vivo reveló que algunos nutrientes difirieron en función del tipo de ensilaje, entre tanto la proteína fue mayor para el ensilaje químico (89,9 %) y la materia seca, calcio y fósforo para el biológico. No se encontraron diferencias (p > 0,05) para la grasa, energía y cenizas. Se concluyó que los ensilajes de residuos pesqueros presentaron un valor nutricional alto, los que constituyen fuentes de proteína alternativa en la formulación de raciones para tilapias.
The chemical composition of tilapias filleted wastes chemical and biological silage, as well as digestibility in vitro in red tilapia (Oreochromis mossambicus x O. niloticus), according simple classification model with three repetitions were determined. A total of 270 fish (45,43 ± 8,35 g of average weight) distributed in three treatment (a referent diet and two experimental diets with each fish silage); the chromic oxide was used as an inert indicator and faecal sample were recollected by siphoning from the bottom of tanks. The pH value were lower that 4,3 for both silage, the chemical composition showed high of crude protein content with the required quality for tilapia of Nilo (Oreochromis niloticus). The nutrients digestibility differed from one silage type to another; meanwhile protein was bigger for the chemical silage (89,9 %); and the dry matter, phosphorus and calcius for the biological one. Similar digestibility (p > 0,05) was presented for the fat, energy and ash. As a result, the fishing waste silages presented high nutritional value, that they constitute an alternative- protein source in the formulation of rations in tilapia.
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| Tipo: |
Journal Contribution
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| Idioma: |
Espanhol
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| Identificador: |
Revista cubana de investigaciones pesqueras, 28 (2), p. 15-20
0138-8452
http://hdl.handle.net/1834/4652
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| Relação: |
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| Direitos: |
http://creativecommons.org/licenses/by-nc/3.0/
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