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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
20/03/2002 |
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Data da última atualização: |
19/07/2018 |
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Autoria: |
COELHO, S. R. de C. |
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Afiliação: |
College of Texas A&M University. |
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Título: |
Effects of environmental salinity and dietary protein levels on digestibility in four species of Penaeid shrimp. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
Texas: College of Texas A&M University, 1984. |
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Páginas: |
66p. |
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Idioma: |
Inglês |
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Notas: |
M. Sc. Thesis. |
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Conteúdo: |
Apparent total dry-matter digestibility and apparent protein digestibility were evaluated in Penaeus aztecus, P. japonicus, P. stylirostris, and P. vannamei for three levels of dietary protein (20%, 33%, and 46% protein) and at four levels of environmental salinity (10, 20, 30, and 40 ppt). Apparent digestibility varied from 10.30% in P. japonicus fed the 20% protein diet at 40 ppt to 60.40% in P. stylirostris fed the 46% protein diet at 30 ppt. Protein digestibility varied from 61.37% in P. japonicus fed the 20% protein diet at 40 ppt to 85.46% in P. stylirostris fed the 46% protein diet at 30 ppt. The apparent digestibility for all species decreased as the environmental salinity increased, but no salinity-related differences were observed for protein digestibility. This suggests that the digestibility of the non-protein portion of the diet decreased with increasing salinity levels. Both apparent digestibility and protein digestibility for all species tended to increase as the dietary protein level increases. The four species different more in apparent digestibility than in protein digestibility when compared at a given salinity-diet combination. In general, for the procedure and conditions used in this study, highest values for both apparent digestibility and protein digestibility, were observed for P. vannamei, with the exception of P. stylirostris fed t6he 46% protein diet at 30 ppt. |
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Palavras-Chave: |
Dieta alimentar; Environmental salinity; Penaeid shrimp. |
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Thesagro: |
Digestibilidade; Meio Ambiente; Nutrição Animal; Peixe; Proteína; Salinidade. |
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Thesaurus Nal: |
dietary protein; digestibility; fish. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02183nam a2200277 a 4500
001 1790621
005 2018-07-19
008 1984 bl uuuu m 00u1 u #d
100 1 $aCOELHO, S. R. de C.
245 $aEffects of environmental salinity and dietary protein levels on digestibility in four species of Penaeid shrimp.
260 $aTexas: College of Texas A&M University$c1984
300 $a66p.
500 $aM. Sc. Thesis.
520 $aApparent total dry-matter digestibility and apparent protein digestibility were evaluated in Penaeus aztecus, P. japonicus, P. stylirostris, and P. vannamei for three levels of dietary protein (20%, 33%, and 46% protein) and at four levels of environmental salinity (10, 20, 30, and 40 ppt). Apparent digestibility varied from 10.30% in P. japonicus fed the 20% protein diet at 40 ppt to 60.40% in P. stylirostris fed the 46% protein diet at 30 ppt. Protein digestibility varied from 61.37% in P. japonicus fed the 20% protein diet at 40 ppt to 85.46% in P. stylirostris fed the 46% protein diet at 30 ppt. The apparent digestibility for all species decreased as the environmental salinity increased, but no salinity-related differences were observed for protein digestibility. This suggests that the digestibility of the non-protein portion of the diet decreased with increasing salinity levels. Both apparent digestibility and protein digestibility for all species tended to increase as the dietary protein level increases. The four species different more in apparent digestibility than in protein digestibility when compared at a given salinity-diet combination. In general, for the procedure and conditions used in this study, highest values for both apparent digestibility and protein digestibility, were observed for P. vannamei, with the exception of P. stylirostris fed t6he 46% protein diet at 30 ppt.
650 $adietary protein
650 $adigestibility
650 $afish
650 $aDigestibilidade
650 $aMeio Ambiente
650 $aNutrição Animal
650 $aPeixe
650 $aProteína
650 $aSalinidade
653 $aDieta alimentar
653 $aEnvironmental salinity
653 $aPenaeid shrimp
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Embrapa Pantanal (CPAP) |
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