| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Effects of rapeseed meal-glucosinolates on thyroid metabolism and feed utilization in rainbow trout
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| Autores: |
Burel, Christine
Boujard, Thierry
Kaushik, Sadasivam
Boeuf, Gilles
Mol, K
Van Der Geyten, S
Darras, V
Kuhn, E
Pradet Balade, B
Querat, B
Quinsac, A
Krouti, M
Ribaillier, D
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| Data: |
2001-12
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| Ano: |
2001
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| Palavras-chave: |
Rainbow trout
Iodine
TSH
Deiodinase activity
Thyroid function
Growth
Glucosinolates
Rapeseed
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| Resumo: |
Two rapeseed meals (RM1 and RM2), containing glucosinolates at a concentration of 26 and 40 mumol/g, respectively, were incorporated at increasing levels (10, 20, and 30% for RM1 and 30 and 50% for RM2) in diets of juvenile rainbow trout. Disturbances in the thyroid axis appeared after 14 days of feeding (with a dietary incorporation level of 10%). The dietary supplementation with T-3 or iodine induced an increase in plasma T-3 levels, compared to that in fish fed the RM diets, and reduced the deleterious effect of RM on growth. When trout were reared in seawater, there was also a slight increase in thyroid hormone levels. TSH treatment had no effect on the thyroid hormone plasma levels. The incorporation of 30% of RM1, which induced a lower dietary content of toxic compounds than RM2, led to a rapid decrease of plasma T-4 and T-3 levels, but growth was affected only after 6 months of feeding. During these studies, the deiodinase activities responded in a complex manner to restore plasma and tissue levels of T-3.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/2001/publication-677.pdf
DOI:10.1006/gcen.2001.7723
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| Editor: |
Elsevier
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| Relação: |
http://archimer.ifremer.fr/doc/00000/677/
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| Formato: |
application/pdf
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| Fonte: |
General and Comparative Endocrinology (0016-6480) (Elsevier), 2001-12 , Vol. 124 , N. 3 , P. 343-358
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| Direitos: |
2001 Elsevier Science (USA). All rights reserved
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