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| Giachetto,Poliana Fernanda; Riedel,Eduardo Correa; Gabriel,Jane Eyre; Ferro,Maria Inês Tiraboschi; Di Mauro,Sônia Marli Zingaretti; Macari,Marcos; Ferro,Jesus Aparecido. |
| The hepatic expression and plasma concentrations of IGF-I were investigated in three broiler chicken strains selected for different growth rates (HP-Hubbard-Pettersen, a fast growing strain; NN-Naked-neck, a strain with an intermediate growth rate and a heterozygous genotype, and C-Caipira, a slow growing crossbred strain). The chickens were studied at 1, 21 and 42 days of age and had free access to food throughout the study. Hepatic IGF-I mRNA expression was assessed by dot blot analysis using a randomly labeled chicken IGF-I cDNA as the probe and plasma IGF-I concentrations were assayed by radioimmunoassay. The hepatic levels of IGF-I mRNA increased from 1 to 21 days of age in all strains, with NN chickens showing a higher (p < 0.05) IGF-I expression... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: IGF-I mRNA; Broiler chicken; Growth performance; Plasma IGF-I. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000100007 |
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