Data/hora: 05/06/2024 05:44:16

Provedor de dados: | 65
País: | Brazil
Título: | Dietary soybean meal on growth and intestinal morphology of South American catfish, Rhamdia quelen, larvae
Autores: | Hernández,David Roque; Santinón,Juan José; Sánchez,Sebastián; Domitrovic,Hugo Alberto.
Data: | 2012-09-01
Ano: | 2012
Palavras-chave: | Larviculture; Experimental diet; Intestine; Morphology; South American catfish.
Resumo: | The effects of the replacement of bread yeast by soybean meal in diets for Rhamdia quelen larvae on growth, survival, and intestinal morphology were analysed. Larvae were fed for 20 days with five diets: a control diet formulated with 57% of bread yeast, and other four diets in which soybean meal at concentrations of 14.25, 28.5, 42.75 and 57% was added to obtain 25, 50, 75 and 100% of bread yeast replacement. Growth and survival parameters were negatively affected by dietary soybean meal inclusion. Larvae fed control diet showed significantly higher mean weight, specific growth rate, final biomass, and survival rate than larvae from other treatments. Enterocyte height and fold width of the posterior intestine showed highest values in the control group, and an inverse linear relationship with the level of dietary soybean meal inclusion was observed, however, in the anterior intestine the morphology parameters were not affected by the diet. These results indicate that inclusion of soybean meal in diets for R. quelen larvae negatively affects growth and survival, as well as the capacity for digestion and absorption of nutrients, mainly in the posterior intestine.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012000900023
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/S0103-84782012000900023
Formato: | text/html
Fonte: | Ciência Rural  v.42 n.9 2012
Fonte: | info:eu-repo/semantics/openAccess