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Dietary histidine requirement of grow-out Nile tilapia (Oreochromis niloticus), based on growth performance, muscle development, expression of muscle-growth-related genes, and blood parameters R. Bras. Zootec.
Zaminhan-Hassemer,Micheli; Michelato,Mariana; Boscolo,Wilson Rogério; Urbich,Allan Vinnícius; Cruz,Thais Pereira da; Almeida,Fernanda Losi Alves de; Furuya,Valéria Rossetto Barriviera; Furuya,Wilson Massamitu.
ABSTRACT This research was conducted to determine optimal dietary histidine requirement of grow-out Nile tilapia, Oreochromis niloticus, based on muscle development, expression of muscle-growth-related genes, and blood parameters. Fish (n = 288, initial body weight of 64.17±0.53 g) were fed extruded diets with graded levels of histidine (4.23, 5.44, 7.17, 8.91, and 11.57 g kg−1), containing approximately 289 g kg−1 crude protein and 3565 kcal kg−1 digestible energy. The study followed a completely randomized design with five treatments and four replicates each, for 65 days. There was a quadratic effect of dietary histidine on final body weight, feed conversion, and net protein utilization, and the best values were optimized at 8.09, 7.88, and 7.33 g kg−1,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amino acids; Aquaculture; Fish nutrition; Genomics.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982020000100201
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