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A new approach to feed frequency studies and protein intake regulation in juvenile pirarucu Anais da ABC (AABC)
MATTOS,BRUNO O. DE; NASCIMENTO FILHO,EDUARDO C.T.; SANTOS,ALINE A.; BARRETO,KAYCK A.; SÁNCHEZ-VÁZQUEZ,FRANCISCO J.; FORTES-SILVA,RODRIGO.
ABSTRACT This study aimed to investigate pirarucu's (Arapaima gigas) ability to trigger a self-feeding system to regulate protein intake between two standard diets that contained 39% and 49% of crude protein. The same system allowed the evaluation of daily feeding and locomotor activity rhythms. Eighteen fish (654.44±26.85g) were distributed into six 250 L tanks (3 fish/tank). Fish had free access to both diets (39% vs. 49% protein) by feeders (2 per tank), adapted to be activated by fish themselves. This system was connected to a computer system. After an adaptation period, fish learned to activate feeders and the mean food intake recorded was 2.14% of their body weight on a daily basis. Fish showed feeding (72.48%) and locomotor (72.49%) activity...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arapaima gigas; Feeding behavior; Protein intake; Self-feeding.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301243
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Metabolic responses to dietary carbohydrate/lipids ratios in neotropical hybrid catfish (♂Pseudoplatystoma corruscans×♀Pseudoplatystoma fasciatum) Anais da ABC (AABC)
OKAMURA,DANIEL; FORTES-SILVA,RODRIGO; PAULINO,RENAN R.; ARAÚJO,FELIPE G. DE; COSTA,DIEGO V. DA; PEREIRA,RAQUEL T.; ROSA,PRISCILA V..
Abstract: The purpose of this study was to assess the effect of different carbohydrate and lipid (CHO/L) ratios on the performance and energy metabolism of hybrid catfish (♂Pseudoplatystoma corruscans × ♀ Pseudoplatystoma fasciatum). One hundred and sixty-eight fish (104.9±16.5 g BW) were distributed into 24 100-L tanks. The experiment was performed using a randomised block design with four CHO/L ratios (0.45, 1.00, 1.66 and 2.85) and six replications. Growth performance, protein content, glucose and triglycerides in plasma, muscle and liver, and the hepatic activity of the malic and glucose-6-phosphate dehydrogenase (G6PD) enzymes were measured after 60 feeding days. No significant differences were observed in growth performance, protein and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enzymes activity; Hepatic function; Intermediary metabolism; Hybrid catfish; Surubim.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700862
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