METABOLIC UTILIZATION OF DIETS BY POLYPLOID RAINBOW-TROUT (SALMO-GAIRDNERI)

• Type: Article in International Scientific Journal
• Date: 1987

Authors

OLIVATELES, A (Author) FCUP; KAUSHIK, SJ (Author) Other

Journal

Title: Comparative Biochemistry and Physiology, A: Comparative Physiology

Vol. 88

Pages: 45-47

ISSN: 0300-9629

Publisher: Elsevier B.V.

Indexing

ISI Web of Knowledge - 22 Citations

Scopus - 23 Citations

Scientific classification

FOS: Medical and Health sciences > Basic medicine

Other information

Authenticus ID: P-001-VDH

DOI: 10.1016/0300-9629(87)90096-x

Abstract (EN): 1. 1. Nitrogen (NH4) excretion and oxygen consumption were measured in four groups of juvenile rainbow trout (36-40 g): triploids obtained by a heat shock treatment (3n); triploids obtained by mating diploid females with tetraploid males (3n/4n); tetraploids (4n) and a diploid control (2n). 2. 2. No differences in daily N excretion patterns and in N excretion rate measured as a percentage of N intake were detected between groups. 3. 3. Oxygen consumption of the 2n group was significantly inferior to that of the 3n and 4n groups but not to the 3n/4n group. 4. 4. SDA, specific dynamic action (measured as a percentage of the energy intake), ranged from 5.6 to 8.6% and was not different between groups. 5. 5. Protein energy catabolism measured as per cent of total energy expenditure was significantly higher in the 2n group than in polyploid groups. © 1987.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 3