The effect of temperature and ration size on specific dynamic action and production performance in juvenile hapuku (Polyprion oxygeneios)

Aquaculture ◽  
2015 ◽  
Vol 437 ◽  
pp. 67-74 ◽  
Author(s):  
J.R. Khan ◽  
S. Pether ◽  
M. Bruce ◽  
S.P. Walker ◽  
N.A. Herbert
1974 ◽  
Vol 31 (11) ◽  
pp. 1763-1769 ◽  
Author(s):  
F. W. H. Beamish

Oxygen consumption attributable to apparent specific dynamic action (SDA) was measured in relation to feeding level and body weight in largemouth bass, Micropterus salmoides, forced to swim at 1.7 body lengths/s (BL/s). Apparent SDA rose curvilinearly with ration size, the coefficient increasing with weight of bass. For a ration of fixed percent body weight/day, apparent SDA increased curvilinearly with weight of bass, the rate being most pronounced at higher levels of food intake. Apparent SDA expressed in energy units as a percent of ration ingested did not differ significantly with weight of fish or meal size. The overall mean apparent SDA ± SD was 14.19 ± 4.19% of the energy ingested. Time required for oxygen consumption to subside to pre-feeding levels increased with ration size and weight of bass.Over the range of swimming speeds from 1.4 to 2.5 BL/s, there were no differences in apparent SDA of similar size bass fed a ration of 4% body weight/day. Similarly, time for elevated levels of oxygen consumption to return to prefeeding rates was independent of swimming speed.


2004 ◽  
Vol 146 (4) ◽  
pp. 733-738 ◽  
Author(s):  
S. Katsanevakis ◽  
N. Protopapas ◽  
H. Miliou ◽  
G. Verriopoulos

2007 ◽  
Vol 80 (2) ◽  
pp. 178-185 ◽  
Author(s):  
Anders D. Jordan ◽  
John F. Steffensen

1971 ◽  
Vol 28 (3) ◽  
pp. 449-451 ◽  
Author(s):  
J. Savitz

Nitrogen excretion rates increase with an increase in protein consumption levels. A mathematical description of this relation was formulated from the data. Estimates of the effect of specific dynamic action on nitrogen excretion were also calculated.


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