PMID- 21601001
OWN - NLM
STAT- MEDLINE
DCOM- 20111219
LR  - 20110829
IS  - 1531-4332 (Electronic)
IS  - 1095-6433 (Linking)
VI  - 160
IP  - 3
DP  - 2011 Nov
TI  - The interactive effects of a gradual temperature decrease and long-term food 
      deprivation on cardiac and hepatic blood flows in rainbow trout (Oncorhynchus 
      mykiss).
PG  - 311-9
LID - 10.1016/j.cbpa.2011.04.020 [doi]
AB  - The aim of the present study was to determine the extent to which the fish liver 
      is perfused with blood. Transonic(R) flow probes were therefore implanted around 
      the ventral aorta and hepatic vein(s) to record baseline blood flows in rainbow 
      trout (Oncorhynchus mykiss) previously held under two different feeding regimes 
      (food-deprived or fed to satiation, 8-12 weeks). Fish from both groups were 
      exposed to a gradual temperature decrease (12 degrees C to 5 degrees C) and physical disturbance. 
      Cardiac output (Q), stroke volume (Sv) and hepatic venous blood flow (HVBF) were 
      significantly reduced in food-deprived trout at 12 degrees C. Heart rate was not 
      significantly affected by nutritional status, but was significantly reduced when 
      temperature was decreased to 5 degrees C. Physically disturbing each fish at 12 degrees C and 5 degrees C 
      showed that the performance capacity of the heart was not affected by food 
      deprivation as the capacity to increase Q and Sv was not reduced in the 
      food-deprived group. Overall this study showed that food deprivation in rainbow 
      trout reduced cardiac and hepatic blood flows. However, long-term food 
      deprivation did not affect the capacity of the heart to acutely increase 
      performance.
CI  - Copyright (c) 2011. Published by Elsevier Inc.
FAU - Petersen, L H
AU  - Petersen LH
AD  - University of North Texas, Department of Biology, Institute of Applied Science, 
      Denton, TX 76203, USA.
FAU - Dzialowski, E
AU  - Dzialowski E
FAU - Huggett, D B
AU  - Huggett DB
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20110511
PL  - United States
TA  - Comp Biochem Physiol A Mol Integr Physiol
JT  - Comparative biochemistry and physiology. Part A, Molecular & integrative 
      physiology
JID - 9806096
SB  - IM
MH  - Animals
MH  - Cardiac Output/physiology
MH  - Food Deprivation/*physiology
MH  - Heart/*physiology
MH  - Heart Rate/physiology
MH  - Hemodynamics/physiology
MH  - Hepatic Veins
MH  - Liver/*blood supply
MH  - Oncorhynchus mykiss/*physiology
MH  - Regional Blood Flow/physiology
MH  - Stroke Volume/physiology
MH  - *Temperature
EDAT- 2011/05/24 06:00
MHDA- 2011/12/20 06:00
CRDT- 2011/05/24 06:00
PHST- 2010/12/21 00:00 [received]
PHST- 2011/04/29 00:00 [revised]
PHST- 2011/04/29 00:00 [accepted]
PHST- 2011/05/24 06:00 [entrez]
PHST- 2011/05/24 06:00 [pubmed]
PHST- 2011/12/20 06:00 [medline]
AID - S1095-6433(11)00130-9 [pii]
AID - 10.1016/j.cbpa.2011.04.020 [doi]
PST - ppublish
SO  - Comp Biochem Physiol A Mol Integr Physiol. 2011 Nov;160(3):311-9. doi: 
      10.1016/j.cbpa.2011.04.020. Epub 2011 May 11.