Digestion and Metabolism

  • Tom Lovell


Digestion may be defined as the preparation of food by the animal for absorption. As such, this may include mechanical reduction of particle size (grinding by pharyngeal teeth or gizzard), enzyme solubilization of organics, pH solubilization of inorganics, and emulsification of lipids. Absorption includes the various processes that allow ions and molecules to pass through membranes of the intestinal tract into the blood or lymph to be metabolized by the animal.


Grass Carp Channel Catfish Keto Acid Apparent Digestibility Pharyngeal Tooth 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. ANDREWS, J. W., and Y. MATSUDA. 1975. The influence of various culture conditions on oxygen consumption of channel catfish. Trans. Amer. Fish. Soc. 104: 322–327.CrossRefGoogle Scholar
  2. BRETT, J. R. 1979. Physiological energetics. In Fish Physiology, vol. VII, ed. W. S. Hoard, D. J. Randall, and J. R. Brett. New York: Academic Press.Google Scholar
  3. CHO, C. Y. 1982. Effect of dietary protein and fat levels on heat increment of feeding rainbow trout. Proc. XII Int. Cong. Nutr., San Diego, CA.Google Scholar
  4. CHO, C. Y., S. J. SLINGER, and H. S. BAYLEY. 1982. Bioenergetics of salmonid fishes: Energy intake, expediture and productivity. J. Biochem. Physiol. 73B: 25–41.CrossRefGoogle Scholar
  5. CHOUBERT, G., JR., J. De La NOUE, and P. LUQUET. 1979. Continuous quantitative collector for fish feces. Prog. Fish.-Cult. 41: 64–66.CrossRefGoogle Scholar
  6. GOLDSTEIN, L., R. P. FORSTER, and G. M. FANELLI. 1964. Gill blood flow and ammonia excretion in Myxocephalus scorpius. Comp. Biochem. Physiol. 12: 489–499.CrossRefGoogle Scholar
  7. GRIZZLE, J. M., and W. A. ROGERS. 1976. Anatomy and histology of channel catfish. Auburn, AL: Agricultural Experiment Station, Auburn University.Google Scholar
  8. POPMA, T. J. 1982. Digestibility of selected feedstuffs and naturally occurring algae by tilapia. Ph.D. diss., Auburn University, Auburn, AL.Google Scholar
  9. SMITH, B. W., and R. T. LOVELL. 1971. Digestibility of nutrients in semipurified diets by channel catfish in stainless steel troughs. Proc. 25th Ann. Conf. of S.E. Assoc. Game and Fish Comm. 452–459.Google Scholar
  10. SMITH, B. W., and R. T. LOVELL. 1973. Determination of apparent protein digestibility in feeds for channel catfish. Trans. Amer. Fish. Soc. 102: 831–835.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1989

Authors and Affiliations

  • Tom Lovell
    • 1
  1. 1.Auburn UniversityUSA

Personalised recommendations