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  • Nutrition in tropical aquaculture : essentials of fish nutrition, feeds, and feeding of tropical aquatic species
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Feeding habits and digestive physiology of fishes

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Chapter 3 (4.674Mb) Open Access
Downloads: 34,042
Date
2002
Author
Borlongan, Ilda G.
Coloso, Relicardo M.
Golez, Nelson V.
Page views
13,731
ASFA keyword
feeding ASFA
feeding habits ASFA
anatomy ASFA
physiology ASFA
fish physiology ASFA
head ASFA
mouth ASFA
oesophagus ASFA
stomach ASFA
intestines ASFA
liver ASFA
pancreas ASFA
digestibility ASFA
biotic factors ASFA
food availability ASFA
competitive behaviour ASFA
abiotic factors ASFA
digestive system ASFA
epithelium ASFA
hepatopancreas ASFA
digestion ASFA
stomach content ASFA
AGROVOC keyword
pepsin AGROVOC
trypsin AGROVOC
chymotrypsin AGROVOC
peptidases AGROVOC
in vivo digestibility AGROVOC
in vitro digestibility AGROVOC
appetite AGROVOC
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Abstract
This chapter provides basic information on the feeding habits and behavior, and physiology of fishes and crustaceans. The mechanisms that control the movement and digestion of food, methods of assessing digestibility of feed, factors affecting digestion and absorption of food nutrients, and feeding processes in fish are discussed. An understanding of the feeding habits, feeding mechanisms, and the digestion and absorption processes can help fish farmers and nutritionists maximize the use of feed. The rate at which fish digest their food is of primary importance in determining feeding rates, frequency, and ration size. Knowledge of the digestive physiology of fish is also necessary for an effective feed formulation and in choosing a proper feeding regime.

This chapter aims to teach the reader: the feeding habits and behavior of fishes and crustaceans; the structural adaptation in the anatomy of the digestive tract; the various organs of the digestive systems of fishes and crustaceans and their functions; nutrient digestion and absorption by fishes and the fate of digested and undigested food; the factors that affect the rate of digestion and absorption; and the feeding process in fish.
URI
http://hdl.handle.net/10862/3316
Suggested Citation
Borlongan, I. G., Coloso, R. M., & Golez, N. V. (2002). Feeding habits and digestive physiology of fishes. In O. M. Millamena, R. M. Coloso, & F. P. Pascual (Eds.), Nutrition in Tropical Aquaculture: Essentials of fish nutrition, feeds, and feeding of tropical aquatic species (pp. 77–97). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center.
Contents
  • Introduction
  • Feeding habits and behavior
  • Anatomy and physiology of the digestive system
    • Fishes
    • Crustaceans
  • Digestion and absorption
    • Digestion and absorption of proteins
    • Digestion and absorption of carbohydrates
    • Digestion and absorption of lipids
  • Measurements and analysis used in digestion studies
    • Measurements of stomach contents
    • Measurement of digestibility
  • Factors affecting digestion and absorption
  • Feeding process in fish
    • Appetite and satiation
    • Arousal and search
    • Location and identification
    • Capture
    • Taste testing
    • Swallowing or rejection
  • Summary
  • Guide questions
  • Suggested readings
Type
Book chapter
ISBN
971851158X
Collections
  • Nutrition in tropical aquaculture : essentials of fish nutrition, feeds, and feeding of tropical aquatic species [14]

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