Aquatic Animal Feeding Flashcards
Classify acc to tropic niche
Plankton eating surface feeders catla
Column or mid feeders Rohu
Bottom feeders mrigal
Classify feed
Suplement
Complete feed
Feedin habits with example
- Herbivores. Grass carp, silver carp , milk carp ,tilapia molluscs ( clams oysters and muscles )
- Detritus. Mud carp
- Omnivorous common carp, mullet , channel cat , freshwater prawn
- Carnivorous Trout salmon shrimp snake head
Types of artificial feeds
Wet feeds moisture content 45-70%
Moist feed 25-45%
Dry feed 7-13%
Larval feed
Types of larval feeds
Minced diets
Wet microparticulate diets
Dry microparticulate diets
Enlist feeding stratigies
1.Feeding frequency 4 to 6 times day , as the fish grows meals are reduced either 1 or 2
For shrimps 4-6 times for larvae And juveniles and 3-6 times for adult and subadults
2. Size of the feed adequate number of feeding trays 30-40? For shrimps
Good palatable feeds r consumed in how much time by fishes
15-30minutes
Nutritional requirements of feeed
Protiens 32-45% Lipids. 2-4.5% Carbohydrates. 10-30% Vitamins 1-2.5% Minerals 1-2.5%
Pigments are added to which type of fishes amd which colour do they impart
In ornamental fishes , salmon. And imprt red and yellow
Binding agents
Starch ,cellulose, gelatin ,gum arabic
Seaweeds- agar, carageenin ,
Antibacterials and antioxidants in feed
Vitamin E , BHA , ethoxyquin
Attractants in feed
Improve feed palatibilty , intake and flavour
Eg- amino acids like glycine and alanine .
-betaine are chemoattractants to stimulate feeding behaviour in fish
Steps involved in the preparation of feed
Preparation of dough like mixture of ingredients
Extruding the feed
Preparation of pellets
Storage in freezers
Types of nutrition
Herbivores green plants
Detritus dead organic matter and associated livin organisms at the bottom of pond
Omnivorous feed on both plant detritus and animal sources of food
Carnivorous Fish and shrimp feed on smaller animals
