ANSC 3170 Study Guide - Midterm Guide: Seta, Storage Organ, Bone Meal
27 Mar 2018
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Document Summary
Defined by contribution of natural food sources and intensity: extensive aquaculture, no input, natural food web, semi-intensive aquaculture, natural food completed with fertilizers and supplemental feed, intensive aquaculture, no (or minor) contribution of natural food. Input has to be nutritionally complete to meet all nutrient requirements: higher density of fish = higher density of fecal matter. Common organisms include zooplankton (rotifers, copepods), brine shrimp / artemia. Artemia is not nutritious (very low fat), need to coat them with fat before feeding. Need to be very homogenous because larvae may only consume few beads. Very costly but can use for a long time. Feed: high degree of sanitation, self selected, natural, lower degree of sanitation. Reliability of feeding tables (5: different animal different genetic potential, date of table creation vs. present time, performance between production sites, nutrient density of feed, energy profile/composition.
