Hatchery and nursery

Information related to hatchery management, larval rearing and seed production in aquaculture.

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A collection of subject tags relating to technical matters.

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Aquaculture Asia Magazine, July-September 2006

In this issue:

Resources and biodiversity of seahorses and their need for conservation in India. Captive breeding of pangasid catfish Pangasius pangasius. Establishment of post-tsunami rehabilitation information units in Thailand. Poor farmers culture tilapia intensively in ponds in Central Luzon, Philippines. Simple herbal treatment for treatment of EUS in snakehead. DNA vaccination in health management. The role of immunostimulants. Red tilapia cage culture in central Thailand. Quality improvement of farmed fish in Iranian markets.

Leaflets on better management practices for Penaeus monodon in Vietnam

A series of leaflets on better management practices for Penaeus monodon shrimp aquaculture in Vietnam. The leaflets are available in both Vietnamese and English and cover: Broodstock management for suppliers, postlarvae selection and transportation for seed traders, shrimp seed quality, pond preparation, good pond management, shrimp health management.

Better practice guidelines: Spawn production in hatcheries

These guidelines provide advice on producing fish seed in small-scale hatcheries. This publication is also available in Oriya.

Better practice guidelines: Fry production - nursing spawn

‘Spawn’ is the name for the young fish about three days old that are available from hatcheries. Sometimes these young fish are also called hatchlings. The spawn of catla, rohu and mrigal is about 6-8 mm long. At this stage, the ‘yolk sac’ is absorbed, the mouth opened and the fins fully developed. Spawn are reared intensively, first to the ‘fry’ size and then to the ‘fingerling’ size. All the three stages are marketed and collectively called ‘seed’.

Better-practice guidelines: Fast fingerling production - nursing spawn in ponds

The “fast fingerling system” can produce advanced fingerlings about two months earlier than they are normally available from fish farms.  The farmer uses just one pond for continuous growing until fingerling size is reached, and fewer fish are stocked. A farmer with a small, seasonal pond can produce fingerlings in one month. These can then be sold for a high price because everyone wants fingerlings as early as possible.