• PROCESSING AND PRESERVATION OF FISH
    AGRICULTURAL SCIENCE

    PROCESSING AND PRESERVATION OF FISH

    Harvested fish is either consumed, sold or preserved for future use. Fish processing involves the removal of scales, fins, gut and gills. The remaining part is then cooked or fried for eating. By-products of fish processing include: fish meal. fish scales. cod liver oil. fish skin.   Fish can be preserved for future use by any of the following ways: Salting: This is the application of salt on the fish. It prevents the growth of spoilage organisms. Smoking: This is the drying of fish over naked fire. It reduces the moisture content and increases the taste and flavour of the fish. Sun-drying: This involves the drying of fish using heat…

  • FEATURES OF A STANDARD FISH POND
    AGRICULTURAL SCIENCE

    FEATURES OF A STANDARD FISH POND

    The essential features of a standard fish pond include: Dam. Core trench. Distribution channel. Spill way. Monk. Boards. Screen. Dam slope (inner and outer). Dam: This is the large area of the pond that holds water. It ensures the availability of water in the pond. Core trench: This is the escavated portion of the fish pond. It consolidates the walls with stones and cement. Distribution channel: This is the area which helps to introduce water into the pond. Water is distributed to all the sections of the pond until it gets to a particular volume. Fertilizers can equally be mixed up with the water and distributed together. Spill way: This…

  • AQUACULTURE
    AGRICULTURAL SCIENCE

    AQUACULTURE

    Aquaculture is the act of rearing selected species of fish, shrimbs , crabs, etc under scientifically-controlled conditions in enclosed bodies of water such as ponds, streams and rivers where they feed, grow, breed and are harvested for consumption or for sale.   TYPES OF AQUACULTURE The different types of aquaculture are: Fish farming. Shrimp farming. Crab farming.   DEFINITION OF FISH FARMING Fish farming (culture) is the act of rearing selected species of fish under scientifically controlled conditions in enclosed bodies of water such as ponds, streams, rivers, etc ., where they feed, grow, breed and are harvested for consumption or for sale.   Terms Associated with Fish Farming Fingerlings:…

  • FISHERIES
    PRE-VOCATIONAL STUDIES

    FISHERIES

    All the activities relating to the production of fish and other aquatic animals known as fisheries. Fishes are cold-blooded animals, that is their body temperature changes according to that of their surroundings in which they live. They breathe with the help of gills and swim with their fins. They feed on plankton. All fishes are vertebrates, that is, they have backbones and scales. They have steam-line body for swimming freely in water. fish may be viviparous, oviparous, and ovoviviparous in reproduction. Fishery is the area of specialization in agriculture that is concerned with the production of fishes as well as other aquatic animals. The rearing of fishes (fingerlings) or fryers…

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