Wet type fish feed extruder for floating and sinking feed pellet


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Common Fish Diseases & Caused Reasons

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There are literally hundreds of afflictions that can effect the health of farm fish. The most common maladies seen in home aquaculture production are usually either bacterial, parasitic, or viral diseases in origin. Fungal infections are also sometimes seen, and occasionally physical ailments. Common Fish Diseases & Symptoms in Freshwater Cultured Fish 1. Bacterial Disease Bacterial diseases are caused by the infection of bacteria in fish body. Bacterial hemorrhagic disease is most likely to harm grass carp. In early stage of illness, fish will show signs of bleeding, which usually occurs in the fin base, gill cover, mouth and lower jaw, if it continues to develop the fish body will have bleeding, the abdomen will be expanding, and red spots will appear at liver and kidney. While Gill rot disease is most likely to harm grass carp and common carp. In early stage of illness, the fish will loss of appetite, the head will go black with increased mucus, if it continues to develop
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Fish Feed Extrusion Process with Extruder Machine

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Fish Feed Extrusion Process Origin The early-stage extrusion processing was mainly used in food processing industry. Since the nineteen fifties, America had started to use this technology for feed processing field, especially for processing pet food and pretreatment of feed ingredients. Till the nineteen eighties, it has become the fastest developing technique of feed processing industry in the world, and has started to be applied in each sphere of feeding stuff industry, widely used for dry pet foods, some applications for livestock feed and fish feed. With the unceasing development of technology and the continuous rising of people living standard, the growth of aquaculture must follow the principle of producing green food without pollution, bringing significant attention and lots of intensive study on  aqua feed production technology . And there is a consensus that adopting  extrusion process to make fish feed   is the major means to ensure producing high quality and safe aquatic
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Prospect of Catfish Farming in Nigeria

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Catfish is a high density aquaculture industry in Nigeria , the yield is more than 5000kg per acre. That means pure profit of breeding catfish is generally remained between $900,000-1,200,000 per acre. Furthermore, catfish growth cycle is short, basically in 80 days -90 days, it can culture two quarters a year. Nigeria is a country with an estimated population of over 160 million people, and this population is estimated to overtake that of the United states by year 2050. Now what does this mean for catfish farmers? The truth behind this statistics is that there is a ready market for fish and the demand for fish cannot be met by local producers alone. Catfish is one of the cheapest sources of protein and a best substitute for meat. It is a delicacy and can be bought fresh whole, fillets strips or smoked no mater how it is processed for sale catfish farming is very lucrative. Delta state government in Nigeria said four big fish feed factory is under construction, the proje
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