博文

目前显示的是 2018的博文

Three Necessary Elements in Fish Feed Formulation

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In the design of freshwater fish feed formulation, the main considerations are protein, vitamins and minerals. Protein: Protein is generally the first consideration in the formulation of nutritional element, fish needs twice or three times amount of protein than livestock, because of the poor ability of using carbohydrate, fish needs to consume part of the protein as a source of energy. Feed price is mainly determined by the level of protein, so the design of feed formula often firstly consider the level of crude protein, but attentions need to pay is considering the balance of digestible protein (DP) and amino acids more important, in addition to considering the level of crude protein. Vitamin : Fish has short intestinal , the type and quantity of bacteria is rare, so the synthesis ability of some vitamins is poor, a lot of vitamin need provided by the feed. Such as vitamin C is don't need to add in livestock and poultry feed material, but in fish feed do need, it can improv

Cost of Starting a Fish Farm in Nigeria

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To start a fish farm, you will have to invest as much money as possible depending on the size you want to start with, but it is advisable to start on a small scale before expanding as you acquire experience because  catfish farming   is a major investment operation that needs careful consideration before start up. You will need capital for labour, land, pond construction, fish feed machines and all other operational costs. The commonest species of fish reared on fish farms in Nigeria is the cat fish and this write up summarizes the basics of cat fish rearing. There are two divisions of catfish farming, that can be either operated separately or integrated into one process and these are the nursery fish farming and the grow out fish farming. The grow out fish farming is dependent on the nursery because a farmer cannot grow fish without a nursery which involve the inducement of the female fish to lay eggs, which are then fertilized, incubated and hatched into little fishes know