Artificial insemination of rainbow trout
1. Preparation before insemination: tools: egg collection and fertilization basin can be replaced by face washing white porcelain basin. In addition, medical gauze, feathers, microscope, beaker, measuring cylinder and other tools are also needed. The preparation of isotonic solution: sodium chloride 90.4g, potassium chloride 2.4g, calcium chloride 2.6g, dissolve in 10L water in turn and preserve at more than 4 ℃. Its function is to dissolve vitellin from broken eggs to improve the eye production rate.
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Crocodile culture conditions
If you want to raise crocodiles, you must first choose the site to build crocodile ponds, aquaculture ponds and other basic facilities according to the scale you want to raise crocodiles, and submit project reports to the local fisheries bureau, land and resources bureau, administration for industry and commerce and other relevant departments for examination and approval. Check the address
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What do you feed black fish?
Although the black fish is not as common as crucian carp and carp, it is also a common edible fish in our country, and the black fish is very fierce, it usually mainly feeds on the fish in the pond. The individual size of Blackfish is very large, so its economic value is very high.
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