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Artificial rearing otters is a good project for quick investment and can be used in abandoned ponds or gardens. Mink breeding should pay attention to the following issues:
1. In case of escape, it is necessary to build a wall around the pond to prevent escape. The height of the wall should be about 80-100 centimeters. The underground part should be more than 30 centimeters. The inner wall of the wall should be plastered with cement and sand to make a matte surface. (The surface of the wall is smoother. The easier it is to escape.)
2. Many aquatic plants are reared, and water hyacinth and duckweed are the main ones. Because the water is in direct sunlight, they are both the feed of the snails and the shade of the otters. The otters can also spawn on them.
3. Paddy field should be put in one-time (about 50 kg/acre) field snail, snail should choose large size, snail breeding ability is strong, sustainable supply of feed for mink. In addition, a blood clot of livestock and poultry should be introduced once a week for the leeches, but the blood clots must not contain salt. In order not to affect the water quality, it is not possible to directly put water in the water. The blood clots can be placed on wooden pieces to make them float on the water. After the water scoop smells the flavour, it can climb up to eat, but blood clots must not be removed more than two days.
4. After the introduction, the leeches should not be put directly into the pond because the leeches themselves will produce a layer of mucous membrane as a protective layer during transportation. A cool, damp place should be selected around the pond. Put the leeches there and make them natural. Climb into the pond to reduce death.
5. The otters reproduce in the soil under the cover and do not reproduce in the water. During the breeding period, if the water is diffused through the soil bed for about 7 days, the otter eggs die due to lack of oxygen. Attention should be paid to the inspection to ensure the success of breeding.
6. The harvest period is generally in 10 months. The leeches that are to be salvaged should be separated by large, medium, and small. The large leeches should be filtered out and put back into the pool to be used as a kind of leeches. The breeding should be continued in the second year, and the small ones should be placed in another pool. Continue to raise in order to raise more than 15 grams of salvage for sale in the second year, and medium should be sold immediately after processing into dried products.
Problems in Mink Culture
In recent years, a large number of pesticides and chemical fertilizers have caused the destruction of wild mink resources, resulting in a scarcity of supplies for the medicinal material market. As a result, the price of mink (dried products) has risen and prices are promising.