Choosing a suitable breeding site is an important task for building a farm and raising a good otter. It is necessary to carefully consider and carefully evaluate and make economic and reasonable application and safety as practical as possible. We must consider the living habits and requirements of otters, and consider the conditions of terrain, water quality, soil quality, transportation, electricity, irrigation and drainage, and bait, etc. Both comfortable living environment and healthy growth and development.
First, the living habits of otters The otters are aquatic, wild, warm and special food. According to the living habits of Minamata, it is required to select places with a certain amount of water, warmth, quietness, and a large number of animals and plants. Noise, especially vibration, is detrimental to the growth of leeches. Therefore, we should avoid frequent traffic along the route of the vehicle and noise, vibration of the airport, factories and other areas.
Second, the choice of terrain and terrain should be leeward and sunny, and the environment is good. In this way, the spring and autumn seasons can increase the duration of light, prolong the growth period of blisters, and can prevent wind and cold in the winter, so that the bract can safely overwinter. At the same time, in a beautiful environment, summer can both prevent heatstroke, increase the number of living animals and plants, and provide enough food for the otters.
Third, the quality of fresh water in China's vast waters, due to geographical differences in the quality of water there are significant differences. The physical and chemical indicators that determine the quality of water quality include temperature, salinity, oxygen content, pH value, water color and fatness. Consider whether the flow of water to the site is polluted. Severely contaminated waters, such as abnormal water color, increased turbidity, increased suspended solids, increased toxic substances, and foul odors, must not be used. At the same time, the changes in the water level of the water area within one year or even several years must also be taken into account to ensure that there is water during the drought and no flooding during the flood season.
4. Soils of different types have different pH values, types and amounts of salt, oxygen content, water permeability, and humus-containing degrees, which will affect the growth of aquatic organisms. It is generally divided into 5 types: gravel, sand, clay, loam and humus. If the water quality is relatively rich, that is, rich in nutrients, the bottom soil can use gravel and sand; the water quality is not fat, ie, the nutrients are not abundant, such as the use of groundwater or tap water, and the bottom soil is applied with humus; if the pool Bottom leakage, the bottom layer is also applied clay compaction. Therefore, different types of soil should be selected according to the water quality conditions. The soil in the bottom of the pool should be relatively hard and have more fat organic matter.
V. Transportation and electricity The transportation is convenient, which can bring convenience to the transportation of products and feeds, save time and reduce the transportation expenses. In addition to daily lighting, electricity, such as processing feed and products, requires electricity and should be able to guarantee supply.
6. The water level in the tanks for irrigation and drainage should be able to be controlled freely, and drainage and irrigation are convenient. To achieve drought irrigation, we should be able to row, both hands must grasp. In particular, the impact of floods should be prevented so as not to cause undue losses.
Seven, bait feed mostly water plankton, snails, shellfish, shrimp, fish and other animals. At the same time, attention should be paid to the use of blood in livestock and poultry at nearby slaughterhouses.
First, the living habits of otters The otters are aquatic, wild, warm and special food. According to the living habits of Minamata, it is required to select places with a certain amount of water, warmth, quietness, and a large number of animals and plants. Noise, especially vibration, is detrimental to the growth of leeches. Therefore, we should avoid frequent traffic along the route of the vehicle and noise, vibration of the airport, factories and other areas.
Second, the choice of terrain and terrain should be leeward and sunny, and the environment is good. In this way, the spring and autumn seasons can increase the duration of light, prolong the growth period of blisters, and can prevent wind and cold in the winter, so that the bract can safely overwinter. At the same time, in a beautiful environment, summer can both prevent heatstroke, increase the number of living animals and plants, and provide enough food for the otters.
Third, the quality of fresh water in China's vast waters, due to geographical differences in the quality of water there are significant differences. The physical and chemical indicators that determine the quality of water quality include temperature, salinity, oxygen content, pH value, water color and fatness. Consider whether the flow of water to the site is polluted. Severely contaminated waters, such as abnormal water color, increased turbidity, increased suspended solids, increased toxic substances, and foul odors, must not be used. At the same time, the changes in the water level of the water area within one year or even several years must also be taken into account to ensure that there is water during the drought and no flooding during the flood season.
4. Soils of different types have different pH values, types and amounts of salt, oxygen content, water permeability, and humus-containing degrees, which will affect the growth of aquatic organisms. It is generally divided into 5 types: gravel, sand, clay, loam and humus. If the water quality is relatively rich, that is, rich in nutrients, the bottom soil can use gravel and sand; the water quality is not fat, ie, the nutrients are not abundant, such as the use of groundwater or tap water, and the bottom soil is applied with humus; if the pool Bottom leakage, the bottom layer is also applied clay compaction. Therefore, different types of soil should be selected according to the water quality conditions. The soil in the bottom of the pool should be relatively hard and have more fat organic matter.
V. Transportation and electricity The transportation is convenient, which can bring convenience to the transportation of products and feeds, save time and reduce the transportation expenses. In addition to daily lighting, electricity, such as processing feed and products, requires electricity and should be able to guarantee supply.
6. The water level in the tanks for irrigation and drainage should be able to be controlled freely, and drainage and irrigation are convenient. To achieve drought irrigation, we should be able to row, both hands must grasp. In particular, the impact of floods should be prevented so as not to cause undue losses.
Seven, bait feed mostly water plankton, snails, shellfish, shrimp, fish and other animals. At the same time, attention should be paid to the use of blood in livestock and poultry at nearby slaughterhouses.
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