The otters are rare fur animals and live in plentiful lakes with ponds, rivers, and aquatic animals. The otters are good at swimming, diving into the water at night, and generally live alone. It has a keen sense of hearing and vision and often fish, frogs, rats, crustaceans, and aquatic animals at night. Mature after one year, generally 1 time for 1 hair, mostly in the spring and summer breeding litter, 2-5 births per baby, gave birth to a small blisters after 3 months of breastfeeding can live independently.
The construction of breeding and breeding otters in the sheds requires the construction of a breeding shed with an area of ​​2.83.5 meters and a 31 meter pool. A wooden shed (10.60.8 meters) is provided in the room, leaving a small hole and a box of hay inside. There is a concrete floor with barbed wire fence (3 meters high) outside the small room.
Feeding and management Aberdeen can be weaned 40-50 days after birth, but after weaning, it is necessary to catch another pond and raise 8-9 eggs per pond. Astragalus grows faster and can achieve annual weight after 1 year. In the conditions of captivity, the feed for mink is mainly fresh freshwater fish, each serving 0.8-1.2 kg per day, with a small amount of animal meat residues, internal organs and cereals, vegetables, etc. When the weather is cold, feed standards need to increase by 25%. When the summer temperatures are high, you can feed some small fish, loach, frogs and green feed. The quail feeds 4 times a day, and the scorpion feeds 3 times a day, and the winter feeds 2 times. Non-breeding male and female otters should be kept separately. After the breeding season, the male otters should be caught in the female water pond to allow them to mate.
Propagation Techniques Water otters generally reproduce in spring and summer, and otters produced in the south can breed 2 times a year. The male and female otters of the estrus yelled and shouted at each other and bitched each other. Their emotions were very disturbing and their appetite decreased. Female genitals are swollen and estrus usually lasts from half a month to one month. The mating sites are in the water, and the mating time is mostly at night or in the early morning. Mating 1 time for about 5-10 minutes, when the mating male bite the head of the mother's beak, swimming or rolling in the water. Each male otters can be mated with 9 female leeches. They are not accessible during mating so as not to affect their reproduction. Female amphibians reared separately after fertilization, and the appetite decreased during the first trimester of pregnancy. After 1 month of pregnancy, the food intake increased, the abdomen expanded, and the amount of exercise should gradually decrease. The gestation period after the mother's conception is usually 55-57 days. The female scorpion has fierce temper before his delivery and often does not come out in the nest. At this time, prepare a litter box and put some soft hay in the box to prepare the mother's nest. The maternal calving period differs according to the region. For example, mothers in the north of China usually give birth to cubs in the spring and summer after their mothers conceive, and each baby has 2-4 calves. The born baby can independently live after breast-feeding for 3 months. .
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