The coypu, also known as the raccoon dog, weighs about 6 kilograms in adulthood, and can mate with litters from June to 7 months of age. It can produce 2 to 3 births a year, and 4 to 6 births per month. The coypu takes the roots, stems, and leaves of the plant as the main feed and does not require high feeding conditions. Artificially nursed coypu, the source of feed is wide, the management is more extensive, and the economic benefits are good.
First, build the kennel coypu breeding equipment with bricks and asbestos tiles built. In general, the pen house feeding method is adopted, and the structure of the pen house is similar to that of the pig pen, but it is only slightly smaller than that of the pig pen. There should be an open-air playground with an area of ​​1m2 and a one-room built at one end, each occupying about 0.5m2. The pool should be built on the other side of the playground for drinking water and swimming. The area of ​​the pool Half of the stadium is big enough. Around the enclosure, a wall with a height of 80 cm or more was built, and 2 breeding rodents were raised in each lap.
Second, do a good job reproduction Breeding coypu should be selected from 9 months of age to 48 months of adult rats. The juveniles are sexually mature from June to 7 months, but it is better to mate with male and female rats over 9 months of age. Breeding is not subject to seasonal restrictions and breeding is natural. The maternal estrus occurs once every 25 days to 30 days, and only when estrus can be bred. If there is no conception, supplementation will take place when estrus occurs again 20 days later. The maternal can also be mated 2 to 3 days after childbirth, that is, blood matching, which helps to increase the conception rate. The performance of the estrus is willing to approach the male rats, often squealing outside the nest; the performance of the male rat when the estrus is in a state of restlessness, often climbing the house, sometimes running across the mother's circle. The maternal period of gestation is about 130 days. After 3 months, it can be seen from the appearance that the mother's abdomen is rounded and widened, the nipple is obviously enlarged, and her performance is quiet. She often rests in her nest. About 7 days before delivery, it is necessary to clean the inside of the nest and try to dry the inside of the nest to add mat grass. The mother's delivery time is 2 hours to 4 hours. After birth, attention should be paid to the timely removal of the placenta and the dirt. Newborn pups have incisors and coats, their eyes are open, and they weigh 150g to 200g. They can suck breastmilk after a few hours. After 20 days, they will be able to eat cooked porridge-like concentrates, but they need to be separated and raised. 60 days later.
Careful breeding of nutria is a herbivorous fur animal, especially eating roots, tubers and starch-rich plants such as carrots, beets, cabbages, valerian, clover, peas, corn with stems, barley and various types of barley Tender shoots of trees, etc.; barley, corn, bean cakes, wheat bran, etc. can be used as captive feeds. A certain amount of animal feed, such as fish meal, bone meal, etc., should also be added to the concentrate, but the total amount must not exceed 10 %. The feed required for the coypu is mainly based on high-quality green and blue succulent feed, but it is also necessary to feed the appropriate amount of concentrate. After the concentrates are mixed, they are made into pancakes or broccoli. Feeding is started from the age of 1 month, and each broiler feeds 20g per day, increases month by month, and feeds 150 pigs per day at 6 months of age. Grams ~ 200 grams. Each species of male and female mice is supplied with 200 g of concentrate each day, and the nursing mothers are provided with about 250 g. The coypu feeds slowly, and it usually takes a long time to feed the roughage. Therefore, the rough green feed or high-quality hay should be fed separately from the concentrate. If it is fed 3 times a day, it can be fed with green hay at noon and then fed with fine material in the morning and evening.
IV. Scientific management The normal behavior of coypu is inseparable from water, especially during the hot summer months. The water in the pool is used for drinking and swimming. Change it frequently and change it every 2 to 3 days. The pool and sports field should be disinfected once or twice a week. When the summer temperature is too high, it is necessary to sprinkle water regularly to reduce the temperature of the house. If there is no ice in the winter, the pool should be drained as usual. If the ice should be stopped to prevent the rats' tail and rat's feet from freezing, stop drinking water at this time. Juicy roots, stems and leaves, or drinking water from the basin for 1 or 2 times at noon when warm. Whether in winter or summer, the nest needs to be grassed in summer, partially paved in summer, straw or eat the rest of the hay can be, in winter can be thicker, plus heating from the temperature, so that the temperature within the nest can reach 5 °C Above -10°C, it would be better to cover the plastic film above its nest.
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