Culture technology of mackerel

Roe deer, also known as dwarf deer, wild sheep, belonging to the cloven hoofed deer family, herbivorous animals. Roe grass yellow body, white hair under the tail root, male roe horn, female horn. Roe deer is one of the animals with high economic value and one of the most common wild animals in northeast forest area. It has been listed in the List of Useful Terrestrial Wildlife Protected by the State or of Important Economic and Scientific Research Value.

Choose a quality breed of roe deer

The roe deer is of medium size. Male roe deer have horns, generally normal adult weight 50-60 jin. Adult female roe deer about 50 jin. Roe deer must eat more than two months of breast milk, weight of more than 35 jin, smooth hair color, eyes Zheng Liang, moderate love, no disease without disability. To buy 3-5 families of roe deer to avoid close relatives.

The ratio of male to female should be appropriate. Roe deer is different from other animals, estrus time is short, generally 24 hours, roe deer group concentrated estrus, less than 20 days before and after, and female roe deer estrus once a year, there are individual male roe deer sexual function is poor. Therefore, male roe deer should not be too few. In my experience: two mothers and one male are the most suitable, and the pregnancy rate is high.

Identification and acclimatization after introduction

1. Building houses

The fence shall not be lower than 2.5 meters high, and several small circles shall be built, and the height of the small circle fence shall be 1.5 meters. The area of each small circle varies from 6 to 10 square meters, which is reserved for mating and lambing, and small doors are provided for small circles and small circles. The overall area of the large circle depends on the number of roe deer, so as to ensure that the roe deer has movement space. Large venue, large amount of exercise, less crowding, less disease. The ground should be flat with bricks, cement ground is not good, hot in summer, cool in winter. There should be drainage ditch in the circle, no ponding in rainy days, and there must be a canopy to protect dry places to lie down and ruminate in rainy days. After the vernal equinox, the male and female will be separated, and after the autumnal equinox, the large group will be combined.

2. Solve the problem of identification and acclimatization

From the old land to the new house, new people, new environment, roe chicken to recognize life and make trouble is inevitable. Here's how:

① Put the dried dung eggs of roe deer into bags in advance and send them away with the car. Before the roe deer comes out of the cage, scatter the dried dung eggs evenly into each canopy, so that the roe deer can smell the smell of itself and the same kind when entering the circle, so as to have a sense of safety and reduce shock and collision.

② Add enough coarse feed for one night or one day before the roe deer enters the pen. Concentrate feed to add a meal is better, corn flour each not more than one liang, wheat bran and bean cake flour half liang. 6-8 After hours, add a second meal of concentrated feed, lest the bold eat more diarrhea.

③ Water should be boiled and cooled and put into the circle. It should be replaced with well water at least three days later. Long-term guarantee of water in the circle, must be changed once a day.

④ Assign special personnel to familiarize roe deer with the smell, sound and clothing of keepers as soon as possible, refuse to visit and reduce fright.

5 If the scale is large, 50 will exceed, and the circle must be divided into two, so as not to scare, explode, crowd, and crash.

There are also drugs to prevent mixing in advance, I have a formula, three days after the basic normal, according to the above method of acclimatization diarrhea will not occur.

feeding management

1. Concentrate feed: corn, wheat bran, all kinds of bean cakes, and coarse flour mixed with water for blowing without flying dust. The ration is three liang of corn flour, one half of wheat bran, one half of sunflower cake or bean cake every day, fed three times in the morning, middle and evening.

2, coarse feed: winter feed all kinds of broad-leaved forest (poplar, elm, press, fruit leaves, etc.) leaves, grass alfalfa, weeds can be, as long as not mildew; all kinds of straw (corn, millet, beans, sunflower plate, etc.), straw cut section is best, do not beat grass powder, straw skin hurt stomach. In summer, green fodder (all kinds of leaves) is mainly used, and in addition, all kinds of bean seedlings, corn leaves, all kinds of weeds, medicinal materials, alfalfa grass and sunflower discs (chopped) can be used; all kinds of roots and stems of vegetable fodder can be used (cabbage, big head white, rape, lettuce, dandelion, horse tooth vegetable, all kinds of radish, especially carrot is the best, cut into small pieces and quantified). Vegetable feed is especially important in winter, one can supplement water, two can increase various vitamins. Salt should be rationed, about 15 roe deer 1 level tablespoon, once every three days; salt bricks can also be hung, but must be hung out of reach of the roe deer. In the summer, to increase the sorghum flour to the roe herd 10 can be one or two per day, reduce it thin.

oestrus mating

Female roe deer come into estrus once a year, and mating accuracy is the key to strengthen roe deer population. Estrus occurs around the annual white dew (Mid-Autumn Festival). Male roe deer must saw their horns to avoid collision.

Every year on August 25 to start testing, morning and evening once a day to let the female roe and male roe meet one by one. The female roe deer in estrus does not run or cry, but actively approaches the male roe deer; otherwise, she cries and runs away. Female roe deer in estrus will obediently wait for male roe deer to climb and jump. When you see the penis of the male roe deer inserted into the female roe perineum, bow hard to match. Note that the male roe deer has a penis exposed in advance of the soft bend is pressed phenomenon. At most let male roe deer jump twice, must be separated, and prohibit male roe deer immediately drink water, can ensure the health of male roe deer. Every 6 hours again match for good, otherwise male roe deer no semen is not allowed to fetus.

Management of childbirth

Pregnant female roe deer feed to meet nutritional needs, pregnant 9 months. One month before lambing and two months after lambing, millet and oil (sunflower seed or hemp seed is best, fried and added flour) should be added to the female roe deer. One liang of millet and half liang of oil should be fed in three meals every day to keep milk sufficient and mother healthy.

Lambing period around the Dragon Boat Festival in May, very accurate. Female roe deer is not quiet before delivery, lying restless, milk belly drooping, there is a stomachache phenomenon, visible vulva has light red mucus, this is a lambing sign, should be isolated in a single circle. At this time, the circle must be quiet, avoid old people to watch before the circle, will make the female roe distracted fear of causing dystocia. Breeders should observe from a distance, generally two hours that is smooth production. As long as both legs are exposed together, it is generally a natural birth; if it is not possible to give birth within four hours, measures should be taken (caesarean section is the best, which can protect the mother and child). Dystocia is mostly small circle, female roe deer did not exercise, single lamb size is large, two weeks before lambing every morning will be particularly honest pregnant female roe deer to catch up exercise for a while is good. A year a child is generally two, mostly dragon and phoenix, but also three or four, less; the first child also has one.