Fur key breeding technology

Fur mink breeding is a seasonal, technically strong and risky industry. In particular, errors in a certain technical link in the process of breeding, management and management all cause irreparable economic losses throughout the year. The author now summarizes the key points of breeding furry beasts into ten words as follows: Selecting the venue and building emphasis on "light" and "net"

Selecting a field to build a site for a hundred years. First of all, we must emphasize the word “light”, which means that the breeding site must meet and satisfy the light requirements of the fur-fed animals. Because "light" is the chief ecological factor necessary for the survival of fur coats, especially for reproduction and molting. The "light" conditions are met, and other factors such as temperature, humidity and other factors are the next. "Light" should pay attention to both the light cycle and the light intensity. Light latitudes are directly related to geographical latitudes, and low-latitude regions where the light cycle changes slowly are not suitable to breed fur animals distributed in low-latitude regions where the light cycle changes significantly. The intensity of light should not be too weak, too weak will inhibit the animal's hair replacement and reproduction; not too strong, too strong and not only summer is easy to heat stroke, but also will make the hair lighter and tarnished and reduce the quality of fur.

Furrowed animals should adopt natural light instead of artificial light. In the hair-changing and breeding seasons, scientifically and regularly artificially increasing or decreasing the light has certain benefits in promoting hair replacement or reproduction; however, increasing or decreasing the light blindly and regularly can cause disturbances in animal photosensitivity, resulting in irreversible changes. Failure of reproduction and economic loss.

Select the field to build the field to emphasize the "net" word. That is, from the perspective of sanitation, epidemic prevention and epidemic prevention and control, sites should be selected according to local conditions so as to reduce the losses caused by the epidemic.

Preparation for breeding period emphasizes “膘” and “情” “膘” refers to lyricism, that is, the condition of the animal. Practice has proved that there is a direct relationship between reproduction conditions and fertility of breeding animals. Over-fat and over-skinned conditions are not conducive to reproduction. Appropriate body condition of the breeding animals must be gradually adjusted during the preparation of the breeding period, and must not be accelerated rapidly in the adjacent breeding season or breeding season. Should be based on climatic conditions in the winter maturation and after the development of evoked organs to gradually reduce the fat before the breeding period. The body condition of the preparation for rearing is adjusted to be slightly lower and slimmer, but it cannot be too low or too thin, otherwise it will reduce the libido of the common beast and the quality of the semen. The mother beast not only has difficulties in mating, but also is not convenient for supplementing the pregnancy. . The best body condition is: the body condition of the blister is to be flat on the abdomen, and the sagging or slight sag of the posterior sacroiliac region is better; the fox and foal can be identified by looking at the outline above the arm from behind. Above the arms, the contours are flush or the depressions in the middle are overweight. Those similar to the big head of the egg are moderate, while those like the small head of the egg are thin.

"Emotion" refers to the aphrodisiac, that is, in the preparation of the breeding period, especially in the winter maturation or winter solstice, to promote the growth and development of sexual organs, to prepare for timely estrus breeding. Feeding must ensure the supply of full-price protein and supplement vitamin A and vitamin E. These two vitamins are directly related to the development and maturation of sex organs and gametes, so they should be replenished at the latest after the winter solstice. After the preparation of breeding, it is necessary to continue to feed onions, garlic and other aphrodisiac feed, which is conducive to aphrodisiac and breeding.

Paying attention to "precise" and "precise" and "precise" in breeding period means that the assessment of estrus and the observation of mating behavior must be accurate. The assessment of estrus should not be based on the subjectivity of farmers, but should be based on animal sexual behavior. In the so-called comprehensive estrus identification method of seeing, checking, and releasing, seeing (looking at animal sexual excitement) and checking (inspecting morphological changes of external genital organs) are references, and finally putting (putting on the trial) the sex Behavior is the exact criterion for identifying heat. It is very important to put the word “trial” on the trial situation. If the female animal enters into a prosperous estrus phase, don’t try to get too long. Otherwise, the bite between the male and female beasts will cause sexual inhibition, resulting in artificial failure to breed.

Accurate observation of mating behavior is also very important, to be exactly judged to be true match, false match, and mismatch. Observed or in doubt, check with azoospermia.

"Sperm" means that the male beast's semen quality must be excellent, and the semen quality check method must be used to confirm the species value of each beast, and early submission and elimination of poor male semen with poor semen quality. When a full group of semen quality is found to be poor or declining, identify the cause promptly and take appropriate measures. Supplementing the liver, brain, milk, eggs and other full-priced feeds and feeding vitamin A and vitamin E, etc., are beneficial to improve the quality of the beast semen. It is strictly forbidden to increase lighting during the breeding period, otherwise it will cause the quality and libido of the animal species to decline in advance.

Pregnancy should pay attention to "fresh" and "full" "fresh" means that the quality of feed should be fresh. The requirements for feed quality during the gestation period are the most rigorous in the whole year. We must eliminate all feeds that are not fresh, especially rotten and spoiled, so as not to cause a complete group of stillbirths, rotten fetuses, and even subsequent ailments. Therefore, do not Take it lightly.

"All" refers to the nutritional value of the gestational diet. Under the premise of fresh feed quality, a variety of feed mix and match will help improve the nutritional value of the diet. Dietary supplements such as essential fatty acids, multivitamins and inorganic salts should be guaranteed in the diet.

The “warm”, “milk”, and “warm” focus on maternity and lactation mean that the produce box should be dry and warm. The three main elements of childbirth activities are motherhood, temperature, and milk. The lack of a child can not survive. The temperature of the box is particularly important at the beginning of the birth. Not only directly affect the vitality of the beast, but also related to the growth of the beast. In order to make the box dry and warm, it is necessary to do a good job in the disinfection of the small room and the heat insulation of the childbirth. Although the temperature difference between the north and the south is relatively large and the amount of straw is suitable for the local conditions, the author believes that pre-natal flocculation is necessary but not superfluous.

"Milk" means that the milk produced by the maternal beast is better, and the milk is the sole source of food and nutrition for the beast. Therefore, the quantity and quality of the milk directly affect the survival rate and growth of the beast. In order to promote the mother's lactation and improve milk quality, this period should not limit the amount of maternal beast feed, and in the diet to add milk, eggs, liver, meat. In the management, the lactation status of the maternal beast is checked at any time through its behavior and the growth and development of the beast, and corresponding measures are taken. For the mother animals that are born with lack of milk, the prolactin can be tried. During the lactation period, it is found that the mother animals have poor breast inflammation, lack of milk, and poor milk quality.

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