Management techniques of reserve mink in winter

Mink is seasonal multi-oestrus animal, reproductive system begins to develop from September autumn equinox. Therefore, after killing mink fur (light snow) in November, the number of breeding farms has been greatly reduced, leaving only spare minks to continue breeding. December is the breeding mink reproductive system activities gradually enhanced period, although the development of reproductive organs is relatively slow, in the management also requires serious treatment, a few flaws will affect the quality of breeding mink, also Germany does not appreciate, can not be careless Stimulated by short sunshine, enter the winter reserve mink management link, also begin to adjust the reserve mink winter management program, need to do the following management.

1. Select and retain new mink species. In summer, the young mink has sufficient nutrition and fast growth speed, so the new mink with standard body length and weight can be selected as the female mink for breeding. The quality of the breeding mink is the key to improve the conception rate, birth rate and survival rate. Therefore, the male mink should be selected from the field or replaced. In order to prevent the distance between close relatives, the farther the better.

2. The minks raised in winter are all prepared for breeding. Breeding should be technical measures, male and female should be managed separately. After the autumnal equinox, the illumination time is gradually shortened, summer hair changes into winter hair, and villi grow. At this point, you can add bedding to the mink box to help comb the hair. Due to the short sunshine season, male mink testicle stimulation began to change, in order to control normal development, do not affect each other, each set up a secret room, separate breeding.

3. Control the feed supply. Feed once a day, cultivate satiety all day long, short sunshine cycle, long night sleep, nourish essence and sharpness, nourish yin and store reproductive cells.

Adjust feed quality. Feed mix should be complete, in addition to protein, but also add trace elements, especially zinc sulfate additives, zinc is an important trace element affecting animal fur, zinc is involved in maintaining the normal morphology of epithelial cells and healthy growth of hair, ensure the normal structure and function of biofilm, zinc deficiency makes epithelial cells keratinized and depilated. Vitamin is mainly added beta-carotene, cooked carrots can be added to the feed, 10 grams per day for each mink.

5. Breeding method of mated husband mink. For male minks with strong breeding ability, large sperm quantity and good breeding ability, it is necessary to adjust the quality of feed, promote the reasonable recovery of body structure to normal level, and then enter maintenance feeding. In December, it is necessary to strengthen exercise, carry out exercise training management, insist on guiding circle turning exercise in cage every day, resist wind chill, exercise physical strength and reduce fat deposition. The key points of management are that the breeding minks enter winter feeding, which is the change of endocrine related to growth, reproduction and molting. To provide sufficient nutrients, sufficient good exercise management conditions promote the normal development of the reproductive system of the breeding mink.