What matters needing attention are there in spring silver fox breeding?

Silver fox is also known as silver black fox, also known as metaphysical fox. It gets its name because part of the needle hair is white, while the root and tip of some needle hair are black, and the middle part of the needle hair is silver-white. Silver-black fox has miscellaneous food habits, small food intake, and stronger disease resistance than blue fox, so it is suitable for family breeding. What are the matters needing attention in raising silver foxes in spring?

I. Construction of Fox House

Generally, the fox house is built into a cage-box type. The cage is a playground, 200 cm long, 300 cm long, surrounded by triangular iron welding frame and electric welding net, leaving a 40 cm high and 30 cm wide hole on one side of the cage and two holes with a diameter of 15 cm on the other side. Hang the water tank outside the cage.

Leave a hole 35 cm in diameter at the bottom of the cage connected to the nest chamber. The chamber is 100 cm long and 90 cm wide, made of 3 cm thick wood, and the bottom can be nailed with a 2 cm seam to facilitate the leakage of feces. The bottom of the fox cage and nest should be 40 cm high from the ground, which is conducive to moistureproof and fecal cleaning.

Second, the reproduction of foxes

Silver fox begins to go into estrus in late January every year. During estrus, the vulva of the female fox is highly swollen, the color is pink, and white and sticky secretions flow out of the vagina. at the same time, the female fox is active, frequent urination, gentle temperament, and constantly makes a hasty courtship cry. At this time is the best time to mate, the female fox should be caught in the male fox cage for mating, using continuous mating or alternate day mating method. After 5 days of mating, the vulva contracted and the food intake increased. The gestation period was 50-61 days, and the average fetus was 7, up to 12-13 and 1 less.

III. Feeding management

The breeding foxes were fed with 30kg compound feed of silver foxes during the breeding period.

1. Not equipped with all kinds of female foxes

Depending on the body condition, continue to feed about 2-3 taels, if the body condition is lower and middle, you can increase the food appropriately, 1% premix 1-2 grams during the breeding season.

2. Female foxes have been bred

The feeding amount of female foxes does not increase within 28 days before pregnancy, but about 2-2.2 taels if the body condition is suitable, and it can be increased appropriately if the body condition is lower. After 28 days of pregnancy, the feeding amount is generally increased by about 5-6 yuan per week. Until the prenatal 3 days, slightly reduce 2-3 money, at the same time add stress spirit appropriately.

3. Breeding male silver fox

Feed about 3-4 taels a day and 1-2 grams of premix during the breeding season.

If you have the task of collecting semen or mating on that day, you can supplement and feed an extra cooked egg.

4. Medication

Female foxes can be injected with propranolol to prevent infection during mating or insemination, or whole groups of antibiotics can be given before the peak of mating.

Yingling can be used in combination with Yingling during medication or epidemic prevention to reduce stress and improve physical resistance.

IV. matters needing attention in breeding

The main results are as follows: 1. During the breeding period, in addition to keeping the feed nutritious, full price and easy to digest, it also requires feed diversification and fresh quality to ensure the complementarity of essential amino acids and adequate intake of vitamins and minerals.

(1) the formula feed of silver fox produced by Harvestre is recommended for breeding foxes.

(2) the self-prepared food uses 1% of the breeding season premix produced by Harveast to improve the anti-stress ability of foxes and promote gonadal development.

2. Create a quiet breeding environment, ensure normal light, and reasonably arrange male and female fox cages to stimulate estrus. Outsiders should not be allowed to visit. The breeders are stable and do not make any noise in the field.

3. Check the estrus at the right time, mark it reasonably, arrange the mating at the right time, complete the mating after mating or insemination for 3-4 times, and transfer to the birth house to raise the fox. it is not necessary to open the litter chamber.

Male foxes collect semen or mate once a day. After 3-4 days in a row, they can rest for 1-2 days.

4. Generally, as of March 5-10, the pregnant female fox will be arranged on the sunny side to ensure sufficient natural light exposure.

Do a good job in the sanitary disinfection of the insemination room, clean and disinfect the insemination equipment in time according to the regulations, and prepare the equipment for the second day.

5. If the temperature is too low and the automatic drinking water equipment can not continue to be used, the particles can be soaked and fed to ensure the supply of drinking water. Can supplement drinking water at noon every day, can add tocopherol in the water, after breeding to add stress spirit, at the same time to ensure the cleanliness and hygiene of drinking water.

6. Do a good job in environmental hygiene, cage hygiene, wash drinks and utensils, and disinfect the whole group site once a week.

7. During the period of adjusting the body condition before mating, strictly eliminate the reserved foxes with problems.

8. when the pregnant female fox has a poor appetite, priority should be given to adding multivitamins to increase the appetite. If there is a disease, treatment is the first, and fetal protection is the second.