The best mating period is 4 ~ 5 years old, the sexual maturity is 8 ~ 10 months old, the annual estrus is 1 time, 10 days or so, the ovulation period is 2 ~ 5 days, and the mating period is from late April to late May. Both artificial insemination and natural mating are possible, and the pregnancy is about 52 days. The average litter size was 6 ~ 10.
The lactation period is 45-55 days, and the newborn baby's weight 100g and body length 15cm are above. A month later, the little fox grew faster. Normal body temperature is 39℃, pulse wave is 60 ~ 1 10/ min, and breathing is 20 ~ 30/ min.
The hair removal period is from March to 65438+June, and the late hair removal should be eliminated.
The best introduction period is September ~165438+1October.
Composition of energy substances in feed (Finnish formula)
Breeding period (65438+February 1 to April 30th):
Carbohydrate 15% ~ 20%
Protein 40% ~ 45%
Fat 30% ~ 35%
The calorie per kilogram of feed is 1250 ~ 1400 calories.
Lactation period (May 1 to June 3 1)
Protein 45% ~ 50%
Fat 25% ~ 30%
The calorie per kilogram of feed is 1350 ~ 1550 calories.
Growth period (August 1 to August165438+1October 30th):
Carbohydrate 18% ~ 23%
Protein 32% ~ 135%
Fat 40% ~ 45%
Raw ingredients in feed
Fish: Baltic herring/cod15% ~ 25%; Slaughter leftovers: pig/chicken/cow 25% ~ 35%; Protein material: 3% ~ 5% of meat and bone meal, 2% ~ 4% of fish meat and bone meal; Soybean protein: 2% ~ 3%; Fat: 2% ~ 5% (depending on the fat content in other raw materials);
Barley and wheat:15% ~ 23%; Water: 20%.
The daily intake is 0.5 ~ 7.5 kg, and it is fed twice a day.
Feeding cage length140cm× width 80cm× height 70cm. The production box is 80 cm long × 50 cm wide × 50 cm high.