Breeding management of fur animal breeding preparation period

The preparation period for breeding mentioned here refers to the three months prior to breeding, which is the preparation period for the breeding of the fox. After the autumnal equinox (September 21~23), the sunshine is gradually shortened and the temperature gradually decreases. The reproductive system of the fur animal changes from a resting state to a growth state, and the reproductive organs begin to develop. Endocrine activities related to reproduction gradually increase. The genital organs develop slowly at the beginning and develop faster after the winter solstice (December 21 to 23). By the second year of mating, the testicles of the male animal can produce mature sperm, and the ovary of the female animal can produce mature eggs. In the preparation period for breeding, the body weights of cockroaches, foxes and baboons have changed significantly. The first period (10-November) continues to increase and it is highest in December. Afterwards, it gradually declined, and it was particularly noticeable during the breeding period. This is the normal physiological change of the pupa. During the breeding process, we should adjust the structure of the feed according to these physiological changes of the fox, and appropriately increase or decrease the composition of the feed to ensure that the fur animals participate in breeding in the best condition. To this end, the following points should be noted: To feed the fox with sufficient amounts of feed, the fox’s weight gain is faster during this time. We must fertilize some of the fur animals we use in this period to store a lot of energy. To ensure its smooth winter. During this period, the fur animal's demand for protein, amino acids, vitamins and minerals in feed is not high, but it must be ensured that the amount of energy feed is sufficient and the variety of micronutrients (vitamins, amino acids, minerals) must be diversified In addition, the content of fatty proteases, carbohydrate enzymes, and amylases in the feed should be abundant, and the crude fiber content in the feed should not be too high. In terms of feed types, the use of proteinaceous materials such as fishmeal, chicken by-products, soybeans, and cakes has been gradually reduced to maintain a low supply level, and the amount of corn, wheat, and other energy feeds should be gradually increased. The foxes and foals are fed 800-1200 g (water-containing, and the specific feeding amount is related to the size of the individual). The foxes are slightly less, and the daily feeding amount of mink is about 250-400 g (the specific quantity and individual size related). The animal feed can only account for 15% to 25%, and the fox is slightly more. The proportion of leeches should be about 30%. Feed twice a day, feed 40% of the diet early and feed 60% late. The specific feeding amount is based on the actual individual size of the meerkat and the actual feed intake, and there should be a slight surplus in each food bowl. Studies have shown that the development of reproductive organs in fur animals is regulated by the natural photoperiod and light. When the sunshine time after the autumn equinox is shorter than the dark time, the reproductive system begins to develop slowly. With the further extension of daylight hours during the day, the elk, silver black fox, clam and blue fox enter the breeding season one after another. If in the critical period of development of the reproductive system, artificially altering the light cycle and light rhythm will cause disorder of the reproductive system of the female animal and adversely affect the estrus breeding; the response of the fox to light is the most sensitive. 2.11~January of January This is the time when the temperature is the lowest in a year. At this time, the fox's feed intake is reduced and the lice start non-sustained hibernation. Therefore, the amount of feed fed should be reduced accordingly. The scorpion begins to feed once a day. As the weather becomes colder and its intake decreases, it can be fed once every other day. When it is cold, it can be fed once every three days. The amount of feeding depends on the body condition and feed intake. Fox otters hover around 100 grams. According to their body condition and feed intake increase and decrease accordingly. During this period, attention should be paid to adjusting the body condition of the breeding animals, because over-fat or over-weight is not conducive to breeding. The body condition most suitable for breeding is medium or middle-lower. In fact, at this time, the fox must be in the middle and upper body condition is the best, after a winter, will be due to natural consumption and return to a moderate body condition. However, there are some exceptions that need to be adjusted by us. The adjustment of body condition is not to adjust its overall size, nor to adjust its length, but to adjust its body's width and fatness. Body fat adjustment methods: appropriate to reduce the intake of energy substances, increase the intake of crude fiber. When the total amount of crude fiber accounts for more than 4% of the total dry matter content of the feed, the animal has a feeling of satiety, but due to the fact that the crude fiber consumes a lot of energy in the digestion process, the animal's fatness is reduced. In the production, the feed is generally reduced by increasing the amount of wheat bran in the feed, a large amount of vegetables containing crude fiber (note that they are cooked), and appropriately increasing the feed ingredients such as water, bran, peanut meal or shell flour, alfalfa meal. The purpose of the nutrition standard or the method of increasing the exercise (the daily lure time is increased by more than half an hour) to reduce the animal's fatness; the method of adjusting the body's thinness: appropriately increase the content of energy substances (corn, flour, various animals or Plant oils and fats, etc.), improve nutrition standards in feed, increase the quality of feed dry matter, and use methods such as adding fluffy grass or electric cookers to increase the animal's sensation. When adjusting the body condition, it is necessary to prevent the use of hunger and fertilizer reduction methods. Hunger and fat reduction will detrimentally affect the health of the foxes and induce self-bite. The body condition of the animals cannot be too fat or too thin, and the over-fertilization is slow, unfavorable for mating, and some are not estrus. Being too thin is not conducive to estrus and will delay breeding. Excess body fat or too thin body can affect the follicle development of the female fox, thus affecting the number of ovulation, reducing the conception rate and the number of litters. There is a jingle: "Early body condition is good, not fat or thin, early in the heat. It is not unreasonable to have a good birth and more than survive." At this time, the fur animal's demand for protein, amino acids, vitamins, and minerals in the feed is still not high, but all kinds of micronutrients (vitamins, amino acids, minerals) must be available, and it should be gradually By reducing the amount of energy feed in the feed, the amount of fatty proteases, carbohydrate enzymes, and amylases in the feed can be gradually reduced, and the crude fiber content in the feed should be appropriately increased. In feed types, proteinaceous materials such as fishmeal, chicken by-products, soybeans, and cakes are still maintained at low supply levels. It is necessary to gradually increase bran feeds and reduce the use of corn and wheat. Let fur animals not only feel full, but they don’t grow too fat. They also reduce feed costs. During this period, we must add mat grass in the nest, do cold insulation work, and keep the nest box clean and dry, keep the quiet of the box, to minimize human interference, especially for those who are thin and physical, to strengthen management to ensure It passed the winter. But for those who are too obese, they can also reduce or not add grass, use cold stimulation, increase their activity, promote their body fat consumption, allow them to achieve "slimming" purposes, and facilitate breeding. 3. After January, the weather began to warm up, and the amount of fox's food began to increase. The fox's otters were fed twice a day 10 days before breeding. Feeding 1 or 2 times a day, the amount of feeding gradually increased. During this period, the fur animal's demand for protein, amino acids, vitamins, and minerals in feed should be appropriately increased compared with the previous period (it can also be met by increase in feed intake). The energy feed in the feed should be Maintaining at an appropriate level can gradually reduce the crude fiber content of feeds. For feed types, proteinaceous raw materials such as fishmeal, chicken by-products, soybeans, and cakes should be appropriately increased, and feeds for bran should be gradually reduced. The amount of corn and wheat should be maintained at a stable level. The focus of this period of raising is to adjust the body condition of all species of animals to a moderate or moderately low level, and prepare the body for mating. At the same time, we must also do a good job of deworming (remove Trichinella spiralis, nematodes, aphids, protozoa and in vitro fleas, lice, lice), immunization (mainly prevent canine distemper, infectious gastroenteritis, epidemic type B (Encephalitis, Gardnerella foxes) and disease prevention work (appropriate feeding of a small amount of beneficial microorganisms or antibacterial and anti-inflammatory drugs such as cephalosporins, oxytetracycline, furazolid etc. protects animals from E. coli and Salmonella) . In particular, otters should also be dewormed. Do not use the same kind of insect repellent for continuous use. An insect repellent is best used for only one year. Conventional anthelmintic drugs, such as chlorhexidine, glucagon, avermectin, ivermectin, etc. can be used. But do not use an insect repellent every year. Pay attention to the alternate use of insect repellents. Deworming and vaccination, the best interval of about 7 days is better, to avoid the two stress overlap, reduce the animal's resistance to disease.

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