Scorpion is one of the world's most precious fur animals, and it is a omnivorous feed that is easy to obtain. A single mother can have a litter of 6 to 14 births, and it can increase year by year with the length of artificial rearing and the degree of domestication. This requires attention to selecting and breeding and breeding a better population.
First, the choice of weight
The selection and selection of crickets should normally be based on bred bred before May 1. Introduced species try not to buy old breeders. Old breeders are generally eliminated from the field and have a variety of shortcomings that they can't continue to seed, or have injected melatonin. When selecting the species, it is necessary to identify whether it is old or not depending on the body weight, the shape of the finger, the growth of the age, and the tightness of the skin. The weight of young crickets (bred crickets) in the months of August and October is approximately 3.5 to 4.8 kilograms. In November, the gongs weighed approximately 6 to 9 kilograms and the females reached 5 to 8 kilograms. The weight is too light to stay in kind. In addition, the introducer or breeder should also observe the demeanor's demeanor, diet and defecation, whether there is a thick foot pad or ankle, etc., to find out whether the introduced farm has injected two vaccines and whether the previous generation has Biting disease and so on. If no one can combine the above criteria for introduction or retention.
When the cubs are born in the year, they should be selected in three stages.
1. Primary Elective Stage: In May-June, the young larvae are conducted before and after weaning. Primary selection is based on the body weight, coat color, litter size, and growth rate.
2. Re-election stage: In late September and August, it will be 20-25 % more than the number of planned species to be eliminated in order to eliminate redundant parts during box selection. The phase-out part is kept on the skin.
3, selection stage: in mid-November, that is before the skin. When selected, the male and female will be kept at the ratio of 1:3 or 1:4. However, when the herd is relatively small, some public funds should be reserved to prevent the mother-fighting staff from being ill-fated during the breeding period. A year of breeding work.
Second, the choice of plush color
Youths who choose to remain as seedlings should choose to be high in hair density, complete in needle hair, bright in color, and similar in dorsoventral hair. The needle hair should be dark black, white and curled, and should not be used as seed, and the hair should be even and well-grown. The finest, the best color and the finest gray are the best. The quality of the plush of the kind of nationality is the best, the grade of the third grade should not be left, and the lowest the quality of the female's hair is the second grade.
Third, body shape and various parts of the choice
Choose a young species to be well-proportioned, lively and godly, and eye cleansers and noses should be moist. Public servants require large bodies, thick and tall hind legs, long tails and fluffy. The mother-in-law requires a slender body and high limbs. Short and fat mother-in-law can not be purchased in principle and reserved for species use. Regardless of the male and female species, there is no obvious defect in each part when selecting the species, such as one male and one female eyes, a single male testicle, and too few teats on the mother's beak.
IV. Selection and retention of production species
After breeding and breeding in the first year, the scorpion farm has already mastered the breeding ability of all male cubs, the estrus of the female cubs, the calving and the situation of milk production. At the same time, because the puerpera motherland usually has the highest yield in the second to the fourth year, before picking the skin in the first year, all males and females were selected based on records and files. Frequently vomiting and frequent shaking, urine habitually sprinkled in the food bowl should not be reserved for species. For more litter size, milk filling, strong motherhood, more gentle, dense and fine plush, fast recovery after weaning, no evil, should be based on their own development situation left 70% as a core population, adhere to the three generations of no blood within the relationship The male and female cockroaches are used for breeding breeding in the following year. In terms of age structure, it is generally an adult male prostitute with an adult female parent or female parent in the same year, and the public pension is used in the same way as the female parent in the same year. We will continue to step up pure-bred breeding work for future generations and strictly eliminate unsatisfactory offspring. In this way, the quality of the core population of scorpion farms can be upgraded to a higher level.
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