One, overage It is advisable to use the seedlings for a period of 1 to 4 years. The female breeding rate was 79.67%, 93.7%, 100%, 100%, and 70% from 1 year old to 5 years old, and the pregnant women were 78.7%, 88.7%, and 96.1% respectively from 1 year to 5 years old. 95%. Therefore, the female parent must not exceed 4 years old. Second, poor body Those with small size, deformity, incomplete limbs, or suffering from self-bite and chronic diseases should not be left in the species. Third, low fertility Generally, no fewer than 4 females are born at the beginning of the breeding season, and no less than 6 females older than 4 and below 5 years of age are high-yielding female parents. Otherwise, they should be eliminated. Each year, breeding stocks should be bred with more than 4 females and the number of servings should be more than 10 times. Otherwise, they should be adjusted. Fourth, plush color The color, luster, density, hair length, and evenness of distribution were used to identify the superiority and inferiority of the species. For example, the dark brown male mantle becomes brown or light brown, the density is sparse, the distribution is uneven, the length is too long, and the sub-needle hairiness is not enough. Disposable Mask,Gauze Face Mask,Disposable Face Mask,3-Ply Blue Mouth Mask BIQIAO MEDICAL TECHNOLOGY(HENAN) CO.,LTD , https://www.medical-technology.net
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