Hare seasonal breeding characteristics

In order to scientifically arrange the season and time for rabbits to be rabbits, and to produce rabbits and rabbits, it is necessary to select a suitable breeding period.

The hare is a breeding season from January to September every year, and the pregnancy period is about 40 days. The day when the female hare laid the puppies started the mating of the second child. A female rabbit breeds three to four children in one year. Under normal circumstances, three of the first littermates were in the same year. Two or three children 3 to 5, normal 7 or so later.

(l) The spring climate is mild, the forage is abundant, the public rabbit is sexually active, and the maternal rabbits are highly fertile. This is a good season for breeding rabbits. The male hare has the highest ejaculation and sperm density in the spring, and the female hare has a estrus rate of more than 80%. The fertility rate during mating period is as high as 90%, and the average litter size is 7-8. Therefore, farmers must seize this favorable opportunity to do a good job of breeding. However, due to the rainy season in the spring of South China, the humidity is too high and the puppies are susceptible to disease. Therefore, we must do well in preventing moisture and preventing diseases during breeding.

(2) In summer, the climate is hot, the temperature is high and humid, the hare appetite decreases, the constitution is weak, the sexual function is not strong, the fertility rate of mating is low, and the litter size is small. In summer, the spermatozoa of the male wild rabbits decreased in vigor, the density decreased, and the number of abnormal sperms increased. The estrous rate of female hares is only 20%~40%, the fertility rate is 30%~40%, and the average litter size per litter is 3~5. If the female rabbits have good conditions in summer and shade and heatstroke protection, and the temperature is lower than 32°C, breeding breeding can still be arranged properly.

The rational arrangement of mating female rabbits in summer can increase the economic benefits of wild rabbits throughout the year. For the public rabbits, special cooling protection can be adopted. Arrangements should be made in a cool place. The temperature should be controlled between 22 and 28°C. At the same time, pay attention to feeding the rabbits with full-price diets rich in protein, vitamins, and minerals; Hares should pay attention to the diet to provide nutrition, shade and heatstroke. Breeding time should be arranged in the early morning or late afternoon. Care should be taken to ensure that empty female rabbits are bred before the end of June and after mid-August, avoiding breeding in July, and preventing high-grade male rabbits from having poor semen quality and difficulty conceiving. The breeding method can be combined with double breeding and repeated breeding. Observe female nursery rabbits in order to observe the time-honored breeding of wild mother rabbits.

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