Causes of degeneration of rabbit breeds and its prevention

Causes of degradation

Extensive management, inbreeding: only emphasize the characteristics of grazing rabbits, not with concentrate, resulting in insufficient nutrition and variety degradation. Ignoring the blood relationship of breeding rabbits and inbreeding, resulting in poor disease resistance, slow growth, smaller size, deformity and breed degradation.

Lack of strict breeding measures: if we do not pay attention to the selection of breeding rabbits in accordance with the requirements of breed characteristics, we often choose the big, fast-growing, fat and good ones to sell, leaving the small, thin and weak ones to continue to raise, resulting in the gradual degradation of the breed.

The breeding is too early and the offspring are too dense: breeding rabbits are allowed to mate just after sexual maturity, and do not pay attention to the age difference between male and female rabbits, resulting in the old match, the old match is small, and the breed characteristics can not be stably inherited. Some rabbit farmers are eager for quick success and quick profit, frequent blood matching, and do not pay attention to supplement nutrition to the female rabbit, making it weak and sickly, resulting in poor growth and poor disease resistance, resulting in breed degradation.

Prevention methods:

No matter what kind of economic type and breed of rabbits are raised, the core breeds of rabbits that accord with the characteristics of the breed and can reach the production index of the breed should be cultivated and retained in a planned way. The method of selection and retention: after the birth of the child rabbit, the child rabbit to be left first was marked with iodine or color, and its growth and development were often observed, including the primary selection of young rabbit, the selection of young rabbit and the selection of adult rabbit. For the key cultivation in line with the characteristics of varieties and outstanding growth and development, careful management should be carried out from all aspects. When putting into production, pay attention to using the best male rabbits to mate with the best female rabbits.

In the process of breeding, we should constantly purify and rejuvenate the breeds, pay attention to using excellent male rabbits to improve the general or small female rabbits, and then select excellent male and female individuals from their offspring. Must not use ordinary male rabbits or individual small male rabbits to mate with excellent females. At the same time, attention should be paid to the performance breeding of offspring.

Strictly control the first mating age and weight of breeding rabbits, do not mate if you do not reach the first mating age and weight. The offspring of adult male rabbits have relatively stable genetic performance.