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Pure breeding of ducks
Purebred breeding uses the male and female ducks in the same breed for breeding. This method can maintain the good traits of a variety. It can be selected by purposeful breeding and can continuously improve the production capacity and breeding value of the breed. Duck farms or commodity production sites are widely used. However, it should be noted that the use of this species breeding, prone to shortcomings of inbreeding, especially small-scale duck farms, a small number of ducks, it is difficult to avoid inbreeding, resulting in decreased viability and production performance of offspring, physical weakness The incidence of mortality increased, the fertilization rate of hatching eggs, hatching rate, egg production rate, egg weight and body weight will decline. In order to avoid inbreeding, blood renewal must be carried out. That is to say, the bred ducks of the same breed with good physique and excellent production performance should be introduced every other year.