The quality of ducks directly affects the growth rate, physical size and laying performance of offspring. How to choose?
Methods as below:
Body appearance
Body appearance is an important feature of a breed, and it is also the main basis for productivity. Therefore, the selected duck must have the inherent characteristics of the breed, and at the same time should focus more on the choice of economic type.
(1) Selection of breeding drakes
The head is large, the neck is thick, the chest is deep and prominent, the back is wide and long, the mouth is flush, the eyes are large and bright, the legs are thick and powerful, the physique is robust, the spirit is lively, the growth is fast, the feathers are close, the lustre is shiny, and the sexual desire is exuberant.
(2) Selection of female ducks
For the purpose of egg production, the selected female duck should be long and plump but not obese, long in mouth, large and flexible in eyes, slightly slender in head, thick in legs, wide in distance between legs, deep in chest, full in hips. Sagging without rubbing the ground, the tail wide and flat, walking stable, strong feeding power, fine feathers, ducks and stripes must be fine. If the purpose is to produce meat, choose a duck that has a long body, a wide back, a deep and prominent chest, plump feathers, slow movement, gentle temperament, and fast growth.
[Select according to productivity]
(1) Egg production. The egg production power is related to factors such as the maturity of the duck, the morning and evening of the moulting period, and the weight of the egg. Generally speaking, the age at the time of opening is early, the feathers are late, the egg type is large, the duration of egg production is long, and the egg production is high. On the contrary, the egg production is low.
(2) Meat production. Meat production is one of the important indicators for the selection of meat ducks, including body weight, growth rate, fattening ability and meat quality. Therefore, it is better to choose the fastest growing and the same weight in the same group when selecting seeds.
(3) Fertility. The fertility of ducks usually refers to egg production, fertilization rate, hatching rate and survival rate of ducklings. The level of fertility is closely related to economic efficiency. High fertility results in large economic benefits, and vice versa.
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