Identification of high and low yield ducks
Changzhou Ziying Metal Products Co., Ltd , https://www.ziyingmetal.com
"five look": a look. The head of the duck is slightly smaller, it resembles a water-snake head, long mouth, fine neck, big eyes and protruding eyes, bright and clever, high-yielding ducks; duck head is large, eyes are small, neck is thick, and short is low-yielding duck. Second look back. The duck back is wider, the chest is deeper and deeper for high-yielding ducks, and the duck back is narrower for low-yield ducks. Three look at the body. Deep, long, and wide body are high-yield ducks; short and narrow bodies are low-yielding ducks. Four to see feathers. Duck feathers are dense, delicate, and flexible. Ducks are fine ducks with high-yielding ducklings. Feathers are soft and dull. Ducklings are large, low-yield ducks. Five feet. With a duck neck, if the feet are stretched downwards and do not move, the high-yield ducks will be spread out in each toe; if the feet are bent or kept moving, the ducks will be low-yielding if they close together.
"Four touches": just touching the pubic bones. The high-yield ducks in the laying period have a wide pubic space and can accommodate 3–4 fingers. The low-producing ducks, with narrow pubic bones, can only accommodate 2–2.50 fingers. Second touch the abdomen. High-yield ducks are large and soft on the abdomen, plump and plump on the hips, and well-balanced body structure. Lay ducks are small and hard, and their hips are not full. Three touch the skin. High-yielding ducks have soft, elastic skin with less subcutaneous fat: low-yielding ducks have rough, inelastic, and subcutaneous fat. Four touch the anus. High-yielding ducks with high-yield produce a large cloacal cavity with a half-open state, while ducks with low-yielding produce cloaks that are tight, wrinkled, and dry in the north.
Through the "five sees" and "four touches" of ducks and ducks, high-yield and low-yield ducks can generally be distinguished. In this way, it can be accurately determined whether to continue feeding or eliminating to save feed, increase egg production rate, and increase revenue.