How to Extend the Laying Period in Duck Farming

The egg production of laying ducks is affected not only by factors such as breed, feed, management techniques and age, but also varies greatly between individuals. Therefore, they can be identified by body shape and appearance.

High-yielding laying ducks have large, protruding and spirited eyes, a slightly small head, a slender and long neck, a long body, a broad back, a broad and deep chest, full and balanced development, and nimble movement. When lifted by the neck, both feet stretch straight down without struggling. Low-yielding ducks have small, non-protruding and dull eyes, a large head and thick neck, a short body, and a relatively narrow back and chest, and move slowly. When lifted by the neck, both feet curl up. After a high-yielding duck eats its fill, the esophageal section of the neck bulges and hangs down. This indicates that it holds more feed, has sufficient nutrients, and can lay at a high rate. The opposite indicates low yield. Whether a new duck or an old duck over two years old, before the start of laying, the feathers are abundant, tight and fine. After the start of laying, high-yielding ducks absorb most of their nutrients for egg production and very little for body growth, so the luster of their feathers gradually fades, becoming messy and dull. If the feathers on top of its head, neck and back become sparse, it shows that it frequently mates with drakes, which is also a sign of high yield. Because of the long time spent squatting to lay eggs, its belly feathers are dirty and untidy. Low-yielding ducks have messy and lusterless feathers before the start of laying.