How to judge the disease of laying duck

Egg duck sick judgment: observe egg shape If the big end of the egg is too small, it is less early food, and the small head is too small to eat; if the soft shell egg or eggshell has trachoma, it is rough, indicating that the diet lacks calcium or VD. Observe laying time Duck laying time is generally concentrated in the evening 2:00 to 8:00, if the laying time can not be concentrated every day, or even lay eggs during the day, it is necessary to timely feed concentrate. Watch the weight of the duck. After laying eggs for a period of time, the weight of ducks should be sampled according to proportion. If the weight at the beginning of laying can be basically maintained, the feeding management should be proper. If the weight is too light or too heavy, the diet should be adjusted in time to restore the duck to normal weight as soon as possible. A slight increase in late-laying is normal. observed egg weight Egg weight of laying duck is about 40 grams at the beginning of laying, egg weight reaches 90% of standard egg weight at about 150 days, and reaches standard egg weight at about 200 days. If egg weight increases too fast or too slowly, it is necessary to find out the reason and improve management methods. Observe the increase in egg production Excellent laying duck breeds (such as Shaoxing duck, Jinding duck and Campbell duck) generally have an egg laying rate of 50% in about 150 days, and an egg laying peak of 90% in about 200 days. If the egg production rate rises too slowly or fluctuates up and down, the situation is abnormal, pay attention to find out the reason. Observe the feathers of laying ducks If the feathers are smooth and close to the body, the nutritional status is good, otherwise, the quality of the feed should be improved. Appetite observation No matter in captivity or grazing, the foraging ability of high-yield laying ducks is very strong, and there is a situation of grabbing food. Otherwise, find out why. Watch the ducks swim. High-yield laying ducks dive for a long time after entering the water, and their feathers are smooth and not wet after landing. If afraid of water, do not wash or wet hair after water, weak action, at this time to find out the cause, and add animal protein feed and cod liver oil. Observe mental state Healthy duck spirit lively, flexible action, rest quiet, sick duck spirit dispirited, isolated stand, head drooping wings. Observe stool color Healthy duck feces are not hard or soft, gray black in color, and a small amount of urate deposits on the surface. The sick duck feces have green, white, golden yellow and other abnormal thin feces. The above is for reference only.