Feeding and Management of laying cycle and laying period of laying Duck

The main purpose of the feeding and management of laying ducks during the laying period is to increase the laying rate and egg weight, reduce broken eggs, save feed and reduce the death rate. According to the week age, laying rate and physiological characteristics of laying ducks, it can be roughly divided into three stages: early laying stage, middle laying stage and late laying stage. Different nutrients should be provided and corresponding management measures should be adopted in each feeding stage to meet the nutritional needs of laying ducks.

Feeding and management of laying cycle and laying period of laying ducks

I. feeding and management in the early stage of egg production

The key point in the early stage of egg laying (150-300 days old) is to increase the nutrient concentration and feeding times in the diet to meet the nutritional needs and ensure that the ducks reach the laying peak smoothly. When the laying rate reaches 50%, each duck adds 10 grams of fishmeal per day; when the laying rate is 70%, 15 grams of fishmeal is added; when the laying rate reaches more than 90%, 18 grams of 20 grams of fishmeal is added to maintain this level later. The feeding times increased from 3 times a day to 4 times a day, 3 times in the day and 1 time at 10: 00 at night. The average light intensity is 14 hours, and it should increase gradually from short to long. During this period, the bigger the duck eggs, the faster the yield increase, indicating that the better the feeding and management. Otherwise, find out the cause in time and improve it. The laying rate increased gradually, especially in ducks that began to lay in early spring. Generally, at the age of 200 days, the laying rate can reach about 98%. If the egg laying rate goes up and down or even decreases, it is the reason of feeding. The duck is sampled and weighed once a month (when the duck is fasting in the morning). If the average body weight is close to the standard weight, it shows that the feeding management is proper; if it exceeds the standard weight, the proportion of coarse feed should be reduced or increased; if it is lower than the standard weight, it means that the feed quality should be improved.

2. Feeding and management in the middle stage of egg production

In the middle stage of laying (301-400 days old), the key point is to ensure the high yield of ducks, and strive to maintain the peak laying period beyond 400 days old. The nutrient concentration of the diet should be slightly higher than that of the previous period. Each duck should be fed with 22 grams of fish meal every day, or fed with a diet containing 20% protein, 150 grams per duck per day, and more green feed and calcium. Feed 150 grams of aquatic plants per day, or add multivitamins and 1%-2% granular shell powder. The light is stable at 16 hours a day. The temperature should be maintained at 5 ℃ ~ 10 ℃. If it is above or below this standard, it should be adjusted. Daily operating procedures remain stable. At this time, if the eggshell is smooth, thick and shiny, it means the quality is good. If the egg shape becomes longer, the shell is thin and bright, there are sand spots, or even soft-shell eggs, indicating that the feed quality is poor, especially the lack of calcium content, or lack of vitamin D, should be supplemented. If the laying period is about 2 o'clock at night, the laying time is concentrated and the eggs are laid neatly, it shows that the feeding and management is proper. Otherwise, measures should be taken in time.

III. Feeding and management in the later stage of egg production

The key point is to determine the feed quality and feed quantity according to the body weight and laying rate of laying ducks in the later stage of laying (401-500 days old). If the laying rate of ducks is still more than 80%, and the weight of ducks decreases slightly, animal feed should be added to the feed properly; if the body weight increases, the metabolic energy in the feed should be properly reduced or the feed intake should be controlled; if the body weight is normal, the crude protein in the feed should be slightly higher than that in the previous stage. The light is maintained at 16 hours a day, driving ducks in the shed for about 5-10 minutes three times a day. When the quality of eggshell and egg weight decreases, cod liver oil and minerals are supplemented. Keep the microclimate and operation procedure in the duck house relatively stable and avoid stress reaction.