How to feed laying ducks during laying period

The feeding of the laying duck during the laying period is very critical, how to grasp the laying period of the laying duck? Now we will provide you with some experience.

Due to the continuous laying of eggs, a lot of nutrients are consumed. For example, if an egg is laid every day and the weight of the egg is calculated as 65g, 8.75g of crude protein (13.5% of the crude protein in the whole egg) and 9.43g of crude fat (14.5% of the total egg) are required. In addition, a lot of inorganic salts and various vitamins are needed. If the nutrients in the feed are not comprehensive, or lack of certain elements, the egg production will decrease, such as the number of eggs reduced, the laying time delayed, the eggshell rough or the duck weight loss, loose feathers, loss of appetite, slow reaction, fear of going into the water, and so on. Therefore, laying ducks require high quality feed.

Feed for laying ducks during laying period

1 Prophase of laying eggs

It is generally during the period of 17 to 24 weeks old of female ducks, when the ducks have reached body maturity and sexual maturity, the ducks have begun to lay and the laying rate has increased rapidly, and the laying rate of high-yielding ducks can reach 80% at the age of 24 weeks. At this stage, the focus of feeding management is to pay close attention to the rising trend of egg laying rate and egg weight, and then increase the amount of feed and improve the nutrition level, so as to reach the peak of egg production as soon as possible. In the early stage of laying, it is recommended to use the feeding standard during the laying period, with special attention to the levels of energy, protein, calcium and phosphorus, requiring metabolic energy 11.2MJ, protein 18%, calcium 3.5%, phosphorus 0.5%. Ducks without green feed need to increase vitamins appropriately. The principle of light in the early stage of egg laying is: it should only be prolonged, not shortened, and the light should be increased by no more than 0.5 hours per week until the age of 22 weeks reaches 16 hours. The light intensity should be 5lx, and a 25W light bulb with a height of 2m wattage should be installed every 18 square meters. Various stress factors should be reduced in the initial laying stage to provide an ideal laying environment for laying ducks in order to promote egg production into the peak period.

2 in the middle stage of egg laying

Also known as the peak period of egg production, generally at the age of 24 to 46 weeks. The focus of this stage of management is to maintain the peak of egg production as much as possible, and strive for the peak of egg production to exceed 46 weeks of age. During the peak period of egg production, feed quality should be improved to ensure its nutritional needs. Feed a mixture containing 18% to 20% protein, and appropriately increase animal feed, granular calcium and green feed. The feed type of this period is generally unchanged, but the feed quantity should be adjusted by observing the changes of feed intake, laying rate, egg weight, laying time, shell quality, feces and duck feathers. During the period of high production, the laying rate of laying duck remained unchanged, and the egg weight conformed to the standard egg weight of this breed at the age of 300 days (260 ~ 280 days old). The body weight of Shao duck was 1450-1500g and that of Jinding duck was 1600g-1700g, which indicated that the feeding quantity was suitable. At this time, if the body weight is reduced, it is necessary to increase the animal feed, and when the body weight increases, the metabolic energy in the feed can be reduced, an appropriate amount of green roughage can be fed or the feed intake can be controlled, but the animal feed remains the same. large varieties can be slightly higher than the original body weight level when entering the peak period, with specific reference to the feeding standards of this breed. In addition, the supplement of gravel is also indispensable, and should be continuously replenished throughout the feeding process; the light should be kept constant for 16 hours a day, with hazy light at night.

3Prophase of egg laying

It refers to the laying period of laying ducks at the age of 47 to 72 weeks. After more than 5 months of continuous laying, the peak of egg production is difficult to maintain. Generally, the decrease should not exceed 1% per week, but for high-yielding varieties, if properly managed, a high laying rate can still be maintained. However, if it is not managed properly, the laying rate will also decline and enter the non-laying period ahead of time. Generally speaking, when the laying rate of ducks about 72 weeks old drops to 60%, they will enter the non-laying period or be eliminated for meat use. The key point of management at this stage is to determine the quality and amount of feed according to the duck's body weight and laying rate. The laying rate of ducks is still more than 80%, while the weight of ducks tends to lose slightly, so animal feed should be added to the feed; if ducks gain weight and have a tendency to get fat, but the laying rate is still about 80%, at this time, the energy level in the feed can be reduced, and an appropriate amount of green roughage or increase the amount of exercise of the ducks. If the laying rate of normal body weight is still high, the protein level in feed should be slightly higher than that of the previous stage; if egg weight and eggshell quality decrease, protein feed, cod liver oil and inorganic salt additives should be added. The light lasts for 16 hours, and when the duck is 60 weeks old or the laying rate drops to 80%, the light time can be extended to 17 hours. The management of ducks should pay attention to more release and less clearance, promote exercise to prevent obesity, and at the same time pay attention to the elimination of few ducks.

For ducks entering the laying period, in order to maintain high and stable yield, on the basis of being "full, clean and quiet", we should also learn to observe every day.

Observe the shape of the egg. If the big end of the egg is small, it is short of breakfast, and the small head is less than medium food; if the egg is soft or has trachoma, it is relatively rough, indicating that there is a lack of calcium or vitamin D in the diet.

Second, observe the laying time. The laying time of ducks is generally concentrated from 2: 00 a.m. to 8: 00 a.m. if the laying time can not be concentrated every day, or even lay eggs during the day, it is necessary to replenish the fine feed in time.

Third, observe the weight of ducks. After laying eggs for a period of time, the weight of ducks should be sampled in proportion. If the initial weight of eggs can be basically maintained, then the feeding and management is more appropriate. If the weight is too light or overweight, the diet should be adjusted in time to restore the normal weight of ducks as soon as possible. It is normal that there is a slight increase in the later stage of egg laying.

Fourth, observe the weight of eggs. The egg weight of the laying duck is about 40 grams at the first laying. The egg weight reaches 90% of the standard egg weight in about 150 days of laying, and reaches the standard egg weight in about 200 days. If the egg weight increases too fast and too slowly, it is necessary to find out the reasons and improve the management method.

(5) to observe the increase of laying rate. The laying rate of excellent egg duck breeds generally reaches 50% in about 150 days and enters the peak laying period in about 200 days, with a laying rate of 90%. If the egg laying rate rises too slowly or fluctuates up and down, it means that the situation is abnormal and pay attention to find out the reason.

Six, observe the feathers of the egg duck. If the feathers are smooth and close to the body, it means that the nutritional status is good, otherwise, the quality of feed should be improved.

Seven observe the appetite. No matter in captivity or grazing, high-yield egg ducks have a very strong foraging ability and graze for food. Otherwise, find out the cause.

Eighth, observe the frolicking condition of ducks. High-yield egg ducks dive for a long time after launching, and their feathers are smooth and non-wet after landing. If you are afraid of going into the water, do not take a bath or wet hair after entering the water, and you are weak in action, you should find out the cause and feed animal protein feed and cod liver oil.

Nine observe the state of mind. Healthy ducks are energetic, flexible and quiet, while sick ducks are dispirited, stand apart from the group, and droop their heads and wings.

Ten to observe the color of feces. The feces of healthy ducks are not hard or soft, the color is gray and black, and there is a small amount of urate deposition on the surface. The feces of diseased ducks are green, white, golden and other abnormal rare feces.