1. The increase of feed intake at the initial stage of laying in the early stage of laying should follow the principle of incremental steps. Common mother ducks begin to lay eggs at 21-22 weeks of age. After laying, they should be fed at a rate of 5-10 g per duck per week according to the weight of the male and female ducks to encourage ducks to reach 5% of the eggs as soon as possible. rate. In the production practice, some farmers have rushed to start production in advance (some ducks have started to lay eggs in 135 days or so), the egg weight of the first egg production and the early egg production peak, etc., and they have rapidly increased in the early stage of laying eggs. Feed intake, sometimes up to 25 weeks of age, has reached the maximum amount of feed, which will inevitably affect the economic efficiency of the entire laying period. First of all, too early production, combined with a large initial egg production, is likely to cause the mother's rectal prolapse; Second, the body maturity and sexual maturity of the breeding duck is inconsistent, especially the male duck, although there is sexual desire, but also to crawl, but its semen Poor quality, generally lower hatching rate of fertilized eggs. 2. During the early egg-laying period in the pre-laying period, the amount of feed should increase rapidly to induce ducks to reach the peak of egg production as soon as possible. The maximum amount of feed should be reached 2-3 weeks before the peak of egg production. If the increase of feed amount is delayed, the loss of egg production will usually be 2%-3%. At this time, whether the egg production rate of the mother duck has reached the peak. The method is to adopt a tentative feeding method: Each duck increases 5-1% of the material. After 4 days of feeding, the change in laying rate is observed. If the rate of laying is increased, feed it according to the increased amount of feed, such as laying rate. No change, immediately return to the original amount of feed, this method can be used multiple times. 3. In the production practice, during the peak production period, in order to ensure that the peak period of egg production arrives on schedule, the maximum amount of feed in the early stage of laying is generally 10% to 15% higher than the amount required for the peak period of the production of ducks. The average daily consumption of cherry-meat ducks during the peak period of egg production is 220-250g/only. Do not reduce the amount of feed during the peak period of the whole production, and always maintain the highest level. However, after the arrival of the peak of production, the 10%-15% higher feeding amount must be subtracted. Otherwise, the duck will be easily over-fertilized, especially if the duck is difficult to crawl or is unwilling to crawl, the female duck will also Due to over-fertilization, the egg production rate decreased. After the peak period, the reduction should be combined with the age of the laying eggs, the egg production rate, and the weight of the eggs. After the egg production rate no longer rises, it is necessary to start cutting materials within 2 weeks, usually at the age of 31-32 weeks. The egg weight should also be above, and the reduction can be larger. Each duck consumes about 10-15g less material. After 2 weeks, the duck's feeding amount is stabilized at the required maximum feeding amount, and constant feed feeding is adopted. 4. After 48 weeks of age, the egg production rate began to decrease at a rate of 1% to 2% per week after 48 weeks of age. Since this elbow duck has fully reached body maturity, and the egg weight remains stable, the female duck The demand for nutrients begins to decrease. If the amount of incontinence is not reduced at this time, it will inevitably result in the deposition of fat, which will cause the fatness of the female duck body, resulting in a sharp decline in the rate of egg production in the later period and a waste of feed. Therefore, from 48 weeks of age, it should be gradually reduced as the egg production rate declines. Reduced material can also take a tentative reduction method: that is, the average daily consumption of ducks reduced the knot, even fed 4d. If the rate of egg production declines during this period is relatively large, the amount of raw materials should be immediately restored; if it is normal, it should be proved that the reduction is correct and should be fed in accordance with the reduced star. This method is repeated once every 10 days. Under normal circumstances, the feeding amount of ducks in the late stage of laying is 80%-85% of the peak feeding amount.
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