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The early and early stage of production of young ducks are robust and energetic at the time of opening, and the focus of feeding and management at this stage is to push the rate of egg production to the peak as soon as possible.
Nutrition: According to the rising trend of egg production, increase the nutrient concentration of the diet and increase the feed intake to meet the nutritional needs of the egg production. The use of egg production at the age of 20 weeks requires a gradual increase of crude protein from 15.5% to 19% to 19.5%. The feeding mode transitions to free feeding, and feed intake is generally seen from the mother duck group (21 weeks~22). Immediately after the week, each duck increased its feed by 6 grams to 10 grams per week, prompting the duck group's egg production rate to rise rapidly.
Look at the increasing trend of egg weight: The initial egg weight is about 60 grams, and by 30 weeks it should reach the standard egg weight (85 grams to 90 grams). In the early and early stages of egg production, egg weights are constantly increasing, and the weight gain is fast. This shows that the management is better, the momentum for weight gain is slower or the egg weight fluctuates. Find the cause from feed nutrients and feed intake.
Looking at the rising trend of egg production rate: The egg production rate at this stage is rising continuously, and by the latest 32 weeks of age, the egg production rate should reach more than 90%. If the egg production rate fluctuates or even decreases, attention should be paid to the health condition of the ducks, the nutrient concentration of the feed, and whether or not mildew occurs in the feed.
Pay attention to weight changes: Cherry Valley meat duck 20 weeks of age standard weight: 3.12 kg ~ 3.15 kg of ducks, ducks 4.1 kg ~ 4.13 kg. In the early and early stages of egg production, fasting is performed on a weekly basis and the body weight is stable. This indicates that proper feeding and management, and a significant decrease or increase in body weight, indicate problems in management. In general, mother ducks will not have too much nutrients during this period, and they should focus on preventing undernutrition and duck body weight loss, but at the same time prevent the natural mating of the duck from gaining weight.
Strengthen the sanitation and disinfection work: the sports field and the surrounding environment should be disinfected once a day. The duck house should be kept clean and dry. It is necessary to prevent the use of ducks when the egg production rate reaches 50% and 90%. Generally, 0.2% of strong mold must be used. Suyuan powder spices feeding.
The focus of feeding and management at this stage of the peak period of eggs is to ensure high yields, and strive to maintain the peak of egg production until 48 weeks of age.
Nutrition meets the need of high yield: The protein content in the diet can reach about 20%, while the methionine + cystine should be added properly, and the content should be above 0.68%. To properly replenish the appropriate calcium and phosphorus, and mix in the diet with vitamins A, D, etc., can also be added to the diet in bone meal or shellfish piled on the playground, so that ducks feed freely. In summer, it is appropriate to feed green feed to increase the appetite of ducks and ensure that each duck feeds about 240 grams per day.
The amount of feed should be properly controlled: the average daily feed intake of each duck is 225 to 250 grams. Too much feed will increase the cost on the one hand, and it will cause over-fertilization on the ducks, affecting the fertilization of the eggs. rate.
Pay attention to the health status of the duck group: Ducks with high egg production rate are full of energy, diving for a long time after entering the water, and the feathers are smooth and wet when going ashore. The egg production rate of this duck will not decrease. If the ducks are inactive, do not want to go into the water, or even sink, indicating that the ducks are undernourished or have diseases, they should immediately take measures to supplement animal protein feeds or prevent diseases. Keep the environment quiet and avoid stress affecting egg production and egg quality.
Post-laying of protein and minerals: Appropriate supplementation of animal protein feeds to increase essential amino acid content. Observe changes in eggshell mass and egg weight. If eggshell quality declines and egg weight is reduced, cod liver oil and inorganic salt additives can be added. It is better to place inorganic salt pots and let them feed freely. To overcome the impact of climate change, the change in the microclimate within the duck house should not be too great. Timely elimination of disabled, sub-species ducks, and obsolete mother ducks.
When the material is cut: Because the female duck has fully matured at this time, the egg weight remains stable, and the demand for nutrients from the female duck begins to decrease, which should be reduced as the laying rate declines. Reducing materials may adopt a tentative reduction method: that is, each duck is reduced by 3 grams per day and fed for 4 days. If the rate of egg production declines during this period is large, the raw materials should be immediately resumed; if the rate of egg production falls, prove that the material is reduced Correctly, we should continue reducing materials in this way.
Prevent fluctuations in management: maintain 16 hours of light per day, and if the egg production rate has dropped to 60%, increase the number of hours of light until elimination. Operating procedures and keeping environment as stable as possible to avoid large fluctuations.
Management Points for Egg Production Period of Cherry Valley Meat Ducks
The egg-laying period of cherry grazing ducks can be divided into four stages: 20 weeks old to 25 weeks old, 25 weeks old to 30 weeks old, and 30 weeks to 48 weeks old. At the peak, 48 weeks to 66 weeks of age are the late stage of laying. In these four stages, the main points of feeding and management are different.