1. Reasonable grouping and density When young ducks are confined, the number of each group should be about 500. When grouping, it is necessary to have the same age, the same size, and the same breed and gender. Breeding density: 4-10 weeks old 12-30 / square meter; 11-20 weeks old 8-12 / square meter: Winter can be appropriate for more than a few per square meter; summer can be less than a few per square meter . When the duck grows fast, the density of the rearing is slightly smaller, and when the growth is slow, the rearing density is slightly larger. Second, the scientific choice of feed Young ducks need to meet the various nutrients during the growth period, feed to diversify, maintain energy, protein balance. The protein in the diet should not be too high and the calcium content should be appropriate. In the production, depending on the growth and development of the ducks, the necessary nutrients such as Shaoxing ducks should be increased or decreased according to the specific conditions of the ducks. The normal production date is 1301-50 days, and the production weight is 1400-1500 grams. If the weight exceeds 1500 grams, it should be limited. Feeding, appropriate feeding more green feed and roughage; for poor development, light weight ducks, appropriate to improve feed quality, each feeding about 150 grams per day, plus a small amount of animal fresh feed. All the young ducks use mixed feeds. Add appropriate amount of fresh water before feeding and mix them with wet materials to feed. Feed 3-4 times a day at equal intervals. Third, management points (1) appropriate to strengthen exercise, promote bone and muscle development, prevent excessive fat. Drive regularly every day so that it moves in a circle, every 5-10 minutes, 2-4 times a day. (2) Contact more ducks to increase the guts of ducks and prevent frightening herds. (3) Turning on the lights overnight, low light lighting. The standard daily illumination time of young ducks is 8-10 hours, which should not be increased before opening. In order to facilitate the ducks to drink at night, to prevent the rats from harassing and disturbing the group, the house should be illuminated with low-light lighting. A 30-square-meter light bulb can be installed in a typical 30-square-meter duck house: If there is a power outage, the kerosene lamp should be turned on immediately. (4) To strengthen the prevention of infectious diseases. The degree of immunity was: a cholera vaccine was injected at 60-70 days; a duck attenuated vaccine was injected at 70-80 days. For ducks raised for only one year, they are generally injected once, and ducks with more than two years are used for injection every six months. Avoid duck injections after entering the production peak. (5) It is necessary to establish a stable system of work and rest. According to the living habits of ducks, a routine system and operating procedures should be established to maintain stability after the formation. Fourth, grasp the feeding and management of the laying period (1) feeding and management of the early and early stages of egg production. The initial stage of laying (150-200 days of age) and early stage (201-300 days of age) focus on increasing nutrient concentration and feeding times in the diet to meet the nutritional needs and push the egg production to the peak. On the basis of proper diet formula, when the egg production rate reaches 50%, 10 grams of fish meal will be added to each duck per day; 10 grams of fish meal will be added when the egg production rate is 70%; 18-20 will be added when the egg production rate is over 90%. Fish meal, after maintaining this level. The number of feedings increased from 3 times a day to 4 times, 3 times during the day and 10 times a night. The average light 14 hours, and should gradually increase from short to long. The larger the duck eggs during this period, the faster the increase in production, indicating that the better the feeding and management. Otherwise, identify the reasons in a timely manner and improve them. The egg production rate has gradually increased, especially in the early spring when the duck production rate rises faster. Usually 200 days of age (up to 300 days of age), the egg production rate of up to 98%. If the egg production rate goes up or down or even declines, it is due to feeding. Samples are weighed on a monthly basis (in the case of fasting ducks in the morning). If the average body weight is close to the standard body weight, it means that the feeding and management are appropriate. If the standard body weight is exceeded, it means that the excess nutrients should be reduced or increased the proportion of coarse material: if it is lower than the standard body weight, It shows that lack of nutrition should improve feed quality. (2) Mid-term feeding and management of laying. The medium-term (between 301 and 400 days of age) focuses on ensuring high yields of ducks, and strives to maintain the peak of egg production until 400 days of age. Dietary nutrient concentrations should be slightly higher than before, and each duck should add 22 grams of fishmeal daily, or Feed each batch of 150 grams with a 20% protein supplement each day, and feed more green feed and calcium. Each herb feeds 150 grams per day, or multivitamins are added, and 1%-2% of granular shell powder is added. The light is stable every day for 16 hours. The temperature is maintained at 5°C to 10°C. If it exceeds or falls below this standard, adjustments should be made. Routine operating procedures remain stable. At this time, if the shell is smooth, thick and shiny, it means good quality. If the egg shape becomes longer, the shell is thinner and translucent, there are sand spots, and even soft shell eggs appear, indicating that the quality of the feed is poor, especially if the amount of calcium is insufficient, or vitamin D is lacking, it should be supplemented. If the egg production period is about 2 o'clock in the middle of the night, the egg production time is concentrated, and the production of eggs is neat, indicating proper feeding and management. Otherwise, measures should be taken promptly. (3) Rearing and management of laying eggs. The key point is to determine the quality of the feed and the amount of feed based on the weight of the ducks and the rate of egg production in the late stage of laying (401-500 days of age). If the duck production rate is still more than 80%, and the weight of the duck is slightly reduced, animal feed should be properly added in the feed; if the weight increases, the metabolic energy in the feed should be appropriately reduced or the feed intake should be controlled; If the body weight is normal, the crude protein in the feed should be slightly increased compared to the previous stage; the light is kept at 16 hours a day, and the ducks are circling around in the house three times a day, about 5 to 10 minutes each time, and the eggshell mass and egg weight are decreased. , supplements cod liver oil and minerals. Keep the microclimate and operational procedures in the duck house relatively stable and avoid stress reactions.

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