"Wendeng Black Duck White Eggs Lay Many Eggs, Black Duck White Tips Lay Down Eggs Boundless" The black duck that has been raised in the South China Sea area of ​​Wendeng has a history of 100 years. In the 1980s, it had done two investigations and selected Wendeng. "Black Duck Local Breeding, Breeding, Promotion and Promotion" topic, listed city-level scientific research plan. Now the Wendeng black duck settled in Xiaoguan Town, and the whole city promoted and raised it, becoming a breeding breed for farmers to make a fortune. Its main features are as follows:
1. Characteristics of Wendeng black duck: 1.1 Appearance: Black plumage, white pigment and white wing tip. 1.2 Weight: The body of mature duck 2.0kg, female duck 1.7kg. 1.3 Production performance: The production of daily orders, 120-136 days, 180-265 eggs per year, egg weight 75-85 grams. 1.4 resistance to rough feeding, easy management is a food-type duck
2. To master the regulatory requirements for nutrient levels, ducklings require 19%-23% crude protein for 1-12 day orders, 16% crude protein for 13-30 day orders, and 31-56 day-old orders for ducks are too long to control shelf-grown growth. At an important stage, the crude protein can be maintained at 13%, with a low crude protein content of 10-12% for a 57-114 day order, single-grain feeding, and a single green feed, and a 115-day-old feed for the early egg-feeding duck. The protein is gradually increased by 15% per week, and 1-2% of crude protein can be added or subtracted according to body condition and uniformity to induce the development of the female duck's reproductive physiological function as soon as possible to the egg-laying process, reaching the same time as the body matures. mature.
3 The importance of restricted feeding: Feed restriction is the control of the material, not only the growth stage of feeding, the egg production period must also be properly limited feeding, which is related to a feed volume problem, should be based on feeding conditions, climate temperature, exercise capacity, Water conditions, grazing and captivity, and whether the uniformity of the population is uniform, take Wendeng Nanhai Xiaoguan and Zetou Town as examples. The temperature is warm in winter and cool in summer and the temperature in a year is about 15°C. The control material should be on the 60th. At the beginning, every day, about 75 grams of feed was fed. Grazing did not feed in the morning. The riverside grass buds, small fish, and bugs were all targets of the black ducks. At night, they returned to the shed and added little water. Formulated feed. The 110-day order can be used to supply 100 grams of biscuits in the early morning and twice in the morning and 120 grams of feed in 130 days. The daily grazing time is one hour later to prevent egg loss. In the period of 150-170 days of maturity, after the maturity of the body, the peak of egg production is about to come.
4. Sports enhanced body: black ducks have the habit of free movement lined up, each movement of the black duck, a strong physique, beautiful feathers pretty body strong, anti-wind and anti-frightening anti-stress, continuous production of more than 30 eggs separated One, not moving black duck, is short in shape and produces few eggs.
5 Appropriate lighting and lighting are the key factors to promote the early production of black ducks. Natural lighting is based on the sunrise from spring to sunset 16h. It is a good time for laying ducks. Most brooding starts from late spring and early summer, and the light intensity is strong. In April-May, when the production was started, it was in autumn and winter. The sunshine duration was short and the temperature dropped to more than ten degrees. The opposite is true for black ducks. Many black duck farmers suffer from light adjustment technology. The cold weather, light snow, and storm stress suddenly stopped production just after opening, and it took eighty-one days to spend a winter. The dry feed was not produced, some of the black ducks were too fat, and the spring was not producing eggs. It's not enough to double up, so a lot of bankruptcy goes off.
6. The author summed up intends to remind the breeding of large black ducks Wendeng, prevention should start with management, increase efficiency to start from disease prevention, master the following measures:
6.1 Brooding should begin in 9th and 10th of October to control New Year's Day. The Spring Festival is the beginning of production, and the production of eggs will be changed to wool in the fall. 6.2 The grazing time for autumn and winter seasons should be noon, 1-3 hours, and about 3:00 pm, we must close the shelter, keep warm, and warm up at 5 points.
6.3 increase lighting, beginning winter to increase light, the time from the beginning of half an hour, an increase of half an hour a week, half an hour after the winter solstice for the production of Wendeng black duck does not affect the production of eggs,
6.4 The intensity of light, 3 watts - 2.8 watts per square meter. Due to the gap in construction of the black duck shed, high humidity and ground tide, the lights needed need to be about 1 metre away from the ground to keep the litter dry and keep it clean and sanitary. The temperature should be 12-15°C. The activity pool should be placed outside the shed. Room for action,
6.5 Timely vaccination; 1 Day-time vaccination with duck plague vaccine, 7-day vaccination with viral hepatitis vaccine, 10 days vaccination with bursa vaccine, 21 day vaccination with duck quail vaccine, 28 days vaccination with bursa vaccine. 110 vaccinated against chicken cholera vaccine, 120 days vaccination with egg drop syndrome vaccine.
In short, the Wendeng black duck is a water bird that digests fast and eats fast. Eat more, half of the food is generally good long grass, home without food can not feed the neck length of the statement, indicating that feeding duck to add food science, simple compound feed but also add crude fiber to promote digestion.
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