How are dry ducks raised?
Stocking time. According to the feed resources in the orchard, the orchard can be divided into two periods: stocking period and captive period. The most suitable stocking period is the peak period for the reproduction and growth of animals and plants in the garden, usually from the middle of April (from Qingming Festival to Grain Rain) to the end of October. At this time, the forage grass in the garden grows luxuriantly, and there are many by-products of fruit trees. Ducks can feed on all kinds of grass, wild vegetables, flowers, leaves, fruits and other plant foods, as well as a variety of animal foods such as eggs, pupae, crawling insects and near-surface flying insects. Adult ducks can be stocked all year round.
Garden choice. Ducks act foolishly and cannot peck on trees, which provides a guarantee for low-column grazing in the orchard. Where the soil and water conditions are better, higher trunk or old apples, pears, apricots, Hawthorns, persimmons, walnuts and other orchards can be stocked. Free-range ducks can play a role in grass control, and duck dung can provide high-quality fertilizer for fruit trees. This is an effective measure to transform the high-quality and efficient orchard with overgrown weeds, extensive management, serious insect pests, no fruit at the right age or low yield and low efficiency.
The construction of shacks. Orchard stocking is a new technology based on captivity, and shacks are also needed for supplementary feeding, drinking water and egg laying at night. Measures can be taken in accordance with local conditions, the use of mountain cliff, the transformation of old buildings and other methods to build plastic greenhouse duck house without being far away from the stocking garden. The construction area of the shed should be calculated with 6-7 pieces per square meter. a certain activity area should be enclosed in front of the shed, and material trough and drinking fountain trough should be placed in the site.
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Di Gao duck
First, the producing area of Digao duck is a large-scale meat duck introduced and bred by Digao Company of Australia. It was introduced into our country in the 1980s. The parents of this duck are raised on overseas Chinese Farm in Guangdong Province. In 1987, the parent generation of Digol duck was introduced into the duck breeding farm in Nanhai County, Guangdong Province, and the commercial generation duck was well received. Second, the appearance of the Digao duck is similar to that of the Beijing duck. The red feathers of the ducklings are yellow. After changing the young feathers, the feathers are white. Big head, thick neck, long back, wide chest, slightly longer body, chest
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Diagnostic techniques of Newcastle disease in chickens
Since the recognition of Newcastle disease (ND) in 1926, many countries have regarded ND as an endemic epidemic. With the exception of a few countries that produce poultry at commercial grade, all countries are vaccinated. One of the most characteristic properties of different strains of chicken Newcastle disease virus (NDV) is that its pathogenicity to chickens is very different. According to the clinical symptoms caused by infected chickens, NDV strains can be divided into 5 groups or disease types. they are: visceral virulent type, characterized by high pathogenicity and often seen with intestinal bleeding.
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