Breeding techniques of Sanhuang Chicken in Southern Anhui

Wannan Sanhuang chicken is born in Xuancheng City, Anhui Province. It is generally raised as broiler chicken locally. The breeding mode of stocking and house feeding is generally adopted. This not only reduces the feeding cost, but also has better chicken quality. It can be said that the breeding effect is very ideal. It is famous for its wide adaptability, coarse feeding tolerance, strong disease resistance, easy feeding and excellent meat and eggs. Let's take a look at the breeding technology of Wannan Sanhuang chicken together.

Elimination of low-yielding hens

Practice has proved that low-yield chickens consume almost the same feed as high-yield chickens. There are often 10~30% low-yield chickens in the chicken flock. If these low-yield chickens are eliminated, the egg production of the chicken flock will not be reduced a lot, but the feed consumption can be reduced by 10~30%. Feed costs account for about 70~80% of chicken costs, which can save 10~30% of feed, which is a big savings. The experiment proved that the eggs laid by the same group of hens in the second year were 15% less than those in the first year, 28% less than those in the third year, 37% less than those in the fourth year, and 45% less than those in the fifth year. The masses also have the saying that "long-lived chickens lay thin eggs, hens are old and lay less eggs", so feeding hens should pay attention to the use of life. Generally, it is advisable to feed laying hens continuously for 2 years, and hens of meat varieties should be eliminated only after 1 year.

Environmental disinfection management

Chicken houses and utensils shall be treated in strict accordance with the four-step procedures of cleaning, washing, disinfection and fumigation, or after cleaning, paint a layer of fresh lime on the inside and outside of chicken houses and walls, and then put all cleaned utensils into a closed room for fumigation for 24 hours. Houses and appliances that have never been raised by chickens can be disinfected only by cleaning, washing and spraying. Disinfectants can be used such as 2% caustic soda or 0.3% Nongle (bacteria poison). The fumigation dose is 3x concentration (i.e. 42 ml formaldehyde +21 g potassium permanganate +10.5 ml water per cubic metre). Chicken farms should be timely rodent pest control, rodent infestation and insect infestation not only consume feed waste, but also consume oxygen, produce carbon dioxide and water, release heat and discharge feces, resulting in local temperature increase of feed, humidity increase, causing feed caking and mildew. More seriously, rats also bite chickens, steal eggs, spread diseases, so we should use rodenticides or adopt measures such as rats to do a good job in rodent control to prevent waste and pollution of feed.

Breeder management techniques

Breeder breeding in the whole breeding period than commercial chickens are strict, especially in the 18~36 weeks old, that is, from the beginning of laying to the peak of laying is the most critical period of its growth, development and production, the body is in a physiological transition stage, its feeding management requirements are strict and meticulous, for breeding flock timely start laying, rapid rise to the peak of laying and maintain a longer time, and maintain a higher fertilization rate has important significance. In order to improve the appetite of chickens, a variety of pastures can be planted with them, which not only saves food, but also has better nutrition. In summer and autumn, appropriate selection of some stems and leaves of pasture, such as chrysanthemum grass, excellent corn grass, library wheat grass, excellent Russian vegetables and even pakchoi, sweet potato leaves and other broken feed chicken, promote balanced absorption of nutrients. Chicken daily intake of nutrients corresponding increase and decrease, specifically in summer chicken feed intake decreased, at this time the dietary nutrient concentration than other seasons to increase. In order to maintain the coordination of body weight gain, the feed amount can be determined according to the weight gain situation combined with the feeding plan after weighing at the weekend. If there are groups, they should be weighed according to the proportion of sampling, and different feed quantities should be given accordingly. In actual feeding, the feed increase range of lighter chickens was slightly increased, while the feed increase range of heavier chickens was maintained at medium weight to achieve the goal of moderate weight control because of their larger feed requirement. (Posts Tagged 'village notes')