Breeding techniques of black feathered green shell laying hens

The difference between black-feathered green-shell laying hens and ordinary green-shell laying hens is that the feathers of black-feathered green-shell laying hens are black, which are mainly distributed in Yichang, Hubei Province. because of their different feathers, they are quite attracted by consumers in the sales process. Today, let's take a brief look at black feathered green shell laying hens.

Breeding techniques of black feathered green shell laying hens

Black feather green shell laying hens have the characteristics of bright black feathers, reddish skin and delicate meat than ordinary native chickens. Eggs and chicken are common poultry products on the dining table of ordinary people, and with the prosperity of common people's life, great changes have taken place in the quality of life. At the same time, the demand for pollution-free and green food is getting higher and higher. For chicken farmers, the breeding of black feather green shell laying hens is in line with the current requirements of ordinary people for green chicken products.

1. Chicken house construction

The chicken house is built in a ventilated and sunny place, with a 70 cm x 120 cm lighting window every 3 meters. Perch, drinking fountain and material trough can be placed on one side of the room. Open a small door 160 cm high and 70 cm wide on the sunny side, and set up a playground covered with sand outside.

2. Incubation

Eggs weighing more than 40 grams are selected as breeding eggs and hatched artificially. Incubation technical requirements:

① temperature and humidity

The eggs hatched in batches should be hatched at a constant temperature. Each batch of eggs should be placed at cross intervals, and people who hatch eggs should pay attention to putting the big head up on the egg plate. After hatching 1-18 days, the temperature in the incubator (egg noodle) is 37. 5% in winter. 8C, summer 37. 5C is suitable. The hatching is transferred to the hatching machine on the 19th day, and the eggs are laid flat. The temperature inside the machine is 37. 5% in winter. 2C and 37C in summer are suitable. The relative humidity is 60% in 18 days and 70% in 19-21 days.

② turns the eggs every 2 hours at an angle of 90 degrees.

③ hatching

Generally hatching begins to hatch on the 20th day. The hatching is almost completed in 21 days.

④ disinfection

Eggs must be sterilized 30 minutes after laying and before hatching. After hatching, disinfect once, and spray disinfection such as formalin fumigation or parathion.

3. Nutrition and feeding

The nutritional requirements of green shell laying hens are as follows: dietary crude protein of chicks accounts for 20010, crude protein of young chickens accounts for 15%, and crude protein of breeder chickens accounts for 17%. The hatching period is within 30 days, and the key to this period is heat preservation. The temperature is kept at about 33 ℃ within 3 days after shelling, and then decreases by 2C every 7 days. The principle is that chicks are evenly distributed around the heat source. Drink water before eating, and feed full-price chicken feed 4-6 times a day. We should also pay attention to ventilation during the breeding period. The density is generally 10 days old, 40-50 / m2; 20-day-old, 30 / m2; 30-day-old, 20 / m2. The body weight of 140-day-old hens is generally controlled at about 1kg and that of Roosters is about 2kg. At the age of 140 days, the feed of young chickens was changed into full-price feed for laying hens, and water-soluble multi-dimensional was added to drinking water. Farmers can feed some green vegetables or grass, generally accounting for about 20% of the total feed, but not mixed with dry feed. The requirements of egg laying light are as follows: 16 hours a day in the early stage of laying, and 16-17.5 hours a day at the peak of egg production. When laying eggs, the chicken feed consumption is about 85 grams per day. Pay attention to the regular addition of medium and coarse sand, the dosage is only per IOOO

The chicken is fed 6-7 kilograms. Each flock of breeder chickens can raise 100-200 chickens. In addition to restricting breeding, breeder chickens should also be conditionally limited to light, preferably 8 hours a day after 55 days. The breeding henhouse can be set up with egg laying boxes and rectangular egg laying ponds made of wooden boards, which are filled with fine sand to keep the environment quiet and dry.

Breed characteristics of black feathered green shell laying hens

Oasis black feather green shell laying hens have the characteristics of small size, high laying performance, strong adaptability, outstanding appearance, red crown in high yield line and green shell eggs. it is an excellent and good egg and meat breed. The hen has compact feathers, erect single crown, 6 crown teeth, bright eyes, most of the ear leaves are light green, the meat droop is deep and thin, the feathers are flaky, the shins are thin and short, and the adult weight is 1.2 ml 1.4 kg.

Production performance of black feathered green shell laying hens

The survival rate of 6-week-old chicks is 94%. The survival rate of 20-day-old hens is 95%, the survival rate of hens in houses is 90%, and the age of birth is 145%. 155 days. The initial laying weight is 0.9Mel 1.05kg, the weight of the first laying egg is 36Mel 40g, the number of eggs laid at the age of 500 days is 200-220, the weight of the egg is 48Mel 50g, the fertilization rate of the breeding egg is 88Mel 92%, the qualified rate of the breeding egg is 95.Mui 96%, and the hatching rate of the fertilized egg is 88Mel 92%. Oasis black feather green shell layer feathers are all black, black skin, black bone, black viscera, beak, black toe are all black, high-yield line is red crown, body appearance is basically the same, offspring black feather rate is more than 90%, single crown rate is 100%, green shell ratio is more than 98%, and eggshell color is nearly the same, is dark green.

Economic benefits of oasis black feather green shell laying hens

The emergence of oasis black feather green shell laying hens provides a way out for many laying hens to replace new breeds, provides potential business opportunities for many investors, and will completely dispel people's concerns about ordinary eggs. Gradually like green eggs with nourishing and health care. At present, there are only 100000 green-shell laying hens in stock, of which 35000 are breeder hens, which is less than 1/1000000 of the market demand. in particular, China has joined the World Trade Organization. As China's unique high-quality livestock and poultry products, green-shell laying hens are most likely to enter the international market. one of the green agricultural products that participate in the international market competition. Experts predict that green-shell laying hens will be difficult to meet the market demand within ten years, and will gradually replace ordinary poultry eggs. The market potential is huge, and the breeding scene is very attractive, so it is the first choice for breeding enthusiasts and laid-off workers. At present, some far-sighted laying hens have switched to green shell eggs, and have made high profits.

As the saying goes, what kind of things are popular with the public will lead to the development of a series of surrounding businesses, and the rise and popularity of green-shell laying hens have also prompted many farmers and retirees to turn to the cultivation of green-shell laying hens, and the particularity of black-feathered green-shell laying hens is their better selling point.