Chicken is too easy to get sick? That's you won't raise!

The feed conversion rate of broilers is the highest in the breeding industry, and the general feed-to-weight ratio is about 2:1. Because the feed cost accounts for about 65%-70% of the total cost, therefore, according to the law of feed conversion, at the same time, comprehensive consideration of the market situation, feed prices and other factors, reasonable arrangements for the production and slaughter of broilers, to maximize economic benefits.

● Growth characteristics of broilers

(1) The relative growth rate of broilers at the age of 1-2 weeks was the fastest, and then gradually decreased with the growth of weeks.

Relative weight gain = (final weight-initial weight) ÷ initial weight × 100%

Special attention should be paid to the feeding management of 0-4 weeks of age, otherwise it will seriously affect the later weight gain.

(2) The absolute weight gain of broilers peaked at 6, 7, 8, and 9 weeks of age, and then gradually declined.

Absolute weight gain = end weight-start weight

The feed intake should be met during the peak period, the energy feed level should be increased, the feeding density should be controlled, and the stress response should be reduced.

● Comprehensive prevention of chicken diseases

(I), control of chicken disease

To prevent the main, according to the immunization program for planned immunization.

1. Chickens should be injected with Marek's disease vaccine within 24 hours.

2, 7-day-old application of chicken Newcastle disease vaccine ten bursa vaccine drinking water immunization. Or the use of Newcastle disease vaccine nasal drip, the next day and then use the bursa of Fabricius vaccine drinking water immunization.

3, 14 days of age with Newcastle disease ten bursa vaccine drinking water immunization.

4, 35-50 days of age should be inoculated with Newcastle disease I line and E. coli vaccine.

5. For breeders and laying hens, the new town I vaccine should be injected again before the opening of the chicken, and then once a year.

(II), according to the change of climate environment

Certain disease-prone stages and the health status of chickens, regular targeted preventive dosing in drinking water and feed

1. Use 0.010/o potassium permanganate solution as intestinal disinfection before eating to treat meconium and reduce the occurrence of enteritis. Long-distance transport of chicks, should be given penicillin drinking water.

2, 1-2 weeks of age, the main prevention of chicken diarrhea. Available doxycycline, chloramphenicol, ciprofloxacin, enrofloxacin, furazolidone, dysentery net, lye and other drinking water prevention, alternate medication.

3, 3-7 weeks old, mainly to prevent chicken coccidiosis. Compound diquajing, gram ball powder, chlorobenzene guanidine, penicillin, Shi Defu and other drinking water or feed, fed once a day, even fed for 2-3 days. Alternate medication.

4. For Chinese and large chickens, depending on their health status, they should be prevented from being administered at least 2-3 times a month. In case of weather changes, anti-stress, Escherichia coli, fowl cholera and other drugs should be put into drinking water or feed in time. Such as Junbizhi, Avian Shendurin, Shi Defu, doxycycline, fluoric acid and other drugs anti-stress quick supplement 14, Aizhiduo, etc.

● Broiler management techniques

Links to be Noted in (I) Free-range Chicken

In recent years, chicken breeding in rural areas has developed rapidly and has become a good way for farmers to get rich. Raising chickens is to build sheds on hillsides, orchards, gardens, fish ponds and other places to raise chickens. The free-range chicken is generally sold over 100 days old. The meat of the chicken is strong, delicious and tender, with native chicken flavor, and the market prospect is promising. Rural free-range chicken should pay attention to the following links:

1. Selecting the field and setting up the shed

Choose flat land with high terrain, leeward and sunny, and little diurnal temperature change, and build a chicken house from north to south. The chicken coop should ensure that it can prevent cold and heat preservation in winter, prevent heatstroke and cool down in summer, and open drainage ditches around it so as not to accumulate water.

2. Moderate stocking scale

Generally, it is only appropriate to 1000 to 1500 in each group.

3, choose good, healthy chicken seedlings

Chicken seedlings should be introduced from healthy, disease-free, especially non-infectious diseases, and scientific management. The better breeding breeds in our city are Xianju chicken and Meiling native chicken.

4, strictly grasp the stocking management

Generally, chicks start stocking at about 1 month old. Attention should be paid to:(1) In the first few days of stocking, a certain amount of vitamin C can be added to feed or drinking water to prevent stress. (2) A number of drinkers shall be placed near the shed to supplement drinking water, and the water shall be changed frequently. (3) Adhere to the daily management of stocking and fixing people, feeding timing and fixing points. (4) Observe frequently, pay attention to whether chicken manure is normal, find sick and weak chickens in time, and isolate them for observation and treatment. (5) Stop stocking in windy and rainy weather. (6) timely feeding. The frequency and time of supplementary feeding are determined according to different seasons and the foraging situation of chickens, usually 1 to 2 times a day.

5, do a good job in environmental sanitation, strict epidemic prevention

(1) Do a good job in the immunization of major diseases. (2) Remove the excrement inside and outside the house every day. (3) harmless treatment of chicken manure, dirt, sick and dead chickens, etc. (4) Regularly disinfect the chicken coop and the surrounding area thoroughly with 20% lime milk, poison killing, chlorine poisoning, disinfection, etc., and change the bedding frequently. Also used to kill mosquitoes, flies, rodents and so on.

(II) broiler breeding management

Purpose:

Preventing pathogenic microorganisms from invading the chicken house.

Chicken House Location and Building

◎ It is best to build the chicken house in an area with good isolation conditions, at least 1.6 kilometers away from the nearest livestock farm or other possible pollution sources.

◎ Chicken houses should avoid roads that may transport livestock.

Use fences around chicken farms to avoid unnecessary visitors.

◎ detect the content of minerals, bacteria and chemicals in water.

◎ The design and construction of commercial broiler houses should prevent wild birds and animals from entering the house. All openings shall be closed with a 2cm hole diameter coated wire mesh. The foundation and ground should preferably be constructed of concrete to prevent rodents from burrowing into the chicken house.

◎ Clean and level an area of 15 meters around all coops to remove weeds quickly and easily.

Prevention of human-transmitted diseases

◎ All entrances to the chicken farm should be locked and provided with signs such as "No Entry" and "No Visit" to restrict visitors.

◎ If managers need to visit more than one chicken farm (more than one) in a day, it is best to visit the youngest chicken flock first. Be sure to make the last visit to a flock with disease problems.

All personnel entering the chicken farm must follow biosecurity procedures. All staff and visitors entering and leaving the stadium must bathe and change clean work clothes, which is one of the best ways to avoid cross infection between the field and the field. If conditions do not permit, all staff and visitors should replace clean disposable overalls and boots when they arrive at the chicken farm.

◎ Visitors should make detailed records, including: name, unit, purpose of visit, which field they visited before coming to this field, and which field they are going to visit.

◎ When entering and leaving each chicken house, all staff and visitors must clean and disinfect their hands and work boots.

Prevention of animal-borne diseases

◎ At any time, the chicken farm should adopt the production mode of "all in and all out. Chicken flocks of different ages in the same chicken house will provide a living environment for pathogenic microorganisms.

◎ The time of empty house among chickens is beneficial to reduce the pollution source in the field. Empty time is the time between the completion of the cleaning/disinfection process and the arrival of the next flock. The recommended minimum empty time is 2 weeks.

◎ There should be no plants and weeds within 15 meters around the chicken house to create empty sites for rodents and wild animals.

◎ Collate and collect all the equipment, construction materials and garbage in the field to reduce the hidden places of rodents and wild animals.

◎ Remove scattered feed at any time.

◎ Store shavings and rice husks used for dunnage materials in bags, or place in storerooms/silos.

◎ All chicken houses should be free of wild birds.

◎ Implement effective procedures for controlling rats. Baiting is the most effective method, but it needs to be implemented continuously.

(III) broiler breeding high density open food

This open food to do the following:

1, the material generation all spread for food cloth. [What about the chicken pulling on it? Don't worry about meconium]]

2. Make the vacuum small drinking fountain and prevent the drinking fountain from sprinkling water. If the drinker can't sprinkle water on behalf of the material, use the smallest straight empty drinker. In the first ten hours, if the net is uneven and the water line is sprinkled. Don't lay the material where the drinker is placed.

3. Use 35% wet mixing material (35% wet mixing material can be understood as grasping the feed into a mass and loosening it is actually adding about 25kg of water to 100kg of material. Because the material itself has 12-14% moisture)

4. Sprinkle once every 1 hour (mix the wet material with 2 grams for the first time. After that, mix once every 2 or 2 hours, one gram each time, about 7 to 9 grams in the first ten hours).

The effects of high-density food intake: 1. induce food, 2. establish the balance of intestinal flora with the most suitable method, 3. eliminate meconium, 4. reduce the new environmental stress to a lesser extent, 5. keep warm, 6. improve the uniformity more effectively

The method for verifying the effect of high-density food intake is to spot check the satiety rate after 10 hours, and to stimulate the chickens to eat and drink to the maximum extent.

High-density open food:

It refers to the work of boiling water and boiling food according to 75-80 tied brooding pens per square meter. The water material should be applied at the same time and prepared before the chickens enter the house. High-density food is convenient for chickens to learn to eat and drink in time, which is beneficial for chicks to learn from each other and teach 10% of stupid chickens in advance. It is convenient to provide relatively uniform temperature and facilitate the management of breeders. 4. Reduce environmental stress.

Management Technology of (IV) Broiler Cage

Cage density 0.7M * 0.7M is generally 7-8

Since the number of chickens between each cage is less than that of net breeding, disease control is better controlled.

During the brooding period, the temperature is about 35 degrees. To observe the opening of the chicken's mouth, 50% of the opening rate is more appropriate.

Due to the density is too large, medium-term attention to ventilation problems.

During the fattening period, increase ventilation and control the temperature at about 28 degrees.