Three-stage feeding technology for broilers

At present, broilers generally adopt the method of feeding any chicken to eat freely, and give it light day and night. Although there are stages in the feed supply, there is no restriction on feeding, and physical training and cultivation are not paid attention. As a result, in the middle and late stages of broiler growth, various metabolic diseases are prone to occur, such as ascites, sudden death, and leg problems. Wait. In order to prevent the occurrence of these diseases, farmers continue to add drugs to the feed. This not only leaves chickens with drug residues, but also increases the cost of feeding and reduces the economic benefits of broiler production. Based on years of production practice, the author divided the growing period of broiler chickens into three stages, and the difference was raised and received good results. The following is introduced. 1 Three-stage division According to the physiological characteristics of broilers, newly hatched chicks are short and thin, and their body temperature is slightly lower than that of adult chickens. After 4 days of age, the body temperature gradually increased and reached the temperature of the adult chicken at 10 days of age. Chicks have a small gastrointestinal volume and poor digestion of food, but they grow rapidly. Based on these physiological characteristics and growth laws, the broiler breeding period is divided into three stages: the first stage is 0 to 14 days old, the second stage is 15 to 35 days old, and the third stage is 36 days old until slaughter. 2 The first stage of the main feeding technology in each stage. As the chicks were just transferred from the hatchery to the brooding shed, some chickens have been stored or transported for long distances and have been subjected to hunger and thrilling stimulation in a new living environment. The main measure in this stage is to adapt the chicks to the new environment as soon as possible, reduce stress, reduce the incidence, and increase the growth rate. Because there is a large positive correlation between 7-day-old body weight and slaughter weight. second stage. Chicks have basically adapted to the new living environment and gradually enter the fast growing period. The main task of this stage is to improve the chicken population, promote the formation of the chicken body, promote the development of internal organs and the strong and strong legs, lay a solid foundation for the next stage of growth and development, so that the latter grow faster and fewer incidence. Experiments have shown that limiting the feeding of 14-day-old broiler chickens for 3 weeks can improve the feed utilization rate and survival rate, and the restricted growth at this stage can be fully compensated in the third phase. The third phase. The broiler's physique has been formed, and it has a strong body and strong metabolism. At this time, the fastest growing rate, the main technical measure is to take all methods to promote the chicken's intake and digestion and absorption, reduce exercise, reduce physical energy consumption, so that the maximum rate of feed conversion. 3 Phase 1 of specific measures for each phase. In the first few days, give high-quality drinking water, such as 5% glucose + multidimensional (prophylactic plus drugs), and supply small, digestible, full-priced compound feed. Generally use small pellets, so do less feed Tim, so that the amount of material occupy the best slot 1/2 or 1/3. In the light, the first day can be used 24 hours light, light intensity of 4 watts per square meter, then gradually reduce the light time transition to natural light. Experiments show that gradually decreasing and then increasing lighting program can promote the development of internal organs and bone calcification to a certain extent, so that the health is good, and at the same time bring about compensatory growth later, the incidence of disease is low. second stage. According to the growth condition of broilers, the volume of feeds should be appropriately increased, and the energy and protein concentration in feeds should be reduced. Generally, it can be reduced by about 10%. However, various vitamins, trace elements and minerals in feeds are required to be slightly higher than the standards. In the standard supply. Feeding method: feeding 3 times a day. In terms of management, attention is mainly paid to sports, such as using bamboo sticks to drive chickens at night to increase the activity of broilers so as to achieve the purpose of exercise. Appropriately increasing the light intensity can be beneficial to exercise and reduce the incidence of disease. The third phase. To provide high-quality fattening feed, full nutrition, high energy, eggs can be more appropriate. When formulating feed, attention should be paid to: 1 Diversification of raw materials and low fibrosis; 2 Add 3% to 5% of animal and vegetable fats and oils; 3 Use feed pellets as much as possible. The number of feedings was increased from 3 to 5 times a day, or free-feeding methods were used to keep the feeds continuously and to satisfy the feeding of chickens. In terms of management, it is necessary to reduce the exercise without affecting the health of the flock, and to cooperate with low light and long illumination methods. It is also necessary to timely adjust the rearing density. If the density is too large, it will affect the feeding of chickens and affect rest. As a result, the growth and development of the chicken will not be uniform, air pollution will be caused, the humidity will be too high, the environmental sanitation will be deteriorated, and the fattening effect will be poor. Under normal circumstances, stocking density: 12 to 15/m2 in winter and 8 to 10/m2 in summer. At the same time pay attention to ventilation to keep the air in the house fresh, the temperature is about 18 Â°C, relative humidity of 55% is appropriate.

Posted on June 23, 2018