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Commercial broiler rearing period management
The fattening period for commercial broilers ranges from 28 to 56 days. The general principles of feeding and management during this period are: Take effective measures to speed up the growth rate and increase the product qualification rate. First, a reasonable group of chickens brooding end, the growth rate was significantly accelerated, should be strong or weak, size, male and female groups at any time. Grouping is best done at night or in the morning, and adding multivitamins to drinking water prevents stress. Second, feed replacement Chickens enter the fattening period, the diet will be replaced by the original chicken material chicken material and chicken material. In order to reduce the stress caused by feed replacement, the transition of the feed must be observed and cannot be changed suddenly. The transition period is generally 3 days. The specific method is: the first day's diet consists of 70% of the material before the transition and 30% of the material after the transition; the next day consists of 50% of the material before the transition and 50% of the material after the transition. The third day consists of 30% of the material before the transition and 70% of the material after the transition; the fourth day is completely changed to the material after the transition. Feed the big chicken feed 7 days before the slaughter, stop the medication, and eliminate the drug residue. Third, winter and summer fattening chicken management 1, summer fattening chicken management points hot summer climate, and the chicken sweat glands were covered with feathers, poor heat resistance, easy to cause strong heat stress in chickens, broilers showed decreased feed intake, weight gain Slow, high mortality. Therefore, the most important thing in summer management is cooling off. This problem should be taken into account during the design and construction of the chicken house, so that the chicken house is oriented in a rational and open space, so as to help ease the auxiliary shooting of the summer sun. Around the hen house, luxuriant woods or vines are planted to shade the chicken house and heat radiation can also be reduced. Houses with poor septa roof insulation can reduce the temperature by using white roofs to reduce heat absorption or roof spraying to promote heat dissipation. In order to maintain good ventilation in the house, open the doors and windows, and protect the doors and windows with barbed wire to prevent animal damage. It is necessary to adjust the structure of the diet and feeding methods and supply enough water to the chickens. During the fattening period, if the temperature exceeds 27°C, the feed intake of the chicken decreases. On the basis of the original nutritional level of the diet, the protein content can be increased by 1%-2%, the multidimensional element can be increased by 30%-50%, and the ration can be kept fresh. Granules are preferably used on the material to increase palatability. The feeding time should be arranged as early as possible in the cool morning and evening, 4-6 times a day, and provide sufficient cold water. In order to reduce heat stress, anti-stress drugs can be appropriately added to the feed. When the shepherd temperature is higher than 27°C, add an appropriate amount of vitamin C, 0.3% baking soda, 0.5% ammonium chloride, or 0.1% potassium chloride in drinking water. In addition, to maintain proper stocking density, the density should be reduced by 10% to 5% in the same area compared to other seasons. Generally, the total weight of broiler chickens per square metre can not exceed 20 kg. At the same time, we must do a good job in environmental sanitation and disinfection. 2. Management points of winter fattening chickens The key to winter management is keeping warm and cold, correct ventilation, reducing humidity and harmful gas content. When the roof insulation is poor, it must be covered with straw or plastic film. The window is sealed with a plastic film and the ventilation and ventilation openings should be adjusted. When the temperature is low, artificial heating is required. Broilers lying on wet ground will increase body heat emission, so frequent replacement and addition of litter to ensure dryness. As the maintenance needs of winter chickens increase, the energy level of the diet must be appropriately increased. When using split feeding, it is necessary to shorten the fasting time of the cold night of the flock. Always check the flues to prevent gas and fire. Fourth, the daily management of commercial broilers 1, good use of litter, timely dug when the feces to be uniform, to avoid uneven; avoid drinking water spill wet litter. 2. Observe the flock of chickens every day carefully, thoroughly and comprehensively to observe the situation of the flock in order to identify problems and deal with them in time. 1 Observe the diet, check whether the drinking water is clean, whether there is pollution, whether the drinking fountain or the water tank is clean, whether the water flow is suitable, whether there is no water, or the phenomenon of excessive water flow and overflow, and whether the amount of drinking water of the chicken is appropriate to prevent shortage or excess. The feed intake of broilers should be stable and increase day by day. Given proper amount of feed, they can generally be eaten within the prescribed time. Under normal circumstances, healthy chickens scramble to eat first, while sick chickens stand out. When abnormal changes are found, the reasons should be analyzed in a timely manner to study countermeasures. 2 observe the mental state. The healthy chicken has bright eyes and spirits, full of energy, liveliness, feathers and neatness. The tail stands upright, the crown is red, and the claws are bright. The diseased chicken shows purple or pale crowns, and the eyes are bleak and bleak, the spirit is weak, or the independent corner is low. Hanging wings, feathery, unwilling to move.