Temperature is a key factor affecting the health of the flock. Especially for broiler rearing, the temperature requirement is more stringent. If you do not pay attention, it will cause epidemics. Therefore, regardless of the feeding instruction data, it is clearly provided that the chickens in different stages have all provided a guideline for the temperature requirements. However, in production practice, it should be clarified that temperature is the best environmental condition for the growth of chickens. It should be based on the adaptation and performance of chickens. It cannot be simply based on a single data standard. Therefore, the author believes that the best temperature indication should refer to the performance of the following flock.
1. The appropriate temperature for group performance is the evacuation of chickens. V is uniform, the body is stretched, and some chickens have mouth breathing as an indication. If they are piled away from the heat source, the respiratory rate is increased. In particular, chest-type breathing is increased. High; if you get near the heat source and the breathing frequency decreases, the temperature is often too low. However, the premise of this test is that the humidity is appropriate and the flock is healthy. If these two preconditions are lacking, they cannot be completely referenced.
2. Individual performance If we enter the henhouse, we find that many chickens have stretched bodies, and the neck hairs are upside down and the heads are tied downwards or stretched their necks to lower their heads. The temperature is high due to low humidity and pneumonia is caused. If the hands are under the fins and the abdomen is hot, then it is necessary to supply a relatively low temperature. If, on the other hand, the hand touches the broiler, it feels cold and the legs become blue, a higher temperature is needed.
3. Dissection Anatomy We will not only find the pathological changes of the viscera through the dissection of the dead chickens, but also find out the cause of the morbidity. There is a good indication for whether the temperature is suitable or not. If the trachea is dilated, there is elasticity, there is even bright red bleeding, there is viscous sputum in the bronchus, the lungs are bright or white in color, the volume is not shrunk, and there are stench-like water discharges in the stomach. On the contrary, the trachea is tense, there are blisters, there is black blood stasis and necrosis in the lungs, the stomach water is clear and odorless, and the stomach wall is black. Mostly low temperature.
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