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How to evaluate the influence of warm environment comprehensive evaluation index on livestock health and production performance
(1) Air temperature in the barn For a closed barn, the temperature inside the barn mainly comes from the body heat released by the livestock, and the temperature outside the barn also affects the temperature inside the barn through thermal radiation, and the ventilation inside the barn will also affect the temperature inside the barn. For the open granary, the indoor temperature is basically the same as the outdoor temperature. The temperature difference between inside and outside the granary is mainly manifested in good thermal insulation.