ISSUE FOCUS 30 FEED & ADDITIVE MAGAZINE June 2022 conditions (higher THI but also longer periods under high temperature), other signs can appear, including: • Shallow breathing • Profuse sweating • Lethargic behavior • Increased respiration rate: open mouths and breathing with panting and tongue hanging out indicate more severe heat stress. CONSEQUENCES ON ANIMAL PERFORMANCES AND HEALTH If the effect of heat stress in dairy cow is much more monitored, with well-known incidence on dairy production, other methods are necessary to measure its impact in meat cattle. This is possible thanks to new smart farming methods which allow real time individual feed intake monitoring. Table 1 : THI table, Multiple equations analysis based on NRC 1971
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