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    • #80115

      Heat Stress Load is used in cattle. The one we calculate is taking average wind into consideration.

      Environmental conditions that can contribute to the heat stress load are:

      • recent rainfall
      • a high ongoing minimum and maximum ambient temperature
        a high ongoing relative humidity
      • an absence of cloud cover with a high solar radiation level
      • minimal air movement over an extended period (4–5 days)
      • a sudden change to adverse climatic conditions

      Animal characteristics 
      Some cattle are more susceptible to excessive heat load (EHL) than other cattle based on:

      • Breed: Bos indicus cattle are more heat tolerant than Bos Taurus. Genetic variations also exist within breeds.
      • Coat colour and type: Cattle with lighter coat colours tend to be more tolerant of heat.
      • Body condition: Heavier cattle tend to be more susceptible to EHL.
      • Adaptation: Cattle will adapt to heat provided the temperature change is gradual.
      • Health: Cattle with a prevailing health condition are less able to cope with temperature changes.

      So this value is a good indicator to prompt you to keep an eye on your livestock, making sure they are ok.


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