A dehydrated pig dying for water. 

Signs of dehydration and heatstroke in pigs include heavy panting, a very high respiratory rate, muscle trembling and weakest or prostration. Heatstroke may be caused by high temperatures and expose to sunlight. This moment occurred on one of the hottest days of the summer; Truckload by the truckload animals suffer in these poorly ventilated trailers. 

During these scorching summer months, most pigs die on route to the slaughterhouse suffering these horrific conditions.