Hemodynamic and ventilatory effects of skin-cooling in cattle.
Cooling the skin of cattle at an ambient temperature of 25 degrees C decreased cardiac output and increased systemic and pulmonary vascular resistances. Minute ventilation was reduced by about 50%. There was no change in alveolar ventilation as measured by arterial blood gases. These results indicate that thermoregulatory ventilation has significant cardiopulmonary effects in cattle at normal laboratory temperatures.
D000818:Animals; D001794:Blood Pressure; D001831:Body Temperature; D001833:Body Temperature Regulation; D002200:Capillary Resistance; D002320:Cardiovascular Physiological Phenomena; D002417:Cattle / Q000502:physiology*; D003080:Cold Temperature; D011651:Pulmonary Artery; D011652:Pulmonary Circulation; D012119:Respiration; D012129:Respiratory Function Tests; D012879:Skin Physiological Phenomena; D012881:Skin Temperature