Hypothermia in newly born piglets: Mechanisms of thermoregulation and pathophysiology of death

Mortality in piglets during the perinatal period, especially first days after birth, is frequently caused by non-infectious conditions, such as hypoglucemia or low birth weight, which can be associated with hypothermia experienced at birth. The thermal stability of newborn a fundamental aspect neonatal care, so maintaining constant, ideal temperature will substantially reduce mortality. Species-specific characteristics, limited capacity for thermoregulation, energy reserves, lack brown adipose tissue (BAT) (-, and environmental conditions that are adverse piglet around time including absence microclimate, all them contribute to difficulties reaching homeostasis hours post-birth. Shivering thermogenesis behavioral modifications regulate body through innate mechanisms allow animals their expenditures. Some postures effective reducing contact floor also nestling useful avoid heat loss, decreases dissipation. Achieving optimal development thermoregulation challenge newborns must confront successfully adapt extrauterine life. objectives this review, discuss factors lead death event due analyzing central cutaneous levels, analyze harmful impacts surviving neonate an unfavorable environment, describe pathophysiological hypothermia.