Interrelationships between maternal and neonatal factors and thermoregulation in fasted neonatal swine (Sus domesticus)

Colostrum Intake and Thermoregulation in the Neonatal Pig in Relation to Environmental Temperature

“…They found that after an initial drop, the RT of piglets rose to its final level in 2-10 days, and that both the extent of the initial fall and the rate of the subsequent rise depended on the environmental temperature. In the present study, exposure to 18-20 °C handicapped small piglets more than larger animals in pre venting RT fall at birth, in good accordance with the results of Stanton et al [38] and Berbigier et al [5]. This impairment of smallsized piglets in maintaining body tempera ture is usually explained by a higher ratio of surface area to body mass.…”

Colostrum Intake and Thermoregulation in the Neonatal Pig in Relation to Environmental Temperature

“…They found that after an initial drop, the RT of piglets rose to its final level in 2-10 days, and that both the extent of the initial fall and the rate of the subsequent rise depended on the environmental temperature. In the present study, exposure to 18-20 °C handicapped small piglets more than larger animals in pre venting RT fall at birth, in good accordance with the results of Stanton et al [38] and Berbigier et al [5]. This impairment of smallsized piglets in maintaining body tempera ture is usually explained by a higher ratio of surface area to body mass.…”

Effects of the level of asphyxia during delivery on viability at birth and early postnatal vitality of newborn pigs.

“…Neonatal Asphyxia Reduced Early Postnatal Vitality and Survival. More generally, the main feature of this work is the demonstration that neonatal asphyxia can have mid-term effects on early postnatal vitality and survival, as suggested previously by Randall (1971), Stanton et al (1973) and English and Wilkinson (1982). Neonatal asphyxia delays the first contact with the udder and the first intake of colostrum and is associated with a reduction of rectal temperature at 24 h of life, growth rate, and survival over 10 d, these criteria being of prognostic value for early postnatal vitality (Hoy et al, 1995a,b).…”

“…Plasma glucose concentrations at birth were higher in the less viable piglets, the highly asphyxiated piglets, and the piglets dying before 10 d of age than in respective control animals. Higher blood glucose concentrations have also been reported in stillborn and weakborn piglets (Svendsen et al, 1986;Lauterbach et al, 1987), in piglets born during the latter stages of farrowing (Stanton et al, 1973), and in neonatal rats (Jansen et al, 1984) and calves (Edwards and Silver, 1969) during temporary asphyxia at birth. The pronounced rise in plasma glucose during neonatal asphyxia could be primarily caused by the huge release of catecholamines and associated stimulation of liver glycogenolysis (Randall, 1979).…”

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

“…Kammersgaard et al (2011) observed that the neonate's low rectal temperature up to two hours after birth is related to birth weight of around 1.5 kg, and to piglets that remain on the floor for more time instead of approaching the dam's udder during that time. Stanton et al (1973) also observed that the performance of newborn piglets in a cold environment is closely-related to birth weight, noting that piglets weighing 1.02-1.15 kg have a higher surface-area/body volume ratio than larger neonates with weights of 1.27-1.38 kg., for this reason, the former are more prone to heat loss in cold environments.…”

Colostrum Intake and Thermoregulation in the Neonatal Pig in Relation to Environmental Temperature

“…They found that after an initial drop, the RT of piglets rose to its final level in 2-10 days, and that both the extent of the initial fall and the rate of the subsequent rise depended on the environmental temperature. In the present study, exposure to 18-20 °C handicapped small piglets more than larger animals in pre venting RT fall at birth, in good accordance with the results of Stanton et al [38] and Berbigier et al [5]. This impairment of smallsized piglets in maintaining body tempera ture is usually explained by a higher ratio of surface area to body mass.…”

Effects of the level of asphyxia during delivery on viability at birth and early postnatal vitality of newborn pigs.

“…Neonatal Asphyxia Reduced Early Postnatal Vitality and Survival. More generally, the main feature of this work is the demonstration that neonatal asphyxia can have mid-term effects on early postnatal vitality and survival, as suggested previously by Randall (1971), Stanton et al (1973) and English and Wilkinson (1982). Neonatal asphyxia delays the first contact with the udder and the first intake of colostrum and is associated with a reduction of rectal temperature at 24 h of life, growth rate, and survival over 10 d, these criteria being of prognostic value for early postnatal vitality (Hoy et al, 1995a,b).…”

“…Plasma glucose concentrations at birth were higher in the less viable piglets, the highly asphyxiated piglets, and the piglets dying before 10 d of age than in respective control animals. Higher blood glucose concentrations have also been reported in stillborn and weakborn piglets (Svendsen et al, 1986;Lauterbach et al, 1987), in piglets born during the latter stages of farrowing (Stanton et al, 1973), and in neonatal rats (Jansen et al, 1984) and calves (Edwards and Silver, 1969) during temporary asphyxia at birth. The pronounced rise in plasma glucose during neonatal asphyxia could be primarily caused by the huge release of catecholamines and associated stimulation of liver glycogenolysis (Randall, 1979).…”

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

“…Kammersgaard et al (2011) observed that the neonate's low rectal temperature up to two hours after birth is related to birth weight of around 1.5 kg, and to piglets that remain on the floor for more time instead of approaching the dam's udder during that time. Stanton et al (1973) also observed that the performance of newborn piglets in a cold environment is closely-related to birth weight, noting that piglets weighing 1.02-1.15 kg have a higher surface-area/body volume ratio than larger neonates with weights of 1.27-1.38 kg., for this reason, the former are more prone to heat loss in cold environments.…”

Colostrum Intake and Thermoregulation in the Neonatal Pig in Relation to Environmental Temperature

“…They found that after an initial drop, the RT of piglets rose to its final level in 2-10 days, and that both the extent of the initial fall and the rate of the subsequent rise depended on the environmental temperature. In the present study, exposure to 18-20 °C handicapped small piglets more than larger animals in pre venting RT fall at birth, in good accordance with the results of Stanton et al [38] and Berbigier et al [5]. This impairment of smallsized piglets in maintaining body tempera ture is usually explained by a higher ratio of surface area to body mass.…”

Effects of the level of asphyxia during delivery on viability at birth and early postnatal vitality of newborn pigs.

“…Neonatal Asphyxia Reduced Early Postnatal Vitality and Survival. More generally, the main feature of this work is the demonstration that neonatal asphyxia can have mid-term effects on early postnatal vitality and survival, as suggested previously by Randall (1971), Stanton et al (1973) and English and Wilkinson (1982). Neonatal asphyxia delays the first contact with the udder and the first intake of colostrum and is associated with a reduction of rectal temperature at 24 h of life, growth rate, and survival over 10 d, these criteria being of prognostic value for early postnatal vitality (Hoy et al, 1995a,b).…”

“…Plasma glucose concentrations at birth were higher in the less viable piglets, the highly asphyxiated piglets, and the piglets dying before 10 d of age than in respective control animals. Higher blood glucose concentrations have also been reported in stillborn and weakborn piglets (Svendsen et al, 1986;Lauterbach et al, 1987), in piglets born during the latter stages of farrowing (Stanton et al, 1973), and in neonatal rats (Jansen et al, 1984) and calves (Edwards and Silver, 1969) during temporary asphyxia at birth. The pronounced rise in plasma glucose during neonatal asphyxia could be primarily caused by the huge release of catecholamines and associated stimulation of liver glycogenolysis (Randall, 1979).…”

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

“…Kammersgaard et al (2011) observed that the neonate's low rectal temperature up to two hours after birth is related to birth weight of around 1.5 kg, and to piglets that remain on the floor for more time instead of approaching the dam's udder during that time. Stanton et al (1973) also observed that the performance of newborn piglets in a cold environment is closely-related to birth weight, noting that piglets weighing 1.02-1.15 kg have a higher surface-area/body volume ratio than larger neonates with weights of 1.27-1.38 kg., for this reason, the former are more prone to heat loss in cold environments.…”