Összesen 1 találat.


001-es BibID:BIBFORM107188
Első szerző:Ortega, Arth David Sol Valmoria (PhD student)
Cím:Effects of heat stress-induced oxidative stress on the reproduction of sows and its alleviation by dietary antioxidants: a review / Arth David Sol Valmoria Ortega, Somsy Xayalath, James Kachungwa Lugata, Csaba Szabó
Megjegyzések:Sows are susceptible to high ambient temperature, and when it exceeds the level of their thermal comfort, they experience heat stress (HS). HS causes overproduction and accumulation of reactive oxygen species (ROS) in cells and can disturb the animals' antioxidant defense system, leading to oxidative stress (OS). Such stressor causes oxidative damage to proteins, lipids, polysaccharides, and DNA in cells and tissue damage. HS-induced OS also harms the sows' reproductive development. It can negatively affect the physiological process of the animals' reproduction from the maturation of oocyte to fertilization, development of the embryo, and pregnancy. Their reproductive performance is also compromised; sows exposed to HS can result in lower litter weight at birth, higher number of low birth weight piglets (higher variance) which causes high pre weaning mortality. Moreover, the sows' colostrum, milk yield, and nutrient concentration can be reduced upon exposure to the said stressor, demanding an efficient mitigation strategy. Understanding the sows' reproduction and HS-induced OS influence on its viability is vital in providing proper mitigation strategy. Therefore, this paper aimed to review the female pigs' reproductive development, the impact of HS-induced OS on their reproduction, and the possible alleviation of its adverse effects by dietary antioxidants. Based on the information from various researches, antioxidant fortified diet fed to sows at various stages of life could ameliorate HS-induced OS. Several researches have confirmed this by improving the sows' antioxidant status as supported by increased activity of endogenous antioxidants (SOD, CAT, and GSH-Px) and subsequently improving their reproductive performance. Based on the information gathered, the enhancement of the antioxidant status and improvement of the sows' reproductive performance was exhibited when dietary levels of antioxidants are supplemented at high levels, suggesting the importance of regulating the dietary antioxidant levels in the diet upon HS challenge.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok előadáskivonat
Heat stress
oxidative stress
dietary antioxidants
antioxidant status
sows' reproductive performance
Megjelenés:XXV. Tavaszi Szél Konferencia 2022 : Tanulmánykötet I. / szerk. Molnár Dániel, Molnár Dóra, Nagy Adrián Szilárd. - p. 13-25. -
További szerzők:Xayalath, Somsy (1982-)(PhD hallgató) Lugata, James Kachungwa (1992-) (Ph.D hallgató) Szabó Csaba (1968-) (agrármérnök)
Internet cím:Szerző által megadott URL
Intézményi repozitóriumban (DEA) tárolt változat
Rekordok letöltése1