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001-es BibID:	BIBFORM112319
Első szerző:	Baccouri, Wissem (agrármérnök)
Cím:	Heat stress of cattle from embryonic phase until culling / Wissem Baccouri, Edit Mikó, István Komlósi
Dátum:	2023
ISSN:	1587-1282
Megjegyzések:	eat stress becomes a serious problem in the livestock sector as it affects cows' performance negatively. The objective of this paper review is to investigate the effects of heat stress during the different phases of the life cycle of cows; embryos, calves, heifers, and cows. Heat stress during early maternal gestation affects the ability of embryos to develop increasing the risk of abortion and early embryonic death. Heat stress during late maternal gestation affects the performance of calves and heifers later in their life, as it reduces growth performance, conducts physiological changes, impaired immunity, changes the behavior, and reduces the length and intensity of the estrus in heifers with decreasing in milk production in the first lactation. On the level of cows, milk quality and production, meat quality, and the final body weight decrease under hot temperatures. Heat stress decreases the conception rate, alters follicle growth, and estrous symptoms. Hormones secretion and physiological changes because of the heat stress conduct to impair the immunity system, and in oxidative stress and death in some cases. Same as for calves and heifers a change in the behavior of cows was detected in order to decrease their temperature.
Tárgyszavak:	Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény hazai lapban folyóiratcikk heat stress embryos calves heifers cows
Megjelenés:	Agrártudományi Közlemények = Acta Agraria Debreceniensis. - 1 (2023), p. 11-22. -
További szerzők:	Mikó Edit Komlósi István (1960-) (agrármérnök)
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat Szerző által megadott URL DOI
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