Phenotypic, endocrinological, and metabolic effects of zearalenone exposure and additive effect of heat stress in prepubertal female pigs

Independently, both heat stress (HS) and zearalenone (ZEN) compromise female reproduction, thus the hypothesis that ZEN would affect phenotypic, endocrine, and metabolic parameters in pigs with a synergistic and/or additive impact of HS was investigated. Prepubertal gilts (n = 6–7) were assigned to:...

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Veröffentlicht in:	Journal of thermal biology 2024-01, Vol.119, p.103742-103742, Article 103742
Hauptverfasser:	Roach, Crystal M., Mayorga, Edith J., Baumgard, Lance H., Ross, Jason W., Keating, Aileen F.
Format:	Artikel
Sprache:	eng
Schlagworte:	additive effect Animals average daily gain blood composition blood serum body temperature body weight cell respiration Eating feed intake Female females Heat stress Heat-Shock Response hematocrit Hot Temperature metabolites Metabolome phenotype Pigs prolactin puberty Reproduction Respiratory Rate Sus scrofa Swine uterus vulva Zearalenone Zearalenone - toxicity
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Beschreibung
Zusammenfassung:	Independently, both heat stress (HS) and zearalenone (ZEN) compromise female reproduction, thus the hypothesis that ZEN would affect phenotypic, endocrine, and metabolic parameters in pigs with a synergistic and/or additive impact of HS was investigated. Prepubertal gilts (n = 6–7) were assigned to: thermoneutral (TN) vehicle control (TC; n = 6); TN ZEN (40 μg/kg; TZ; n = 6); pair-fed (PF; n = 6) vehicle control (PC; n = 6); PF ZEN (40 μg/kg; PZ; n = 6); HS vehicle control (HC; n = 7); and HS ZEN (40 μg/kg; HZ; n = 7) and experienced either constant 21.0 ± 0.10 °C (TN and PF) or 35.0 ± 0.2 °C (12 h) and 32.2 ± 0.1 °C (12 h) to induce HS for 7 d. Elevated rectal temperature (P
ISSN:	0306-4565 1879-0992
DOI:	10.1016/j.jtherbio.2023.103742