Foetal and postnatal exposure to high temperatures alter growth pattern but do not modify reproductive function in male rabbits

Autor:	C. Naturil-Alfonso, Raquel Lavara, Fernando García-Diego, Francisco Marco-Jiménez, E. Jiménez-Trigos, Jose S. Vicente
Rok vydání:	2014
Předmět:	Male Cancer Research medicine.medical_specialty Hot Temperature Cell Survival Physiology Offspring media_common.quotation_subject Period (gene) Semen Fertility PRODUCCION ANIMAL Biology Foetal programming Fetus Pregnancy Physiology (medical) Internal medicine Lactation Testis medicine Animals Climate change Testosterone reproductive and urinary physiology media_common Reproductive function Adulthood Spermatozoa Sperm Endocrinology medicine.anatomical_structure Prenatal Exposure Delayed Effects FISICA APLICADA Sperm Motility Gestation Female Rabbits
Zdroj:	Digital.CSIC. Repositorio Institucional del CSIC instname RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
ISSN:	1464-5157 0265-6736
DOI:	10.3109/02656736.2013.878042
Popis:	[Purpose]: The 'foetal origin hypothesis' postulates that a number of organ structures and associated functions undergo programming during embryonic and foetal life and the neonatal period, which determines the set point of physiological and metabolic responses that carry into adulthood. We evaluate the relationship between high environmental temperatures and the reproductive function of male offspring to determine whether pregnant mammals and their infants are potentially vulnerable to the effects of climate change. [Methods]: Rabbit pups were exposed to high temperatures during gestation and lactation. [Results]: Foetal and postnatal exposure to high temperatures did not alter semen characteristics and was associated with a similar fertility rate and number of pups born. Moreover, males showed reduced rate of maturing and carcass traits at adulthood. [Conclusion]: Our findings suggest that male exposure during the foetal period to high temperatures did not affect sperm quality but permitted an adaptive phenotypic plasticity of growth in adulthood. © 2014 Informa UK Ltd.
Databáze:	OpenAIRE
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