Fecha/hora: 31/05/2024 22:10:38

Biblioteca(s): | INIA Treinta y Tres.
Tipo de la producción científica: | Capítulo en Libro Técnico-Científico
Fecha corriente: | 11/11/2019
Fecha de la última actualización: | 11/11/2019
Autoria: | BIELLI, A.; PÉREZ-CLARIGET, R.
Afiliación: | A. BIELLI, Departamento de Morfología y Desarrollo, Facultad de Veterinaria, Montevideo, Uruguay; R. PÉREZ-CLARIGET, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Montevideo, Uruguay.
Título: | Efectos de la subnutrición durante la gestación sobre el desarrollo del aparato reproductor del cordero.
Año de publicación: | 2019
Fuente/Imprenta: | In: QUINTANS, G.; IEWDIUKOW, M. (Ed.). Primer Seminario Técnico de Programación Fetal. Montevideo (UY): INIA, 2019. p. 111-124.
Série: | (INIA Serie Técnica; 252)
ISBN: | 978-9974-38-436-1
ISSN: | 1688-9266
Idioma: | Español

Contenido:

ABSTRACT
Fetal programming by undernourishment refers to the effects of early life subnutrition on organ development later in life. Sheep breeding in Uruguay occurs normally in autumn, with parturitions in late winter or early spring. Since pasture production and quality is lowest in winter, most pregnant sheep are subject to nutrient restriction. We hereby present four experiments which describe deleterious effects of undernourishment during gestation on reproductive organs development of the lambs. We hypothesized that intrauterine subnutrition affects reproductive organs development in male lambs. Three experiments were carried out on natural pasture in Uruguay, and one of them was carried out under indoors, controlled conditions. Our results on 70 day fetuses, newborn lambs, as well as 100 and 200 days old lambs indicate
that subnutrition during early life determines smaller testes and external genitalia, lower scrotal circumference, and lower numbers of Sertoli cells which may limit the reproductive potential of rams in adulthood.

Palabras-Clave: | DESARROLLO TESTICULAR; FETAL PROGRAMMING; NUTRITIONAL RESTRICTION; OVINOS; PROGRAMACIÓN FETAL; RESTRCCIÓN NUTRICIONAL; SHEEP; TESTICULAR DEVELOPMENT.
Categoría del tema: | L53 Fisiología Animal - Reproducción
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/13792/1/St-252-p-111-124-Bielli.pdf
Registro original: | INIA Treinta y Tres (TT)
Ejemplares: | TT - (102922-1) - INI - PL - DD - UY/INIA/ST/252/2019 -  - st-252 - DIS