Fecha/hora: 21/05/2024 14:28:36

Biblioteca(s): 	INIA Las Brujas.	
Fecha corriente: 	28/02/2024	
Fecha de la última actualización: 	28/02/2024	
Autoria: 	DAMIÁN, J.P.; CASTILLO, L.; PONS, V.; GIL, J.; SUÁREZ, G.; TERRAZAS, A.; GONZALEZ, D.; VAN LIER, E.; BANCHERO, G.	
Afiliación: 	JUAN PABLO DAMIÁN, Departamento de Biociencias Veterinarias, Facultad de Veterinaria, Universidad de la República, Uruguay; Núcleo de Bienestar Animal, Facultad de Veterinaria, Universidad de la República, Uruguay; LAURA CASTILLO, Departamento de Ciencias Pecuarias, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México; VICTORIA PONS, Laboratorio de Reproducción Animal, Facultad de Veterinaria, Udelar, CENUR-LN, Uruguay; JORGE GIL, Laboratorio de Reproducción Animal, Facultad de Veterinaria, Udelar, CENUR-LN, Uruguay; GONZALO SUÁREZ, Departamento de Clínicas y Hospital Veterinario, Facultad Veterinaria, Universidad de la República, Uruguay; ANGÉLICA TERRAZAS, Departamento de Ciencias Pecuarias, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México; DAMIAN GASTON GONZALEZ PINO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ELIZE VAN LIER, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Uruguay; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.	
Título: 	Sexual behaviour of young rams is improved and less stressful after intranasal administration of oxytocin.	
Año de publicación: 	2024	
Fuente/Imprenta: 	Domestic Animal Endocrinology. 2024, Volume 87, Article 106837. https://doi.org/10.1016/j.domaniend.2023.106837	
ISSN: 	0739-7240	
DOI: 	10.1016/j.domaniend.2023.106837	
Idioma: 	Inglés	
Notas: 	Article history: Received 17 October 2023; Received in revised form 23 December 2023; Accepted 25 December 2023; Available online 28 December 2023; To be Published April 2024. -- Correspondence: Damián, J.P.; Departamento de Biociencias Veterinarias and Núcleo de Bienestar Animal, Facultad de Veterinaria, Universidad de la República, Ruta 8 km 18, CP, Montevideo, Uruguay; email:jpablodamian@gmail.com --	
Contenido: 	ABSTRACT.- The aim of this study was to determine if intranasal administration of oxytocin modifies sexual behaviour and the stress response in young rams during sexual tests with ewes in oestrus. Ten rams were used in a cross-over design. At Day 0, the control group (CG, n = 5) received isotonic saline spray intranasally, and the treated group (OTG, n = 5) received oxytocin (24 IU) intranasally, 40 min before the sexual test. At Day 15, the groups were reversed. In each sexual test (20 min) with an oestrous-induced ewe, the sexual behaviour of the young rams was recorded. Serum cortisol concentrations were determined before and after the test. Less flehmen was observed in the OTG, but mounts with ejaculation were increased. The OTG presented lower serum cortisol concentration than the CG. In conclusion, intranasal administration of oxytocin modified the sexual behaviour of rams, evidenced by a decrease in flehmen behaviour and an increase in mounts with ejaculation, making sexual activity more efficacious. In addition, the treatment decreased the stress response of the rams in the sexual tests. Therefore, intranasal administration of oxytocin could be used to increase sexual activity in rams, and with less stress, providing better welfare conditions. © 2023 Elsevier Inc.	
Palabras-Clave: 	Animal welfare; Cortisol; Estrumate (Drug tradenames); Hormone treatment; Reproduction; Sheep; SISTEMA GANADERO EXTENSIVO - INIA.	
Thesagro: 	BIENESTAR ANIMAL; OVINOS; REPRODUCCION ANIMAL.	
Categoría del tema: 	L10 Genética y mejoramiento animal	
Registro original: 	INIA Las Brujas (LB)	
Ejemplares: 	LB - (103824-1) - PXI - AP - DD - Domestic Animal Endocrinology/2024 -  -  - DIS