Finishing feedlot lambs in enriched pens using feeder ramps and straw and its influence on behavior and physiological welfare indicators

Genaro Miranda-de la Lama, 0000-0002-6848-1010; Lorena Aguayo Ulloa, 0000-0002-3825-9515; Morris Villarroel, 0000-0003-2542-3985; Maria Pascual Alonso, 0000-0001-7012-2095

Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/20.500.12222/190

Título :	Finishing feedlot lambs in enriched pens using feeder ramps and straw and its influence on behavior and physiological welfare indicators
Autor(es) :	Genaro Miranda-de la Lama, 0000-0002-6848-1010; Lorena Aguayo Ulloa, 0000-0002-3825-9515; Morris Villarroel, 0000-0003-2542-3985; Maria Pascual Alonso, 0000-0001-7012-2095
Autor(es) sin ID:	María, Gustavo A.
Fecha de publicación :	2014
Tipo de resultado Científico:	preprint
Materia o Disciplina:	CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA
Palabras clave:	Enriquecimiento ambiental de corderos; Comportamiento de corderos; Bienestar animal; Full environmental enrichment; Finishing lambs; Animal welfare
Descripción :	Sixty lambs were placed in enriched (EE) or conventional (CO) pens (3 pens per treatment or 10 lambs per pen), in which the EE pens had a wooden platform with ramps giving access to a concentrate hopper, straw as bedding and forage, and a further ramp for play. The CO pen was barren without any enrichment. The general behavior of the lambs and the use of space were similar for both treatments; however, CO lambs developed significantly more stereotypies (P ≤ 0.05). The EE lambs resolved a T-maze more quickly (P ≤ 0.05), and their physiological adaptation response to the feedlot environment was more efficient. The CO lambs mobilized more body reserves and had lower levels of immunity (i.e., increased nonesterified fatty acid and neutrophil/lymphocyte ratio, respectively, P ≤ 0.05) than EE lambs at the end of the fattening period, which indicates chronic stress, probably associated with the barren environment. The EE lambs had a higher (P ≤ 0.05) average daily gain, heavier carcasses and higher fattening scores, as well as lower pHult. This study shows that enrichment can improve the welfare of feedlot lambs by reducing stereotypies and enhancing the physiological adaptation response to a novel environment.
Editor:	Universidad Autónoma Metropolitana. Unidad Lerma
URI :	http://hdl.handle.net/20.500.12222/190
Condiciones de licencia:	http://creativecommons.org/licenses/by-nc-nd/4.0/
Aparece en las colecciones:	Artículos Científicos

Ficheros en este ítem:

Fichero	Descripción	Tamaño	Formato
000091.pdf		252.06 kB	Adobe PDF	Visualizar/Abrir
000091.xml		171.22 kB	XML	Visualizar/Abrir

Este ítem está protegido por copyright original

Visualizar la licencia

Mostrar el registro Dublin Core completo del ítem Recomiende este ítem

Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons

Repositorio Institucional UAM Lerma - XOGI Conocimiento Abierto.

XOGI, el Repositorio Institucional de UAM-Lerma; tiene como objetivo preservar, centralizar y garantizar el acceso abierto a la producción científica, académica, artística y cultural de la institución.