Fecha/hora: 11/06/2024 09:19:18

Biblioteca(s): 	INIA Las Brujas.	
Fecha corriente: 	29/02/2024	
Fecha de la última actualización: 	29/02/2024	
Autoria: 	AZEVEDO, L.A.; CANOZZI, M.E.A.; RODHERMEL, J.C.B; SCHWEGLER, E.; LA MANNA, A.; CLARIGET, J.M.; BIANCHI, I.; MOREIRA, F.; OLSSON, D.C.; PERIPOLLI, V.	
Afiliación: 	LUCIANO ARAUJO AZEVEDO, Curso de Pós-Graduação em Produção e Sanidade Animal (PGPSA), Instituto Federal Catarinense, Campus Araquari, SC, Araquari, 89245-000, Brazil; MARÍA EUGENIA ANDRIGHETTO CANOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JULIO CESAR BAILER RODHERMEL, Instituto Federal Catarinense, Campus Araquari, SC, 89245-000, Brazil; ELIZABETH SCHWEGLER, Curso de Pós-Graduação em Produção e Sanidade Animal (PGPSA), Instituto Federal Catarinense, Campus Araquari, SC, Araquari, 89245-000, Brazil; ALEJANDRO FRANCISCO LA MANNA ALONSO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JUAN MANUEL CLARIGET BRIZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; IVÁN BIANCHI, Curso de Pós-Graduação em Produção e Sanidade Animal (PGPSA), Instituto Federal Catarinense, Campus Araquari, SC, Araquari, 89245-000, Brazil; FABIANA MOREIRA, Curso de Pós-Graduação em Produção e Sanidade Animal (PGPSA), Instituto Federal Catarinense, Campus Araquari, SC, Araquari, 89245-000, Brazil; DÉBORA CRISTINA OLSSON, Curso de Pós-Graduação em Produção e Sanidade Animal (PGPSA), Instituto Federal Catarinense, Campus Concórdia, SC, Concórdia, 89703-720, Brazil; VANESSA PERIPOLLI, Curso de Pós-Graduação em Produção e Sanidade Animal (PGPSA), Instituto Federal Catarinense, Campus Araquari, SC, Araquari, 89245-000, Brazil.	
Título: 	Strategies to alleviate heat stress on performance and physiological parameters in feedlot-finished cattle under heat stress conditions. A systematic review-meta-analysis.	
Año de publicación: 	2024	
Fuente/Imprenta: 	Journal of Thermal Biology. 2024, Volume 119, Article 103798. https://doi.org/10.1016/j.jtherbio.2024.103798	
ISSN: 	0306-4565	
DOI: 	10.1016/j.jtherbio.2024.103798	
Idioma: 	Inglés	
Notas: 	Article history: Received 11 September 2023; Received in revised form 23 December 2023; Accepted 16 January 2024; Available online 24 January 2024. -- Correspondence: Peripolli, V.; Curso de Pós-Graduação em Produção e Sanidade Animal (PGPSA), Instituto Federal Catarinense, Campus Araquari, SC, Araquari, Brazil; email:vanessa.peripolli@hotmail.com -- Funding: Vanessa Peripolli was supported by productivity research fellowship from CNPq (grant number 309770/2023-8 ). -- Supplementary data to this article can be found online at https://doi.org/10.1016/j.jtherbio.2024.103798 --	
Contenido: 	ABSTRACT.- Strategies to alleviate heat stress on live performance - dry matter intake (DMI), average daily gain (ADG), and feed conversion efficiency (FCE) - and on physiological parameters - respiratory rate (RR) and panting score (PS) - of feedlot-finished cattle were evaluated by systematic review-meta-analysis. Using the PICO framework were identified 3813 records, with 31 publications and 6729 cattle being considered in the meta-analysis (MA). The comparison most reported was sun vs. shade (n = 24 publications), followed by shade vs. shade (area per animal and effectivity in reduce solar load) (n = 7 publications) and sun vs. sprinkling (n = 4 publications). Cattle with access to shade with total reduction in solar load improved ADG (p = 0.008) and FCE (p = 0.024), and reduced RR (p < 0.001) compared to unshaded animals. Cattle with access to shade with a height between 3 and 4 m increased ADG (p < 0.001), tended to improve FCE (p = 0.054), and reduced RR (p < 0.001) compared to unshaded animals. An area of shade from 2 to 4 m2/animal increased ADG (p = 0.002), and higher than 4 m2/animal reduced RR (p < 0.001) compared to unshaded animals. Animals that received sprinkling volume below 1 L/animal/min improved ADG (p = 0.008) compared to unshaded animals. Cattle with access to shade with a high area per animal improved DMI (p = 0.023) and ADG (p < 0.001) compared to animals with a low area. In univariate meta-regression, it was observed that the variables significantly (P < 0.05) influencing DMI were THI category; influencing ADG were cattle gender, THI category, and coat color; influencing FCE were cattle age and hemisphere; and influencing RR were country, THI category and climate. Performance and physiological parameters of feedlot-finished cattle under heat stress depend on animal and environmental characteristics. © 2024 Elsevier Ltd	
Palabras-Clave: 	Average daily gain; Heat stress; Respiratory rate; Shade; Sprinkler.	
Categoría del tema: 	L02 Alimentación animal	
Registro original: 	INIA Las Brujas (LB)	
Ejemplares: 	LB - (103827-1) - PXI - AP - DD - Journal of Thermal Biology/2024 -  -  - DIS