Fecha/hora: 11/06/2024 11:47:25

Biblioteca(s): 	INIA Las Brujas.	
Fecha corriente: 	13/06/2023	
Fecha de la última actualización: 	13/06/2023	
Autoria: 	TECHEIRA, N.; KEEL, K.; GARAY, A.; HARTE, F.; MENDOZA, A.; FARIÑA, S.; LÓPEZ-PEDEMONTE, T.	
Afiliación: 	N. TECHEIRA, Unidad de Ciencia y Tecnología de Lácteos, Universidad Tecnológica del Uruguay, 70200, La Paz, Colonia, Uruguay; K. KEEL, Unidad de Ciencia y Tecnología de Lácteos, Universidad Tecnológica del Uruguay, 70200, La Paz, Colonia, Uruguay; A. GARAY, Unidad de Ciencia y Tecnología de Lácteos, Universidad Tecnológica del Uruguay, 70200, La Paz, Colonia, Uruguay; F. HARTE, Department of Food Science, Pennsylvania State University, State College 16802; ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SANTIAGO FARIÑA, INIA (Instituto Nacional de Investigación Agropecuaria); T. LÓPEZ-PEDEMONTE, Unidad de Ciencia y Tecnología de Lácteos, Universidad Tecnológica del Uruguay, 70200, La Paz, Colonia, Uruguay.	
Título: 	Milk fatty acid profile from grass feeding strategies on 2 Holstein genotypes: Implications for health and technological properties. (Short Communication, Dairy Foods).	
Año de publicación: 	2023	
Fuente/Imprenta: 	JDS Communications. May 2023, Volume 4, Issue 3, Pages 169-174. https://doi.org/10.3168/jdsc.2022-0273 -- OPEN ACCESS.	
ISSN: 	2666-9102.	
DOI: 	10.3168/jdsc.2022-0273	
Idioma: 	Inglés	
Notas: 	Article history: Received 14 June 2022, Accepted 17 November 2022, Available online 16 February 2023, Version of Record 8 June 2023. -- Corresponding author: nora.techeira@utec.edu.uy -- Funding: This study received no external funding. -- License: This is an open access article under the CC BY license (http://
creativecommons.org/licenses/by/4.0/) --	
Contenido: 	ABSTRACT.- The objective of the study was to determine if a feeding system with a variable supply of grass promoted rapid changes in the fatty acid profile and technological and health indices of milk obtained from North American (NAHF) and New Zealand (NZHF) Holstein-Friesian cows. Two feeding strategies were conducted: fixed grass (GFix) and maximized grass intake when available (GMax). The results showed that as the grass intake increased in the GMax treatments, the relative amount of palmitic acid in milk decreased, whereas oleic, linoleic, linolenic, and conjugated linoleic acids increased, causing a reduction in the atherogenic, thrombogenic, and spreadability calculated indices. The changes occurred in rapid response to the changing diet, with reductions ranging from approximately 5 to 15% in the healthy and technological indices within a period of 15 d of grass intake increase. Differences were found between the 2 genotypes, with NZHF responding faster to changes in grass intake. © 2023, The Authors. Published by Elsevier Inc. and Fass Inc. on behalf of the American Dairy Science Association.	
Palabras-Clave: 	Feeding system; Fixed grass (GFix); Maximized grass (GMax); Milk.	
Categoría del tema: 	L02 Alimentación animal	
URL: 	https://www.sciencedirect.com/science/article/pii/S2666910223000200/pdf	
Registro original: 	INIA Las Brujas (LB)	
Ejemplares: 	LB - (103537-1) - PXI - AP - DD - JDS Communications/2023 -  -  - DIS