Fecha/hora: 08/06/2024 01:25:49

Biblioteca(s): 	INIA Las Brujas.	
Fecha corriente: 	24/05/2023	
Fecha de la última actualización: 	24/05/2023	
Autoria: 	RABAZA, A.; FRAGA, M.; MENDOZA, A.; GIANNITTI, F.	
Afiliación: 	ANA VIRGINIA RABAZA MARTINEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Institut Pasteur de Montevideo, Montevideo, 11400 Uruguay; MARTIN FRAGA COTELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.	
Título: 	A meta-analysis of the effects of colostrum heat-treatment on its viscosity and IgG concentration, and the transfer of passive immunity in newborn dairy calves.	
Año de publicación: 	2023	
Fuente/Imprenta: 	Journal of Dairy Science, 2023. https://doi.org/10.3168/jds.2022-22555 -- [Article In Press]. OPEN ACCESS.	
ISSN: 	0022-0302	
DOI: 	10.3168/jds.2022-22555	
Idioma: 	Inglés	
Notas: 	Article history: Received July 20, 2022; Accepted April 19, 2023; Published online May 08, 2023. -- Corresponding authors: Ana Rabaza, arabaza@pasteur.edu.uy; Federico Giannitti, fgiannitti@inia.org.uy -- License: This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).	
Contenido: 	ABSTRACT.- Newborn ruminants depend on colostrum intake immediately after birth to obtain immunoglobulins for effective transfer of passive immunity (TPI). As colostrum may also be a vehicle of infectious agents, heat treatment of raw colostrum is a practice aimed at eliminating or reducing its pathogen load. Despite the usefulness of heat treatment in preventing the transmission of infectious colostrum-borne diseases, heat treatment of colostrum may have some side effects. A systematic review and meta-analysis were conducted to summarize the effects of colostrum heat treatment on its viscosity and IgG concentration, and serum IgG concentration as a proxy for TPI in newborn calves fed raw versus heat-treated colostrum. Moderators were studied to identify sources of heterogeneity. Literature databases were searched for peer-reviewed articles published between 1946 and 2022. A Master of Science thesis was also included. Five, 21, and 19 original publications were quantitatively evaluated in 3 separate meta-analyses, based on predefined selection criteria. Two-level and 3-level random effects meta-analysis revealed a significant overall effect of heat treatment on colostral viscosity and IgG concentration, and serum IgG concentration in newborns.  © 2023 American Dairy Science Association	
Palabras-Clave: 	Colostrum management and transfer of passive immunity; Colostrum-borne pathogens; IgG denaturation; Multi-level meta-analysis; Neonatal infectious diseases; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA.	
Categoría del tema: 	L01 Ganadería	
URL: 	https://www.journalofdairyscience.org/action/showPdf?pii=S0022-0302%2823%2900222-9	
Registro original: 	INIA Las Brujas (LB)	
Ejemplares: 	LB - (103511-1) - PXI - AP - DD - Journal Dairy Sciences/2023 -  -  - DIS