Please use this identifier to cite or link to this item:

Title: Contraste leiteiro: Ferramentas de monitorização para uma melhor eficiência das explorações leiteiras – Ureia
Authors: Domingues, Ines
Vaz, Pedro
Moreira, Rui
Infante, Paulo
Conceição, Cristina
Keywords: cow milk recording
milk urea nitrogen
non-nutritional factors
Issue Date: 19-Sep-2019
Publisher: Associação Portuguesa de Engenharia Zootécnica (APEZ)
Citation: 3) Domingues, I., Vaz, P., Moreira, R., Infante, P. & Conceição, C. (2019). Contraste leiteiro: Ferramentas de monitorização para uma melhor eficiência das explorações leiteiras – Ureia. Revista Portuguesa de Zootecnia: Edição especial XXI ZOOTEC – 21º Congresso Nacional de Zootecnia. Ano IV, nº2: 79-85.
Abstract: MILK RECORDING: MONITORING TOOL FOR GREATER DAIRY FARMS EFFICIENCY – MILK UREA ABSTRACT: The interpretation of milk metabolites from milk recording, can be a possible nutritional and management tool for dairy farmers. Some nutrient imbalances and environment impact of farms can be diagnosed by milk urea nitrogen (MUN) concentration in milk. A generalized linear mixed regression model (GLMM) was constructed to determine non-nutritional factors associated with MUN greater than 300mg/kg. This study analyzed 110,461 individual milk samples of 9,523 lactating dairy cows collected monthly from January 2015 to March 2017 from 27 herds of South of Portugal. The models show that milk production, the stage and number of lactations, the milk protein and the relation of fat/protein influenced the MUN concentration. In conclusion the GLMM application optimize the potential of milk recording to advise dairy farmers and non-nutritional factors should be considered. KEYWORDS: cow milk recording, milk urea nitrogen, non-nutritional factors
Type: article
Appears in Collections:MED - Publicações - Artigos em Revistas Nacionais Com Arbitragem Científica

Files in This Item:

File Description SizeFormat
3) RPZ - Domingues et al., 2019.pdf2.97 MBAdobe PDFView/Open
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Dspace Dspace
DSpace Software, version 1.6.2 Copyright © 2002-2008 MIT and Hewlett-Packard - Feedback
UEvora B-On Curriculum DeGois