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Effects of dietary urea levels on milk protein fractions of Holstein cows
(ELSEVIER SCIENCE BV, 2008)
The aim of this study was to evaluate the effects of substituting soybean meal for urea on milk protein fractions (casein, whey protein and non-protein nitrogen) of dairy cows in three dietary levels. Nine mid-lactation ...
Validation of models for predicting milk urea nitrogen concentrations, estimating dry matter intake by the NRC (2001)
(Sociedade Brasileira de Zootecnia, 2012)
The objective of this study was to validate three different models for predicting milk urea nitrogen using field conditions, attempting to evaluate the nutritional adequacy diets for dairy cows and prediction of nitrogen ...
Correlation of milk urea level with physico-chemical and nutritional composition of diets for cattle in Pichincha provinceCorrelación de niveles de urea en leche con características físico-químicas y composición nutricional de dietas bovinas en ganaderías de la provincia de Pichincha
(Universidad Politécnica Salesiana, 2013)
Correlation Between Milk and Blood Urea Nitrogen in High and Low Yielding Dairy Cows
(2010)
A study was carried out in two dairy farms (Olocuilta and Los Conacastes)
in the central region of El Salvador. Sixty Holstein cows were
grouped according to milk yield and days in milk: high yielding
(HY, 30–90 d in ...
Physicochemical composition and fatty acid profile of milk from F1 Holstein x Zebu cows fed with increasing concentrations of urea
(2015-01-01)
We evaluated the physicochemical composition and fatty acid profile of milk from F1 Holstein × Zebu cows that were fed increasing levels of urea (0%, 33%, 66% and 100%, corresponding to 0%, 0.92%, 1.84% and 2.77% CP as ...
Effect of water addition on freezing point and components of raw milk from Jersey and Holstein cowsEfecto de agregar agua sobre el punto crioscópico y componentes de la leche cruda de vacas Jersey y Holstein
(Universidad Estatal a Distancia, Costa Rica, 2019)
Variation of milk urea nitrogen according to milk yield and milk protein in Holstein cows in Boyacá, ColombiaVariación de la concentración de nitrógeno ureico en leche según la producción de leche y contenido proteico en vacas Holstein en Boyacá, Colombia
(Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria, 2023)
Urea in sugarcane-based diets for dairy cows
(Revista Brasileira de Zootecnia, 2017)
Efecto de agregar agua sobre el punto crioscópico y componentes de la leche cruda de vacas Jersey y Holstein
(2019)
Introducción: El punto crioscópico se usa para evaluar la calidad de la leche cruda entera y sus productos. Objetivo: Determinar el efecto de agregar agua sobre el punto crioscópico, composición bromatológica, ...