Literature DB >> 12528831

Evaluation of the reliability and repeatability of automated milk urea nitrogen testing.

P Arunvipas1, J A VanLeeuwen, I R Dohoo, G P Keefe.   

Abstract

The purpose of this study was to evaluate the reliability (precision and accuracy), and repeatability of an infrared method of determining milk urea nitrogen. The reference method used for the reliability assessment was a wet-chemistry, enzymatic determination of milk urea nitrogen. Reliability and repeatability, as measured by concordance correlation coefficients, were 0.97 and 0.99, respectively.

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Year:  2003        PMID: 12528831      PMCID: PMC227029     

Source DB:  PubMed          Journal:  Can J Vet Res        ISSN: 0830-9000            Impact factor:   1.310


  3 in total

1.  Analytic validation of an infrared milk urea assay and effects of sample acquisition factors on milk urea results.

Authors:  S M Godden; K D Lissemore; D F Kelton; J H Lumsden; K E Leslie; J S Walton
Journal:  J Dairy Sci       Date:  2000-03       Impact factor: 4.034

2.  A concordance correlation coefficient to evaluate reproducibility.

Authors:  L I Lin
Journal:  Biometrics       Date:  1989-03       Impact factor: 2.571

3.  Comparing methods of measurement: why plotting difference against standard method is misleading.

Authors:  J M Bland; D G Altman
Journal:  Lancet       Date:  1995-10-21       Impact factor: 79.321

  3 in total
  4 in total

1.  Relationships among milk urea-nitrogen, dietary parameters, and fecal nitrogen in commercial dairy herds.

Authors:  Pipat Arunvipas; John A VanLeeuwen; Ian R Dohoo; Greg P Keefe; Shelley A Burton; Kerry D Lissemore
Journal:  Can J Vet Res       Date:  2008-10       Impact factor: 1.310

2.  Bulk tank milk urea nitrogen: seasonal patterns and relationship to individual cow milk urea nitrogen values.

Authors:  P Arunvipas; J A VanLeeuwen; I R Dohoo; G P Keefe
Journal:  Can J Vet Res       Date:  2004-07       Impact factor: 1.310

3.  Exploring factors associated with bulk tank milk urea nitrogen in Central Thailand.

Authors:  Suppada Kananub; Wassana Jawjaroensri; John VanLeeuwen; Henrik Stryhn; Pipat Arunvipas
Journal:  Vet World       Date:  2018-05-18

4.  Efficiency of Crude Protein Utilisation in Grazing Dairy Cows: A Case Study Comparing Two Production Systems Differing in Intensification Level in New Zealand.

Authors:  Martín Correa-Luna; Daniel Donaghy; Peter Kemp; Michael Schutz; Nicolas López-Villalobos
Journal:  Animals (Basel)       Date:  2020-06-15       Impact factor: 2.752

  4 in total

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