Reliability of results of milk urea analysis by various methods using artificial milk control samples

Czech Journal of Animal Science

Volumn 53, Issue 4, 2008, Pages 152-161

  Hanus O ^a   Hering, P ^b   Frelich, J ^c   Jilek M ^d   Gencurova V ^a   Jedelska R ^a  

^a Agro Research Rapotín   (Czech Republic)

^b Czech Moravia Breeders Corporation   (Czech Republic)

^c UNIVERSITY OF SOUTH BOHEMIA   (Czech Republic)

^d Laboratory Servise   (Czech Republic)

Author keywords

Correlation; Cow; Method of analysis; Milk; Recovery; Result reliability; Urea

Indexed keywords

BOS;

EID: 42449085750     PISSN: 12121819     EISSN: None     Source Type: Journal    
DOI: 10.17221/376-cjas     Document Type: Article

References (45)

1. Baker L.D., Fergusson J.D., Chalupa W. (1995): Response in urea and true protein of milk to different protein feeding schemes for dairy cows. J. Dairy Sci., 78, 2424-2434.
2. nd ICAR Session, Bled, Slovenia.
3. Broutin P.J. (2006a): New applications of mid-infra-red spectrometry for the analysis of milk and milk products. 1 Casein. IDF Bull., 406, 2-21.
4. th ICAR Session, Kuopio, Finland.
5. Butler W.R., Calaman J.J., Beam S.W. (1996): Plasma and milk urea nitrogen in relation to pregnancy rate in lactating dairy cattle. J. Anim. Sci., 74, 858-865.
6. Carlsson J., Bergström J. (1994): The diurnal variation of urea in cow's milk and how milk fat content, storage and preservation affects analysis by a flow injection technique. Acta Vet. Scand., 35, 67-77.
7. Ciana L.D., Caputo G. (1996): Robust, reliable biosensor for continuous monitoring of urea during dialysis. Clin. Chem., 47, 1079-1085.
8. Guilbault G.G., Montalvo J.G. (1970): An enzyme electrode for the substrate urea. J. Am. Chem. Soc., 92, 2533-2538.
9. Gustafsson A.H., Palmquist D.L. (1993): Diurnal variation of rumen ammonia, serum urea, and milk urea in dairy cows at high and low recovery. J. Dairy Sci., 76, 475-484.
10. Hanuš O., Genčurová V., Ponížil A., Hlásný K., Gabriel B., Míčová Z. (1993a): The effects of year season, urea, acetone and nitrate additions and native content of microelements on cow's milk fermentation. Živoč. Výr., 38, 753-762. (in Czech)
11. Hanuš O., Beber K., Ficnar J., Genčurová V., Gabriel B., Beranová A. (1993b): Relationship between the fermentation of bulk milk sample, its composition and contents of some metabolites. Živoč. Výr., 38, 635-644. (in Czech)
12. Hanuš O., Jílek M., Ficnar J., Beranová A., Jedelská R., Havlíčková K., Míč ová Z. (1995): Ways of preparing standards for calibration of indirect methods of determination of urea concentration in milk. Živoč. Výr., 40, 441-451. (in Czech)
13. Hanuš O., Ficnar J., Kopecký J., Jedelská R., Beranová A., Havlíčková K. (1997): A retrospective study of results and evolution of methodical design for preparation of urea milk calibration standard sets. Výzkum v chovu skotu, 2, 7-21. (in Czech)
14. Hanuš O., Pytloun J., Matouš E., Ficnar J., Genčurová V. (1999): The process of international integration in the framework of commercial importance of analytical work quality control in in dairying - ICAR reference laboratory network. Výzkum v chovu skotu, 4, 35-46. (in Czech)
15. Hanuš O., Leray O., Pytloun J., Menegain E., Trossat P., Genčurová V., Matouš E., Kopecký J., Jedelská R., Dolínková A. (2000): A retrospective of the international laboratory integration impact on reliability of milk analysis data. Acta Univ. Agric. Silvic. Mendel. Brun., 4, 121-131. (in Czech)
16. Hanuš O., Skyva J., Hofbauer J., Klopčič M., Genčurová V., Jedelská R. (2001): Reliability of analytical methods applicable at milk urea determination. Acta Univ. Agric. Silvic. Mendel. Brun., 3, 143-154. (in Czech)
17. Hanuš O., Genčurová V., Janů L., Macek A., Hering P., Klimeš M., Zajíčková I. (2006): The analytical result quality assurance at milk composition determination by modifications of laboratory proficiency tests. Výzkum v chovu skotu, 173, 1-19. (in Czech)
18. Hanuš O., Hering P., Frelich J., Jílek M., Genčurová V., Jedelská K. (2008): Reliability of result of milk urea analysis by various methods using artificial milk control samples. Czech J. Anim. Sci., 53, 151-160.
19. Herre A. (1998): Den Harnstoff-Werten nicht blind vertrauen! Top Agrar., 2, R10.
20. Hojman D., Kroll O., Adin G., Gips M., Hanochi B., Ezra E. (2004): Relationships between milk urea and production, nutrition and fertility traits in Israeli dairy herds. J. Dairy Sci., 87, 1001-1011.
21. Homolka P., Vencl B. (1993): Urea concentrations in milk and their relationship to the crude protein and energy ratio in feed rations. Živoč. Výr., 38, 529-535. (in Czech)
22. Jílek F., Řehák D., Volek J., Ští pková M., Němcová E., Fiedlerová M., Rajmon R., Švestková D. (2006): Effect of herd, parity, stage of lactation and milk yield on urea concentration in milk. Czech J. Anim. Sci., 51, 510-517.
23. Jonker J.S., Kohn R.A., Erdman R.A. (1999): Milk urea nitrogen target concentrations for lactating dairy cows fed according to national research council recommendations. J. Dairy Sci., 82, 1261-1273.
24. Kirchgessner M., Kreuzer M., Roth Maier, Dora A. (1986): Milk urea and protein content to diagnose energy and protein malnutrition of dairy cows. Arch. Anim. Nutr., 36, 192-197.
25. Klopčič M., Pogačar J., Hanuš O. (1999): Comparison of urea content in milk, measured in different laboratories. Acta Agr. Kapos., 3, 71-77.
26. Koncki R., Mohr G.J., Wolfbeis O.S. (1995): Enzyme biosensor for urea based on a novel pH bulk optode membrane. Biosens. Bioelectron., 10, 653-659.
27. Kubešová M. Frelich J. Maršálek M. (2005): Relation of milk components content and reproduction indexes in dairy cows. Collection of Scientific Papers Faculty of Agriculture in České Budějovice Series for Animal Sciences, 2, 129-238. (in Czech)
28. Lefier D. (1999): Comparison of the analytical characteristics of the enzymatic methods for urea determination in milk. 1998. IDF Questionnaire- Report. Urea determination - selection of a reference method for the determination of the urea content of milk. 2099/E.
29. Lefier D., Grappin R., Pochet S. (1996): Determination of fat, protein and lactose in raw milk by Fourier transform infrared spectroscopy and by analysis with a conventional filter-based milk analyzer. J. AOAC Int., 79, 711-717.
30. Leray O. (1993): CECALAIT: an organization to support analytical quality assurance in dairy laboratories. In: Proc. International Analytical Quality Assurance and Good Laboratory Practice in Dairy Laboratories. Sonthofen/Germany, Brussels. 349-360.
31. th ICAR and Interbull Meeting, Kuopio, Finland.
32. Oltner R., Bengtsson S., Larson K. (1985): Flow injection analysis for the determination of urea in cows milk. Acta Vet. Scand., 26, 396-404.
33. Patton C.J., Crouch S.R. (1977): Spectrophotometric and kinetics investigation of the Berthelot reaction for the determination of ammonia. Anal. Chem., 49, 464-466.
34. Peterson A.B., French K.R., Russek-Cohen E., Kohn R.A. (2004): Comparison of analytical methods and the influence of milk components on milk urea nitrogen recovery. J. Dairy Sci., 87, 1747-1750.
35. Rajamäki S., Rauramaa A. (1984): The automated determination of urea in milk. Finn. Chem. Lett., 47-48.
36. th June 2006, Kuopio, Finland, 53-59.
37. Říha J., Hanuš O. (1999): The relationships between reproduction indicators of dairy cow herds and metabolical and compositional indicators in bulk milk samples. Výzkum v chovu skotu, 2, 1-6. (in Czech)
38. Sansubrino A., Mascini M. (1994): Development of an optical fibre sensor of ammonia, urea, urease and IgG. Biosens. Bioelectron., 9, 207-216.
39. Sheppard N.F., Mears D.J., Guiseppi-Elie A. (1996): Model of an immobilized enzyme conductimetric urea biosensor. Biosens. Bioelectron., 11, 967-979.
40. Strusiňska D., Minakowski D., Pysera B., Kaliniewicz J. (2006): Effects of fat-protein supplementation of diets for cows in early lactation on milk yield and composition. Czech J. Anim. Sci., 51, 196-204.
41. Sundaram P.V. (1979): Immobilized - Enzyme Pipette. Biochem. J., 179, 445-447.
42. Thavarungkul P., Häkanson H., Holst O., Matiasson B. (1991): Continuous monitoring of urea in blood during dialysis. Biosens. Bioelectron., 101-107.
43. Wolfschoon-Pombo A., Klostermeyer H., Buchberger J., Graml R. (1981): Harnstoff in der NPN-Fraktion der Kuhmilch - Bestimmung, Vorkommen und Beeinflussung. Milchwissenschaft, 36, 426-466.
44. Wood R., Nilsson A., Wallin H. (1998): Role of proficiency testing in the assessment of laboratory quality. In: Quality in the Food Analysis Laboratory. The Royal Society of Chemistry, Cambridge, UK, 172-202.
45. Zhai S.W., Liu J.X., Wu Y.M., Ye J.A., Xu Y.N. (2006): Responses of milk urea nitrogen content to dietary crude protein level and degradability in lactating Holstein dairy cows. Czech J. Anim. Sci., 51, 518-522.