Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 418662
Title Prediction of beta-lactoglobulin genotypes based on milk Fourier transform infrared spectra
Author(s) Rutten, M.J.M.; Bovenhuis, H.; Heck, J.M.L.; Arendonk, J.A.M. van
Source Journal of Dairy Science 94 (2011)8. - ISSN 0022-0302 - p. 4183 - 4188.
Department(s) Animal Breeding and Genetics
Product Design and Quality Management Group
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) protein-composition - genetic-polymorphism - casein - cattle - cows
Abstract ß-Lactoglobulin (ß-LG) genotypes are associated with differences in bovine milk protein composition. Therefore, ß-LG genotypes are of direct relevance for the dairy industry. In this study, we predicted ß-lactoglobulin genotypes based on routinely recorded milk Fourier transform infrared spectra using 500 calibration samples. The results show that 76% of the cows carrying the ß-LG AA genotype, 80% of the cows carrying the ß-LG AB genotype, and 66% of the cows carrying the ß-LG BB genotype were predicted correctly. Furthermore, the prediction of ß-LG genotypes based on Fourier transform infrared spectra showed a repeatability of 0.85. We discuss how the combined use of predicted ß-LG genotypes, pedigree information, and ß-LG genotypes derived using other methods could lead to further improvement in the percentage of correctly predicted ß-LG genotypes. The presented methodology is easy and inexpensive and could ultimately provide ß-LG genotypes at the individual cow level.
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