Milk analyses: a comparison between a simple IR-instrument for use on farm level and available IR-methods

K. Svennersten-Sjaunja; M. SjÃ¶gren; I. Andersson; L-O. Sjaunja

Milk analyses: a comparison between a simple IR-instrument for use on farm level and available IR-methods

äºPrecision Livestock Farming â05

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K. Svennersten-Sjaunja

K. Svennersten-Sjaunja ¹Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, SE-753 23 Uppsala, Sweden Kerstin.Svennersten@huv.slu.se

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M. SjÃ¶gren

M. SjÃ¶gren ¹Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, SE-753 23 Uppsala, Sweden Kerstin.Svennersten@huv.slu.se
⁴Svensk Avel, Ãrnsro, SE-532 94 Skara, Sweden

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I. Andersson

I. Andersson ²Swedish Dairy Association, ScheelevÃ¤gen 18, SE-223 63 Lund, Sweden

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L-O. Sjaunja

L-O. Sjaunja ³MIRIS AB, Kungsgatan 109, SE-753 18 Uppsala, Sweden

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Page Range:: 139â147

DOI:: https://doi.org/10.3920/978-90-8686-548-2_017

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The aim of the present study was to test a new, mid infrared (MIR) instrument for milk analyses at farm level (FMA2001) by comparing the analytical accuracy with existing laboratory MIR instruments (FT-120 and Milkoscan5000). Milk samples were collected at five farms on two occasions at the monthly official milk-recording scheme. In total, 511 samples were analysed for fat, protein, and lactose with the IR instruments. In addition, on every farm, milk samples were randomly taken (in total 89 samples) and analysed with chemical reference methods. The presented overall accuracy was given as an estimation of the accuracy for the whole system, including errors of instrument, sampling, transportation, storage etc., compared against chemical reference methods. The accuracy given as coefficient of variation (CV%) was for fat 4.9%, 2.5% and 2.7%, and for protein 2.6%, 1.6% and 1.9% for the different instruments FMA2001, FT-120 and Milkoscan5000, respectively. CV% for lactose was 2.0% for FMA2001 and 1.9% for FT-120. It was concluded that the FMA2001 is a suitable instrument with satisfactory accuracy to be used for milk analysis at farm level for management purposes.

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Precision Livestock Farming â05

ISBN:: 9789086865482

åºçç¤¾:: Wageningen Academic

å°å·åºçæ¥æ:: 10 Oct 2005

Subjects
- Life Sciences
  - General
  - Animal & Veterinary

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Milk analyses: a comparison between a simple IR-instrument for use on farm level and available IR-methods

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