Assessing the relationship between somatic cell count and the milk mid‐infrared spectrum in Chinese Holstein cows

Author:

Du Chao12,Ren Xiaoli13ORCID,Chu Chu1,Ding Lei1,Nan Liangkang1,Sabek Ahmed14,Hua Guohua1,Yan Lei3,Zhang Zhen3,Zhang Shujun1

Affiliation:

1. Key Laboratory of Agricultural Animal Genetics Breeding and Reproduction of Ministry of Education Huazhong Agricultural University Wuhan China

2. College of Animal Science and Veterinary Medicine Henan Institute of Science and Technology Xinxiang China

3. Henan Dairy Herd Improvement Center Zhengzhou China

4. Department of Veterinary Hygiene and Management Faculty of Veterinary Medicine Benha University Moshtohor Egypt

Abstract

AbstractBackgroundMilk produced by dairy cows is a complex combination of many components, but the effect of mastitis has only been investigated for a few of these components. Milk mid‐infrared (MIR) spectra can reflect the global composition of milk, and this study aimed to detect the relationships between milk MIR spectral wavenumbers and milk somatic cell count (SCC)—a sensitive biomarker for mastitis.MethodsPearson correlation analysis was used to calculate the correlation coefficient between somatic count score (SCS) and spectral wavenumbers. A general linear mixed model was applied to investigate the effect of three different classes of SCC (low, middle and high) on spectral wavenumbers.ResultsThe mean correlation coefficient between the ‘fingerprint region’ (wavenumbers 925–1582 cm–1) and the SCS was higher than that for other regions of the MIR spectrum, and the specific wavenumber with the strongest correlation with the SCS was within the ‘fingerprint region’. SCC class had a significant (p < 0.05) effect on 639 spectral wavenumbers. In particular, some spectral wavenumbers within the ‘fingerprint region’ were highly affected by the SCC class.LimitationThe data were collected from only one province in China, so the generalisability of the findings may be limited.ConclusionSCC had close relationships with milk spectral wavenumbers related to important milk components or chemical bonds.

Funder

Special Fund for Henan Agriculture Research System

Publisher

Wiley

Subject

General Veterinary,General Medicine

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Identification and quantification of goat milk adulteration using mid-infrared spectroscopy and chemometrics;Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy;2025-01

2. An adaptive functional regression framework for locally heterogeneous signals in spectroscopy;Journal of the Royal Statistical Society Series C: Applied Statistics;2024-08-14

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