| Autor: |
Z.M. Kowalski, M. Sabatowicz, R.J. Van Saun, W. Młocek, W. Jagusiak, M. Spanghero, C.D. Dechow |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Journal of Dairy Science, Vol 106, Iss 12, Pp 9532-9551 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
0022-0302 |
| DOI: |
10.3168/jds.2022-23081 |
| Popis: |
ABSTRACT: Study aims were to investigate associations of hyperketolactia (HYKL) status of Holstein dairy cows between 6 and 60 d in milk (DIM), defined by milk acetone (mACE) and β-hydroxybutyrate (mBHB) content, with daily milk yield and composition. Milk samples (∼5.0 million) were collected over a 5-yr period (2014–2019) within the milk recording system in Poland. Concentrations of mACE and mBHB determined by Fourier-transform infrared spectroscopy were used to categorize samples into 4 ketolactia groups. Based on threshold values of ≥0.15 mmol/L mACE and ≥0.10 mmol/L mBHB, ketolactia groups were normoketolactia (NKL; mACE |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
