Modelling Extended Lactations in Polish Holstein–Friesian Cows

The objectives of this study were (1) to examine different shapes of lactation curves for milk, fat, protein and lactose yields and urea content in milk fitted by the Wilmink function using the test-day (TD) records and (2) to find the function that best describes test-day records beyond 305 days in...

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Bibliographic Details
Main Authors: Agnieszka Otwinowska-Mindur, Ewa Ptak, Joanna Makulska, Olga Jarnecka
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/11/8/2176