The effect of age of cows on variability in mastitis prevalence risk and its concomitant impacts on the successive daily milk yield

Gantner, Vesna (author), Jožef, Ivana (author), Popović, Vera (author), Solić, Dragan (author), Popović, Jovana (author), Potočnik, Klemen (author)

The purpose of this study is to determine the effect of age of cows on variability in mastitis prevalence risk and its concomitant impacts on their successive daily milk yield by analyzing test-day records of dairy cows collected in the period 2005–2022. The results obtained indicate a correlation between the age and breed of cows enrolled in the study and mastitis prevalence risk alongside its concomitant impacts on their successive daily milk yield. The findings demonstrate a progressive increase in mastitis prevalence risk with the advancing age of cows, notably more pronounced in the Holstein breed than in the Simmental breed. The Simmental cows exhibited a lower increase in daily milk yield, experiencing a substantial decrease in overall yields (namely milk, fat, and protein) in contrast to the Holstein cows. The primiparous cows of both breeds displayed the highest total increase in daily milk yield. This study underscores the significance of monitoring dairy herd health as a pivotal component of successful dairy herd management. Moreover, the daily lactose content was found a valuable and cost-effective indicator for ensuring the economically and environmentally sustainable operations of dairy farms.

• Language: English
• Keywords: milk yield, fat and protein yield, daily lactose content, mastitis prevalence risk, dairy cattle
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Publication status: Published
• Publication version: Version of Record
• Year: 2023
• Number of pages: Str. 170-174
• Numbering: Vol. 72, no. 4
• PID: 20.500.12556/RUL-154301-7b073b61-de95-c023-03d3-32dd1d2b8dd5
• UDC: 636.2
• ISSN on article: 2466-4774
• DOI: 10.2478/contagri-2023-0022
• COBISS.SI-ID: 183885827
• Publication date in RUL: 06.02.2024

Record is a part of a journal

• Title: Contemporary Agriculture
• Shortened title: Contemp. Agric.
• Publisher: Faculty of Agricultural
• ISSN: 2466-4774
• COBISS.SI-ID: 4270202

Licences

• License: CC BY-NC-ND 3.0, Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported
• Link: http://creativecommons.org/licenses/by-nc-nd/3.0/
• Description: You are free to reproduce and redistribute the material in any medium or format. You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material. You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Secondary language

• Language: Slovenian
• Keywords: govedo, krave, molznice, starost, mastitis, mlečnost