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primary topic: Determinants Influencing Calving to Service Interval in Danish Holstein Cows

Determinants Influencing Calving to Service Interval in Danish Holstein Cows
type: AcademicArticle
type: Article
abstract: The calving-to-first-service interval is crucial for dairy herd productivity. However, factors influencing this reproductive parameter remain understudied in modern dairy systems. The present study aimed to investigate the determinants of the calving-to-first-service interval in Danish Holstein cows, focusing on parity, age at first insemination, age at first calving, gestation length, gender of the born calf, and calving season. Data from 699 cows, managed on a single farm in Southwest Denmark, were collected and analyzed to identify risk factors associated with the calving-to-first-service interval. The mean calving-to-the-first-service interval was 87.6 ± 23.7 days. The present results indicated that parity, age at first calving, and calving season are key modifiable factors that affected the calving-to-first-service interval of the investigated Danish Holstein cows. The final multivariate linear regression model, which explained 13.7% of the variation in the calving-to-first-service interval, identified parity, age at first calving, and the gender of the born calf as significant risk factors for the interval. Parity and age at first calving were negatively related to the calving-to-first-service interval. Male calves were linked to an increased calving-to-first-service interval. Gestation length and age at the first artificial insemination indicated no association with the calving-to-first-service interval. Focusing on key factors such as parity, age at first calving, and gender of the born calf can improve reproductive success and profitability in dairy herds.
date: 2025-09-30
volume: 15
issue: 3
is part of: World’s Veterinary Journal
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository
has document: Determinants Influencing Calving to Service Interval in Danish Holstein Cows (Text)
has version: Determinants Influencing Calving to Service Interval in Danish Holstein Cows (Text)
has published: Determinants Influencing Calving to Service Interval in Danish Holstein Cows (Text)
subject: SF Animal culture

Determinants Influencing Calving to Service Interval in Danish Holstein Cows (Text)
type: Document
has file: WVJ15(3)782-789,2025 (1).pdf
has part: WVJ15(3)782-789,2025 (1).pdf

Scienceline Publication
type: Organization

World’s Veterinary Journal
type: Collection
issn: 23224568

Bui Van Dung
type: Person
given name: Bui Van
family name: Dung

Le Thi Le Thuong
type: Person
given name: Le Thi Le
family name: Thuong

Nguyen Hoai Nam
type: Person
given name: Nguyen
family name: Hoai Nam

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primary topic: Determinants Influencing Calving to Service Interval in Danish Holstein Cows

SF Animal culture
type: Concept