Impact of linear-type traits measured at first lactation on the productive life of Holstein cows
The objective of this study was to identify how linear-type traits impact the culling risk and which traits are most associated to productive life of Holstein cows. Linear classification and test-day milk yield data of 34,653 primiparous cows obtained from the database of Associação Paranaense de Criadores de Bovinos da Raça Holandesa were used. Survival analysis was performed by PHREG procedure of SAS/STAT 9.4 using a Cox regression model. The model considered herd and year of the linear classification [...]
Authors
- Laila Talarico Dias (ORCID: https://orcid.org/0000-0002-8888-8993)
- Altair Antônio Valloto (ORCID: https://orcid.org/0000-0001-8956-0685)
- Rodrigo de Almeida Teixeira (ORCID: https://orcid.org/0000-0002-5213-6722)
- Lorena Carla Gomes Vernaschi (ORCID: https://orcid.org/0000-0001-7504-3759)
- Lenira El Faro (ORCID: https://orcid.org/0000-0002-1508-4097)
Publication Details
- Journal
- Revista Brasileira de Zootecnia
- Published
- 2025-01-01
- DOI
- https://doi.org/10.37496/rbz5420240099
- Primary Topic
- Genetic and phenotypic traits in livestock
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior