Related Experiment Videos
Phenotypic relationships between longevity, type traits, and production in Chianina beef cattle
F Forabosco1, A F Groen, R Bozzi
1Associazione Nazionale Allevatori Bovini Italiani da Carne, 06070 S. Martino in Colle, Italy. forabosco@anabic.it
Journal of Animal Science
|June 26, 2004
Summary
Beef cow longevity is crucial for profitability. Muscularity traits and calving age significantly impact how long Chianina cows remain productive, while udder conformation does not influence longevity.
Area of Science:
- Animal Science
- Beef Cattle Genetics
- Reproductive Biology
Background:
- Beef cattle longevity is economically significant, impacting farmer costs and revenue.
- Understanding factors influencing productive life is key to sustainable beef production.
- Chianina cattle longevity requires investigation into type and production traits.
Purpose of the Study:
- To investigate the phenotypic relationship between type traits and longevity in Chianina beef cattle.
- To analyze the relationship between production traits and longevity.
- To assess the impact of voluntary culling on longevity.
Main Methods:
- Analysis of reproductive, productive, and type traits from 6,395 Chianina cows.
- Statistical analysis of 22 type traits and their effect on longevity.
- Evaluation of herd-year effects and herd size on culling risk.
Main Results:
- Muscularity traits were highly significant (P < 0.01) and had the largest effect on longevity.
- Cows calving before 35 months had lower culling probability; approximately one calf per year increased longevity.
- Straight-legged cows had a 59% higher replacement probability; udder conformation had no effect.
Conclusions:
- Herd-year effects and muscularity traits are the most important factors for Chianina cow longevity.
- Type traits, particularly muscularity, dimension, refinement, and leg structure, significantly influence productive lifespan.
- Management factors like calving age and calving interval play a role in beef cow longevity.