Reducing the carbon footprint of the milk and the weaned beef calf using a beef-on-dairy system.
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Livestock systems face increasing pressure to reduce greenhouse gas (GHG) emissions, particularly methane from enteric fermentation and manure. Global beef demand is projected to reach 84 million tons by the next decade (FAO, 2025), intensifying the need for more sustainable production models. Dairy systems are also criticized for low-value male calves and welfare concerns. Integrated co-production systems, such as beef-on-dairy, represent a viable strategy to mitigate these issues by producing both milk and high-value crossbred calves for beef within a single system. The use of beef semen in dairy cows allows a partial redistribution of the carbon footprint (CF) between milk and meat (Laca et al., 2023), increasing resource- -use effi ciency and reducing emissions intensity per product while addressing dairy ethical concerns. This study aimed to model the CF associated with milk and meat production in a Brazilian beef-on-dairy system.
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Bem-estar animal, Sustentabilidade, Pegada de carbono, Bovino, Bem-Estar, Gado Leiteiro