Glicerina bruta como alimento energético para vacas de leite

Ozana de Fátima Zacaroni, Cristielle Nunes Souto

Resumo


A glicerina bruta é um resíduo oriundo da produção de biodiesel. Com o aumento da demanda por biodiesel nos últimos anos, houve também um aumento na produção de glicerina, um co-produto que não é utilizado pelas indústrias. Assim, novas alternativas podem ser viáveis, como o uso na alimentação de vacas leiteiras. O uso da glicerina na dieta dos animais demonstra ser uma alternativa viável no que diz respeito aos aspectos nutricionais e econômicos. Nosso objetivo nesta revisão foi abordar a utilização da glicerina em dietas de vacas leiteiras e seus possíveis efeitos sobre a produção de leite. Em vários estudos, é possível observar que a glicerina bruta pode ser incluída na dieta de ruminantes sem causar efeitos negativos sobre o metabolismo, fermentação ruminal e produção de leite. Estudos sobre os efeitos deletérios da inclusão de glicerina em bruto com alto teor de metanol na dieta de vacas leiteiras devem ser realizados.


Palavras-chave


glicerol, metanol, aditivos sensoriais na alimentação animal.

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Referências


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DOI: https://doi.org/10.5965/223811711832019404

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Revista de Ciências Agroveterinárias (Rev. Ciênc. Agrovet.), Lages, SC, Brasil        ISSN 2238-1171