Inclusion of copaiba oil (Copaifera sp.) as additive in supplements for cattle on pasture

• Autor(a) principal: Lima,Fabiola Espindola Ortega de
• Data de Publicação: 2018
• Outros Autores: Goes,Rafael Henrique de Tonissi e Buschinelli de, Gandra,Jefferson Rodrigues, Penha,Diego dos Santos, Oliveira,Raquel Tenório de, Gressler,Maria Gizelma de Menezes, Silva,Thaiano Iranildo de Sousa, Silva,Nayara Gonçalves
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Brasileira de Saúde e Produção Animal
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402018000200178
• topic: cattle; copaiba resin; ruminal additives; supplementation

SUMMARY This study analyzed the effect of including copaiba oil as an additive for cattle supplemented on pasture, during the dry season. Four crossbred steers, castrated, with 245 ± 25 kg, aged about 18 months, fitted with permanent rumen cannula; were randomly assigned to a 4×4 Latin square. All animals were housed in individual paddocks (0.3 ha), uniformly covered with Brachiaria brizantha cv Marandu, with through and drinking fountain; and were given a concentrate at 500g/100 kg BW containing 380 g/kg crude protein (%DM). The copaiba oil was added to the supplement as a spray, in the proportions of 0, 0.5; 1.0 and 1.5 g/kg DM intake. Spraying supplementation was performed daily at the time of supply of the supplement. Data of intake and digestibility of nutrients, ruminal pH; ruminal ammonia nitrogen, and microbial protein synthesis were tested by analysis of variance and polynomial regression, adopting a significance level of 5%. The inclusion of copaiba oil quadratically affected total dry matter intake (P=0.030) and CP digestibility (P=0.043), without altering ruminal metabolism (P>0.05) and microbial protein synthesis (P>0.05) of the animals kept on pasture.