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

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.

Bibliographic Details

Main Authors:	Lima,Fabiola Espindola Ortega de, 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
Format:	Digital revista
Language:	English
Published:	UFBA - Universidade Federal da Bahia 2018
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-99402018000200178
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