Influence of solid residue from alcoholic extraction of brown propolis on intake, digestibility, performance, carcass and meat characteristics of lambs in feedlot

C C Ítavo,T F De Souza Arco,G Sapaterro,L C Ítavo,K.L Ferelli,P Da Silva,C A Esteves,J Da Silva

doi:10.22358/jafs/109284/2019

Abstract

Influence of solid residue from alcoholic extraction of brown propolis on intake, digestibility, performance, carcass and meat characteristics of lambs in feedlot

Highlights

Ionophores can inhibit Gram-positive bacteria and their inclusion into ruminant diet decreases acetate:propionate ratio by the decrease in hydrogen use for methane production, and ammonia-N levels and lactate production; ionophores can increase protein availability, maintain rumen pH and decrease feed intake (Russell and Strobel, 1989)
The present study evaluated the effects of residue from extraction of brown propolis (RBP) inclusion into the diet on nutrients intake, productive performance, morphometric parameters of lambs and their carcasses, and meat fatty acid profile
The final body weight and daily weight gain were higher in animals fed diet supplemented with RBP regardless used RBP dose in comparison to control animals

Summary

Introduction

Ionophores can inhibit Gram-positive bacteria and their inclusion into ruminant diet decreases acetate:propionate ratio by the decrease in hydrogen use for methane production, and ammonia-N levels and lactate production; ionophores can increase protein availability, maintain rumen pH and decrease feed intake (Russell and Strobel, 1989). According to Mirzoeva et al (1997) and Gomes et al (2016), propolis exhibits bacteriostatic activity inhibiting Gram-positive and some Gramnegative bacteria by an apparent modification in the bioenergetic status of bacterial membrane and motility inhibition. This activity is primarily related to the flavonoid and phenolic acid content of propolis (Funari and Ferro, 2006). Propolis extract caused a reduction in the in vitro growth of Butyrivibrio fibrisolvens (de Aguiar et al, 2013), main cellulolytic rumen bacteria. Yoshimura et al (2018) examined the influence of diet supplementation with a propolis-based product on bacterial and protozoal populations in dairy cows and observed that the propolis-based product in diet tended to enhance Butyrivibrio fibrisolvens count but did not influence digestibility, short-chain fatty acid concentrations, pH and ammonia content in the rumen

Methods

Results

Conclusion