The Effect of Yerba Mate (Ilex Paraguariensis) Supplementation on Nutrient Degradability in Dairy Cows: An In sacco and In vitro Study
Ellen Hartemink, Daniela Giorgio, Ravneet Kaur, Adriana Di Trana, Pietro Celi
Asian-Australasian Journal of Animal Sciences | ASIAN-AUSTRALASIAN ASSOC ANIMAL PRODUCTION SOC | Published : 2015
This study was carried out to investigate the effects of Yerba Mate (YM) supplementation on nutrients' degradation, in vitro dry matter disappearance, gas production and rumen ammonia concentration. Three rumen-fistulated Holstein Friesian cows were used for the in situ incubations and provided rumen liquor for in vitro incubations. The inclusion of YM in a control diet (pasture+pellets) affected some in sacco degradation parameters. YM supplementation decreased the effective degradability and degradation rate of pasture crude protein (CP), and it seems to slow down the degradation of pasture neutral detergent fiber. A significant increase of degradation of pasture acid detergent fiber (ADF)..View full abstract
This study was supported by the University of Sydney. We are grateful to Ajantha Horadagoga for her assistance in the laboratory analisys and to Paul Dobbelaar for the critical evaluation of the manuscript.