1Hanwoo Research Institute, National Institute of Animal Science, RDA, Pyeongchang, 25340, Korea
2Department of Animal Science, Kangwon National University, Chunchoen, 24341, Korea
*Corresponding Author: B.K. Park, Department of Animal Science, Kangwon National University, Chunchoen, 24341, Korea, Email: animalpark@kangwon.ac.kr
Online published on 11 October, 2024.
Methane reduction technology has not yet been put into practical use because of problems such as reduced digestibility, increased costs, additives remaining and microbial adaptations. The objectives of this study were to evaluate the effects of allicin and illite supplementation on ruminal methane production, growth performance and carcass characteristics of the Hanwoo steers.
For the in vitro experiment, 3 Hanwoo cows equipped with rumen fistula were used. The 28 Hanwoo steers were randomly assigned to one of the four dietary groups: control (CON), T1 (1.0% illite), T2 (0.1% allicin), or T3 (1.0% illite and 0.1% allicin). All data were analyzed using the generalized linear model procedure.
The methane production was rapidly increased for all the treatments after 8 h, but decreased compared to the control after 24 h (P<0.05) of incubation. There was no difference in the growth performance and carcass characteristics of steers among the treatments. Thus, allicin 0.1% and/or illite 1.0% have the potential to be used as natural feed additives to reduce methane production.
Allicin, Growth performance, Hanwoo steers, Illite, Methane
