Advances in Animal and Veterinary Sciences

Research Article
Adv. Anim. Vet. Sci. 9(7): 971-977
Http://dx.doi.org/10.17582/journal.aavs/2021/9.7.971.977
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Nurhaita1, Nur Hidayah2*

1Animal Science Program, Agricultural and Animal Science Faculty, Bengkulu Muhammadiyah University, Kampung Bali, Bengkulu-38119, Indonesia; 2Animal Science Program, Agricultural Faculty, Tidar University, Potrobangsan, North Magelang, Central Java-56116, Indonesia.

Abstract | Tea leaves are types of plant leaves with the potential to be used as an antiprotozoal to increase livestock production. Therefore, this research aimed to evaluate the effect of tea leaves powder supplementation on fermented oil palm fronds (FOPF) on fermentation characteristics, rumen microbial profile, and methane production in vitro. Randomized block design with four treatments were used in this research. Treatments were tea leaves powder supplementation at 0, 2, 4, and 6% and four groups as replications. The observed variables were fermentation characteristics, rumen microbial profile, and methane production in vitro. The results showed that at 2% supplementation, the substrate had the lowest pH value. Meanwhile, at 4-6%, the supplement decreased NH3, total VFA, the proportion of propionate, DMD, OMD, protozoa population, and increased A:P ratio. However, there was no effect on bacteria population and methane production. In conclusion, supplementation of tea leaves powder at 2% on fermented oil palm fronds was did not influence fermentation characteristics, rumen microbial profile, and methane production in vitro. The tea can be used in ration to optimize the utilization of oil palm fronds.

Keywords | Fermentation characteristics, Fermented palm oil fronds, Methane production, Rumen microbial profile, Tea leaves powder