Details

Autor(en) / Beteiligte

• Jayanegara, A
• Anzhany, D
• Despal, D

Titel

Maggot oil as a feed supplement for reducing methanogenesis of rumen microbial culture in vitro

Ist Teil von

• IOP conference series. Materials Science and Engineering, 2021-03, Vol.1098 (4), p.42100

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2021

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Abstract Hermetia illucens larvae or known as maggot contains considerable amount of oil in its body. This experiment aimed to evaluate the use of maggot oil as a feed supplement for reducing methanogenesis of rumen microbial culture in vitro. The oil was supplemented into a feed substrate that consisted of forage: concentrate mixture (3:2 w/w). Supplementation of the oil was performed at different levels, i.e., 0, 1, 2, 3, 4 and 5% from substrate dry matter. All incubation bottles were tightly closed and incubated for 24 h in a water bath that maintained at 39oC. Results revealed that maggot oil at 4 and 5% supplementation level was able to reduce methane emission by 20.7 and 26.9% (P<0.05) in comparison to control, respectively. However, its supplementation at 3% or lower did not alter the methane emission. The organic matter digestibility parameter was linearly reduced with increasing level of maggot oil supplementation (P<0.05), but volatile fatty acid concentration was not affected. In contrast to our expectation, maggot oil at 3 to 5% increased log protozoa population and ammonia concentration than those of control (P<0.05). In conclusion, maggot oil may serve as a promising supplement for mitigating ruminal methanogenesis and the effect is dose-dependent.