ORIGINAL PAPER
Effect of microbial growth precursor supplementation
on chemical composition and fermentation characteristics
of palm stem pith silage
1
Universitas Islam Negeri Sultan Syarif Kasim Riau, Faculty of Agriculture and Animal Sciences, Department of Animal Science,
H.R. Soebrantas street KM 15.5 Panam, Pekanbaru, Indonesia
2
Research Center for Animal Husbandry, National Research and Innovation Agency (BRIN), Jl. Raya Jakarta Bogor KM 46, Cibinong, Bogor 16911, Indonesia
3
Andalas University, Faculty of Animal Husbandry, Department of Animal Nutrition and Feed Technology,
Jl. Limau Manis, Padang 25163, West Sumatra, Indonesia
Publication date: 2024-09-03
Corresponding author
D. Febrina
Universitas Islam Negeri Sultan Syarif Kasim Riau, Faculty of Agriculture and Animal Sciences, Department of Animal Science, H.R. Soebrantas street KM 15.5 Panam, Pekanbaru, Indonesia
Universitas Islam Negeri Sultan Syarif Kasim Riau, Faculty of Agriculture and Animal Sciences, Department of Animal Science, H.R. Soebrantas street KM 15.5 Panam, Pekanbaru, Indonesia
KEYWORDS
TOPICS
ABSTRACT
This study investigated the impact of precursor supplementation
and incubation time on the quality of palm stem pith silage (nutrient content, in vitro
digestibility, and rumen fermentability). A factorial complete randomised design
was applied, and the first factor included precursor supplements (D1 – empty
bunch ash filtrate, D2 – chicken faeces + urea, D3 – effective microorganism +
molasses + urea), while the second factor was incubation periods (B1 – 7 days,
B2 – 14 days, B3 – 21 days). Each treatment was replicated 3 times, resulting in
27 experimental units. The results revealed significant main effects of precursor
supplementation, incubation time and their interaction on various silage
parameters. In particular, a clear interaction (P < 0.01) was observed between
precursor supplementation and duration of incubation, indicating significant
synergistic effects on nutrient content (dry matter, organic matter, crude protein,
crude fibre, extract ether and nitrogen-free extract), digestibility (organic matter
and dry matter) and rumen fermentability (NH3 concentration). Specifically, the
combination of effective microorganism + molasses + urea supplementation,
with a 14-day incubation period, emerged as the most effective strategy for
enhancing silage quality. These findings highlight the crucial role of considering
treatment interaction factors in optimising silage production processes.
CONFLICT OF INTEREST
The Authors declare that there is no conflict of interest.
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