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Yunilas
Animal Production Study Program, Universitas Sumatera Utara, Padang Bulan, Medan 20155, Indonesia
Agriculture, Biological Sciences & Forestry Energy Environmental Science Social Sciences Veterinary

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Microbial Effects from Biogas Slurry Application on Growing Phase of Turi (Sesbania grandiflora) Nurzainah Ginting; Hasnudi; Yunilas; M.Adanan Purba
Jurnal Peternakan Integratif Vol. 7 No. 2 (2019): Jurnal Peternakan Integratif
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (406.508 KB) | DOI: 10.32734/jpi.v7i2.2135

Abstract

This research was conducted in Samosir Island, North Sumatera Province, Indonesiawhich has Inceptisol soil. As this type of soil is generally unfertile, since hundreds years ago,local people added ruminant faeces before planting. This research objective was to prove thatapplication of biogas slurry on growing phase of Turi (Sesbania grandiflora) plant improvedmicrobial population on soil thus plant quality. This research was conducted from May untilSeptember 2018. Research design was Completely Randomized Design (CRD) withtreatments slurry dosages which were P0: without slurry, P1: 10/ha/year and P2: 20/ha/year.Parameters were chemical composition of slurry, microbial type and population, plant height,total leaf, stem diameter, number of branch and leaf size. The results showed that P0 had nosignificant effect on every parameters while P1 and P2 improved microbial type andpopulation, plant height, total leaf, stem diameter, number of branch and leaf size (P <0.05).There was an increasing of microbial population in line with the increasing of slurry dosage.P2 contained the highest population of bacteria or fungal (F <0.05) compared to P0 or P1.
The Activity Of Cellulose Enzyme From Indigenous Bacteria "Bacillus Sp YLB1" As Bioactivator Yunilas; Lili Warly; Yetti Marli; Irsan Riyanto
Jurnal Peternakan Integratif Vol. 7 No. 2 (2019): Jurnal Peternakan Integratif
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (310.391 KB) | DOI: 10.32734/jpi.v7i2.2143

Abstract

This study aims to test the activity of cellulase enzyme (CMCase) fromindigenous bacteria "Bacillus Sp YLB1" as bioactivator of palm oil based feed. Thetreatment consists of various combinations of substart, namely: P1 = 80% palm leaves +10% palm kernel cake + 10% sludge; P2 = 60% palm leaves + 20% palm kernel cake +20% sludge and P3 = 60% palm leaves + 30% palm kernel cake+ 30% sludge. The parameters observed were cellulase enzyme activity (CMCase) onvarious combinations of palm oil waste and fermentation time. The results showed thatcellulase enzyme (CMCase) production of Bacillus sp YLB1 bacteria during fermentationfluctuated ie 0.143 Units / ml; 0.372 Units / ml; 0.588 Units / ml; 1.013 Units / ml; 0.906Units / ml; 1,065 Units / ml and 1,198 Units / ml.The activity of cellulase enzyme(CMCase) on substrate P1 is lower than P2 and P3. As conclutions that cellulase enzymeactivity of Bacillus sp YLB1 influenced by the combination of substrate and fermentationtime. The P3 fermented with Bacillus sp YLB1 for 7 days gave a more optimal result thanthe other treatments
Co-Authors Hasnudi Irsan Riyanto Lili Warly M.Adanan Purba Nurzainah Ginting Yetti Marli