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All Journal Jurnal Ilmu Ternak Veteriner
Andi Saenab
Bogor Agricultural University
Veterinary

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Manipulation of rumen fermentation by bioindustrial products of cashew nut shell (Anacardiumoccidentale) to reduce methane and enhance other products Andi Saenab; Wiryawan KG; Retnani Y; Elizabeth Wina
Jurnal Ilmu Ternak dan Veteriner Vol 23, No 2 (2018): JUNE 2018
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (350.604 KB) | DOI: 10.14334/jitv.v23i2.1821

Abstract

One of the strategies to reduce methane produced by ruminants is by the application of feed additive from plant materials. One of the potential plants is cashew plant especially its shell. The cashew nut shell can be processed to become 3 bioindustrial products; ie biofat, biochar, biosmoke. The aim of this research was to evaluate the effectivity of different levels of biofat, biochar and biosmoke against methane and other fermented products.This experiment was arranged in block randomised design. The treatments were: Control (substrate=S), Biofat: S+0.25 µLmL-1, S+0.5 µLmL-1, S+0.75 µLmL-1; Biochar: S+0.1 mgmL-1, S+0.2 mgmL-1, S+0.3 mgmL-1; Biosmoke: S + 2.5 µLmL-1, S+5.0 µLmL-1, S + level7.5 µLmL-1. Each treatment was done in duplicates and the in vitro experiment was repeated 4 times. The measured variables were: total gas production, methane production, (dry matter, organic matter, NDF) degradability, ammonia concentration (NH3) and partial VFA concentration. The results showed that biofat, biochar and biosmoke reduced methane productionas much as  43.88%, 24.21%, 37.88%  at the highest level of inclusion, respectively. NH3 slightly increased by biochar and biosmoke addition compared to control. Molar proportion of acetic acid decreased and propionic acid increased by addition of cashew nut shell bioindustrial products compared to control. Organik matter degradability decreased significantly with biofat and biosmoke addition. Different mechanisms of biofat, biochar and biosmoke were proposed in affecting rumen fermentation. It can be concluded that each bioindustrial product of cashew nut shell (biofat, biochar and biosmoke) can be utilised as feed additive to reduce methane and increase propionic acid in the rumen fermentation.
Synergistic Effect of Biofat and Biochar of Cashew Nutshell on Mitigate Methane in the Rumen Andi Saenab; Komang G Wiryawan; Y Retnani; Elizabeth Wina
Jurnal Ilmu Ternak dan Veteriner Vol 25, No 3 (2020): SEPTEMBER 2020
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14334/jitv.v25i3.2475

Abstract

The study aimed to evaluate the effectiveness of a combination of biofat with biochar or biosmoke (bioindustrial products of cashew nut shells) at the best level as feed additive in reducing methane production and improving in vitro rumen fermentation. This experiment had two series of combination and each used a randomized block design with 6 treatments and 4 replications. A series of biofat (BF) and biochar (BC) combination were added each to substrate as followed BFBC1 = 0: 100%; BFBC2 = 25:75%; BFBC3 = 50:50%; BFBC4 = 75:25%; BFBC5 = 100: 0%. While, a series of biofat (BF) and biosmoke (BS) combination as followed BFBS1 = 0: 100%; BFBS2 = 25:75%; BFBS3 = 50:50%; BFBS4 = 75:25%; BFBS5 = 100: 0%. Both series used a control treatment which contained only substrate. The in vitro experiment was repeated 4 times and each treatment was done in duplicates. The measured variables were: total gas and CH4 productions, dry matter, organic matter, NDF degradability, NH3 and partial VFA concentrations. The results showed that the combination of biofat and biochar levels resulted in a significant decrease (P
Co-Authors Elizabeth Wina Elizabeth Wina I Komang Gede Wiryawan Retnani Y Wiryawan KG Y Retnani