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All Journal WARTAZOA Indonesian Bulletin of Animal and Veterinary Sciences Livestock and Animal Research Animal Production : Indonesian Journal of Animal Production Kalwedo Sains (KASA)
Ristianto Utomo
Lab. Hijauan Makanan Ternak dan Pastura, Fakultas Peternakan, Universitas Gadjah Mada, Jl. Fauna No 3 Kampus Bulaksumur UGM, Yogyakarta
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Veterinary

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A Review on Research Results of Beef Cattle Feed Utomo, Ristianto
Indonesian Bulletin of Animal and Veterinary Sciences Vol 14, No 3 (2004)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1116.832 KB) | DOI: 10.14334/wartazoa.v14i3.803

Abstract

Based on rumen degradation rate, concentrates are divided into : slow degraded energy feeds, fast degraded energy feeds, slow degraded protein supplements, and fast degraded protein supplements. This classification is important to synchronize the presence of nutrients in the rumen used to stimulate rumen microbes growth . Rumen microbes-can be used as protein supplements for the host . Protein content, digestibility, and biological value of rumen microbes are about 65%, 75-85%, and 80%, respectively . Rice straw as an agricultural by product has a low protein content of not more than 7%, low digestibility, thus in the digestive tract, in rumen, and particle changes in rumen require about 81 .67 hours, 62.69 hours, and 1 .62% per hours, respectively. Rice straw utilization as feed needs supplementation and quality and digestibility improvement in the form of physical, chemical, biological, or combined. The physical treatment aims at reducing particle size or cell swelling . Reducing particle size of roughage will increase the rate of passage in the rumen, increase consumption, decrease digestibility, and reduce milk fat, while sodium hydroxide treatment will increase digestibility up to 100% without nutrient increase, however it is dangerous to human life and a pollutant for the agriculture field. Rice straw treatment using ammonia increase its digestibility and its nutrient . The biological treatment was conducted to change rice straw structure by enzyme lignocellulase and increase protein content with microorganism. Basically, the concept of biological treatment is restricted composing, conservation, and predigesting to increase quality. Recently, many commercial products have been developed for rice straw biological treatment orienting at predigesting of cellulose. The application of physical, chemical, and or biological treatment for agricultural by product is as component for complete feed Key words: Rumen Microbes, supplementation, predigesting
Pengaruh Penambahan Gula Kelapa Pasta pada Ensilase Ikan Rucah Terhadap Kualitas Silase Rimbawanto, Efka Aris; Yusiati, Lies Mira; Baliarti, Endang; Utomo, Ristianto
Sains Peternakan: Jurnal Penelitian Ilmu Peternakan Vol 13, No 1 (2015): Sains Peternakan
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/sainspet.v13i1.4424

Abstract

The objective of this research was to analyze the effect of coconut sugar paste in naturally fermented trash fish ensilage on chemical change. Grinded trash fish (Pomadasys macullatus) was mixed with coconut sugar paste (0, 15, 30 and 45%/kg fresh trash fish) without inoculation in plastic bag. Anaerobe incubation was conducted at room temperature (29°±1°C). Chemical change (pH, lactic acid, ammonia, non-protein nitrogen, peroxide value and free fatty acid) was observed during fermentation period of 0, 4, 8, 12, 20 and 24 days. The experiment which had a completely randomized design to select the best amount of coconut sugar paste and fermentation period in trash fish ensilage. Fresh trash fish and fermentation product (trash fish silage) determined by the proximate analysis (dry matter, ash, crude protein and crude fat). Result indicated that the pH decreased remained constan at 4,4 after 16-day fermentation. Lactic acid, ammonia, non-protein nitrogen, peroxide value and free fatty acid during fermentation significantly increased due to different levels of coconut sugar paste and fe rmentation period. Conclusively, coconut sugar paste at the level of 15%/kg fresh trash fish was the best combination in natural fermentation with 16-day fermentation period and the product was potential protein source (45% DM) for animal feed. Key word: Trash fish, coconut sugar paste, silage, fermentation.
Effect of Condensed Tannin of Leucaena and Calliandra Leaves in Protein Trash Fish Silage on In vItro Ruminal Fermentation, Microbial Protein Synthesis and Digestibility Rimbawanto, Efka Aris; Yusiati, Lies Mira; Baliarti, Endang; Utomo, Ristianto
ANIMAL PRODUCTION Vol 17, No 2 (2015): May
Publisher : Universitas Jenderal Soedirman, Faculty of Animal Science, Purwokerto-Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (693.049 KB) | DOI: 10.20884/1.anprod.2015.17.2.505

Abstract

Two plants as condensed tannin (CT) sources were supplemented to protein trash fish silage (TFS) to observe their effect on in vitro ruminal fermentation product, micobial protein synthesis, and   digestibility. CT supplementation on protein trash fish silage was on control proportion (0), under optimum level (2.0%), at optimum level (4.0%), and above optimum level (6.0%) of g TFS); of protein precipitation of bovine serum albumin (BSA) with CT from L. leucocephala; and under optimum level (1.5%), at optimum level (3.0%) and above optimum level (4.5% of g TFS), BSA protein precipitation with CT from C. calothyrsus. The effect on degradation in ruminal fluid and ruminal fluid followed by incubation in HCl-pepsin was evaluated using a modified two-step in vitro method. The CT level of L. leucocephala and C. calothyrsus was 4% and 6%, respectively with protein precipitation BSA was 26.25 and 31.77 g BSA/g CT, respectively. CT supplementation to trash fish silage, ruminal fermentation product (NH3-N, C2, C3, and total VFAs) and digestibility (DM and OM) decreased (P<0.01) and increased (P<0.01) total CP digestibility (in HCl-pepsin). The difference was attributed to CT source without affecting ruminal microbial protein synthesis. CT of L. leucocephala was better in increasing total protein digestibility (70%) than that of C. calothyrsus  (15%). It indicated that CT of C. calothyrsus was less effective in protected TSF protein degradation in rumen compared to that of L. leucocephala.
Productivity and Nutrient Content of the Second Regrowth Alfalfa (Medicago Sativa L.) with Different Photoperiod and Dolomite Suwignyo, Bambang; Kurniawan, F.X. Dika; Suseno, Nilo; Utomo, Ristianto; Suhartanto, Bambang
ANIMAL PRODUCTION Vol. 22 No. 2 (2020)
Publisher : Faculty of Animal Science, Jenderal Soedirman University in associate with Animal Scientist Society of Indonesia (ISPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jap.2020.22.2.53

Abstract

The study was conducted to identify the effect of lighting duration and dolomite addition on the vegetative growth of alfalfa plants in second regrowth phase. The experiment was conducted in the greenhouse of the Laboratory of Forage and Pasture Science, Faculty of Animal Science, Universitas Gadjah Mada. It used a completely randomized design with 3x3-factorial using two factors and three replications. The first factor was lighting duration (C) with 3 levels (C0 = 12 hours, C1 = 14 hours, and C2 = 16 hours). The second factor was dolomite addition (D) with 3 levels (D0 = 0 ton/ha, D1 = 6 ton /ha, and D2 = 12 ton/ha). The results showed a significant effect so Duncan Multiple Range Test (DMRT) followed at 5% and 1% levels. The observed variables were plant height, the number of plant branches, the number of plant leaves, fresh forage production, and the chemical content of the plants in the form of dry matter (DM) and organic matter (OM). The addition of dolomite significantly affected the number of the plant branches, the number of plant leaves and the dry matter of the plants. A significant correlation was found between the two treatments and the number of leaves (C2D2) and a correlation was between the treatment and dry matter (C1D2).
Analysis Of Physical Quality And Chemical Content Of Corn Crop Silage With The Addition Of Sago And Tapioca Flour Additives As Ruminant Animal Feed Sairudy, Albertus; Astuty, Andriyani; Utomo, Ristianto
Kalwedo Sains (KASA) Vol 3 No 1 (2022): Kalwedo Sains (KASA), Maret 2022
Publisher : Program Studi Di Luar Kampus Utama Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/kasav3i1p40-54

Abstract

This study aims to find out the fission quality and chemical composition of corn crop silage with the addition of sago flour and tapioca as additives. This study includes three treatments, namely: (P0) corn crops 800 g without additives added, (P1) corn crops 800 g with the addition of 10% sago flour additives, and (P2) corn crops 800 g with the addition of 10% tapioca additives. Incubation time starts on days 7, 14, 21, and 28. The incubation time silage of days 7, 14, 21, and 28 was assessed for physical quality including color, smell, texture, and the presence of fungi using questionnaires filled out by five students as panelists. Silage incubation results of the 21st and 28 th days, in addition to being assessed for physical quality, also analyzed chemical composition including dry matter content (BK), organic matter (BO), coarse protein (PK), gauze fiber (SK), and NH3. Physical quality assessment data is analyzed descriptively while chemical composition data is analyzed statistically using randomized completely block desing (RCBD). If there is a difference in treatment, followed by Duncan's new multiple range test (DMRT). The results of the analysis of the physical quality of the silage of the corn plant as a whole are of good quality (yellowish-green color, sour smell, the tesctur is not mushy and still clearly visible, and there is no fungus). The results of a statistical analysis of the chemical composition of corn crop silage with the addition of 10% sago flour and tapioca showed a noticeable difference (P<0.05) to nh3 concentrations, organic matter content (BO), and coarse fiber (SK).
Co-Authors Astuty, Andriyani Bambang Suhartanto Bambang Suwignyo Djoko Soetrisno Efka Aris Rimbawanto Endang Baliarti Kurniawan, F.X. Dika Lies Mira Yusiati Nilo Suseno, Nilo Onesimus Yoku Sairudy, Albertus Siradz, Syamsul Arifin