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All Journal Jurnal Ilmu Ternak dan Veteriner Animal Production : Indonesian Journal of Animal Production Jurnal Pertanian Agros

Iwan Prihantoro

Departemen Ilmu Nutrisi dan Teknologi Pakan, Fakultas Peternakan Institut Pertanian Bogor

Author-ID : 347245

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Veterinary

Published : 6 Documents Claim Missing Document

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Articles

Ability of fiber bacteria isolated from buffalo rumen in digesting various sources of forage Prihantoro, Iwan; Toharmat, T; Evvyernie, D; ., Suryani; Abdullah, L
Indonesian Journal of Animal and Veterinary Sciences Vol 17, No 3 (2012)
Publisher : Indonesian Animal Sciences Society

Local buffalo rumen fluid is a source of fiber digesting bacteria. Such bacteria presumably are well adapted to feed stuffs derived from agricultural byproducts with low quality. The purposes of this study were: (1) to isolate the fiber-digesting bacteria from buffalo rumen fluid, (2) to determine the fiber digesting characteristics and adaptability of such bacteria, and (3) to characterize the bacterial diversity.Â Rumen fluids for the experiment were collected from buffaloes slaughtered at the Faculty of Animal Science, Bogor Agricultural University abattoir. Fiber-digesting bacteria were isolated using McDougall buffer supplemented with fibrous feed. A factorial experiment was conducted to study characteristics and adaptability of the bacteria using two factors: the type of bacteria and type of feed source of the fiber. Diversity among the bacteria was analyzed using the NTSys2.10 program.Results showed that nine bacterial isolates had a high adaptability to fiber feed based on CMCase. The highest CMCase activity bacteria for Pennisetum purpureum were A9 (11.36Â±1.70 unit/ml/h), A3 (11.22Â±0.60 unit/ml/h) and A42 (10.62Â±1.96 unit/ml/h). CMCase activity of fiber digesting bacteria from buffalo rumen fluid was not correlated with the number of bacteria in the culture. Based on genetic similarity, nine isolates were grouped into five types having similarityâ¥46%. Key Words: Buffalo Rumen Fluid, Fiber-Digesting Bacteria, Low Quality Forage

Productivity of duckweed (Lemna minor) as alternative forage feed for livestock in different light intensities Nopriani, Uti; Karti, PDMH; Prihantoro, Iwan
Indonesian Journal of Animal and Veterinary Sciences Vol 19, No 4 (2014)
Publisher : Indonesian Animal Sciences Society

Duckweed (Lemna minor) is a small aquatic plant that grow and float in water and spread extensively. Lemna minor is potential as a source of high quality forage. This study aimed to determine optimal light intensity on Lemna minor to generate maximum productivity. Parameters observed were physical-biological and chemical characteristics of the media (pH value, temperature, cover area, decreased of media volume, BOD, COD, nitrate, nitrite and phosphate), plant growth acceleration (number of shoots, leaf diameter and chlorophyll-a), biomass production, doubling time of cover area and the number of daughters. This study was done based on a completely randomized design with 4 levels of shading. While treatment was: without shading, shading 30%, shading 50% and shading 70% using paranet shade. Each treatment consisted of 4 replications. Result showed that the productivity of Lemna minor included the number of daughters, chlorophyll-a, biomass production, cover area, absorbed phosphate and doubling time the number of daughters reached the highest level without shading treatment (1007,21-2813,57 lux). The decrease of intensity of light, the increase the diameter of leaf. Decrease of media volume was positively correlated to size of cover area. Biomass production influenced by a wide doubling time of cover area and number of daughters. Key Words: Lemna minor, Light Intensity, Media, Productivity

Potency of fiber rumen bacterial isolates from local buffalo inoculated into Frisian Holstein calves during preweaning period Prihantoro, Iwan; Evvyernie, D; ., Suryani; Abdullah, L; Yunitasari, N.S; Sari, A.P; Khairunisa, D; Haziq, A; Rahayu, N; Toharmat, T
Indonesian Journal of Animal and Veterinary Sciences Vol 17, No 4 (2012)
Publisher : Indonesian Animal Sciences Society

Fiber-digesting bacteria are the main rumen bacteria that play an important role in digesting feed. These bacteria are adapted to low quality forage from agricultural byproduct. The aim of these study was to determine the potency of fiber-digesting bacteria consortium obtained from buffalo rumen inoculated to Frisian Holstein calves during preweaning on feed consumption, utilization, mineral uptake and physiological status. This study used 14 isolates of bacteria obtained from collection of Faculty of Animal Science, Bogor Agricultural University. The experimental unit consisted of six Frisian Holstein calves at two week old with the average body weight of 38.00 Â± 6.23 kg. Calves were inoculated by 20 ml of fiber-digesting rumen bacterial isolates [4.56 x 109 cfu/ml] every morning for four weeks. Experimental design used was based on a completly randomized design with three calves received the respective inoculation (treatment group) and three calves without any inoculation (control group). Data were analyzed statistically using t-test method with Î± = 0.05 and 0.01. The results showed that fiber-digesting bacteria (FDB) from rumen buffalo have adapted in the calves rumen since preweaning periode. Inoculation FDB increased the number of rumen bacteria, digestibility of protein and P uptake calves at eight weeks old. Increased feed intake, uptake of Mg and cobalt calves at 14 weeks old. Without causing any negative effects on ADG, physiological status and rumen fermentability. Key Words: Fiber-Digesting Bacteria, Nutrient Intake, Rumen Fermentability

Production and quality of Murdannia bracteata biomass as impact of magnesium foliar fertilizer Rahmawati, Tenti; Abdullah, Luki; Prihantoro, Iwan
Indonesian Journal of Animal and Veterinary Sciences Vol 20, No 3 (2015): SEPTEMBER 2015
Publisher : Indonesian Animal Sciences Society

Murdannia bracteata is one of potential forages for ruminant that has not been studied yet. This forage contents high mineral and it can be as fungtional feed. The aim of this study was to evaluate the growth and productivity, chlorophyll and minerals content of Murdannia bracteata caused by magnesium foliar application. The experiment was arranged in randomized complete design with five treatments and 4 replications. The application of magnesium level was arranged into: 0 ppm, 2000 ppm, 4000 ppm, 8000 ppm, and 12000 ppm. The study was conducted in a greenhouse, field laboratory of Agrostology, Faculty of Animal Science, Bogor Agricultural University. The result showed that growth, productivity, and chlorophyll content were not significantly (P>0.05) affected by increasing magnesium level. Increasing magnesium dossage resulted in decreasing calsium, potassium, and zink content (P<0,05), but not on phosphor and sodium (P>0,05). In conclusion, increasing magnesium dossage up to 12000 ppm did not significantly affect growth, productivity, and chlorophyll content. However, increasing magnesium level decreased calsium, potassium, and zink content. Key Words: Murdannia Bracteata, Magnesium, Productivity, Quality

Grazing Behavior and Itineraries of Kacang Goat with Different Coat Color under Semi Intensive Management Kiswanto, Slamet Heri; Baihaqi, Muhammad; Prihantoro, Iwan
ANIMAL PRODUCTION Vol 17, No 2 (2015): May
Publisher : Universitas Jenderal Soedirman, Faculty of Animal Science, Purwokerto-Indonesia

The objective of this research was to analyze the effect of coat color on behavior and itineraries of kacang goat during grazing time. This research used 9 females and 3 males kacang goat. Behavior observed by one zero sampling method and analyzed using t-Test at level 5%. The result indicated that ingestion and browsing of brown goat (30.91Â±2.87%; 8.75Â±3.10%) higher than black goat (28.57Â±2.69%; 6.07Â±4.78%), while black goat showed more locomotion (33.26Â±4.50%) than brown goat (29.70Â±4.63%). Grazing, panting, and resting behaviors, and distance traveled of black goat (22.56Â±2.63%; 4.48Â±4.02%; 2.34Â±2.97%; 483.48Â±133.16 m) were not different with brown goat (22.16Â±2.90%; 4.59Â±3.71%; 2.64Â±1.52%; 392.29Â±81.19 m). Result also Â indicated that goat showed more grazing than browsing with high preference in you ng grass than old grass, Â legume, and weed.

EKSPLORASI TUMBUHAN DI BAWAH NAUNGAN UBIKAYU SERTA POTENSINYA SEBAGAI HIJAUAN PAKAN Qomariah, Novia; Setiana, M Agus; Prihantoro, Iwan
Agros Journal of Agriculture Science Vol 16, No 1: Edisi Januari 2014
Publisher : Faculty of Agriculture, Janabadra University

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Pemanfaatan hijauan pakan ternak di antara Ubikayu belum optimal. Padahal potensinya sangat besar. Tujuan penelitian: mengeksplorasi dan mengidentifikasikan jenis hijauan pakan di bawah naungan ubikayu dan potensinya sebagai hijauan pakan. Penelitian berlangsung Maret 2014 di Komplek IPB Sinar Sari Dramaga. Metode penelitian: menetapkan area ubikayu sebagai perlakuan, yaitu ubikayu yang ditanam terpisah dengan tanaman lain (monokultur) dan yang ditanam di antara tanaman hortikultura dan palawija (polikultur). Selanjutnya diamati dan diambil sampel hijauan pakan di kedua lokasi lalu dibuat herbarium dan diidentifikasi jenisnya. Hasil: hijauan pakan yang tumbuh diantara tanaman Ubikayu monokultur lebih beragam dibandingkan dengan polikultur. Jenis-jenis hijauan pakan ternak yang tumbuh pada tanaman Ubikayu monokultur adalah Echinochloa colona, Setaria barbata, Famili Juncaceae, Cyperus sp., Paspalum conjugatum, Cynodon dactylon, Stenotaphrum secundatum, Axonophus compressus (Swartz) P. Beauv, Eleusine indica dan Panicum maximum. Jenis-jenis hijauan pakan ternak yang tumbuh pada tanaman Ubikayu polikultur adalah Echinochloa colona, Setaria barbata, Famili Juncaceae, Cyperus sp., Stenotaphrum secundatum, Eleusine indica dan Leucaena leucephala.

Co-Authors A Haziq A.P Sari D Khairunisa Dwierra Evvyernie L Abdullah Luki Abdullah M. Baihaqi N Rahayu N.S Yunitasari PDMH Karti Qomariah, Novia Setiana, M Agus Slamet Heri Kiswanto, Slamet Heri Suryani . T Toharmat Tenti Rahmawati, Tenti Uti Nopriani

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