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All Journal HAYATI Journal of Biosciences MEDIA PETERNAKAN - Journal of Animal Science and Technology
. SURYANI
Department of Biochemistry, Faculty of Mathematics and Natural Sciences, Bogor agricultural University
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Bioflocculant producing-bacteria from tapioca waste water were characterized. Two bacterial isolates i.e. LT-5 and LT-6 isolates had high flocculation activity, with activity of 68.92 and 71.38% respectively. The flocculation activity of LT-5 isolate increased at pH 2.0-4.0 (acidic condition), however the activity of LT-6 increased at pH 6.0-8.0 (neutral). Addition of 0.05% of AlCl3 as cation was the most effective and had important role in flocculation activity. Based on the morphological prope . SURYANI; LAKSMI AMBARSARI; I MADE ARTIKA; HARTUTIK EKA SUSANTI
HAYATI Journal of Biosciences Vol. 18 No. 4 (2011): December 2011
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.18.4.193

Abstract

Bioflocculant producing-bacteria from tapioca waste water were characterized. Two bacterial isolates i.e. LT-5 and LT-6 isolates had high flocculation activity, with activity of 68.92 and 71.38% respectively. The flocculation activity of LT-5 isolate increased at pH 2.0-4.0 (acidic condition), however the activity of LT-6 increased at pH 6.0-8.0 (neutral). Addition of 0.05% of AlCl3 as cation was the most effective and had important role in flocculation activity. Based on the morphological properties, LT-5 isolate was identified as Chromobacterium violaceum and LT-6 isolate was identified as Citrobacter koseri.
Nutrient Digestibility and Performances of Frisian Holstein Calves Fed with Pennisetum purpureum and Inoculated with Buffalo’s Rumen Bacteria I Prihantoro; D Evvyernie; . Suryani; L Abdullah; T Toharmat
Media Peternakan Vol. 37 No. 3 (2014): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (505.215 KB) | DOI: 10.5398/medpet.2014.37.3.161

Abstract

Buffalo’s rumen bacteria (BRB) are potential in digesting fiber feed. BRB already adapted well with low quality forages and agricultural byproducts. The aim of this study was to determine the effect of buffalo’s rumen bacteria (BRB) consortium inoculated into preweaning Frisian Holstein calves on nutrient digestibility, physiological status, mineral uptake, and blood profile. This study used 14 isolates of bacteria isolated from rumen fluid of four local buffalos. The research units consisted of seven Frisian Holstein calves at two weeks old with the average body weight of 43.6±4.5 kg. Calves were inoculated with 20 mL of buffalo’s rumen bacteria isolates [4.56 x 109 cfu/mL] every morning for 10 weeks. The calves were divided into two groups i.e., three calves received bacterial inoculation and four calves without any inoculation. The variables which were analyzed in the preweaning and weaning period were feed intake, digestibility, average daily gain (ADG), feed conversion ratio (FCR), rumen fermentation characteristics, body weight, physiological status, blood profile, and mineral status. Data were analyzed statistically using t-test. The results showed that inoculation of buffalo’s rumen bacteria into Frisian Holstein calves effectively increased feed intake, characteristics of leukocytes and neutrophils, and cobalt (Co) uptake during the weaning period. Inoculation of rumen bacteria improved rumen pH during preweaning and weaning periods. Inoculation of rumen bacteria also had no negative effects on digestibility, feed conversion (FCR), average daily gain (ADG), and physiological status.Key words: buffalo rumen bacteria, digestibility, physiological status, blood profile, Pennisetum purpureum
Co-Authors Dwierra Evvyernie HARTUTIK EKA SUSANTI I MADE ARTIKA I Prihantoro L Abdullah LAKSMI AMBARSARI T Toharmat