A Darmawan
Research Center for Chemistry, Indonesian Institute of Sciences, Kawasan PUSPIPTEK Serpong, Banten

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Acidifier alami air perasaan jeruk nipis (Citrus aurantiun) sebagai pengganti antibiotik growth promotor ayam broiler Hidayat, K; Wibowo, S; Sari, L A; Darmawan, A
Jurnal Ilmu Nutrisi dan Teknologi Pakan Vol 16, No 2 (2018): Jurnal Ilmu Nutrisi dan Teknologi Pakan
Publisher : Jurnal Ilmu Nutrisi dan Teknologi Pakan

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Abstract

ABSTRAKPenelitian ini bertujuan untuk mengevaluasi pemberian air jeruk nipis dalam air minum sebagai pengganti antibiotic growth promotor terhadap performa dan populasi mikroba usus halus ayam broiler. Ayam broiler yang digunakan dalam penelitian ini yaitu 90 ekor ayam broiler dipelihara dari umur 1 hari hingga umur 28 hari. Penelitian ini menggunakan rancangan acak lengkap dengan 3 perlakuan dan 3 ulangan. Perlakuan ini yaitu P0= Ransum + air minum tanpa perasan air jeruk nipis (kontrol), P1= Ransum + air minum dengan perasan air jeruk nipis hingga pH air minum menjadi 5, P2= Ransum + air minum dengan perasan air jeruk nipis hingga pH air minum menjadi 3. Peubah yang diamati dalam penelitian ini yaitu konsumsi pakan, pertambahan bobot badan, konversi pakan, populasi bakteri E. coli, populasi bakteri asam laktat, dan mortalitas. Hasil penelitian ini menunjukkan bahwa pemberian air perasan jeruk nipis dalam air minum tidak memberikan efek berbeda nyata pada pertambahan bobot badan, konsumsi ransum, konversi ransum, populasi E. coli, akan tetapi perlakuan memberikan efek berbeda nyata (P<0.05) pada populasi bakteri asam laktat yang terdapat pada digesta usus halus ayam broiler. Pemberian perasaan air jeruk nipis dapat meningkatkan efisiensi pakan sebesar 3,3 %.Kata kunci : Ayam broiler, acidifier, jeruk nipis, performa, E. coli, bakteri asam laktatABSTRACTThe purpose of this study was to evaluate the effect of lime juice in drinking water as antibiotic growth promoter substitute on broiler performance and intestine microbial population. This study used 90 broiler chickens that were reared up to 28 days. This experiment was designed as a completely randomized design with 3 treatments and 3 replications; P0= Diet + drinking water without lime juice (control treatment), P1= Diet + drinking water with lemon juice (pH=5), P2= Diet + drinking water with lime juice (pH =3). The results of this study showed that all treatments did not affect weight gain, feed consumption, feed conversion, E. coli population. The treatment of drinking water with lime juice at pH =3 significantly increased (P<0.05) lactic acid population. Utilization of lime juice in drinking water at pH 5 increase 3,3% of feed efficiency and reduce the mortality rate.Key words: lime juice, broiler perfomance, lactic acid bacteria
ISOLASI DAN IDENTIFIKASI SENYAWA FLAVON DARI EKSTRAK ETIL ASETAT BRUCEA JAVANICA Merrill Megawati, Megawati; Darmawan, A; Angelina, M; Fajriah, S; Hanafi, M; Lotulung, P D
Jurnal Kimia Terapan Indonesia (Indonesian Journal of Applied Chemistry) Vol 13, No 2 (2011)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4208.568 KB) | DOI: 10.14203/jkti.v13i2.138

Abstract

Buah Makasar (Brucea javanica Merrill)is a wild ornamental plant and one of the traditional medicine plants. Isolation andpurification of ethyl acetate extract of B.javanica using silica gel column chromatography with ethyl acetatem-hexane as a mobile phase gradually obtained a pure compound as yellow crystals. It was identified by using infrared spectrophotometer (IR), LC-MS (liquid chromatography mass spectrometer) and ID- and 2D-NMR (nuclear magnetic resonance), compound a identified as 6-hydroxy-2-(3,4,5-trihydroxyphenyl}-4H-chromen-4-one, a flavones compound with molecular formula Cl5HI006 and molecular weight of 287.18 m/z.Keywords: Brucea javanica Merrill, buah makasar, flavones,6-hydroxy-2-(3,4,5-trihydroxyphenyl)-4H-chromen-4-one
EGG PRODUCTION AND QUALITY OF MAGELANG DUCK FED DIETS CONTAINING DIFFERENT RATIO OF OMEGA 3 : OMEGA 6 AND ORGANIC ZN Darmawan, A; Wiryawan, K G; Sumiati, .
Media Peternakan Vol. 36 No. 3 (2013): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (382.138 KB) | DOI: 10.5398/medpet.2013.36.3.197

Abstract

The aims of this study were to determine the feeding effect of diets containing different ratio of ?-3 and ?-6 fatty acids and organic Zn on egg production and quality of Magelang duck. A total of 90 ducks of 20 weeks old were randomly divided into 18 experimental units by assigning a completely randomized design with 6 treatments and 3 replications. There were 6 dietary treatments, namely 1) ration without palm oil, fish oil and organic Zn with the ratio of ?-3 : ?-6 was 1: 5 (R0), 2) ration with the ratio of ?-3 : ?-6 was 1: 1.5 + 200 ppm organic Zn (R1), 3) ration with  the ratio of ?-3 : ?-6 was 1: 3 + 200 ppm organic Zn (R2), 4) ration with  the ratio of ?-3 : ?-6 was 1: 4.5 + 200 ppm organic Zn (R3), 5) ration with  the ratio of ?-3 : ?-6 was 1: 6 + 200 ppm organic Zn (R4), 6) ration with  the ratio of ?-3 : ?-6 was 1 : 7.5 + 200 ppm organic Zn  (R5). Observation was carried out for 9 wk. The results showed that the ration containing the ratio of ?-3 : ?-6 = 1 : 3 and organic Zn (R2) produced significantly (P<0.05) the highest egg production and the lowest egg production was resulted by the dietary treatment without oil and organic Zn. Ration containing the ratio of ?-3 : ?-6 = 1: 3 and organic Zn (R2) significantly (P<0.05) decreased feed conversion ratio to the lowest value and it was significantly different as compared to R0 and R5. It can be concluded that feeding diet containing ?-3 and ?-6 with the ratio of 1:3 + 200 ppm organic Zn improves egg production without decreasing egg quality.
Aplikasi Teknologi Nanopartikel Perak (AgNPs) dalam Air Minum dan Bentuk Kabut terhadap Kadar Amonia Ekskreta Broiler Hulu, Ones Putra; Sihombing, M; Saputro, R H; Darmawan, A; Herbani, Y
Jurnal Ilmu Nutrisi dan Teknologi Pakan Vol 17, No 2 (2019): Jurnal Ilmu Nutrisi dan Teknologi Pakan
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jintp.17.2.26-31

Abstract

The purpose this study was evaluate the utilization of nanoparticles silver (AgNPs) on performance and ammonia concentration in broiler excreta.  This study used a factorial completely randomized design with 3x2 treatments and 4 replicates.  First factor (AgNPs at drinking water) was P1 = 0 ppm, P2 = 2 ppm, and P3 = 3 ppm and the  second factor Q (AgNPs by misty) was Q1 = 0 ppm and Q2 = 4 ppm.  The variables measured were excreta ammonia content, feed consumption, body weight gain, feed conversion ratio, mortality, temperature and relative humidity.  The results  showed that there was no interaction between AgNPs in drinking water and AgNPs in  its mist form on ammonia content.  AgNPs 4 ppm by misty also affected reduce FCR and body weight gain at week 3, also increased FCR at fourth week.  AgNPs in drinking water affected (P < 0.05) amonia content.  AgNPs 2 ppm in drinking water reduce until 11% amonia content.  AgNPs by misty also reduced (P< 0.05) amonia content.  AgNPs 0 ppm and 4 ppm by misty not created comfort temperature and relative humidity for broiler chicks. It is concluded that the addition of silver nanoparticles reduce excreta ammonia levels of broiler chickens.