Rudy Sutrisna
Jurusan Peternakan Fakultas Pertanian Universitas Lampung

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Journal : Jurnal Penelitian Pertanian Terapan

Pengaruh pH terhadap Produksi Antibakteri oleh Bakteri Asam Laktat dari Usus Itik Rudy Sutrisna; Christina Nugroho Ekowati; Edelina Sinaga Sinaga
Jurnal Penelitian Pertanian Terapan Vol 15 No 3 (2015)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (225.455 KB) | DOI: 10.25181/jppt.v15i3.135

Abstract

This study aimed to determine the effect of pH on the production of antibacterial by lactic acid bacteria. This study uses a completely randomized design factorial 3X 5 (3 X 5 treatment of bacterial isolates pH) with three replications. The first factor consisted of pH 4, pH 5, pH 6, pH 7, pH 8, and the second factor that isolates B2, B7, B8, whereas the parameters consists of a clear zone. The amount of production is determined by the size of the diameter of antibacterial inhibition zone against Salmonella sp. Differences in the production of antibacterial determined based on the results of analysis of variance. The treatment significantly further test BNT at 5% level. The results showed that the effect of media pH test based on the potential for the production of antibacterial effect. The diameter of the largest clear zone produced by B7 isolates at pH 6 was 17.2 mm, 17.1 mm B8 and B2 at pH 7 at 16.7 mm. The smallest diameter of the clear zone produced by B8 at pH 4 was 15.1 mm, B2 at pH 6 there is a clear zone of 12.7 mm and isolate B7 at pH 5 of 11.5 mm Keywords: Antibacterial, Lactic Acid Bacteria, pH, Salmonella sp, Clear zone
Isolat Bakteri Asam Laktat Sebagai Probiotik dengan Vaksinasi AI dan ND dalam Pembentukan Titer Antibodi Dan Bobot Badan Ayam Jantan Tipe Medium Rudy Sutrisna
Jurnal Penelitian Pertanian Terapan Vol 14 No 2 (2014)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (149.176 KB) | DOI: 10.25181/jppt.v14i2.150

Abstract

Isolates of Lactic Acid Bacteria isolates assembled into a mixture of LAB as probiotics . LAB probiotic drops introduced through the mouth with the aim of suppressing pathogens and is expected to improve the health status of rooster type of medium . Isolates in the digestive tract will undergo adaptation by temperature , acidity and pH changes in the gut . The health status of the chicken can be expressed as growth to form the body weight , and the growth of LAB . In addition , AI and ND vaccination in healthy chickens conditions will produce antibodies to both . The success of vaccination can be evaluated from the results of the formation of chicken blood serum titre of research . Analysis of descriptive data on the dynamics of the growth of LAB , the formation of antibody titer and body weight gain 24-31 day old chickens . Based on the results of this study revealed that isolates of LAB can be used simultaneously in bercoccidiostat feed . LAB isolates may develop in the digestive tract rooster medium type as probiotics. The dynamics of the growth of a population produces a mixture of isolates of LAB isolates (mixture of B1, B3, B4, B5 as probiotics) in the highest reaches of the ilium and jejunum 14.00 x 10-6 13.5 x 10-6 CFU/ml. Test isolates viability of probiotic candidates in all isolates produced distilled water medium can live up to 72 hours of incubation . In addition, there is a synergy results in the formation of antibody titers ND uniform T3 treatment. T3 treatment is given probiotics 2x chicken every week for 3 weeks . In AI vaccination resulted in antibody titers are not uniform. Body weight gain reached the age of 24-31 days in a row 75.83 g, 76.54 g, 81.58 g, 87.04 g. Weight age of 31 days the average value obtained successively from the highest 329.16 g, 328.54 g, 325.54 g and 324.08 g lowest . Keywords; isolates LAB, probiotics, antibody titers, rooster layer medium type.
Pengaruh Beberapa Tingkat Serat Kasar dalam Ransum Terhadap Pekembangan Organ Dalam Itik Jantan Rudy Sutrisna
Jurnal Penelitian Pertanian Terapan Vol 12 No 1 (2012)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (51.08 KB) | DOI: 10.25181/jppt.v12i1.191

Abstract

This research was conducted to determine the effect of crude fiber level in rations of gizard weight, length and weight of small intestine, caecum, colon drake. Research using a completely randomized design consisting of four treatment levels of crude fiber (5, 10, 15, and 20%) and repeated four times. Data analysis of variance test results and continue testing the average value with Duncan Multiple Range Test. Ducks 3 weeks old experiment as much as 64 tail is divided into four treatments and each treatment consisted of four ducks. All treatments formulated rations containing protein (16%) and ME (2600 kcal/kg) is the same. The main source of crude fiber in the diet is fine bran. The results showed significantly different levels of crude fiber (P <0.05) to the length of small intestine drake. Keywords: Ducks male, Fiber, Carcas, Visceral Organ.