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Aktivitas Antibiotik terhadap Biofilm Staphylococcus aureus Isolat Preputium Sapi Aceh Dewi, Maryulia; Darmawi, Darmawi; Nurliana, Nurliana; Karmil, T. Fadrial; Helmi, T. Zahrial; Fakhrurrazi, Fakhrurrazi; Erina, Erina; Abrar, Mahdi; AK, M. Daud; Admi, Masda
Jurnal Sain Veteriner Vol 38, No 1 (2020): April
Publisher : Fakultas Kedokteran Hewan Universitas Gadjah Mada bekerjasama dengan PB PDHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (468.862 KB) | DOI: 10.22146/jsv.57359

Abstract

Biofilm is one of parameters for determining pathogenic pathways of a bacterium. Bacterial virulence activities can be attenuated by antibiotics with inhibiting biofilm. The aim of this study was to examine the characteristics and activities of antibiotics against the biofilm of Stapylococcus aureus isolate which taken from Aceh cattle prepuce. The study was exploratory and experimental, using a Completely Randomized Design (RAL) factorial pattern using three types of antibiotics, three concentrations and replications. Antibiotics were tetracycline, oxytetracycline and phosphomycin with concentrations of 10%, 20% and 30% (mg/mL), respectively. Therefore, the aim of this study was to examine the characteristics and activities of antibiotics to the biofilm of Stapylococcus aureus from Aceh cattle prepuce isolate. U-bottom polystyrene 96 wells microplate and Nutrient Broth (NB) medium was used to biofilm bacterial while biofilm was stained on crystals violet 1%. Optical Density (OD) of biofilm were λ 595 nm. Data were analyzed by using Analysis of Variance (ANOVA). The results showed that the activity of Staphylococcus aureus was moderately positive, i.e 2,667cell/μL. It showed that antibiotics and concetrations have significant effect (P<0.05) to inhibit biofilm staphylococcus aureus. In additioon, tetracycline 30% (mg / mL) has the best ability to inhibit biofilms from 52,18% to 1,262 cell/μL. Based on that fact, it can be concluded that the virulence of Staphylococcus aureus was moderate positive to be false positive.
Histopathologic Features of Trachea and Lungs in Chickens with Chronic Respiratory Disease Annisa, Aiza; Darmawi, Darmawi; Etriwati, Etriwati; Balqis, Ummu; Salim, M. Nur; Nazaruddin, Nazaruddin; Aliza, Dwinna; Aisyah, Siti; Awaluddin, Awaluddin; Hasan, Denny Irmawati; Akmal, Muslim; Helmi, T. Zahrial; Asmilia, Nuzul
Jurnal Medika Veterinaria Vol 18, No 1 (2024): J.Med.Vet.
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.med.vet..v18i1.37429

Abstract

The purpose of this case study is to determine the changes that exist in chickens infected with Chronic Respiratory disease (CRD). A broiler male chicken aged 40 days was found dead in a chicken basket at Ulee Kareng chicken slaughterhouse in a state of feather loss and feces attached to cloaca, on January 6th, 2023. The chicken was brought to pathology laboratory of Faculty of Veterinary Medicine, Universitas Syiah Kuala for necropsy and organ collection. Organs associated with CRD cases were trachea and lungs and histopathological preparations were carried out, stained with Haematoxylin Eosin, and observed under a microscope. The results of histopathological examination showed hemorrhage and hyperplasia of the tracheal epithelium. Hemorrhage was caused by edema which causes increased vascular permeability and epithelial cell hyperplasia occured due to the body's response to infection or inflammation. In the lungs there was bleeding due to damage to the blood vessel wall which caused increased vascular permeability, so that fluid and blood plasma come out of the blood vessels. Fibrinogen then underwent polymerization which resulted in fibrinous thrombi. Congestion happened as the result of fluid accumulation in a location that occured in a passive process so the fluid failed to escape. Because of the accumulation of fluid (congestion), the blood supply to the lung tissue is interrupted, resulting in several points of necrosis in the lungs.