Rumen Fermentation, Blood Metabolites, and Performance of Sheep Fed Tropical Browse Plants

The in vitro study was designed to evaluate total gas production, dry matter degradability (DMD), and VFA profile; while in vivo study was designed to evaluate nutrient intakes, blood metabolites, and performance of sheep fed native grass mixed with Calliandra calothyrrus (CC), Leucaena leucochepala (LL), Moringa oleifera (MO), Gliricidea sepium (GS), and Artocarpus heterophyllus (AH). The best three from the in vitro results were used to formulate diets in in vivo study. Sixteen male growing sheep (average BW 20 kg) were fed 100% native grass (NG) as control; 70% NG + 30% GS; 70% NG + 30% MO; and 70% NG + 30% AH. Nutrient consumptions, DMD, blood metabolites, and sheep performances were analyzed by using Completely Randomized Design. The in vitro results showed that the total gas production and DMD of CC and LL were the lowest (P<0.05) while the highest was found in GS, MO, and AH treatments (P<0.05). Meanwhile, the in vivo results showed that nutrient intakes (DM, CP, and CF) of GS and AH rations were the highest. The ADG, concentration of albumin, and globulin in all treatments were similar, while total serum protein, triglycerides, and glucose concentration in MO and AH rations were higher than others. Serum cholesterol concentration in MO ration was the lowest, meanwhile the concentration of IgG was the highest (P<0.05). Supplementation of 30% MO was the best choice for optimum rumen fermentation and maintaining health status of local sheep

Studi Pemetaan Multi-drug Resistant (Mdr) Escherichia Coli pada Peternakan Babi di Kota Kupang

The aim of this study was to determine the pattern of the spread of antibiotic-resistant E. coli on pig farms in Kupang City by using mapping analysis. Data on E. coli resistance comes from the results of laboratory analysis and as secondary data for spatial analysis. Spatial analysis uses the nearest neighbour index, convex hull and elementary analysis of disease methods. The results of this study have shown a high prevalence of E. coli (85.4%) with clustered distribution patterns and have a wide spread (10920 ha) in the area in Kupang City. MDR E. coli had a moderate prevalence (57.31%) by forming a group spread pattern and a wide spread (7778 Ha) on pig farms in Kupang City. This result encourages prevention and control efforts by all interested parties so that the rate of spread of resistant E. coli can be reduced

G.640T>C Polymorphism of the TGF-β2 Gene is Associated with Salmonella Pullorum Resistance in Indonesian Chickens

The objectives of this study were to identify polymorphism of transforming growth factor β2 (TGF-β2) gene associated with Salmonella pullorum resistance in Indonesian chickens. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assays were used to genotype Indonesian chickens. Analysis of polymorphism was conducted by using PopGen 3.2 software. The effect of genotype on S. pullorum resistance was analyzed using the SAS General Linear Model (GLM) procedure. Genotyping was performed on 278 chickens from 7 Indonesian chicken populations (Sentul, Merawang, Pelung, Kampung, Parent Cobb broiler, The F1 crossbreed of Kampung x Parent Cobb broiler (KB) and F2 KB x KB. The product of amplification was 284 bp. The TGF-β2| RsaI locus was polymorphic in all populations, producing two alleles (T and C) and three genotypes (TT, CT, and CC). The result from the analysis of the allele and genotype frequency showed that the T allele had a higher frequency than the C allele in all populations. The χ2 analysis showed that the 6 chicken populations were deviated from Hardy-Weinberg equilibrium, with the exception of the Parent Cobb broiler chicken. The association result showed that TT genotype was significantly associated with S. pullorum resistance in Sentul chicken. Although the leukocyte concentration, leukocyte differentiation and H/L ratio in Sentul chicken with three of TGF-β2 genotypes (TT, TC, and CC) were not statistically different. In conclusion, polymorphism in the TGF-β2 chicken gene can be used as a candidate marker to increase S. pullorum immune response

Bacterial Protein Characterization of Streptococcus Agalactiae by SDS-page Method for Subclinical Mastitis Irradiated Vaccine Materials in Dairy Cattle

A study have been conducted to isolate and characterize bacterial protein S. agalactiae, which is antigenic and can be used to test immunogenicity of vaccine in order to manufacture irradiated mastitis (inflammation of the udder) vaccine in ruminant. The study aims to determine the Molecular Weight (MW) bacterial protein S. agalactiae irradiation, which can be used to test the nature of its antigenic caharacteristic. The character of S. agalactiae antigenic stimulates antibody induction of the immune system, in which case is the body\u27s defense system against mastitis disease in cattle. In this study, irradiation of gamma ray is used to attenuate the pathogenicity of bacteria by reducing S. agalactiae antigenic caharacteristic. Previous research, in irradiation dose orientation before antigenic protein isolation of S. agalactiae, indicated that irradiation lethal dose to 50% (LD50) is 17 Gy. The characterization of S. agalactiae bacteria isolate using SDS-page method results in no significance different between irradiated and non-irradiated group, which indicated by MW range 75 – 100 kDa base on marker standard which used, or 99 kDa by the linier equation of Y = 11,60 – 0.05X (where Y = bands distance; X = MW standard protein); r2 = 0.99. In conclusion, 17 Gy irradiation dose does not impair antigenic property of S. agalactiae and therefore, can be applied to produce base material of irradiated vaccine for mastitis. Received: 04 May 2012; Revised: 27 November 2012; Accepted: 27 August 201

Resistance of Ampicillin, Ceftazidime, and Cefotaxime in Poultry’s Escherichia coli

Beta-lactam antibiotics are important antibiotics that are widely used in the field of human and animal health. Ampicillin resistance has been widely reported. Another increase in resistance is 3rd generation cephalosporins. The purpose of this study was to compare the ampicillin resistance profiles in 2019 and 2021 in the same E. coli isolates and to determine the resistance profiles of ampicillin, ceftazidime, and cefotaxime in live chicken E. coli. The research stages were the preparation of isolates; culture on differential selective media and checking the uniformity of bacterial cell morphology; biochemical test; bacterial DNA extraction; uspA gene amplification; visualization of amplification results; manufacture of bacterial suspensions; Kirby-Bauer disk diffusion resistance test; measurement of inhibition zones and determination of isolate status; and compared the ampicillin resistance test data. All isolates were confirmed positive for E. coli. The uspA gene (884 bp) was detected in all isolates. Ampicillin resistance in 2019 and 2021 in the same E. coli isolates when compared, there was no difference. Resistance test showed E. coli was resistant to ampicillin (100%), ceftazidime (15.4%), and cefotaxime (64.5%). The conclusion of the study was that there was no difference between the ampicillin resistance in 2019 and 2021 in E. coli isolates. Escherichia coli in this study had the highest resistance profile to ampicillin, followed by cefotaxime, and the lowest was ceftazidime

Bacterial Protein Characterization of Streptococcus agalactiae by SDS-page Method for Subclinical Mastitis Irradiated Vaccine Materials in Dairy Cattle

A study have been conducted to isolate and characterize bacterial protein S. agalactiae, which is antigenic and can be used to test immunogenicity of vaccine in order to manufacture irradiated mastitis (inflammation of the udder) vaccine in ruminant. The study aims to determine the Molecular Weight (MW) bacterial protein S. agalactiae irradiation, which can be used to test the nature of its antigenic caharacteristic. The character of S. agalactiae antigenic stimulates antibody induction of the immune system, in which case is the body's defense system against mastitis disease in cattle. In this study, irradiation of gamma ray is used to attenuate the pathogenicity of bacteria by reducing S. agalactiae antigenic caharacteristic. Previous research, in irradiation dose orientation before antigenic protein isolation of S. agalactiae, indicated that irradiation lethal dose to 50% (LD50) is 17 Gy. The characterization of S. agalactiae bacteria isolate using SDS-page method results in no significance different between irradiated and non-irradiated group, which indicated by MW range 75 – 100 kDa base on marker standard which used, or 99 kDa by the linier equation of Y = 11,60 – 0.05X (where Y = bands distance; X = MW standard protein); r2 = 0.99. In conclusion, 17 Gy irradiation dose does not impair antigenic property of S. agalactiae and therefore, can be applied to produce base material of irradiated vaccine for mastitis. Received: 04 May 2012; Revised: 27 November 2012; Accepted: 27 August 201