Fowl Typhoid Outbreak on a Commercial Turkey Farm in Croatia.

Fowl typhoid is a septicemic disease caused by subsp. serovar Gallinarum biovar Gallinarum. It is a host-specific disease primarily affecting chickens and turkeys, although it has been reported in various animal species and sporadically in humans.

Autogenous Vaccine Application as an Innovative Antimicrobial Therapy in Poultry Farming-A Case Report.

is one of the most common bacterial causes of infection in poultry farming. Whether the infection is localized or systemic, a primary or secondary disease, it is most frequently treated through the application of wide-spectrum antimicrobials. Excessive use of antimicrobials in agriculture is significantly contributing to the worldwide rise of antimicrobial resistance, but is also very expensive and often ineffective in the long term.

Genomic Analysis of Longitudinally Isolated from Broiler Breeder Flocks after the Application of an Autogenous Vaccine.

is the main bacterial cause of major economic losses and animal welfare issues in poultry production. In this study, we investigate the effect of an autogenous vaccine on strains longitudinally isolated from broiler breeder flocks on two farms. In total, 115 isolates were sequenced using Illumina technologies, and compared based on a single-nucleotide polymorphism (SNP) analysis of the core-genome and antimicrobial resistance (AMR) genes they carried.

Comparison of Chicken Immune Responses to Immunization with Vaccine La Sota or ZG1999HDS Strain of Newcastle Disease Virus.

Newcastle disease (ND) is a highly contagious avian disease. Global control of ND is mainly based on vaccination of poultry; however, reported outbreaks of ND in vaccinated flocks indicate a constant need to re-evaluate the existing vaccines and a development of the new ones. In this study, 4-week-old male chickens of the layer commercial hybrid were immunized oculonasally with a commercial NDV live La Sota vaccine (LS group), a suspension of lyophilized NDV strain ZG1999HDS (ZG group), or saline (Control (K) group).

a novel opportunistic pathogen in poultry.

[H. Kurth, 1883. Ueber , eine neue Bakterienart.

Longitudinal study on the effect of autogenous vaccine application on the sequence type and virulence profiles of Escherichia coli in broiler breeder flocks.

Colibacillosis is one of the most common problems in the poultry industry. Escherichia coli strains on farms are often genetically diverse and therefore commercial vaccines provide little protection to the flocks. Here, we investigated the effect of the autogenous E.

Phylogenetic characterization of avian pathogenic Escherichia coli strains longitudinally isolated from broiler breeder flocks vaccinated with autogenous vaccine.

Escherichia coli is the most common bacterial cause of infections in poultry farms. It is known for its genetic heterogenicity that complicates the protection of poultry health through immunoprophylaxis. In farms with continuous problems with colibacillosis, autogenous E.

Immunogenicity of Newcastle disease virus strain ZG1999HDS applied oculonasally or by means of nebulization to day-old chicks.

Newcastle disease (ND) is one of the classic viral infections of poultry which resists all the efforts of eradication. Newcastle disease virus (NDV) strain ZG1999HDS was isolated during the outbreak in 1,999 at a broiler farm in Croatia. Previous trials in chickens confirmed it to be a lentogenic pathotype and immunogenic by stimulating humoral and cell mediated immunity.

High phylogenetic diversity of is correlated with low biosecurity measures and management practices on poultry farms.

is considered one of the most common bacterial causative agents of reproductive tract disorders in poultry. In this study, phylogenetic analysis of partial sequences and biotyping using MALDI-TOF MS was done in order to investigate the genetic diversity of isolates from 13 farms with different biosecurity measures and management practices. Sampling was done as a part of regular monitoring, except for Farms 9-13 that were included in the study to represent extensive production systems with lowest biosecurity levels.

Enrichment of eggs in n-3 polyunsaturated fatty acids by feeding hens with different amount of linseed oil in diet.

The production of n-3 polyunsaturated fatty acid enriched eggs by addition of linseed oil to the laying hens' diet has been evaluated in terms of production parameters and n-6/n-3 ratio. A total of 150 18weeks old Lohmann Brown laying hens were housed in cages and fed with basal diet and four experimental diets containing 1%, 2%, 3% or 4% of linseed oil added to the basal diet. The effect of the altered level of linseed oil on hens laying performance, fatty acid content and composition and cholesterol content in egg yolk has been evaluated during 13weeks of experiment.

Immunogenicity and safety of Queensland V4 and Ulster 2C strains of Newcastle disease virus given to maternally immune, newly hatched chickens by nebulization.

Commercial chickens with a high level of maternal antibodies for Newcastle disease were vaccinated when newly hatched with Queensland V4 or Ulster 2C Newcastle disease virus (NDV) strains by nebulization. The exposure time to a fine aerosol of vaccine produced with an ultrasonic nebulizer was 60 sec. The chickens were challenged oculonasally with virulent NDV strain Texas GB in weekly intervals up to the 49th day of life.