Salmonella Incidence in Broilers from Breeders Vaccinated with Live and Killed Salmonella

Young, Suzanne D.; Olusanya, O.; Jones, Kiersun; Liu, T.; Liljebjelke, Karen; Hofacre, Charles L.

doi:10.3382/japr.2007-00009

Cited by 31 publications

(11 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was documented that the frequency of S. Enteritidis re-isolation from the internal organs (liver and spleen), the intestine (caecum) and the eggs (shells or contents) was significantly reduced in vaccinated broilers and layers with multiple doses of S. Enteritidis oil emulsion bacterin than non vaccinated controls (Gast et al, 1993;Nakamura et al, 1994;Timms et al, 1994;Davison et al, 1999;Miyamoto et al, 1999;Khan et al, 2003;Okamura et al, 2007;Radwan et al, 2007). Young et al, (2007) detected that vaccination against Salmonellae in breeders could reduce the colonization of the organism in the hatched broiler chicks. As well, Penha et al, (2009) andPriyantha (2009) found that vaccination of layers and breeders with inactivated S. Enteritidis vaccine induced significant reduction of organ (spleen, liver and caeca) colonization after challenge.…”

Section: Resultsmentioning

confidence: 99%

A Trial to Prevent Salmonella Enteritidis Infection in Broiler Chickens Using Autogenous Bacterin Compared with Probiotic Preparation

El-Ghany¹,

El-Shafii²,

Hatem³

et al. 2012

JAS

View full text Add to dashboard Cite

This study was carried out to investigate the efficacy of the locally prepared autogenous Salmonella Enteritidis (S. Enteritidis) bacterin as well as a probiotic preparation in the prevention of broiler chickens from S. Enteritidis infection. A total of three hundred and ten, one day-old Hubbard broiler chicks were used. At day old, ten chicks were sacrificed and examined bacteriologically to prove their freedom from S. Enteritidis infection. Three hundred birds were divided into four equal groups. Chickens in group (1) were kept as blank control negative non infected-non treated birds, while those of group (2) were challenged non treated birds. Group (3) was vaccinated intramuscularly by the autogenous bacterin at the first day of age in a dose of 0.2 ml/bird and boostered as a second dose at 10 days of age in a dose 0.5 ml/bird, however, group (4) was given a commercial probiotic preparation as 1gm/ 4 liter of the drinking water from the first day of age and continued for 5 successive days. All birds in groups 2, 3, and 4 were challenged orally by 0.5 ml containing 10 9 CFU/ml S. Enteritidis at 20 days of age. All the groups were kept under complete observation for three weeks for recording signs, moralities, gross lesions, shedding rate of S. Enteritidis, re-isolation of the organism, the performance as well as detection of the titer of antibodies serologically using microagglutination test and enzyme linked immunosorbant assay (ELISA) test. The results showed that the both the bacterin and the probiotic are equally effective in reducing signs, mortalities, gross lesions, the shedding rate and the re-isolation of S. Enteritidis and also increasing in the performance of chickens. The effect of the bacterin and the probiotic was significant (P≤0.05) when compared with the infected non treated chickens. Moreover, the serological investigation revealed an improvement in the titer of antibodies after vaccination and probiotic treatment. In conclusion, double doses of locally prepared autogenous S. Enteritidis bacterin and the probiotic preparation were effective and safe methods for prevention of S. Enteritidis infection in broiler chickens.

show abstract

Section: Resultsmentioning

confidence: 99%

A Trial to Prevent Salmonella Enteritidis Infection in Broiler Chickens Using Autogenous Bacterin Compared with Probiotic Preparation

El-Ghany¹,

El-Shafii²,

Hatem³

et al. 2012

JAS

View full text Add to dashboard Cite

show abstract

“…Pullets were exposed to Megan VAC-1 (Lohmann Animal Health, Winslow, ME) by aerosol spray at 1 day of age, at 2 weeks of age, and again through the drinking water at 5 weeks of age. Salmonella bacterin (Lohmann Animal Health) was prepared as an oil emulsion vaccine, and 0.5 ml was injected intramuscularly (pectoral muscle) into pullet chickens at 10 and 18 weeks of age (41). The vaccination program was limited to the pullet flocks from this company.…”

Section: Methodsmentioning

confidence: 99%

Effect of Salmonella Vaccination of Breeder Chickens on Contamination of Broiler Chicken Carcasses in Integrated Poultry Operations

Dórea

Cole

Hofacre

et al. 2010

Appl Environ Microbiol

View full text Add to dashboard Cite

While measures to control carcass contamination with Salmonella at the processing plant have been implemented with some success, on-farm interventions that reduce Salmonella prevalence in meat birds entering the processing plant have not translated well on a commercial scale. We determined the impact of Salmonella vaccination on commercial poultry operations by monitoring four vaccinated and four nonvaccinated breeder (parental) chicken flocks and comparing Salmonella prevalences in these flocks and their broiler, meat bird progeny. For one poultry company, their young breeders were vaccinated by using a live-attenuated Salmonella enterica serovar Typhimurium vaccine (Megan VAC-1) followed by a killed Salmonella bacterin consisting of S. enterica serovar Berta and S. enterica serovar Kentucky. The other participating poultry company did not vaccinate their breeders or broilers. The analysis revealed that vaccinated hens had a lower prevalence of Salmonella in the ceca (38.3% versus 64.2%; P < 0.001) and the reproductive tracts (14.22% versus 51.7%; P < 0.001). We also observed a lower Salmonella prevalence in broiler chicks (18.1% versus 33.5%; P < 0.001), acquired from vaccinated breeders, when placed at the broiler farms contracted with the poultry company. Broiler chicken farms populated with chicks from vaccinated breeders also tended to have fewer environmental samples containing Salmonella (14.4% versus 30.1%; P < 0.001). There was a lower Salmonella prevalence in broilers entering the processing plants (23.4% versus 33.5%; P < 0.001) for the poultry company that utilized this Salmonella vaccination program for its breeders. Investigation of other company-associated factors did not indicate that the difference between companies could be attributed to measures other than the vaccination program.

show abstract

“…For example, vaccinating breeding hens with an attenuated S. Typhimurium strain reduced intestinal colonization of their progeny when they were challenged with virulent wild-type strains (Hassan and Curtiss, 1996). In another study, vaccination of breeding hens with a trivalent bacterin resulted in passive transfer of immunity to their progeny against homologous, although not heterologous, Salmonella challenge (Young et al, 2007). Passively transferred maternal immunity may be further enhanced by treating the chicks with a live vaccine as well (Bailey et al, 2007a).…”

Section: Factors Affecting the Performance And Efficacy Of Salmonellamentioning

confidence: 97%

Pre-harvest measures to control Salmonella in laying hens

Gast

2011

Improving the Safety and Quality of Eggs and Egg Products

View full text Add to dashboard Cite

Salmonella Incidence in Broilers from Breeders Vaccinated with Live and Killed Salmonella

Cited by 31 publications

References 18 publications

A Trial to Prevent Salmonella Enteritidis Infection in Broiler Chickens Using Autogenous Bacterin Compared with Probiotic Preparation

A Trial to Prevent Salmonella Enteritidis Infection in Broiler Chickens Using Autogenous Bacterin Compared with Probiotic Preparation

Effect of Salmonella Vaccination of Breeder Chickens on Contamination of Broiler Chicken Carcasses in Integrated Poultry Operations

Pre-harvest measures to control Salmonella in laying hens

Contact Info

Product

Resources

About