WS17 Natural alternatives to antibiotic growth promoters in Europe

Montesissa, Clara; Calini, F.

doi:10.1111/j.1365-2885.2006.00775_5.x

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…In addition, appropriate strategies to reduce pig and carcass cross-contamination still need to be perfected [8]. The use of antibiotics is excluded due to the intracellular persistence of this bacterium and the risk of positive selection of resistant clones [9]. In this scenario, vaccination may represent an attractive alternative for the reduction of both Salmonella incidence in swine, and the prevalence of carriers at abattoir.…”

Section: Introductionmentioning

confidence: 99%

Attenuated Salmonella enterica serovar Typhimurium lacking the ZnuABC transporter: An efficacious orally-administered mucosal vaccine against salmonellosis in pigs

Gradassi

Pesciaroli

Martinelli

et al. 2013

Vaccine

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We have recently demonstrated that an attenuated strain of Salmonella enterica serovar Typhimurium unable to synthesize the zinc transporter ZnuABC (S. Typhimurium ΔznuABC), is able to protect mice against systemic and enteric salmonellosis and is safe in pigs. Here, we have tested the protective effects of S. Typhimurium ΔznuABC in pigs. Resistance to challenge with the fully virulent strain S. Typhimurium ATCC 14028 was assessed in animals vaccinated with S. Typhimurium ΔznuABC (two dosages tested), in controls vaccinated with a formalin-inactivated virulent strain and in unvaccinated controls. Clinical signs of salmonellosis, faecal shedding and bacterial colonization of organs were used to assess vaccine-induced protection. After the challenge, pigs vaccinated with the attenuated S. Typhimurium ΔznuABC strain did not display clinical signs of salmonellosis (fever or diarrhoea). The vaccine also reduced intestinal tract colonization and faecal shedding of the fully virulent Salmonella strain, as compared to control groups. S. Typhimurium ΔznuABC represents a promising candidate vaccine against salmonellosis in pigs.

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Section: Introductionmentioning

confidence: 99%

Attenuated Salmonella enterica serovar Typhimurium lacking the ZnuABC transporter: An efficacious orally-administered mucosal vaccine against salmonellosis in pigs

Gradassi

Pesciaroli

Martinelli

et al. 2013

Vaccine

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“…The use of antibiotics (Abs) to control/prevent subclinical infection is not an option, given the intracellular survival of this bacterium and since many Abs are forbidden because of the potential risk of development of antimicrobial resistance (Montesissa, 2006). Vaccines against this infection in pigs are not widely used as their efficacy is, so far, questionable (Farzan and Friendship, 2009) and vaccine‐induced antibodies may cross‐react with serological tests.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of three commercial enzyme‐linked immunosorbent assays for the detection of antibodies against Salmonella spp. in meat juice from finishing pigs in Spain

Vico

Engel

Buist

et al. 2010

Zoonoses and Public Health

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Summary The control of animal salmonellosis is considered as a major objective in Europe and indirect ELISAs will be important tools for the implementation of control programs for this infection in pigs. We analyse the results yielded by three commercial ELISAs (Herdcheck® Swine Salmonella, SALMOTYPE® Pig Screen, and PrioCHECK® Salmonella) on meat juice samples from a population of slaughter pigs of Aragon, NW Spain, to assess their efficacy using traditional and latent‐class approaches. Overall, the Herdcheck® Swine Salmonella detected more Salmonella‐infected pigs than the other two tests, but its relative sensitivity was low (65.9%). A similar result was observed when only serotypes detectable by this test were considered (69.1%). When a Bayesian approach was used the Herdcheck® Swine Salmonella showed also the highest overall accuracy (sensitivity = 88% and specificity = 74%). Our results suggest that a relatively small proportion of the observed prevalence in herds would be explained by using these ELISAs. Also, this study points out that when different ELISA tests are used within the same herd, results may differ substantially. Thus, caution is advised if it is decided to use these assays for herd health classification in Spanish Salmonella control programs.

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Effect of dietary supplementation of spirulina (Arthrospira platensis) and thyme (Thymus vulgaris) on carcass composition, meat physical traits, and vitamin B12 content on growing rabbits

et al. 2014

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The aim of this study was to compare the effect and duration of dietary inclusion of 5% spirulina (Arthrospira platensis) and/or 3% thyme (Thymus vulgaris) on growing rabbit carcass composition, meat and bone rheological traits, and the vitamin B 12 content of Longissimus dorsi (LD) meat. The study involved 294 maternal line growing rabbits from the Pannon breeding programme. At weaning (5 wk), animals were randomly divided by dietary treatment into 7 groups of 42 rabbits each. A control group (C-C) received a pellet with no supplementation throughout the trial (5-11 wk of age), whereas the other groups were fed diets supplemented with 5% spirulina (S), 3% thyme (T) or with both ingredients (ST) for either the entire growing period (5-11 wk of age; groups: S-S, T-T, ST-ST, respectively), or its final part only (8-11 wk of age; groups: C-S, C-T, C-ST, respectively). Results showed that regardless of the duration of supplementation, spirulina and thyme provided no effect on the traits examined, except for scapular fat content, whose value was higher in the S-S group than in the C-T group (P<0.05). Spirulina was confirmed as a rich source of vitamin B 12 that was successfully transferred into LD meat, thus demonstrating its value as an effective natural supplement in producing food fortified with this vital element. Further studies are necessary to clarify the effect of spirulina on carcass fat deposition, bone development, and mineralisation.

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WS17 Natural alternatives to antibiotic growth promoters in Europe

Cited by 3 publications

References 6 publications

Attenuated Salmonella enterica serovar Typhimurium lacking the ZnuABC transporter: An efficacious orally-administered mucosal vaccine against salmonellosis in pigs

Attenuated Salmonella enterica serovar Typhimurium lacking the ZnuABC transporter: An efficacious orally-administered mucosal vaccine against salmonellosis in pigs

Evaluation of three commercial enzyme‐linked immunosorbent assays for the detection of antibodies against Salmonella spp. in meat juice from finishing pigs in Spain

Effect of dietary supplementation of spirulina (Arthrospira platensis) and thyme (Thymus vulgaris) on carcass composition, meat physical traits, and vitamin B12 content on growing rabbits

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WS17 Natural alternatives to antibiotic growth promoters in Europe

Cited by 3 publications

References 6 publications

Attenuated Salmonella enterica serovar Typhimurium lacking the ZnuABC transporter: An efficacious orally-administered mucosal vaccine against salmonellosis in pigs

Attenuated Salmonella enterica serovar Typhimurium lacking the ZnuABC transporter: An efficacious orally-administered mucosal vaccine against salmonellosis in pigs

Evaluation of three commercial enzyme‐linked immunosorbent assays for the detection of antibodies against Salmonella spp. in meat juice from finishing pigs in Spain

Effect of dietary supplementation of spirulina (Arthrospira platensis) and thyme (Thymus vulgaris) on carcass composition, meat physical traits, and vitamin B12 content on growing rabbits

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WS17 Natural alternatives to antibiotic growth promoters in Europe