VAXXITEK HVT + IBD - Field Study - Brazil - Merial
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This document summarizes the field experience of using Vaxxitek HVT+IBD vaccine in broilers in Copacol Parana, Brazil over 6 months and 450 flocks totaling 7.2 million birds. The experimental group received a single dose of Vaxxitek HVT+IBD in ovo, while the standard program used Marek's disease vaccine in ovo and two intermediate IBD vaccines by drinking water. Results showed the Vaxxitek group had lower mortality, slightly better feed conversion ratio, older age, lower condemnation rates, and higher body weight compared to the standard program. Vaxxitek provides benefits of improved production performance and lower condemnation rates.
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This document summarizes a case report on the effects of introducing PRSSv vaccination with Progressis in addition to existing PCV2 vaccination with Circovac in an Italian pig farm. Key results included an improvement in the farrowing rate from 82.8% to over 90% after introducing Progressis vaccination for gilts and sows. Other positive impacts were a steady increase in litter size from 13.26 to 15.01 piglets born alive per litter between 2010-2012, and an increase in piglets weaned per sow from 24.87 to 27.42 over the same period despite lengthening the reproductive cycle. The case report concluded that PRSSv vaccination with Progressis was an effective tool to help improve
Apvs2013 06 castellan et al.-clinical case report of h1 n1pdm in italy
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Vila et al. Improvement of herd performance parameters after sow and piglet v...
This document summarizes the results of a case study conducted on a 2,700 sow farm in Bulgaria that implemented a full herd vaccination program against PCV2 using CIRCOVAC. The program involved vaccinating piglets at 28-30 days and sows. Results showed improvements in herd performance parameters, including increased litter size from 13 to 17.8 total born piglets, decreased days to 100kg by 5.3 days, improved daily weight gain, and stabilized health status by decreasing gastric ulcers and respiratory signs. The owner considers CIRCOVAC vaccination as a key tool for farm management and competitiveness.
Aasv2014 daresta et al. comparative pcv2 fetal protection-poster
This study evaluated the protective effects of two PCV2 vaccines (Vaccine A and Vaccine B) against fetal PCV2 infection in pigs. Gilts were vaccinated with one of the vaccines or unvaccinated as controls. After artificial insemination with PCV2-spiked semen, fetuses, placentas, and amniotic fluid were tested for PCV2. Vaccine A significantly reduced PCV2 positivity in fetuses compared to unvaccinated controls, but Vaccine B increased PCV2 positivity in placentas and amniotic fluid. The results suggest Vaccine A may better protect against subclinical fetal PCV2 infection than Vaccine B.
Aasv2014 callen et al. vaccination compliance to pcv2 using a dth test
This document describes two trials that tested a delayed type hypersensitivity (DTH) test to detect compliance with PCV2 vaccination. In the first trial, vaccinated pigs all showed a significant skin reaction to antigen injection, while 50% of unvaccinated pigs reacted. The reaction was strongest 20-24 hours after injection. Histology confirmed a type IV DTH response. The second trial found nearly all pigs vaccinated with CIRCOVAC reacted, while only 25% of those vaccinated with another PCV2 vaccine reacted. The DTH test shows potential as a practical way to check compliance with CIRCOVAC vaccination. Further studies are needed to improve specificity and standardize the technique in field conditions.
ESPHM2014 MERIAL Momentum
This document contains an abstract from a conference on Porcine Circovirus diseases. The abstract describes a field study comparing the effectiveness of three different PCV2 piglet vaccines (CIRCOVAC, Vaccine A, and Vaccine B) on a large Russian farm. Over 4,000 piglets were randomly assigned to receive one of the three vaccines and were monitored for average daily weight gain and mortality in the post-weaning and finisher stages. The results showed CIRCOVAC and Vaccine A performed similarly in terms of weight gain and mortality, while Vaccine B results were slightly lower. The study demonstrates the ability of CIRCOVAC to control PCV2 under field conditions in Russia comparable to another leading
ESPHM 2014 MERIAL momentum cover
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Ipvs2014 02 mortensen et al.-pcv2 circulation control in danish fatteners abs...
This study assessed the control of PCV2 viral circulation in Danish slaughter pigs vaccinated with CIRCOVAC at 3 weeks of age. Blood samples were taken from 8 farms at various weight intervals and tested for PCV2 viral load and antibodies. No PCV2 DNA was detected in any samples, and antibody levels remained low, indicating an absence of PCV2 circulation. Vaccination with CIRCOVAC at 3 weeks of age provided excellent control of PCV2 throughout the fattening period, protecting against PCVD.
Ipvs2014 01 chapat et al-preliminary results cmi circovac piglets abstract
The document summarizes preliminary results from a study on the cell-mediated immune response following vaccination with CIRCOVAC in piglets. The study found that vaccinated piglets had higher levels of IFN-γ producing cells after re-stimulation with PCV2 at 21 and 49 days compared to unvaccinated piglets. Additionally, vaccinated piglets continued to produce IFN-γ in the absence of re-stimulation, suggesting that antigen presenting cells loaded with PCV2 antigen were persisting and presenting antigen to T cells for an extended period after vaccination. Co-culture of purified antigen presenting cells and T cells from vaccinated piglets produced IFN-γ without ex vivo stimulation, supporting the hypothesis of sustained antigen presentation following
12 merialberlinhansnauwynck
The document discusses how various viral pathogens can cause reproductive problems in sows through general disease, replication in the reproductive tract leading to placenta damage, or reaching embryos/fetuses via contaminated semen or transplacental spread. It outlines the stages of gestation where embryos are susceptible to infection and the potential clinical outcomes for fetuses and sows depending on the virus and timing of infection.
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This document discusses influenza in humans and pigs, comparing their epidemiology and control. It covers topics like antigenic drift vs shift, annual impacts of seasonal influenza, goals for influenza vaccination, recommendations for vaccine strain changes, and the human-animal interface of influenza. Sanofi Pasteur is highlighted as a global leader in human vaccines with a vision of protecting health worldwide through superior vaccines.
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- 1. VAXXITEK® HVT+IBD FIELD EXPERIENCE IN BROILERS COPACOL PARANÁ – BRAZIL IRINEU DANTES PERON MERIAL AVIAN FORUM, ROMA 27TH, 28TH AND 29TH JUNE 2012VAXXITEK.COM
- 2. MERIAL AVIAN FORUM, ROMA 27TH, 28TH AND 29TH JUNE 2012VAXXITEK.COM COPACOL LOCATION
- 3. PROTOCOL MERIAL AVIAN FORUM, ROMA 27TH, 28TH AND 29TH JUNE 2012VAXXITEK.COM • EVALUATION PERIOD: 6 MONTHS • Nº OF FLOCKS & CYCLES: 150 FLOCKS X 3 CYCLES = 450 FLOCKS • Nº OF BIRDS/CYCLE: 2,4 MILLIONS X 3 CYCLES = 7,2 MILLION • COPACOL STANDARD PROGRAM: • MAREK’S DISEASE VACCINE IN OVO ON THE 19TH DAY OF INCUBATION • 2 INTERMEDIATES IBD VACCINES BY DRINKING WATER AT 7 AND 14 DAYS OF AGE. • EXPERIMENTAL PROGRAM: • 1 DOSE OF VAXXITEK HVT+IBD IN OVO ON THE 19TH DAY OF INCUBATION • PARAMETERS OF EVALUATION: • MORTALITY, DWG, FCR, AGE, BW, EPI, CONDEMNATION RATE
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