Desempenho de frangos de corte após vacinação com uma vacina viva atuada contra coccidiose aviária
Ano de defesa: | 2020 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
Centro de Ciências Rurais |
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Medicina Veterinária
|
Departamento: |
Medicina Veterinária
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/21579 |
Resumo: | The objective of this study was to evaluate the effectiveness of vaccination against avian coccidiosis (live attenuated commercial vaccine LIVACOX® T) in the face of a challenge, and its correlation with the productive, economic performance, clinical observation and oocyst excretion in broilers. For this purpose, 420 1-day-old Cobb chicks were divided into five groups of 84 birds divided into 6 cages per group: G1. Unvaccinated and unchallenged control group; G2. Control group vaccinated with 10 ul of the vaccine on the day (zero); G3. Group challenged with 200 ul of the vaccine on day 1; G4. Group vaccinated on day (zero) and challenged on day 14; G5. Non-vaccinated group, but challenged on day 14. Vaccination by mouth was performed at a dose of 300 to 500 oocysts. After vaccination, groups 3, 4 and 5 were challenged orally with 6,000 to 10,000 oocysts (equivalent to 20 times the dose of the vaccine). During the entire period of the experiment (28 days), clinical signs were evaluated, the weight and feed conversion of the birds were evaluated, and feces were collected to evaluate the excretion of oocysts. In addition, macroscopic analysis of intestinal injuries of birds was also performed. It can be observed that both after the vaccination of groups 2, 3 and 4 and after the challenge in groups 4 and 5 there was an increase in the excretion of oocysts. In relation to clinical signs, on the 14th and 21st days in group 3, they were observed in more intense clinical signs such as weakness and lack of appetite, the feces presented with a watery and fetid consistency. In macroscopic evaluations performed on the 7th and 14th day in animals in group 3, hemorrhagic villi, presence of mucus and flaking were seen. In the analysis of weight gain, if we compare our results of final weights between groups 3 and 4, we have a difference of -105.74g per bird. Therefore, if we multiply this value by the number of birds slaughtered per day in a medium / large size refrigerator (250,000), we have an amount of 26,435 kg less chicken meat per day of slaughter, representing 581,570 kg of monthly losses (22 slaughter days), or about R $ 3,489,420.00 or U $$ 872,355.00, considering the commercial value of chicken meat at R $ 6.00 / kg or U $$ 1.5 / kg. Thus, the productive and economic impact of coccidiosis on birds is evident, and the importance of vaccination to prevent the occurrence of the disease and thus reduce losses is highlighted. |
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2021-07-23T11:06:08Z2021-07-23T11:06:08Z2020-02-20http://repositorio.ufsm.br/handle/1/21579The objective of this study was to evaluate the effectiveness of vaccination against avian coccidiosis (live attenuated commercial vaccine LIVACOX® T) in the face of a challenge, and its correlation with the productive, economic performance, clinical observation and oocyst excretion in broilers. For this purpose, 420 1-day-old Cobb chicks were divided into five groups of 84 birds divided into 6 cages per group: G1. Unvaccinated and unchallenged control group; G2. Control group vaccinated with 10 ul of the vaccine on the day (zero); G3. Group challenged with 200 ul of the vaccine on day 1; G4. Group vaccinated on day (zero) and challenged on day 14; G5. Non-vaccinated group, but challenged on day 14. Vaccination by mouth was performed at a dose of 300 to 500 oocysts. After vaccination, groups 3, 4 and 5 were challenged orally with 6,000 to 10,000 oocysts (equivalent to 20 times the dose of the vaccine). During the entire period of the experiment (28 days), clinical signs were evaluated, the weight and feed conversion of the birds were evaluated, and feces were collected to evaluate the excretion of oocysts. In addition, macroscopic analysis of intestinal injuries of birds was also performed. It can be observed that both after the vaccination of groups 2, 3 and 4 and after the challenge in groups 4 and 5 there was an increase in the excretion of oocysts. In relation to clinical signs, on the 14th and 21st days in group 3, they were observed in more intense clinical signs such as weakness and lack of appetite, the feces presented with a watery and fetid consistency. In macroscopic evaluations performed on the 7th and 14th day in animals in group 3, hemorrhagic villi, presence of mucus and flaking were seen. In the analysis of weight gain, if we compare our results of final weights between groups 3 and 4, we have a difference of -105.74g per bird. Therefore, if we multiply this value by the number of birds slaughtered per day in a medium / large size refrigerator (250,000), we have an amount of 26,435 kg less chicken meat per day of slaughter, representing 581,570 kg of monthly losses (22 slaughter days), or about R $ 3,489,420.00 or U $$ 872,355.00, considering the commercial value of chicken meat at R $ 6.00 / kg or U $$ 1.5 / kg. Thus, the productive and economic impact of coccidiosis on birds is evident, and the importance of vaccination to prevent the occurrence of the disease and thus reduce losses is highlighted.O objetivo deste trabalho foi avaliar a eficácia da vacinação contra coccidiose aviária (vacina comercial viva atenuada LIVACOX® T) frente a um desafio, e sua correlação com o desempenho produtivo, econômico, observação clínica e excreção de oocistos em frangos de corte. Para tanto, 420 pintainhos de 1 dia da linhagem Cobb, foram divididos em cinco grupos de 84 aves divididas em 6 gaiolas por grupo: G1. Grupo controle não vacinado e não desafiado; G2. Grupo controle vacinado com 10 ul da vacina no dia (zero); G3. Grupo desafiado com 200 ul da vacina no dia 1; G4. Grupo vacinado no dia (zero) e desafiado no dia 14; G5. Grupo não vacinado, porém desafiado no dia 14. A vacinação via oral foi realizada na dose de 300 a 500 oocistos. Após a vacinação, os grupos 3, 4 e 5 foram desafiados via oral com 6.000 à 10.000 oocistos (equivalente a 20 vezes a dose da vacina). Durante todo o período do experimento (28 dias) foram avaliados os sinais clínicos, avaliou-se o peso e a conversão alimentar das aves e foram coletadas fezes para avaliação de excreção de oocistos. Além disso, também foi realizada análise macroscópica de lesões intestinais das aves. Pode-se observar que tanto após a vacinação dos grupos 2, 3 e 4 quanto após o desafio nos grupos 4 e 5 houve aumento na excreção de oocistos. Em relação aos sinais clínicos, no 14º e 21º dia no grupo 3 foram observados em sinais clínicos mais intensos como debilidade e ausência de apetite, as fezes apresentaram-se com consistência aquosa e fétida. Nas avaliações macroscópicas realizadas no 7º e 14º dia nos animais do grupo 3 foram visualizadas vilosidades hemorrágicas, presença de muco e descamação. Já na análise do ganho de peso, se compararmos nossos resultados dos pesos finais entre os grupos 3 e 4, temos uma diferença de -105,74g por ave. Logo, se multiplicarmos este valor pelo número de aves abatidas por dia em um frigorífico de médio/grande porte (250.000), temos um montante de 26.435 kg a menos de carne de frango por dia de abate, representando 581.570kg de perdas mensais (22 dias de abate), ou cerca de R$ 3.489.420,00 ou U$$ 872.355,00, considerando o valor comercial da carne de frango a R$ 6,00/kg ou U$$ 1,5/kg. Desta forma, fica evidente o impacto produtivo e econômico da coccidiose em aves, e destaca-se a importância da vacinação para prevenir a ocorrência da doença e desta forma reduzir as perdas.porUniversidade Federal de Santa MariaCentro de Ciências RuraisPrograma de Pós-Graduação em Medicina VeterináriaUFSMBrasilMedicina VeterináriaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessCoccidiose aviáriaFrangos de corteVacinaçãoDesafioAvian coccidiosisBroilersVaccinationChallengeCNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIADesempenho de frangos de corte após vacinação com uma vacina viva atuada contra coccidiose aviáriaPerformance of chicken after vaccination with a live vaccine active against avian coccidiosisinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisVogel, Fernanda Silveira Flôreshttp://lattes.cnpq.br/9676833435314493Braunig, PatriciaLibardoni, Felipehttp://lattes.cnpq.br/6296321031869792Giacomini, Letícia da Silva500500000007600600600600600a86342d7-ec99-49d4-8748-67e3266c07591a7b320a-16d6-46ee-b101-4fe8a6b4c1201850ee3b-4175-4346-bcc0-932fb662879b74619b61-c41f-4c75-89f3-e4d3c9acea98reponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Desempenho de frangos de corte após vacinação com uma vacina viva atuada contra coccidiose aviária |
dc.title.alternative.eng.fl_str_mv |
Performance of chicken after vaccination with a live vaccine active against avian coccidiosis |
title |
Desempenho de frangos de corte após vacinação com uma vacina viva atuada contra coccidiose aviária |
spellingShingle |
Desempenho de frangos de corte após vacinação com uma vacina viva atuada contra coccidiose aviária Giacomini, Letícia da Silva Coccidiose aviária Frangos de corte Vacinação Desafio Avian coccidiosis Broilers Vaccination Challenge CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
title_short |
Desempenho de frangos de corte após vacinação com uma vacina viva atuada contra coccidiose aviária |
title_full |
Desempenho de frangos de corte após vacinação com uma vacina viva atuada contra coccidiose aviária |
title_fullStr |
Desempenho de frangos de corte após vacinação com uma vacina viva atuada contra coccidiose aviária |
title_full_unstemmed |
Desempenho de frangos de corte após vacinação com uma vacina viva atuada contra coccidiose aviária |
title_sort |
Desempenho de frangos de corte após vacinação com uma vacina viva atuada contra coccidiose aviária |
author |
Giacomini, Letícia da Silva |
author_facet |
Giacomini, Letícia da Silva |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Vogel, Fernanda Silveira Flôres |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9676833435314493 |
dc.contributor.referee1.fl_str_mv |
Braunig, Patricia |
dc.contributor.referee2.fl_str_mv |
Libardoni, Felipe |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/6296321031869792 |
dc.contributor.author.fl_str_mv |
Giacomini, Letícia da Silva |
contributor_str_mv |
Vogel, Fernanda Silveira Flôres Braunig, Patricia Libardoni, Felipe |
dc.subject.por.fl_str_mv |
Coccidiose aviária Frangos de corte Vacinação Desafio |
topic |
Coccidiose aviária Frangos de corte Vacinação Desafio Avian coccidiosis Broilers Vaccination Challenge CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
dc.subject.eng.fl_str_mv |
Avian coccidiosis Broilers Vaccination Challenge |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
description |
The objective of this study was to evaluate the effectiveness of vaccination against avian coccidiosis (live attenuated commercial vaccine LIVACOX® T) in the face of a challenge, and its correlation with the productive, economic performance, clinical observation and oocyst excretion in broilers. For this purpose, 420 1-day-old Cobb chicks were divided into five groups of 84 birds divided into 6 cages per group: G1. Unvaccinated and unchallenged control group; G2. Control group vaccinated with 10 ul of the vaccine on the day (zero); G3. Group challenged with 200 ul of the vaccine on day 1; G4. Group vaccinated on day (zero) and challenged on day 14; G5. Non-vaccinated group, but challenged on day 14. Vaccination by mouth was performed at a dose of 300 to 500 oocysts. After vaccination, groups 3, 4 and 5 were challenged orally with 6,000 to 10,000 oocysts (equivalent to 20 times the dose of the vaccine). During the entire period of the experiment (28 days), clinical signs were evaluated, the weight and feed conversion of the birds were evaluated, and feces were collected to evaluate the excretion of oocysts. In addition, macroscopic analysis of intestinal injuries of birds was also performed. It can be observed that both after the vaccination of groups 2, 3 and 4 and after the challenge in groups 4 and 5 there was an increase in the excretion of oocysts. In relation to clinical signs, on the 14th and 21st days in group 3, they were observed in more intense clinical signs such as weakness and lack of appetite, the feces presented with a watery and fetid consistency. In macroscopic evaluations performed on the 7th and 14th day in animals in group 3, hemorrhagic villi, presence of mucus and flaking were seen. In the analysis of weight gain, if we compare our results of final weights between groups 3 and 4, we have a difference of -105.74g per bird. Therefore, if we multiply this value by the number of birds slaughtered per day in a medium / large size refrigerator (250,000), we have an amount of 26,435 kg less chicken meat per day of slaughter, representing 581,570 kg of monthly losses (22 slaughter days), or about R $ 3,489,420.00 or U $$ 872,355.00, considering the commercial value of chicken meat at R $ 6.00 / kg or U $$ 1.5 / kg. Thus, the productive and economic impact of coccidiosis on birds is evident, and the importance of vaccination to prevent the occurrence of the disease and thus reduce losses is highlighted. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020-02-20 |
dc.date.accessioned.fl_str_mv |
2021-07-23T11:06:08Z |
dc.date.available.fl_str_mv |
2021-07-23T11:06:08Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/21579 |
url |
http://repositorio.ufsm.br/handle/1/21579 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
500500000007 |
dc.relation.confidence.fl_str_mv |
600 600 600 600 600 |
dc.relation.authority.fl_str_mv |
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dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Medicina Veterinária |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Medicina Veterinária |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.source.none.fl_str_mv |
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