Cândida Jerónimo - Academia.edu (original) (raw)

Papers by Cândida Jerónimo

Revista da UI_IPSantarém - Unidade de Investigação do Instituto Politécnico de Santarém, Nov 23, 2015

Pretendeu-se avaliar o efeito da introducao pela primeira vez de uma vacina inativada comercial c... more Pretendeu-se avaliar o efeito da introducao pela primeira vez de uma vacina inativada comercial contra a doenca do circovirus no plano profilatico em porcas reprodutoras, sobre a prolificidade e a mortalidade dos leitoes ao nascimento. O numero de leitoes nascidos vivos no grupo de porcas nao vacinadas foi significativamente inferior ( P = 0,007) ao numero dos leitoes nascidos das porcas vacinadas (13,62 versus 14,95 leitoes). O numero de nados mortos foi menor ( P = 0,002) no grupo de porcas vacinadas comparativamente com o observado no grupo de porcas nao vacinadas (0,53 versus 1,10).

Pretendeu-se avaliar o efeito da introdução pela primeira vez de uma vacina inativada comercial c... more Pretendeu-se avaliar o efeito da introdução pela primeira vez de uma vacina inativada comercial contra a doença do circovírus no plano profilático em porcas reprodutoras, sobre a prolificidade e a mortalidade dos leitões ao nascimento. O número de leitões nascidos vivos no grupo de porcas não vacinadas foi significativamente inferior (P = 0,007) ao número dos leitões nascidos das porcas vacinadas (13,62 versus 14,95 leitões). O número de nados mortos foi menor (P = 0,002) no grupo de porcas vacinadas comparativamente com o observado no grupo de porcas não vacinadas (0,53 versus 1,10).

The etiologic agents of circovirosis is a small virus known as Porcine Circovirus (PCV). The PCV ... more The etiologic agents of circovirosis is a small virus known as Porcine Circovirus (PCV). The PCV is considered a ubiquitous virus that causes disease only in pigs and has been isolated from all continents. This virus is responsible for various affections, being the most common and responsible by major economic losses in the sector, the Postweaning Multisystemic Wasting Syndrome (PMWS). There are several risk factors that predispose animals to manifestation of clinical signs of disease, such as deficiencie management practices, the presence of co-infections, immune status of sows against PCV and immuno-stimulation by different causes. The clinical signs and lesions associated with infection with PCV2 suggest that this is an immunosuppressant/immunomodulating agent. The control and prevention of PCVD involve the minimizing of effect of risk factors and vaccination against PCV2. The present study aimed to evaluate the effect of the application of the vaccine against the circovirosis disease in sows on fertility, prolificacy, productivity, birth weight and weaning in a commercial farm, where the previous practice consisted only in application of the PCV2 vaccine to the piglets. The economic impact of the vaccine application to sows was also evaluated. Fifty five sows were vaccinated and control group was composed by identical number of unvaccinated sows. Vaccination of sows led to increase of the fertility farrowing rates, and number of live-born piglets per litter. However, birth weight was lower in piglets from vaccinated sows than from unvaccinanted sows,leading to the equal litrth weight in both vaccinate and unvaccinated groups. The litter weaning weight did not differ between groups, but the number of weaned piglets increased with vaccination. At the end of the fattening period, the individual weight of the animals did differ between groups. Vaccination led to a reduction in the mortality rate in all production phases. The results show that the vaccination of sows leads to improvements in the reproductive parameters, as well as in production performance of the farm, with consequent economic benefits.

Revista da UI_IPSantarém - Unidade de Investigação do Instituto Politécnico de Santarém, Nov 23, 2015

Pretendeu-se avaliar o efeito da introducao pela primeira vez de uma vacina inativada comercial c... more Pretendeu-se avaliar o efeito da introducao pela primeira vez de uma vacina inativada comercial contra a doenca do circovirus no plano profilatico em porcas reprodutoras, sobre a prolificidade e a mortalidade dos leitoes ao nascimento. O numero de leitoes nascidos vivos no grupo de porcas nao vacinadas foi significativamente inferior ( P = 0,007) ao numero dos leitoes nascidos das porcas vacinadas (13,62 versus 14,95 leitoes). O numero de nados mortos foi menor ( P = 0,002) no grupo de porcas vacinadas comparativamente com o observado no grupo de porcas nao vacinadas (0,53 versus 1,10).

Pretendeu-se avaliar o efeito da introdução pela primeira vez de uma vacina inativada comercial c... more Pretendeu-se avaliar o efeito da introdução pela primeira vez de uma vacina inativada comercial contra a doença do circovírus no plano profilático em porcas reprodutoras, sobre a prolificidade e a mortalidade dos leitões ao nascimento. O número de leitões nascidos vivos no grupo de porcas não vacinadas foi significativamente inferior (P = 0,007) ao número dos leitões nascidos das porcas vacinadas (13,62 versus 14,95 leitões). O número de nados mortos foi menor (P = 0,002) no grupo de porcas vacinadas comparativamente com o observado no grupo de porcas não vacinadas (0,53 versus 1,10).

The etiologic agents of circovirosis is a small virus known as Porcine Circovirus (PCV). The PCV ... more The etiologic agents of circovirosis is a small virus known as Porcine Circovirus (PCV). The PCV is considered a ubiquitous virus that causes disease only in pigs and has been isolated from all continents. This virus is responsible for various affections, being the most common and responsible by major economic losses in the sector, the Postweaning Multisystemic Wasting Syndrome (PMWS). There are several risk factors that predispose animals to manifestation of clinical signs of disease, such as deficiencie management practices, the presence of co-infections, immune status of sows against PCV and immuno-stimulation by different causes. The clinical signs and lesions associated with infection with PCV2 suggest that this is an immunosuppressant/immunomodulating agent. The control and prevention of PCVD involve the minimizing of effect of risk factors and vaccination against PCV2. The present study aimed to evaluate the effect of the application of the vaccine against the circovirosis disease in sows on fertility, prolificacy, productivity, birth weight and weaning in a commercial farm, where the previous practice consisted only in application of the PCV2 vaccine to the piglets. The economic impact of the vaccine application to sows was also evaluated. Fifty five sows were vaccinated and control group was composed by identical number of unvaccinated sows. Vaccination of sows led to increase of the fertility farrowing rates, and number of live-born piglets per litter. However, birth weight was lower in piglets from vaccinated sows than from unvaccinanted sows,leading to the equal litrth weight in both vaccinate and unvaccinated groups. The litter weaning weight did not differ between groups, but the number of weaned piglets increased with vaccination. At the end of the fattening period, the individual weight of the animals did differ between groups. Vaccination led to a reduction in the mortality rate in all production phases. The results show that the vaccination of sows leads to improvements in the reproductive parameters, as well as in production performance of the farm, with consequent economic benefits.