Effects of vaccination against reproductive diseases on reproductive performance of lactating dairy cows submitted to AI

Pereira, M. H. C.; Cooke, Reinaldo F; Alfieri, Amauri Alcindo; Vasconcelos, José Luiz Moraes

doi:10.1016/j.anireprosci.2012.12.011

Cited by 31 publications

(32 citation statements)

References 21 publications

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“…The percentages of observed titers (49.41%, 81.30% and 90% respectively) consistent with active infection. High rates of these infections in cattle herds in Brazil are described by other authors (Junqueira et al 2006, Aono et al 2013, Pereira et al 2013) ( Table 2). The studies of the three previously cited authors used the same cutoff point of this study for serological reactions, however herds or sample had different characteristics.…”

Section: Discussionmentioning

confidence: 65%

“…The lack of effect of immunization can be explained by experimental design, which included only multiparous cows, which are exposed to different infectious agents for a longer period of time and therefore possess title protective antibodies or immune larger memory compared to gilts. As previously mentioned active infection and vaccination induces similar titers (Pereira et al 2013).…”

Section: Discussionmentioning

confidence: 66%

“…Junqueira et al (2006) evaluated a herd of beef cattle in São Paulo state, where the reproductive management consisted of artificial insemination and re-mating with bull and found the following prevalence rates: 81.8% for BoHV-1, 98.9% for BVDV and 79.5% for Leptospira sp. In a herd of unvaccinated Girolando cows (n=84), Pereira et al (2013) found seropositivity rates of 100%, 52.4%, and 45.2% for BoHV-1, BVDV and leptospirosis, respectively. For vaccinated cows (n=62) for BoHV-1 (one dose), BVDV (one dose), and leptospirosis (three doses) these rates were 98.0%, 49.0%, and 43.0%, respectively, indicating that active infection and vaccination yielded similar titers.…”

Section: Discussionmentioning

confidence: 94%

“…On D0, blood was sampled from 57 cows randomly selected from each group, and tested for agglutination (leptospirosis) and neutralization (BoHV-1 and BVDV) 9 . Cut-off points for positive serology were >100 for leptospirosis, >8 for BoHV-1, and >16 for BVDV (Aono et al 2013, Pereira et al 2013.…”

Section: Methodsmentioning

confidence: 99%

“…Losses caused by embryonic or fetal death have a considerable impact on fertility rates in beef cattle production systems (Santos et al 2004, Junqueira et al 2006, Aono et al 2013, Pereira et al 2013. In most cases, the causes of these losses remain undetermined (Corbellini et al 2006, Antoniassi et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Impact of vaccination on the reproductive performance of multiparous Nellore cows

Ferreira¹,

Fernandes

Silva

et al. 2018

Pesq. Vet. Bras.

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Two experiments were conducted to evaluate the impact of two vaccines on the reproductive performance of multiparous beef cows in Mato Grosso do Sul, Midwest Brazil. In Experiment 1,765 calved multiparous Nellore cows were subjected to the same fixed-time artificial insemination (FTAI) protocol and rebred. Ultrasound pregnancy diagnosis was performed 30 and 90 days post-FTAI (DPI). Rates of pregnancy and pregnancy loss were determined for three periods: from 30 to 90 DPI, from 30 DPI to calving, and from 90 DPI to calving. The cows were assigned to three groups with different vaccination protocols - namely, Group VACMULT (n=250): vaccine against bovine herpesvirus 1 (BoHV-1), bovine viral diarrhea virus (BVDV), and leptospirosis; Group VACL (n=245): vaccine against leptospirosis alone; Group NOVAC (n=270): no vaccination. Serum antibody titers for BoHV-1, BVDV, and leptospirosis, measured in 57 cows from each group indicated active infection, suggesting circulation of these pathogens in the herd. No differences in pregnancy rates were observed across groups. Pregnancy loss rates did not differ significantly across groups within any of the periods investigated (30 to 90 DPI, 30 DPI to calving, or 90 DPI to calving). In Experiment 2, two vaccination protocols for each vaccine were investigated. Group VACGEST was vaccinated on day zero of FTAI (D0) and again 30 days post-FTAI (30 DPI). Group VACPREV was vaccinated on D0 and again on the day of insemination (D11). No significant difference was observed between groups, or significant gestational loss in the group that received the second vaccine on the day of insemination. The results revealed that neither vaccine interfered with the reproductive performance of multiparous cows. No differences were observed between vaccination carried out on both D0 and D11 and that performed on both D0 and D30. The performance of the IBR/BVDV/Leptospirosis vaccine on the day of the artificial insemination did not cause adverse effects on the reproductive parameters.

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Section: Discussionmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 66%

Section: Discussionmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Impact of vaccination on the reproductive performance of multiparous Nellore cows

Ferreira¹,

Fernandes

Silva

et al. 2018

Pesq. Vet. Bras.

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Leptospirosis is strongly associated to estrus repetition on cattle

Libonati

Santos

Souza

et al. 2018

Trop Anim Health Prod

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Although prevalent, the exact impact of infectious diseases on reproductive failures remains to be determined. Among them, leptospirosis has commonly been reported as cause of abortions on outbreaks. Nevertheless, the majority of the animals present a chronic, silent form of the disease, which is characterized by low reproductive efficiency and is frequently neglected. In that context, we conducted a study that aims to estimate the impact of chronic leptospirosis on reproductive disorders on cattle. A total of 25 different dairy herds with history of reproductive losses from Rio de Janeiro, Brazil, were selected. From each herd, a questionnaire was applied and sera from 20 cows were randomly tested for leptospirosis (totaling 500 cows). Chi-square was performed to estimate the association of seroreactivity with reproductive disorders. A total of 32% of the herds were positive, all of them against serogroup Sejroe. Estrus repetition was the most important reported reproductive problem and it was strongly associated to seroreactivity against leptospirosis. Besides, specific vaccination against leptospirosis was an important protection factor against that disorder. In conclusion, control programs including, but not limited to, vaccines must be implemented on those herds in order to reduce reproductive losses, particularly estrus repetition.

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Pregnancy losses in Bos indicus-influenced beef and dairy recipients assigned to a fixed-time embryo transfer protocol

Munhoz,

Cooke,

Munhoz

et al. 2024

Animal Reproduction Science

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Effects of vaccination against reproductive diseases on reproductive performance of lactating dairy cows submitted to AI

Cited by 31 publications

References 21 publications

Impact of vaccination on the reproductive performance of multiparous Nellore cows

Impact of vaccination on the reproductive performance of multiparous Nellore cows

Leptospirosis is strongly associated to estrus repetition on cattle

Pregnancy losses in Bos indicus-influenced beef and dairy recipients assigned to a fixed-time embryo transfer protocol

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