Vírus da doença de Newcastle em aves não vacinadas no Estado do Rio de Janeiro

Oliveira, Jorge Granja de; Portz, Cristiana; Loureiro, Bernardo Oliveira; Schiavo, Paula Amorin; Fedullo, Luiz P.; Mazur, Carlos; Andrade, Cristina T.

doi:10.1590/s0103-84782003000200033

Cited by 7 publications

(2 citation statements)

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“…culture ( Supplementary Table 4 ) results corroborated a tendency we observed earlier ( 27 ). Comparable results have been reported in NDV serological surveys involving captive ( 67 ) and free-living wild birds ( 68 ). While previous studies have estimated the prevalence of Salmonella spp.…”

Section: Discussionsupporting

confidence: 65%

Rehabilitation and release of confiscated songbirds into the wild: A pilot study

et al. 2023

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Songbirds are currently the most prevalent animals in illegal trafficking in Brazil and other countries, so they are often confiscated, and this poses legal, ethical, and conservation challenges. Returning them to nature requires complex and expensive management, a topic that is sparingly addressed in the literature. Here, we described the processes and costs associated with an attempt to rehabilitate and release confiscated songbirds into the wild. A total of 1,721 songbirds of several species were quarantined, rehabilitated, and released, primarily on two farms located within their typical geographical distribution. Health assessments were performed on samples from 370 birds. Serology revealed no antibodies against Newcastle disease, and Salmonella spp. cultures were negative. Real-time polymerase chain reactions detected M. gallisepticum in samples from seven birds. Atoxoplasma spp. and Acuaria spp. infections, sepsis, and trauma were the top causes of bird death. About 6% of the released birds were recaptured, within an average period of 249 days after release, and at a mean distance of 2,397 meters from the release sites. The majority of these birds were found with free-living mates within or close to fragments of transitional ecoregions with native or cultivated grasslands, and native groves/forests, and shrublands. However, eucalyptus plantations with rich understory regeneration provided a suitable environment for the released forest species to settle, since they were recaptured during the defense of these sites. Over half of the recaptured birds presented behavioral profiles with both dominant and tame traits. Birds with dominant traits are more likely to settle in habitats and face the live decoys during fieldwork, whereas birds with tame characteristics tend to accept close contact with humans. Ultramarine grosbeak (Cyanoloxia brissonii), the least common species among those released, at the release sites showed an almost 2-fold recapture rate in the shortest mean distances from the release sites. This suggests less territory competition, perhaps a major factor of bird re-establishment here. The total per-bird cost was USD 57. Our findings suggested suitable survival and re-establishment of confiscated songbirds in the wild, when managed as we describe.

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Section: Discussionsupporting

confidence: 65%

Rehabilitation and release of confiscated songbirds into the wild: A pilot study

et al. 2023

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“…All samples tested for the presence of anti-NDV antibodies were negative in this study. Comparable results have been divulgated in NDV serological surveys in seized Passeriformes, even though positive results have been observed in other avian orders [61]. Monitoring free-ranging wild birds have shown the same tendency [62].…”

Section: Discussionmentioning

confidence: 99%

Assessment of Potential Health and Genetic Impacts in Releasing ConfiscatedParoaria coronataandSaltator similis

Cruz

Fünkler

Zani

et al. 2020

Preprint

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Illegal capture and trade of wild birds has long been a threat to biodiversity. Translocation—the release of individuals from one location into another—is a useful conservation tool in the management of species. However, both health (such as different pathogens) and adaptive (such as local adaptation), differences among populations must be taken into account, as both can impact the recipient population negatively. Here, we provide health and genetic information to support release planning for two of the most trafficked Brazilian wild bird species (Paroaria coronata and Saltator similis). We focused on two fundamental questions: Are there significant differences in pathogen load between wild and captive populations? Is there significant genetic structure among populations? In total, 223 free-living birds were captured, sampled, and released at the same site. Devices and live decoys characteristics were top factors influencing captures. We tested blood, feces, and oropharyngeal swabs from free-ranging (n=101) and confiscated (n=92) birds for Newcastle disease virus, Salmonella spp., and Mycoplasma gallisepticum. Genetic structure among populations was investigated using mtDNA in a subsample of these birds. We found no evidence for Newcastle disease virus and Salmonella spp. in seized and free-living birds from both species. However, seized P. coronata and S. similis may be potential sources of M. gallisepticum. We found significant but low genetic structure among populations occurring in different Biomes (ΦCT=0.26 for P. coronata; ΦCT=0.13 for S. similis) and no significant structure among populations occurring in the Pampa Biome. These results suggest that while it may be important to screen seized birds for avian pathogens, genetic structure among populations seems to be of lesser concern when planning the release of seized songbirds in the wild.

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Molecular and phylogenetic characterization based on the complete genome of a virulent pathotype of Newcastle disease virus isolated in the 1970s in Brazil

Fernandes

Varani

Lemos

et al. 2014

Infection, Genetics and Evolution

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Newcastle disease (ND) is caused by the avian paramyxovirus type 1 (APMV-1) or Newcastle disease virus (NDV) that comprises a diverse group of viruses with a single-stranded, negative-sense RNA genome. ND is one of the most important diseases of chickens, because it severely affects poultry production worldwide. In the 1970s, outbreaks of virulent ND were recorded in Brazil, and the strain APMV-1/Chicken/Brazil/SJM/75 (SJM) of NDV was isolated. This strain was characterized as highly pathogenic for chickens but not pathogenic for other bird species. Here we present the complete genome of NDV strain SJM and investigate the phylogenetic relationships of this virus with other NDV strains in terms of genome and proteins composition, as well as characterizing its evolution process. The NDV strain SJM is categorized as a velogenic virus and the complete genome is 15,192 nucleotides in length, consisting of six genes in the order 3'-NP-P-M-F-HN-L-5'. The presence of the major pathogenic determinant of NDV strains ((112)R-R-Q-K-R↓F(117)) was identified in the Fusion protein of the NDV strain SJM. In addition, phylogenetic analysis classified the NDV strain SJM as a member of class II, genotype V, and indicates that this virus help us in the understanding of the evolutionary process of strains belonging to this genotype. This study contributes to the growing interest involving the characterization of NDV isolates to improve our current understanding about the epidemiology, surveillance and evolution of the pathogenic strains.

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Vírus da doença de Newcastle em aves não vacinadas no Estado do Rio de Janeiro

Cited by 7 publications

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Rehabilitation and release of confiscated songbirds into the wild: A pilot study

Rehabilitation and release of confiscated songbirds into the wild: A pilot study

Assessment of Potential Health and Genetic Impacts in Releasing ConfiscatedParoaria coronataandSaltator similis

Molecular and phylogenetic characterization based on the complete genome of a virulent pathotype of Newcastle disease virus isolated in the 1970s in Brazil

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