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Registro Completo |
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Biblioteca(s): |
Embrapa Acre; Embrapa Agropecuária Oeste; Embrapa Algodão; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Hortaliças; Embrapa Meio Ambiente; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Rondônia; Embrapa Semiárido; Embrapa Trigo. MenosEmbrapa Acre; Embrapa Agropecuária Oeste; Embrapa Algodão; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Hortaliças; Embrapa Meio Ambiente; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Rondônia... Mostrar Todas |
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Data corrente: |
10/05/1993 |
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Data da última atualização: |
08/11/2001 |
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Autoria: |
DEKKER, J.; GEORGOPOULOS, S. G. (ed.). |
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Título: |
Fungicide resistance in crop protection. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Wageningen: Pudoc, 1982. |
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Páginas: |
265 p. |
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ISBN: |
90 220 0797 9 |
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Idioma: |
Inglês |
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Conteúdo: |
Introduction; Chemical control of fungal diseases: importance and problems; Socio-economic impact of fungicide resistance; Detection and measurement of fungicide resistance; Mechanism of action of fungicides (A. Kaars Sijpesteijn); Genetical and biochemical background of fungicide resistance; Cross-resistance; Benzimidazole compounds: selectivity and resistance; Resistance to ergosterol-biosynthesis inhibitors. I. Chemistry and phenomenological aspects; Resistance to ergosterol-biosynthesis inhibitors. II. Genetic and physiological aspects; Resistance to the dicarboximide fungicides; Acylalanines: resistance in downy mildews, pythium and phytophthora spp; Can we estimate the fungicide-resistance hazard in the field from laboratory and greenhouse tests?; Dynamics of the pathogen population in relation to fungicide resistance; Can we use models describing the population dynamics of fungicide-resistant strains?; Fungicide resistance and microbial balance; Countermeasures for avoiding fungicide resistance; Case study 1: cercospora beticola of sugar-beets; Case stydy 2: venturia of pome fruits and monilinia of stone fruits; Case study 3: Pyricularia oryzae of rice; Case stydy 4: powdery mildews of barley and cucumber; Case stydy 5: penicillium decay of citrus fruits; Participants of the 1980 and 1981 international post-graduate courses on fungicide resistance in crop protection; Sposors; Index. |
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Palavras-Chave: |
Acao; Agricola; Control; Controle; Defensive agricultural; Defensivo Agrícola; Diseases; Fungal diseases; Fungicide; Fungus; Nematicide; Plant; Plants; Protecao; Resistance. |
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Thesagro: |
Defensivo; Doença; Doença Fúngica; Fungicida; Fungo; Nematicida; Planta; Resistência. |
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Thesaurus Nal: |
fungi; fungicides. |
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Categoria do assunto: |
--
F Plantas e Produtos de Origem Vegetal
H Saúde e Patologia |
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Marc: |
LEADER 02423nam a2200445 a 4500
001 1208986
005 2001-11-08
008 1982 bl uuuu 00u1 u #d
020 $a90 220 0797 9
100 1 $aDEKKER, J.
245 $aFungicide resistance in crop protection.
260 $aWageningen: Pudoc$c1982
300 $a265 p.
520 $aIntroduction; Chemical control of fungal diseases: importance and problems; Socio-economic impact of fungicide resistance; Detection and measurement of fungicide resistance; Mechanism of action of fungicides (A. Kaars Sijpesteijn); Genetical and biochemical background of fungicide resistance; Cross-resistance; Benzimidazole compounds: selectivity and resistance; Resistance to ergosterol-biosynthesis inhibitors. I. Chemistry and phenomenological aspects; Resistance to ergosterol-biosynthesis inhibitors. II. Genetic and physiological aspects; Resistance to the dicarboximide fungicides; Acylalanines: resistance in downy mildews, pythium and phytophthora spp; Can we estimate the fungicide-resistance hazard in the field from laboratory and greenhouse tests?; Dynamics of the pathogen population in relation to fungicide resistance; Can we use models describing the population dynamics of fungicide-resistant strains?; Fungicide resistance and microbial balance; Countermeasures for avoiding fungicide resistance; Case study 1: cercospora beticola of sugar-beets; Case stydy 2: venturia of pome fruits and monilinia of stone fruits; Case study 3: Pyricularia oryzae of rice; Case stydy 4: powdery mildews of barley and cucumber; Case stydy 5: penicillium decay of citrus fruits; Participants of the 1980 and 1981 international post-graduate courses on fungicide resistance in crop protection; Sposors; Index.
650 $afungi
650 $afungicides
650 $aDefensivo
650 $aDoença
650 $aDoença Fúngica
650 $aFungicida
650 $aFungo
650 $aNematicida
650 $aPlanta
650 $aResistência
653 $aAcao
653 $aAgricola
653 $aControl
653 $aControle
653 $aDefensive agricultural
653 $aDefensivo Agrícola
653 $aDiseases
653 $aFungal diseases
653 $aFungicide
653 $aFungus
653 $aNematicide
653 $aPlant
653 $aPlants
653 $aProtecao
653 $aResistance
700 1 $aGEORGOPOULOS, S. G.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
10/12/2021 |
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Data da última atualização: |
10/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
LIMA, A. M. C.; ALVES, F. S. F.; PINHEIRO, R. R.; ALVES, S. M.; FARIAS, D. A. de; ANDRIOLI, A.; ELOY, A. M. X.; SANTOS, M. D. dos; CARDOSO, J. de F. S.; PAULA, N. R. de O. |
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Afiliação: |
ANA MILENA CÉSAR LIMA, Federal University of Piauí (UFPI), Teresina, PI, Brazil; FRANCISCO SELMO FERNANDES ALVES, CNPC; RAYMUNDO RIZALDO PINHEIRO, CNPC; SAMILLY MESQUITA ALVES, Federal University of Ceará (UFC) - Fortaleza, CE, Brazil; DANIELE ALVES DE FARIAS, Technological Education Center Institute (CENTEC) - Granja, CE, Brazil; ALICE ANDRIOLI PINHEIRO, CNPC; ANGELA MARIA XAVIER ELOY, CNPC; MARIA DALILA DOS SANTOS, University Center Inta (UNINTA) - Sobral, CE, Brazil; JANAINA DE FATIMA SARAIVA CARDOSO; NEY RÔMULO DE OLIVEIRA PAULA. |
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Título: |
Risk factors associated with seroprevalence of Chlamydia abortus in sheep farms in Ceará, Brazil. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Acta Scientiae Veterinariae, v. 49, pub 1784, 2021. |
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DOI: |
https://doi.org/10.22456/1679-9216.108045 |
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Idioma: |
Inglês |
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Conteúdo: |
Background: Chlamydia abortus infections (Chlamydiosis) can cause reproductive problems in sheep, such as abortions and birth defects, leading to farm productivity loss. The symptoms, which are similar to other reproductive diseases, and the microbial pathogenesis make the clinical diagnosis difficult. Chlamydia abortus is a zoonotic pathogen, making it a public health issue because it can infect and induce abortions in humans. This study investigated anti-C. abortus antibody levels and infection risk factors in sheep in the State of Ceará, Brazil. Materials, Methods & Results: Forty-three properties from 10 municipalities in 4 mesoregions in the State of Ceará, Brazil (Sertões, metropolitan Fortaleza, North Ceará and Northwest Ceará) with sheep, goats, cattle, and horses were visited. Five hundred and four serological samples from sheep were collected and tested for anti-C. abortus antibodies using an Enzyme-linked Immunosorbent Assay (ELISA) [IDEXX®, Australia] and all procedures were performed in accordance with the manufacturer's instructions at the Clinical Pathology Laboratory of EMBRAPA Goats and Sheep (Sobral, Brazil). Individual questionnaires were completed about sheep breeding practices and to identify possible C. abortus risks. Seropositive results were found in 18.45 % (93/504 individuals) of sheep, and 88.37 % (38/43 properties) of the herds had at least one seropositive animal. The number of seropositive individuals was significantly different between adults and ewes [P < 0.01; Odds Ratio (OR) = 0.510; 95% confidence interval (CI) = 0.306 - 0.850]. Logistic regression modeling identified a missing health certificate request for newly acquired animals as a chlamydiosis risk factor [P = 0.038; OR = 2.672; 95% CI = 1.058 - 6.749]. Discussion: The prevalence of anti-C. abortus antibodies in sheep in the State of Ceara emphasizes the importance of testing and tracking the disease spread among herds; these results were similar to studies in other areas of Brazil. Adult sheep that spend more time on the property may have a higher exposure risk because of increased reproductive activity. Misinformation and technical limitations can influence the proper handling of animals avoiding contagion through the correct use of techniques and recommendations. Disease transmission occurs through the digestive tract and between mother and fetus. Therefore, seropositive (infected) sheep may be related to the breeding system practices, such as allowing contact between sheep and other species on the property (goats, cattle, and horses) during breeding. Acquiring animals from external sources without sufficient health information can increase the transmission risk. Contaminated pastures, water, food, and air also increase transmission risk. The lack of technical and practical knowledge regarding disease prevention and control also contributes to disease transmission, resulting in reproductive losses due to high abortion rates. Chlamydia abortus has zoonotic potential and may infect humans without proper safety information. Therefore, future epidemiological studies are required for a better understanding of the primary risk factors for disease occurrence and spread among herds in the region. Chlamydia abortus infection is present in sheep in Ceará, Brazil. Chlamydiosis information programs should be adopted, sanitary measures implemented, and the epidemiological surveillance of sheep herds strengthened. MenosBackground: Chlamydia abortus infections (Chlamydiosis) can cause reproductive problems in sheep, such as abortions and birth defects, leading to farm productivity loss. The symptoms, which are similar to other reproductive diseases, and the microbial pathogenesis make the clinical diagnosis difficult. Chlamydia abortus is a zoonotic pathogen, making it a public health issue because it can infect and induce abortions in humans. This study investigated anti-C. abortus antibody levels and infection risk factors in sheep in the State of Ceará, Brazil. Materials, Methods & Results: Forty-three properties from 10 municipalities in 4 mesoregions in the State of Ceará, Brazil (Sertões, metropolitan Fortaleza, North Ceará and Northwest Ceará) with sheep, goats, cattle, and horses were visited. Five hundred and four serological samples from sheep were collected and tested for anti-C. abortus antibodies using an Enzyme-linked Immunosorbent Assay (ELISA) [IDEXX®, Australia] and all procedures were performed in accordance with the manufacturer's instructions at the Clinical Pathology Laboratory of EMBRAPA Goats and Sheep (Sobral, Brazil). Individual questionnaires were completed about sheep breeding practices and to identify possible C. abortus risks. Seropositive results were found in 18.45 % (93/504 individuals) of sheep, and 88.37 % (38/43 properties) of the herds had at least one seropositive animal. The number of seropositive individuals was significantly different between adults a... Mostrar Tudo |
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Palavras-Chave: |
Chlamydia abortus. |
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Thesaurus NAL: |
Abortion (animals); Bacterial infections; Brazil; Chlamydiosis; Chlamydophila abortus; Epidemiology; Reproductive disorders; Semiarid zones; Serology; Sheep diseases; Small ruminants. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/228896/1/CNPC-2021-Art-95.pdf
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Marc: |
LEADER 04599naa a2200385 a 4500
001 2137492
005 2021-12-10
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.22456/1679-9216.108045$2DOI
100 1 $aLIMA, A. M. C.
245 $aRisk factors associated with seroprevalence of Chlamydia abortus in sheep farms in Ceará, Brazil.$h[electronic resource]
260 $c2021
520 $aBackground: Chlamydia abortus infections (Chlamydiosis) can cause reproductive problems in sheep, such as abortions and birth defects, leading to farm productivity loss. The symptoms, which are similar to other reproductive diseases, and the microbial pathogenesis make the clinical diagnosis difficult. Chlamydia abortus is a zoonotic pathogen, making it a public health issue because it can infect and induce abortions in humans. This study investigated anti-C. abortus antibody levels and infection risk factors in sheep in the State of Ceará, Brazil. Materials, Methods & Results: Forty-three properties from 10 municipalities in 4 mesoregions in the State of Ceará, Brazil (Sertões, metropolitan Fortaleza, North Ceará and Northwest Ceará) with sheep, goats, cattle, and horses were visited. Five hundred and four serological samples from sheep were collected and tested for anti-C. abortus antibodies using an Enzyme-linked Immunosorbent Assay (ELISA) [IDEXX®, Australia] and all procedures were performed in accordance with the manufacturer's instructions at the Clinical Pathology Laboratory of EMBRAPA Goats and Sheep (Sobral, Brazil). Individual questionnaires were completed about sheep breeding practices and to identify possible C. abortus risks. Seropositive results were found in 18.45 % (93/504 individuals) of sheep, and 88.37 % (38/43 properties) of the herds had at least one seropositive animal. The number of seropositive individuals was significantly different between adults and ewes [P < 0.01; Odds Ratio (OR) = 0.510; 95% confidence interval (CI) = 0.306 - 0.850]. Logistic regression modeling identified a missing health certificate request for newly acquired animals as a chlamydiosis risk factor [P = 0.038; OR = 2.672; 95% CI = 1.058 - 6.749]. Discussion: The prevalence of anti-C. abortus antibodies in sheep in the State of Ceara emphasizes the importance of testing and tracking the disease spread among herds; these results were similar to studies in other areas of Brazil. Adult sheep that spend more time on the property may have a higher exposure risk because of increased reproductive activity. Misinformation and technical limitations can influence the proper handling of animals avoiding contagion through the correct use of techniques and recommendations. Disease transmission occurs through the digestive tract and between mother and fetus. Therefore, seropositive (infected) sheep may be related to the breeding system practices, such as allowing contact between sheep and other species on the property (goats, cattle, and horses) during breeding. Acquiring animals from external sources without sufficient health information can increase the transmission risk. Contaminated pastures, water, food, and air also increase transmission risk. The lack of technical and practical knowledge regarding disease prevention and control also contributes to disease transmission, resulting in reproductive losses due to high abortion rates. Chlamydia abortus has zoonotic potential and may infect humans without proper safety information. Therefore, future epidemiological studies are required for a better understanding of the primary risk factors for disease occurrence and spread among herds in the region. Chlamydia abortus infection is present in sheep in Ceará, Brazil. Chlamydiosis information programs should be adopted, sanitary measures implemented, and the epidemiological surveillance of sheep herds strengthened.
650 $aAbortion (animals)
650 $aBacterial infections
650 $aBrazil
650 $aChlamydiosis
650 $aChlamydophila abortus
650 $aEpidemiology
650 $aReproductive disorders
650 $aSemiarid zones
650 $aSerology
650 $aSheep diseases
650 $aSmall ruminants
653 $aChlamydia abortus
700 1 $aALVES, F. S. F.
700 1 $aPINHEIRO, R. R.
700 1 $aALVES, S. M.
700 1 $aFARIAS, D. A. de
700 1 $aANDRIOLI, A.
700 1 $aELOY, A. M. X.
700 1 $aSANTOS, M. D. dos
700 1 $aCARDOSO, J. de F. S.
700 1 $aPAULA, N. R. de O.
773 $tActa Scientiae Veterinariae$gv. 49, pub 1784, 2021.
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Embrapa Caprinos e Ovinos (CNPC) |
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