Comportamento e impacto ambiental de antibióticos usados na produção animal brasileira

Regitano, Jussara Borges; Leal, Rafael Marques Pereira

doi:10.1590/s0100-06832010000300002

Cited by 77 publications

(55 citation statements)

References 72 publications

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“…Strains that show this profile should be considered resistant, once the use of this antimicrobial triggers a process of resistant strains selection (CORTEZ et al, 2006 When part of the residual charge of antimicrobials of human and animal use is released directly into surface waters and accumulates in the sediment, they alter the natural ecological balance, triggering an increase in resistant bacteria in the environment (REGITANO; LEAL, 2010). The presence of these compounds in the aquatic environment has drawn attention because it represents a risk to ecosystems, even when found in low concentrations, as antimicrobials are designed to inactivate or destroy microorganisms, having a significant impact on the processes controlled by indigenous biological communities (HUERTA et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

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PROPAGATION OF ANTIMICROBIAL RESISTANT Salmonella spp. IN BIVALVE MOLLUSKS FROM ESTUARY AREAS OF BAHIA, BRAZIL

2016

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-In recent years, the emergence of resistant pathogens has complicated the treatment of bacterial infections in livestock production as well as in the medical field, due to the development of resistance mechanisms by microorganisms. The objective of this study was to delineate the antimicrobial resistance profile of Salmonella spp. strains isolated from bivalve mollusks (oysters and mussels) and from estuarine environment water of two regions of Bahia, Brazil. Twenty-seven strains, 12 isolated from bivalve mollusks and 15 from estuarine water, were tested. Eight antimicrobial agents (phenicol, beta-lactams, tetracyclines, quinolones and fluoroquinolones classes) were used for a susceptibility test, Minimum Inhibitory Concentration (MIC) and extended-spectrum beta-lactamases (ESBLs) production. Isolates showed high susceptibility to the classes of antimicrobial agents tested, with resistance only to nalidixic acid (27%), ampicillin (25%) and tetracycline (25%). Bacterial resistance was of chromosomal origin and the multidrug resistance index (MAR) among isolates of shellfish (mussels in natura) was 0.25. The MIC was found to be 100 µg/mL, 500 µg/mL and 350 µg/mL to nalidixic acid, ampicillin and tetracycline, respectively. None of the isolates presented ESBLs production. The presence of multidrug-resistant and high MIC Salmonella spp. is being conveyed in extraction areas of bivalve mollusks in the State of Bahia, Brazil.

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Section: Resultsmentioning

confidence: 99%

“…The lack of basic sanitation in the municipalities makes this waste reach rivers and estuaries (BILA;DEZOTTI, 2003). Another factor that contributes to this is the agricultural use of effluent or sludge as organic fertilizers, exposing the environmental microbiota to a range of antimicrobials of human and animal use (REGITANO; LEAL, 2010).…”

Section: Resultsmentioning

confidence: 99%

PROPAGATION OF ANTIMICROBIAL RESISTANT Salmonella spp. IN BIVALVE MOLLUSKS FROM ESTUARY AREAS OF BAHIA, BRAZIL

2016

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“…Studies show that pharmaceuticals and their metabolites are present in aquatic environments in many parts of the world including Germany, Brazil, Canada, Holland, England, Italy, Sweden, the United States, the United Kingdom (Bila, Dezotti, 2003;Ikehata et al, 2006;Tambosi, 2008), Spain (Gros et al, 2010), France, Switzerland, Greece (Melo et al, 2009), Japan (Gosh et al, 2009), Austria (Regitano, Leal, 2010), and China (Guinea et al, 2009a).…”

Section: Environmental Occurrencementioning

confidence: 99%

“…Of the quinolones, olaquindox can be considered only slightly persistent (half-life 6 to 9 days), while danofloxacin is very persistent (half-life 87 to 143 days) (Aga, 2008). (Vasconcelos, 2006;Tambosi, 2008;Melo et al, 2009;Gosh et al, 2009;Regitano and Leal, 2010 …”

Section: Wwtp Sludge and Sedimentsmentioning

confidence: 99%

Environmental contamination by fluoroquinolones

Frade

Dias

Teixeira

et al. 2014

Braz. J. Pharm. Sci.

133

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Over the past few decades, a high number of pharmaceuticals have been detected in surface, ground and drinking waters. This contamination comes from domestic sewage, livestock, hospitals and chemicalpharmaceutical industries. Typical examples of these pollutants are the fluoroquinolones -powerful antibiotics used in human and veterinary medicine. The presence of fluoroquinolones in the environment can pose a serious threat to the ecosystem and to human health due to their high consumption globally: in 1998, around 120 tons were produced. Even at low environmental concentrations, antibiotics stimulate bacterial resistance. The consequences of the presence of fluoroquinolones in the environment are not fully understood, but are known to be toxic to plants and aquatic organisms. Approximately 85% of the fluoroquinolones present in influents can be removed by conventional wastewater treatment plants, but the removed fraction is frequently accumulated in the sludge, which is sometimes used as fertilizer, representing an additional input route into the environment. The removal of fluoroquinolones by biological treatment is ineffective, and it is believed that only advanced oxidation technologies are able to destroy these emerging pollutants.Uniterms: Fluoroquinolones/waste/environmental impact. Fluoroquinolones/waste/environmental contamination. Environmental contamination. Advanced oxidation processes/wastewater treatment.Nas últimas décadas, um grande número de fármacos tem sido identificado em águas superficiais, subterrâneas e potáveis. Tal contaminação advém do esgoto doméstico, hospitais, criação de animais e das indústrias químico-farmacêuticas. Exemplos típicos desses poluentes são as fluoroquinolonaspotentes antibióticos empregados na medicina humana e veterinária. A presença de fluoroquinolonas no meio ambiente pode representar uma séria ameaça para o ecossistema e para a saúde humana devido ao alto consumo mundial: em 1998 foram produzidas, aproximadamente, 120 toneladas. Mesmo em baixas concentrações, antibióticos podem estimular a resistência bacteriana. As consequências da presença de fluoroquinolonas no ambiente não são completamente compreendidas, mas sabe-se que são tóxicas para plantas e organismos aquáticos. Aproximadamente 85% das fluoroquinolonas presentes em efluentes podem ser removidos em estações de tratamento de efluentes convencionais, porém a fração removida é frequentemente acumulada no lodo, muitas vezes usado como fertilizante, o que representa uma rota adicional de entrada desses compostos no ambiente. A remoção de fluoroquinolonas por meio de tratamento biológico não é eficiente, e acredita-se que somente as tecnologias de oxidação avançada sejam capazes de degradar esses poluentes emergentes.Uniterms: Fluorquinolonas/resíduos/impacto ambiental. Fluorquinolonas/resíduos/contaminação ambiental. Contaminação ambiental. Processos oxidativos avançados/tratamento de águas residuais.

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“…The eutrophication, the contamination by heavy metals and the residues of antibiotics present in swine excreta (Condé et al, 2012;Regitano & Leal, 2010) are some of the impacts resulting from its inadequate management.…”

Section: Introductionmentioning

confidence: 99%

Swine farm wastewater and mineral fertilization in corn cultivation

Pereira

Sampaio

Reis

et al. 2016

Rev. bras. eng. agríc. ambient.

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A B S T R A C TIn the long run, swine wastewater can provide benefits to the soil-plant relationship, when its use is planned and the potential environmental impacts are monitored. The objective of this study was to investigate the effects of continuous application of swine wastewater, associated with mineral fertilization, after six years of management in no-tillage and crop rotation (14 production cycles), on the chemical conditions of the soil and the corn crop. The doses of wastewater were 0, 100, 200, 300 m 3 ha -1 during the cycle. The effects of the association between mineral fertilization at sowing and swine wastewater were evaluated simultaneously. Swine wastewater at the dose of 100 m 3 ha -1 promoted availability and absorption of P, K + , Mg 2+ and Zn 2+ without causing toxicity to plants or damage to the soil, constituting a viable, low-cost alternative of water reuse and fertilization for farmers. The nutrients N, P, K + and B must be complemented with mineral fertilization. Special attention should be directed to the accumulation of Zn 2+ in the soil along the time of swine wastewater application.Água residuária de suinocultura e adubação mineral no cultivo do milho R E S U M O Em longo prazo a água residuária da suinocultura pode oferecer benefícios à relação solo-planta, quando planejado o uso e monitorados possíveis impactos ambientais. O objetivo do trabalho foi investigar os efeitos da aplicação continuada de água residuária de suinocultura associada com adubação mineral após seis anos de manejo em plantio direto e sucessão de culturas (14 ciclos de produção) acerca das condições químicas do solo e da cultura do milho. As doses de água residuária foram 0, 100, 200, 300 m 3 ha -1 durante o ciclo. Simultaneamente foram avaliados os efeitos da associação de adubação mineral na semeadura com água residuária de suinocultura. A água residuária da suinocultura na dose de 100 m 3 ha -1 proporcionou disponibilidade e absorção de P, K + , Mg 2+ e Zn 2+ sem causar toxicidade às plantas ou danos ao solo constituindo viabilidade de reúso de água e fertilização alternativa de baixo custo ao produtor. Os nutrientes N, P, K + e B devem ser complementados com adubação mineral. Atenção especial deve ser direcionada ao acúmulo de Zn 2+ no solo, ao longo do tempo de aplicação de água residuária da suinocultura.

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Comportamento e impacto ambiental de antibióticos usados na produção animal brasileira

Cited by 77 publications

References 72 publications

PROPAGATION OF ANTIMICROBIAL RESISTANT Salmonella spp. IN BIVALVE MOLLUSKS FROM ESTUARY AREAS OF BAHIA, BRAZIL

PROPAGATION OF ANTIMICROBIAL RESISTANT Salmonella spp. IN BIVALVE MOLLUSKS FROM ESTUARY AREAS OF BAHIA, BRAZIL

Environmental contamination by fluoroquinolones

Swine farm wastewater and mineral fertilization in corn cultivation

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