Estudo da ocorrência de salmonelas em ingredientes, rações e suabes de pó colhidos em uma fábrica industrial de ração

Albuquerque, Ricardo de; Ito, Nair Massako Katayama; Miyaji, Claudio Issamu

doi:10.1590/s1413-95961999000600008

Cited by 4 publications

(3 citation statements)

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“…The incidence of salmonella in feed ingredients and rations in a feed meal plant was studied by Albuquerque et al (1995), who verified the occurrence of Salmonella in 19.85% of the feed ingredient samples (136 samples). Among those samples, animal ingredients and vegetable products showed 50% and 12.5% contamination, respectively.…”

Section: Introductionmentioning

confidence: 99%

Mixture of formic and propionic acid as additives in broiler feeds

Vale

Menten²,

Morais³

et al. 2004

Sci. agric. (Piracicaba, Braz.)

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The presence of Salmonella species in feeds and ingredients is an important source of salmonella contamination for animals. Organic acid mixtures have shown to be an effective alternative to eliminate salmonellas in feeds and chickens. In the present study, the performance of male broiler chickens receiving levels (0, 0.25, 0.50, 1.0 and 2.0%) of a mixture of organic acids (OAs) (70% formic acid and 30% propionic acid) in the diet was evaluated from the age one to 42 days, in a completely randomized experimental design with five treatments and five replications of 40 birds each. Diets were based on corn, soybean meal and soybean oil. Body weight, weight gain and feed intake from the age one to 21 days were affected by the treatments; 2% OAs in the diet reduced body weight and weight gain. Feed intake increased with concentrations of 0.25 and 0.5% and was reduced with 2% of OAs. From the age one to 42 days, only feed intake was affected, showing a quadratic effect, increasing at the levels of 0.25 and 0.5% and decreasing at 2% of OAs. The mixture of OAs at doses which are effective for the control of salmonella did not affect chicken performance, and the inclusion of 1% OAs in the diet resulted in a performance similar to that of untreated birds. Key words: Salmonella, chicken, organic acids, food safety MISTURA DOS ÁCIDOS ORGÂNICOS FÓRMICO E PROPIÔNICO EM RAÇÕES PARA FRANGOS DE CORTERESUMO: A presença de espécies de Salmonella em ingredientes e rações é importante fonte de contaminação dos animais. Entre as medidas visando a eliminação das salmonelas das rações e de frangos, misturas de ácidos orgânicos mostraram-se eficientes. Neste estudo, foi avaliado o desempenho de frangos de corte machos de um a 42 dias de idade recebendo níveis (0, 0,25, 0,50, 1,0 e 2,0%) da mistura dos ácidos orgânicos (AOs) fórmico (70%) e propiônico (30%) na ração. O delineamento foi inteiramente ao acaso com cinco tratamentos e cinco repetições de 40 aves. As rações foram baseadas em milho, farelo de soja e óleo de soja e adequadas em todos os nutrientes. De um a 21 dias de idade foram afetados de forma quadrática o peso vivo, o ganho de peso e o consumo de ração. Com 2% de AOs na ração foram reduzidos o peso vivo e o ganho de peso dos frangos. O consumo de ração aumentou com 0,25 e 0,5% e foi reduzido com 2% dos AOs. De um a 42 dias de idade, apenas o consumo de ração foi afetado de forma quadrática, sendo aumentado nos níveis de 0,25 e 0,5% e reduzido com 2% de AOs. A mistura dos AOs em dosagens efetivas no controle de salmonelas não afetou o desempenho das aves, sendo que o nível de 1% de inclusão proporcionou desempenho similar ao das aves não tratadas. Palavras-chave: Salmonella, frangos de corte, desempenho, segurança dos alimentos

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Section: Introductionmentioning

confidence: 99%

Mixture of formic and propionic acid as additives in broiler feeds

Vale

Menten²,

Morais³

et al. 2004

Sci. agric. (Piracicaba, Braz.)

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“…detection in feed samples. Animal meal is the main source of contamination (Albuquerque et al 1999, Morita et al 2006, Tacon &Metian 2008.…”

Section: Resultsmentioning

confidence: 99%

Phenotypic and molecular detection of Salmonella sp. on growing, rearing and production phases in a commercial group of laying hens

et al. 2016

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This present study was developed with the objective of detect Salmonella sp. by conventional bacteriology and qPCR techniques in samples of flooring material from transport crates (meconium); raising environment (swab of cages and drinking fountains); cloacal swab; food and insects from growing, rearing and production phases in a commercial group of laying hens. A total of 864 samples were collected, among whom 248 originated from growing, 392 from rearing and 224 from production phase. Among the 864 samples, 2,8% where positives in bacteriologic technique and 15.3% in qPCR. Contamination was higher in growing and rearing phases and declined in production phase. Twenty four isolations of Salmonella where typified as Salmonella Agona (41.7%), Salmonella Livingstone (33.3%), Salmonella Cerro (16.7%), Salmonella Senftenberg (4.2%) and Salmonella Schwarzengrund (4.2%). During growing phase Salmonella Livingstone was identified. These findings suggest vertical contamination in the group. During rearing and production phases, isolated materials belong to serovars Agona, Cerro, Senftenberg and Schwarzengrund, pointing to horizontal contamination. It is possible to conclude that both vertical and horizontal contaminations are important during the cycle of commercial egg production and contamination in rearing phase is higher than in growing and production phases.

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“…Diversos trabalhos na literatura têm relatado a presença de bactérias patogênicas na ração, matérias primas utilizadas na fabricação da mesma e na água de dessedentação (GAMA, 2005;VALIAS & SILVA, 2001;SANTOS et al, 2000;ALBUQUERQUE et al, 1999;BERCHIERI et al, 1989), porém não são encontrados dados referentes a contaminação dessas fontes por Clostridium perfringens.…”

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