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Registros recuperados: 14
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Age influence on quality of shell and penetration in bacterial laying lightweight eggs Arq. Bras. Med. Vet. Zootec.
Smaniotto,B.D.; Amarante,A.F.; Altarugio,R.; Silva,I.G.O.; Corrêa,I.M.O.; Pereira,L.Q.; Sartori,M.M.P.; Andreatti Filho,R.L.; Guimarães-Okamoto,P.T.C.; Okamoto,A.S..
ABSTRACT This study evaluated the influence of the bird’s age on the quality of the shell and percentage of bacterial penetration in commercial eggs. White-shelled commercial eggs were used, laid by light laying hens in their first laying cycle at 21, 39, 51, and 62 weeks of age. Shell quality evaluations comprised: egg weight, specific gravity, percentage and thickness of shell, number and size of pores. For evaluations regarding bacterial penetration, strains of several enterobacterias and one salmonella were used, all of which resistant to Nalidixic acid (100µg/ml). The method employed for evaluation of bacterial penetration was filling the eggs with growth medium. The data were subjected to variance analysis with 5% of probability using SAS (Education...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Poultry; Bacterial contamination; Eggs; Enterobacteria.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000501301
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Enterobacteria isolation in ostrich eggs (Struthio Camelus) Rev. Bras. Ciênc. Avic.
Knöbl,T; Cappellete,CP; Vigilato,MAN.
This study was conducted to determine the presence of enterobacteria in the eggs of ostriches reared on a farm with a history of reproductive failure. Ninety samples from twenty eggs were submitted to bacteriological tests. The results showed Enterobacteria growth in 100% of the eggs. The microorganisms isolated were Hafnia alvei in 50% (10/20), Serratia spp. in 20% (4/20), Escherichia coli in 15% (3/20), and Citrobacter freundii in 15% (3/20). All eggs presented poor eggshell quality, which favored enterobacteria contamination. Hafnia alvei was present only in the internal egg structures (albumen and yolk sac), suggesting the possibility of vertical infection.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enterobacteria; Hafnia alvei; Ostriches; Reproduction; Struthio camelus.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000100006
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Enumeration, antimicrobial resistance and typing of salmonella enterica: profile of strains carried in the intestinal contents of pigs at slaughter in southern Brazil. Repositório Alice
PAIM, D. S.; PISSETTI, C.; VIEIRA, T. R.; WERLANG, G. O.; COSTA, E. de F.; KICH, J. D.; CARDOSO, M. R. de I..
ABSTRACT: Background: Despite a strong association between Salmonella isolation and slaughter hygiene, as measured by the Enterobacteriaceae levels on pre-chill carcass surfaces, a high variation in this association was observed between sampling days within the same slaughterhouse. It was hypothesised that in a scenario of high exposure on the farm, batches with a high prevalence of carrier pigs shedding a high number of Salmonella may enhance the risk of contamination on some slaughter days. Thus, the aim of this study was to assess the profile of Salmonella carried in the intestinal contents of slaughter pigs. Materials, Methods & Results: Ten pig batches slaughtered in a slaughterhouse were investigated for the presence of Salmonella. From each pig,...
Tipo: Artigo de periódico Palavras-chave: Salmonella Typhimurium monophasic variant; Faecal excretion; Enterobacteria; Total aerobic mesophilic bacteria; MCR-1 gene; Whole genome sequencing; Suíno; Salmonella; Swine; Salmonella enterica.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1113682
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Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights R. Bras. Zootec.
Pinho,Ricardo Martins Araujo; Santos,Edson Mauro; Carvalho,Gleidson Giordano Pinto de; Silva,Ana Paula Gomes da; Silva,Thiago Carvalho da; Campos,Fleming Sena; Macedo,Carlos Henrique Oliveira.
The present study evaluated the microbial population, fermentation profile, losses and dry matter recovery, and chemical composition of silages of buffel grass at different cutting heights. To evaluate the microbial fermentation dynamics, the treatments resulted from a 4 × 5 factorial combination consisting of 4 cutting heights and 5 fermentation periods, in a completely randomized design with three replications. The fermentation was evaluated at the end of 1, 3, 7, 15 and 30 days. The other characteristics of silages with 30 days were evaluated following a completely randomized design with four treatments, consisting of 4 cutting heights (30, 40, 50 and 60 cm), and five replications. Fermentation period and cutting height effects and interaction between...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cenchrus ciliaris; Enterobacteria; Lactic acid; Microbiology; Semiarid.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001200003
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Microbial populations, fermentative profile and chemical composition of signalgrass silages at different regrowth ages R. Bras. Zootec.
Santos,E.M.; Pereira,O.G.; Garcia,R.; Ferreira,C.L.L.F.; Oliveira,J.S.; Silva,T.C.; Rosa,L.O..
Microbial populations, pH, ammonium nitrogen/total nitrogen (N-NH3) ratio, concentrations of lactic acid, acetic acid and butyric acid and the chemical composition of Brachiaria decumbens cv. Basiliski silages at different regrowth ages (30, 40, 50, 60 and 70 days) were evaluated by using 2-kg capacity laboratory silos. It was used a 5 × 6 factorial scheme (5 regrowth ages × 6 fermentation periods) in a complete random design, with three replicates. The fermentation periods were 1, 3, 7, 14, 28 and 56 days. Lactic acid bacteria populations were recorded in fresh forage varying from 3.93 (30 days of regrowth) to 5.51 (70 days of regrowth) log colony-forming units (cfu)/g forage. Maximum populations of these microorganisms were recorded in the silages on the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acetic acid; Butyric acid; Enterobacteria; Lactic acid; Lactic acid bacteria.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000400007
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Microbiological profile and aerobic stability of Tifton 85 bermudagrass silage with different additives R. Bras. Zootec.
Neres,Marcela Abbado; Zambom,Maximiliane Alavarse; Fernandes,Tatiane; Castagnara,Deise Dalazen; Rodrigues,Juliana Ferraz Huback; Taffarel,Loreno Egidio; Javorski,Cleovani Rossi; Pozza,Magali Soares dos Santos.
The objective of this study was to evaluate the microbiological profile and aerobic stability of silage with Tifton 85 bermudagrass and different additives and wilting. The studied treatments were: pre-drying in the sun for two hours before ensiling; use of bacterial-enzymatic inoculant; addition of soybean peel; addition of corn grits and use of salt in the surface layer of the silo. The experimental design was completely randomized with six treatments and four replications. Plants of Tifton 85 bermudagrass with 38 days were ensiled in experimental silos with Bunsen valves, with compacting density of 236 kg silage per m³ for Tifton 85 bermudagrass, which was pre-dried in the sun; the average silage was 294 kg m-3 for the other treatments. The ratios...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Clostridium; Enterobacteria; PH silage; Temperature silage; Yeasts.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000600001
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Microbiota of the cecum, ileum morphometry, pH of the crop and performance of broiler chickens supplemented with probiotics R. Bras. Zootec.
Fonseca,Belchiolina Beatriz; Beletti,Marcelo Emílio; Silva,Max Siqueira da; Silva,Paulo Lourenço da; Duarte,Ivamario Nahas; Rossi,Daise Aparecida.
It was studied, in this work, the effects of supplementation of probiotics on the performance, on the pH of crop content, on the morphometry of the ileum and on the number of enterobacteria in the cecum of the broilers. Out of the 120 studied birds, 60 belonged to the test group and 60 to the control group. At 1, 7, 12, 18, 23 and 28 days of age, the chickens and rations were weighed and mortality and morbidity were determined. Then, the birds were sacrificed and the pH of the crop content was measured, ileum fragments were collected for morphometric analysis and the enterobacteria in the cecal content were quantified. The mean pH was lower in the group that was given probiotics at 1, 7 and 18 days of age. There were no differences on ration consumption,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Body weights; Competitive exclusion; Enterobacteria; Intestinal villi; Ration.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000800018
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Multicenter evaluation of resistance patterns of Klebsiella pneumoniae, Escherichia coli, Salmonella spp and Shigella spp isolated from clinical specimens in Brazil: RESISTNET surveillance program BJID
Oplustil,Carmen Paz; Nunes,Rogério; Mendes,Caio.
Surveillance programs are essential to detect the increase of antimicrobial resistance, and several different programs are being conducted in many countries. The RESISTNET is a surveillance program for bacterial resistance against several antimicrobial agents initiated in 1998 among Latin American countries. In Brazil, several centers were invited to join this surveillance and a total of 11 centers (6 from São Paulo and 5 from other states) participated in the study. All results were analyzed using the WHONET program. A total of 894 Escherichia coli, 386 Klebsiella pneumoniae, 70 Shigella spp and 57 Salmonella spp strains were analyzed in this study from April, 1998, to April, 1999. Susceptibility testing was performed by the disk diffusion method using...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enterobacteria; Antimicrobial resistance; Surveillance programs; WHONET.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702001000100002
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Nutritional and microbiological quality of bovine colostrum samples in Brazil R. Bras. Zootec.
Santos,Glauber dos; Silva,Jackeline Thaís da; Santos,Flávia Hermelina da Rocha; Bittar,Carla Maris Machado.
ABSTRACT The objective of this study was to evaluate the nutritional and microbiological composition of colostrum samples collected from colostrum banks or newly calved cows on dairy farms. For this purpose, 66 colostrum samples from dairy cows were directly collected during the milking of newly calved cows or from colostrum storage bank. Samples were collected from commercial properties in the states of Minas Gerais, São Paulo, and Paraná - Brazil, which were classified according to the total daily milk yield (MY). Even though average immunoglobulin concentrations were either adequate (79.7 and 51.7 mg/mL, for farms with MY>701 L/d and <200 L/d, respectively) or marginal (48.1 mg/mL for MY between 201-700 L/d), for only 48.4% of the colostrum...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dairy calf; Enterobacteria; Immunoglobulin G; Passive immunity transfer.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000100072
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Occurrence of yeasts, enterococci and other enteric bacteria in subgingival biofilm of HIV-positive patients with chronic gingivitis and necrotizing periodontitis BJM
Gaetti-Jardim Júnior,Elerson; Nakano,Viviane; Wahasugui,Thais C.; Cabral,Fátima C.; Gamba,Rosa; Avila-Campos,Mario Julio.
The purpose of this study was to determine the prevalence of enteric bacteria and yeasts in biofilm of 80 HIV-positive patients with plaque-associated gingivitis or necrotizing periodontitis. Patients were subjected to extra, intra oral and radiographic examinations. The oral hygiene, bleeding on probing, gingival conditions, and attachment loss were evaluated. Clinical specimens were collected from gingival crevices or periodontal pockets, transferred to VMGA III, diluted and transferred to Sabouraud Dextrose agar with 100 µg/ml of chloramphenicol, peptone water, EVA broth, EMB agar, SS agar, Bile esculin agar and Brilliant green agar. Isolation of yeasts was carried out at room temperature, for 3-7 days; and for the isolation of enteric microorganisms...
Tipo: Info:eu-repo/semantics/article Palavras-chave: HIV patients; Candida albicans; Enterococci; Enterobacteria.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000200011
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Raoultella ornithinolytica Isolation in Cloacal Microbiota of Tinamus solitarius: Preliminary Data Rev. Bras. Ciênc. Avic.
Marietto-Gonçalves,GA; Lima,EL; Nagayoshi,BA; Tonin,AA; Knöbl,T; Adreatti Filho,RL.
ABSTRACT Raoultella ornithinolytica is a gram-negative aerobic bacterium belonging to Enterobacteriaceae family, an emerging pathogen that causes several pathogenic conditions in man, with little veterinary importance; however, its identification is underestimated by conventional laboratory techniques. The present study reports the identification of R. ornithinolytica in Tinamus solitaries, during a routine sanitary evaluation of aerobic enterobacteria in cloacal microbiota of birds belonging to the Güira Oga Center, Puerto Iguazu, Argentina. The sample was preliminary classified as Klebsiella spp.; however, after the use of the MALDI-TOF MS technique it was identified as R. ornithinolytica. The sample was submitted to an antimicrobial susceptibility test,...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Raoultella; Enterobacteria; Microbiota; Wild birds; Public Health.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000200189
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Silage microbiology and its control through additives R. Bras. Zootec.
Muck,Richard E..
Ensiling is a method of preserving a moist crop. A moist crop can support the growth of a wide range of microorganisms, most of which will degrade the nutrient value to livestock. However, ensiling generally controls microbial activity by a combination of an anaerobic environment and a natural fermentation of sugars by lactic acid bacteria on the crop. This fermentation and the resulting low pH primarily suppress the growth of other anaerobic microorganisms. The fermentation can also inhibit yeasts, molds and aerobic bacteria, but the anaerobic environment is essential to preventing most of the spoilage microorganisms from growing. Inoculants have become the dominant additives for making silage. Homofermentative strains help guarantee a rapid suppression...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Clostridia; Enterobacteria; Inoculant; Lactic acid bacteria; Mold; Yeast.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001300021
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Survey of verotoxin-producing Escherichia coli and faecal coliforms in beef carcasses destined for export at slaughterhouses in Brazil. Repositório Alice
BIER, D.; SILVA, M. R.; RAMOS, C. A. do N.; MORININGO, G. D'A.; SILVA, T. A. dos S.; LIMA, A. C. de; CHULLI, J. V. M.; ARAUJO, F. R..
ABSTRACT This study investigated the presence of generic and verotoxin-producing E. coli as well as enumerated faecal coliforms in 30 beef carcasses in different parts of the slaughter process (after skinning, washing and cooling) at each of three slaughterhouses of the state of Mato Grosso do Sul, Brazil. Among the total number of carcasses examined (n = 90), 39 (43.3%) had generic E. coli. Among the 270 samples analysed, 25 (9.3%) were positive after skinning, 14 (5.2%) were positive after washing and nine (3.3%) were positive after cooling. The majority of isolates of E. coli was collected from samples after skinning, which is considered a critical point of the microbial contamination of carcasses. However, the highest concentration of faecal coliforms...
Tipo: Separatas Palavras-chave: Enterobacteria; Meat; Beef industry.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1101319
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Survey of verotoxin-producing Escherichia coli and faecal coliforms in beef carcasses destined for export at slaughterhouses in Brazil Ciênc. Tecnol. Aliment.
BIER,Daniele; SILVA,Márcio Roberto; RAMOS,Carlos Alberto do Nascimento; MORININGO,Giuliani D’Amico; SILVA,Tâmiris Aparecida dos Santos; LIMA,Alaiza Corrêa de; CHULLI,Jenyfer Valesca Monteiro; ARAÚJO,Flábio Ribeiro de.
Abstract This study investigated the presence of generic and verotoxin-producing E. coli as well as enumerated faecal coliforms in 30 beef carcasses in different parts of the slaughter process (after skinning, washing and cooling) at each of three slaughterhouses of the state of Mato Grosso do Sul, Brazil. Among the total number of carcasses examined (n = 90), 39 (43.3%) had generic E. coli. Among the 270 samples analysed, 25 (9.3%) were positive after skinning, 14 (5.2%) were positive after washing and nine (3.3%) were positive after cooling. The majority of isolates of E. coli was collected from samples after skinning, which is considered a critical point of the microbial contamination of carcasses. However, the highest concentration of faecal coliforms...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Meat; Enterobacteria; Beef industry.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000100060
Registros recuperados: 14
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