Assessment of lamb carcass hygiene before and after chilling at five Irish abattoirs

Lenahan, M.; O’Brien, S.; Kinsella, K.J.; Sweeney, T.; Sheridan, J.J.

doi:10.1016/j.foodcont.2009.06.011

Cited by 21 publications

(9 citation statements)

References 26 publications

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“…The TVCs were similar to those reported in the literature on ovine carcasses, even though using different slaughtering and sampling procedures (Sumner et al ., 2003 ; Byrne et al ., 2007 ; Nouichi and Hamdi, 2009 ; Phillips et al ., 2013 ), or even lower than data reported by other authors (Milios et al ., 2011 ). The same was observed as for the Enterobacteriaceae count (Lenahan et al ., 2010 ). The use of air inflation in both of the skinning techniques did not affect the hygienic status of sheep carcasses, as previously reported for lambs (Severini et al ., 2000 ).…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of carcass hygiene in sheep subjected to gas de-pelting with different skinning procedures

et al. 2014

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The aim of the study was to evaluate the hygienic status of sheep carcasses skinned with two different procedures, the pulling down and Y cut methods, with and without the use of compressed filtered air inflation. Five sheep carcasses per day for each of the four skinning methods considered were sampled on ten different slaughtering days using wet and dry swab techniques at a local abattoir specialised in ovine slaughtering. A pool of four different sampling sites (brisket, shoulder, thorax and rump) was considered for each animal. Furthermore, ten animals were also randomly selected on different slaughtering days for each of the four skinning techniques and the four sampling sites were separately swabbed and analysed in each animal. The total viable count (TVC) and Enterobacte riaceae count were performed and the presence of Salmonella spp. was also tested. The daily average mean value of each parameter was in compliance with limits set by Regulation (EC) 1441/2007, falling into satisfactory or acceptable category for Enterobacteriaceae and within the acceptable level range for TVC for both the methods used with and without air de-pelting. For both TVC and Enterobacteriaceae count, no statistically significant differences (P>0.05) were recorded between samples obtained from carcasses skinned with and without air inflation for either of the skinning methods used and any of the sites sampled. No Salmonella spp. were detected in any of the tested samples. Nonetheless, no improvement in the carcass hygiene was detected either and, for this reason, other aspects should be taken into consideration when considering adopting the gas de-pelting method.

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Section: Discussionmentioning

confidence: 99%

“…No considerations could be made for Salmonella spp. since all the samples were negative, as other authors also reported (Lenahan et al ., 2010 ).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of carcass hygiene in sheep subjected to gas de-pelting with different skinning procedures

et al. 2014

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“…Além disso, os resultados corroboram com outros estudos em que a amostragem em diferentes pontos e tempo durante o processo de um matadouro-frigorífico podem influenciar o número de bactérias recuperadas através das análises microbiológicas (McEvoy et al, 2004;Lenahan et al, 2010). Tabela 1: Médias das contagens de bactérias aeróbias mesófilas, em log UFC.cm -2 , de equipamentos da sala de desossa em diferentes horários durante a jornada de trabalho a Médias na mesma linha com letras iguais sobrescritas não diferem significativamente entre si pelo teste de Tukey (p<0,05).…”

Section: Resultsunclassified

Controle da carga microbiana em equipamentos de desossa utilizando limpeza a seco

Stefanello¹,

Cavalheiro²,

Stefanello³

et al. 2015

RBCV

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ResumoO objetivo da presente pesquisa foi avaliar as condições higiênico-sanitárias através do nível de contaminação bacteriológica inicial e a cada duas horas consecutivas de equipamentos da sala de desossa durante a jornada de trabalho, a fim de certificar a eficácia da aplicação de limpeza a seco como procedimento padronizado de higienização operacional. Neste sentido foram coletadas amostras em triplicata para análise bacteriológica no início e a cada duas horas consecutivas da rotina diária de desossa em quatro equipamentos distintos que entram em contato direto com o produto final. Estas coletas foram realizadas durante cinco dias produtivos consecutivos totalizando cinco repetições. As coletas foram realizadas através da técnica do "swab test" e método rápido de análise. As contagens de bactérias aeróbias mesófilas se mantiveram dentro do limite aceitável estabelecido de até 1,0 log UFC.cm -2 para o horário 1 e de até 5,0 log UFC.cm -2 para os demais horários. Todas as contagens de enterobactérias se mantiveram dentro do limite aceitável estabelecido de até 3 log UFC.cm -2 , notando-se que não houve diferenças (p>0,05) entre os valores encontrados nos quatro equipamentos nos diferentes horários amostrados. Sendo assim, a aplicação da limpeza a seco durante toda a jornada de trabalho na sala de desossa é eficaz para o controle da contagem de bactérias aeróbias mesófilas e de enterobactérias, portanto contribui para a produção de alimento seguro ao consumidor.Palavras-chave: carne bovina, contaminação, limpeza, micro-organismos, sala de desossa. AbstractThe objective of the present research were evaluate the sanitary conditions through initial bacteriological contamination level and every two consecutive hours of the deboning room equipments during workday to ensure the effectiveness of dry cleaning application as standardized procedure of operational hygiene. The samples were collected in triplicate for bacteriological analysis was proceded at baseline and every two consecutive hours of deboning daily routine in four different equipments that comes into direct contact with the end product. These samples were taken for five consecutive productive days totaling five repetitions. The collections were made using the technique of swab test and rapid method of analysis. The aerobic mesophilic counts not exceeded the acceptable limit of 1.0 log UFC.cm -2 for one hours and up to 5.0 log UFC.cm -2 for other times. All enterobacteria counts not exceeded the acceptable limit of up to 3.0 log UFC.cm -2 . There were no differences among values observed from the different equipment analyzed. In addition, the application of dry cleaning throughout the workday in the deboning room was an effective control of mesophilic aerobic bacteria and enterobacteria, thus ensuring the production of safe food the consumer.

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“…The European Commission Directive 2001/471/EC uses the total viable count (TVC) and Enterobacteriaceae as bacterial indicators of hygiene and faecal contamination on carcasses before chilling (Lenahan et al, 2010). In the current study, the mean values of TVC were within acceptable range according to the EC Commission Directive 2001/471/EC of < 3.5 log10 CFU/cm 2 .…”

Section: Microbiological Profilementioning

confidence: 99%

Effect of Organic Selenium-Enriched Yeast Supplementation in Finishing Sheep Diet on Carcasses Microbiological Contamination and Meat Physical Characteristics

Velázquez-Garduño

Mariezcurrena-Berasain

Salem

et al. 2015

Italian Journal of Animal Science

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The aim of the current study was to evaluate the effect of feeding Pelibuey sheep on diet supplemented with different doses of organic selenium (Se)-enriched yeast on carcasses microbiological contamination and meat physical characteristics. The experiment was conducted during the finishing stage of 18 female sheep and lasted for 60 days. In a complete randomized design, sheep were distributed to one of three treatments: the control without Se-yeast (T1), the control supplemented with Se-yeast at 0.35 mg Se/kg DM (T2), and control supplemented with Se-yeast at 0.60 mg Se/kg DM (T3). The yeast product used was Selyeast 3000 TM yeast (LFA Lesaffre, Toluca, Mexico) with a Se concentration of 3000 ppm (mg/kg). Lambs were slaughtered at the end of the experiment at an average weight of 39.5±4.41 kg and samples were taken for microbiological analysis. There were no differences between treatments (P>0.05) and the aerobic plate counts for T1, T2 and T3 had indexes of 0.10, 0.08 and 0.08 log10 CFU/cm 2 , respectively. Total coliform counts obtained were 0.13, 0.10 and 0.09 log10 CFU/cm 2 for T1, T2 and T3, respectively, and the faecal coliform counts were 0.09 log10 CFU/cm 2 for T1, 0.06 log10 CFU/cm 2 for T2 and 0.07 log10 CFU/cm 2 for T3. No significant effects (P>0.05) were observed for carcasses physical characteristics of microbial growth, initial and ultimate pH and temperature, colour values and water holding capacity. It can therefore be concluded that organic Se-enriched yeast did not affect carcasses bacterial proliferation or meat physical characteristics.

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Assessment of lamb carcass hygiene before and after chilling at five Irish abattoirs

Cited by 21 publications

References 26 publications

Evaluation of carcass hygiene in sheep subjected to gas de-pelting with different skinning procedures

Evaluation of carcass hygiene in sheep subjected to gas de-pelting with different skinning procedures

Controle da carga microbiana em equipamentos de desossa utilizando limpeza a seco

Effect of Organic Selenium-Enriched Yeast Supplementation in Finishing Sheep Diet on Carcasses Microbiological Contamination and Meat Physical Characteristics

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