Vultures and others scavenger vertebrates associated with man-sized pig carcasses: a perspective in Forensic Taphonomy

ABSTRACTMeasurements of longissimus dorsi pH at 45 min post mortem (pH1) were taken in 27 727 pig carcasses at four bacon factories. The overall least squares mean pH1 was 6·26 and 15·5% of carcasses had pHi values of 5·9 or less. Sex and commercial grade of carcass had little influence on muscle pHi or the incidence of values below pH 6·0. Factory differences were recorded in the distribution of muscle and within each there were marked producer effects in mean and the incidence of values below pH 6·0. Carcasses of Large Whites had fewer muscle pH1 values below 6·0 (12·4%) than those of British Landrace (18·7%), this being mainly due to a large breed effect at one factory. Although breed and testing background of sires of the carcasses examined and the first order interactions with factory had significant effects on muscle pHi and the incidence of values below pH 6·0, they were of little practical significance.

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Variability of Escherichia coli and Enterobacteriaceae counts on pig carcasses: A systematic review

Food Control ◽

10.1016/j.foodcont.2015.02.042 ◽

2015 ◽

Vol 55 ◽

pp. 115-126 ◽

Cited By ~ 9

Author(s):

Simone Belluco ◽

Lisa Barco ◽

Anna Roccato ◽

Antonia Ricci

Keyword(s):

Escherichia Coli ◽

Systematic Review ◽

Pig Carcasses

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Prevalence and characterization of plasmids carrying sulfonamide resistance genes among Escherichia coli from pigs, pig carcasses and human

Acta Veterinaria Scandinavica ◽

10.1186/1751-0147-52-47 ◽

2010 ◽

Vol 52 (1) ◽

pp. 47 ◽

Cited By ~ 50

Author(s):

Shuyu Wu ◽

Anders Dalsgaard ◽

Anette M Hammerum ◽

Lone J Porsbo ◽

Lars B Jensen

Keyword(s):

Escherichia Coli ◽

Resistance Genes ◽

Sulfonamide Resistance ◽

Pig Carcasses ◽

Sulfonamide Resistance Genes

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Genotyping and antimicrobial resistance in Escherichia coli from pig carcasses

Pesquisa Veterinária Brasileira ◽

10.1590/s0100-736x2017001100010 ◽

2017 ◽

Vol 37 (11) ◽

pp. 1253-1260 ◽

Cited By ~ 1

Author(s):

Caroline Pissetti ◽

Gabriela Orosco Werlang ◽

Jalusa Deon Kich ◽

Marisa Cardoso

Keyword(s):

Escherichia Coli ◽

Antimicrobial Resistance ◽

Antimicrobial Agents ◽

Commensal Bacteria ◽

Pfge Analysis ◽

Gene Detection ◽

E Coli ◽

Antimicrobial Resistance Profile ◽

Resistant Strains ◽

Pig Carcasses

ABSTRACT: The increasing antimicrobial resistance observed worldwide in bacteria isolated from human and animals is a matter of extreme concern and has led to the monitoring of antimicrobial resistance in pathogenic and commensal bacteria. The aim of this study was to evaluate the antimicrobial resistance profile of Escherichia coli isolated from pig carcasses and to assess the occurrence of relevant resistance genes. A total of 319 E. coli isolates were tested for antimicrobial susceptibility against different antimicrobial agents. Moreover, the presence of extended-spectrum β-lactamase (ESBL) and inducible ampC-β-lactamase producers was investigated. Eighteen multi-resistant strains were chosen for resistance gene detection and PFGE characterization. The study showed that resistance to antimicrobials is widespread in E. coli isolated from pig carcasses, since 86.2% of the strains were resistant to at least one antimicrobial and 71.5% displayed multi-resistance profiles. No ampC-producing isolates were detected and only one ESBL-producing E. coli was identified. Genes strA (n=15), floR (n=14), aac(3)IVa (n=13), tetB (n=13), sul2 (n=12), tetA (n=11), aph(3)Ia (n=8) and sul3 (n=5) were detected by PCR. PFGE analysis of these multi-resistant E. coli strains showed less than 80% similarity among them. We conclude that antimicrobial multi-resistant E. coli strains are common on pig carcasses and present highly diverse genotypes and resistance phenotypes and genotypes.

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Mycobacterium avium subsp. avium in Lymph Nodes and Diaphragms of Pigs from One Infected Herd in the Czech Republic

Journal of Food Protection ◽

10.4315/0362-028x.jfp-13-036 ◽

2014 ◽

Vol 77 (1) ◽

pp. 141-144 ◽

Cited By ~ 3

Author(s):

PETR KRIZ ◽

MARIJA KAEVSKA ◽

IVA SLANA ◽

IVA BARTEJSOVA ◽

IVO PAVLIK

Keyword(s):

Lymph Nodes ◽

Mycobacterium Avium ◽

Mycobacterium Avium Subsp ◽

Mesenteric Lymph Nodes ◽

Tissue Samples ◽

The Czech Republic ◽

Mesenteric Lymph ◽

Qpcr Method ◽

Pig Carcasses ◽

Slaughtered Pigs

This study was performed on 40 finished pigs from one herd naturally infected with Mycobacterium avium subsp. avium. The aim was to investigate the presence and amount of M. a. avium in samples of lymph nodes and diaphragm tissues collected during routine postmortem inspection using the triplex quantitative real time PCR (qPCR) method. We collected, in total, 107 samples: various lymph nodes affected by gross tuberculosis (TB)–like lesions from 17 pig carcasses, as well as samples of head and mesenteric lymph nodes from 23 carcasses without TB-like lesions. Samples of diaphragm tissues were collected from all carcasses. M. a. avium was detected in one or more tissue samples collected from half of the slaughtered pigs tested. Samples of diaphragm tissues of three pigs with detected TB-like lesions contained M. a. avium (102 to 103 cells per g of sample); the organism was not detected in diaphragm tissues from pigs without TB-like lesions. The qPCR method may be useful for quantification of M. a. avium in pigs for the purposes of foodborne risk assessment.

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