A Microbiological Study of Lymph Nodes, Bone Marrow and Muscle Tissue Obtained from Slaughtered Cattle

Possible Sources of Ethanol Ante‐ and Post‐mortem: its Relationship to the Biochemistry and Microbiology of Decomposition

“…Higher numbershode and high percentages of Gram positive rods (presumptive Bacilli) were associated with low rainfall in the preceding two months, indicating either that dust increased the contamination rate, or that dry weather reduced natural resistance, perhaps due to poorer nutrition. Log,, numbers of viable organisms/g of node at 37 "C in the study of Lepovetsky et al (1953) ranged from 2.0-5.7 (av. 3.8).…”

Intrinsic Bacteria in Meat

“…In papers which report that a comparatively large intrinsic flora is commonly present, there is agreement that Gram positive cocci are the major contaminating bacteria. Where more detailed identification was done, the predominant genera were variously reported as staphylococci (Reith 1929;Vanderzant & Nickelson 1969), streptococci (Lepovetsky et al 1953;Robinson et al 1953), or micrococci (Barnes & Ingram 1955). The proportion of animals found to contain intrinsic bacteria at densities from lo2-104/g varied from 30 to 100% (Tables 1, 2 and 3).…”

Salmonella Prevalence in Bovine Lymph Nodes Differs among Feedyards

“…Most previous studies have been focused on Salmonella in mesenteric lymph nodes (4,5). However, in some studies the prevalence of Salmonella (2) and other bacteria (3) has been analyzed in lymph nodes destined for use in ground product as a component of lean trimmings. Although contradicting bacterial prevalence data have been reported, research has been focused on prevalence among types of lymph nodes rather than on the origin or source of the cattle.…”