Guidelines for monitoring bulk tank milk somatic cell and bacterial counts

Journal of Dairy Science
B M JayaraoN V Hegde

Abstract

This study was conducted to establish guidelines for monitoring bulk tank milk somatic cell count and bacterial counts, and to understand the relationship between different bacterial groups that occur in bulk tank milk. One hundred twenty-six dairy farms in 14 counties of Pennsylvania participated, each providing one bulk tank milk sample every 15 d for 2 mo. The 4 bulk tank milk samples from each farm were examined for bulk tank somatic cell count and bacterial counts including standard plate count, preliminary incubation count, laboratory pasteurization count, coagulase-negative staphylococcal count, environmental streptococcal count, coliform count, and gram-negative noncoliform count. The milk samples were also examined for presence of Staphylococcus aureus, Streptococcus agalactiae, and Mycoplasma. The bacterial counts of 4 bulk tank milk samples examined over an 8-wk period were averaged and expressed as mean bacterial count per milliliter. The study revealed that an increase in the frequency of isolation of Staphylococcus aureus and Streptococcus agalactiae was significantly associated with an increased bulk tank somatic cell count. Paired correlation analysis showed that there was low correlation between different bacte...Continue Reading

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Citations

Mar 5, 2011·The Journal of Dairy Research·Luciana BavaAlberto Tamburini
Aug 17, 2011·The Journal of Dairy Research·Maddalena ZucaliAnna Sandrucci
Sep 16, 2006·Foodborne Pathogens and Disease·B A StraleyB M Jayarao
Nov 29, 2007·Foodborne Pathogens and Disease·Anna Catharina B BergeWilliam M Sischo
Nov 11, 2008·Foodborne Pathogens and Disease·B A HouserB M Jayarao
Sep 10, 2009·Foodborne Pathogens and Disease·Stephen P OliverShelton E Murinda
Jan 1, 2009·Irish Veterinary Journal·Tjgm LamH Smith
Feb 12, 2014·Animal : an International Journal of Animal Bioscience·L BertocchiU Bernabucci
Jul 3, 2015·Current Microbiology·Nara Ladeira de CarvalhoMarcos Veiga dos Santos
Jul 30, 2016·Frontiers in Public Health·Maristela RovaiAlvaro Garcia
Mar 16, 2017·The Journal of Dairy Research·Eleni MalissiovaChristos Hadjichristodoulou
Mar 20, 2008·Journal of Dairy Science·R G M Olde RiekerinkD T Scholl
Mar 24, 2011·Journal of Dairy Science·M L de GarnicaC Gonzalo
Sep 19, 2009·Journal of Dairy Science·J C F PantojaP L Ruegg
Apr 8, 2014·Journal of Dairy Science·S L GelsingerH R Lysczek
Oct 23, 2010·Journal of Dairy Science·J A Elizondo-SalazarA J Heinrichs
May 25, 2011·Journal of Dairy Science·C J B OliveiraW A Gebreyes
May 25, 2011·Journal of Dairy Science·J C F PantojaP L Ruegg
Nov 5, 2013·Journal of Dairy Science·A Flores-MiyamotoA G J Velthuis
Aug 25, 2009·Journal of Dairy Science·A M ElmoslemanyR T Dingwell

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