Staph aureus in milk

[Guest guest]

Please find below some information I came across today while searching for some information on the Journal of Dairy Science website. Staph aureus is one of the most common pathogens in the dairy industry world-wide. It is a contagious form of mastitis that is typically transferred from cow to cow via milking machines. There are fundamental performance problems with most milking machines that will contribute to the spread of this disease.

Bill Gehm

Staphylococcus aureus is a relevant pathogen to the

food processing industry because of the ability of some

strains to produce heat-stable enterotoxins and other

virulence factors that cause staphylococcal food poisoning

(Dinges et al., 2000; Le Loir et al., 2003). In France,

for instance, 25 out of 149 foodborne staphylococcal

outbreaks that occurred in 1999 were attributed to the

consumption of raw milk cheeses, and 3 out of 13 were

also reported in Italy (WHO, 2000). A mass outbreak

of staphylococcal poisoning was reported in Japan

caused by the consumption of reconstituted skimmed

milk (Ikeda et al., 2005).

Staphylococcus aureus is also a frequent cause of IMI

in dairy cows (Gruet et al., 2001) and may consequently

contaminate milk. Mastitis caused by Staph. aureus is

a major concern because of its resistance to antibiotic

treatment and its propensity to recur (Makovec and

Ruegg, 2003). Growing concerns about antibiotic resistance

have stimulated research into alternative treatment

methods (Skurnik and Strauch, 2006).

[Guest guest]

As will not following proper hygiene procedures and sanitizing of equipment, calves suckling on multiple cows, and the list goes on from there.Then there is the issue of those with a problem that sell the cows rather than culling and aid in spreading the problem to another unsuspecting herd owner. Some auctions are famous for this.The milking equipment itself is only one small piece of the equation.Kurtis Please find below some information I came across today while searching for some information on the Journal of Dairy Science website. Staph aureus is one of the most common pathogens in the dairy industry world-wide. It is a contagious form of mastitis that is typically transferred from cow to cow via milking machines. There are fundamental performance problems with most milking machines that will contribute to the spread of this disease. Bill Gehm Staphylococcus aureus is a relevant pathogen to thefood processing industry because of the ability of somestrains to produce heat-stable enterotoxins and othervirulence factors that cause staphylococcal food poisoning(Dinges et al., 2000; Le Loir et al., 2003). In France,for instance, 25 out of 149 foodborne staphylococcaloutbreaks that occurred in 1999 were attributed to theconsumption of raw milk cheeses, and 3 out of 13 werealso reported in Italy (WHO, 2000). A mass outbreakof staphylococcal poisoning was reported in Japancaused by the consumption of reconstituted skimmedmilk (Ikeda et al., 2005). Staphylococcus aureus is also a frequent cause of IMIin dairy cows (Gruet et al., 2001) and may consequently contaminate milk. Mastitis caused by Staph. aureus isa major concern because of its resistance to antibiotictreatment and its propensity to recur (Makovec andRuegg, 2003). Growing concerns about antibiotic resistancehave stimulated research into alternative treatmentmethods (Skurnik and Strauch, 2006). Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote.Kurtis Stavenwww.wildthingorganics.ca

[Guest guest]

As will not following proper hygiene procedures and sanitizing of equipment, calves suckling on multiple cows, and the list goes on from there.Then there is the issue of those with a problem that sell the cows rather than culling and aid in spreading the problem to another unsuspecting herd owner. Some auctions are famous for this.The milking equipment itself is only one small piece of the equation.Kurtis Please find below some information I came across today while searching for some information on the Journal of Dairy Science website. Staph aureus is one of the most common pathogens in the dairy industry world-wide. It is a contagious form of mastitis that is typically transferred from cow to cow via milking machines. There are fundamental performance problems with most milking machines that will contribute to the spread of this disease. Bill Gehm Staphylococcus aureus is a relevant pathogen to thefood processing industry because of the ability of somestrains to produce heat-stable enterotoxins and othervirulence factors that cause staphylococcal food poisoning(Dinges et al., 2000; Le Loir et al., 2003). In France,for instance, 25 out of 149 foodborne staphylococcaloutbreaks that occurred in 1999 were attributed to theconsumption of raw milk cheeses, and 3 out of 13 werealso reported in Italy (WHO, 2000). A mass outbreakof staphylococcal poisoning was reported in Japancaused by the consumption of reconstituted skimmedmilk (Ikeda et al., 2005). Staphylococcus aureus is also a frequent cause of IMIin dairy cows (Gruet et al., 2001) and may consequently contaminate milk. Mastitis caused by Staph. aureus isa major concern because of its resistance to antibiotictreatment and its propensity to recur (Makovec andRuegg, 2003). Growing concerns about antibiotic resistancehave stimulated research into alternative treatmentmethods (Skurnik and Strauch, 2006). Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote.Kurtis Stavenwww.wildthingorganics.ca

[Guest guest]

As will not following proper hygiene procedures and sanitizing of equipment, calves suckling on multiple cows, and the list goes on from there.Then there is the issue of those with a problem that sell the cows rather than culling and aid in spreading the problem to another unsuspecting herd owner. Some auctions are famous for this.The milking equipment itself is only one small piece of the equation.Kurtis Please find below some information I came across today while searching for some information on the Journal of Dairy Science website. Staph aureus is one of the most common pathogens in the dairy industry world-wide. It is a contagious form of mastitis that is typically transferred from cow to cow via milking machines. There are fundamental performance problems with most milking machines that will contribute to the spread of this disease. Bill Gehm Staphylococcus aureus is a relevant pathogen to thefood processing industry because of the ability of somestrains to produce heat-stable enterotoxins and othervirulence factors that cause staphylococcal food poisoning(Dinges et al., 2000; Le Loir et al., 2003). In France,for instance, 25 out of 149 foodborne staphylococcaloutbreaks that occurred in 1999 were attributed to theconsumption of raw milk cheeses, and 3 out of 13 werealso reported in Italy (WHO, 2000). A mass outbreakof staphylococcal poisoning was reported in Japancaused by the consumption of reconstituted skimmedmilk (Ikeda et al., 2005). Staphylococcus aureus is also a frequent cause of IMIin dairy cows (Gruet et al., 2001) and may consequently contaminate milk. Mastitis caused by Staph. aureus isa major concern because of its resistance to antibiotictreatment and its propensity to recur (Makovec andRuegg, 2003). Growing concerns about antibiotic resistancehave stimulated research into alternative treatmentmethods (Skurnik and Strauch, 2006). Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote.Kurtis Stavenwww.wildthingorganics.ca

[Guest guest]

Thanks Kurtis. The spread of disease is one reason we don't let the calves stay on the cow for more than a couple days. We let them get the colostrum.

ro

Re: Staph aureus in milk

As will not following proper hygiene procedures and sanitizing of equipment, calves suckling on multiple cows, and the list goes on from there.

Then there is the issue of those with a problem that sell the cows rather than culling and aid in spreading the problem to another unsuspecting herd owner. Some auctions are famous for this.

The milking equipment itself is only one small piece of the equation.

Kurtis

No virus found in this incoming message.Checked by AVG - www.avg.com Version: 8.5.441 / Virus Database: 271.1.1/2997 - Release Date: 07/11/10 18:36:00

[Guest guest]

Thanks Kurtis. The spread of disease is one reason we don't let the calves stay on the cow for more than a couple days. We let them get the colostrum.

ro

Re: Staph aureus in milk

As will not following proper hygiene procedures and sanitizing of equipment, calves suckling on multiple cows, and the list goes on from there.

Then there is the issue of those with a problem that sell the cows rather than culling and aid in spreading the problem to another unsuspecting herd owner. Some auctions are famous for this.

The milking equipment itself is only one small piece of the equation.

Kurtis

No virus found in this incoming message.Checked by AVG - www.avg.com Version: 8.5.441 / Virus Database: 271.1.1/2997 - Release Date: 07/11/10 18:36:00

[Guest guest]

Thanks Kurtis. The spread of disease is one reason we don't let the calves stay on the cow for more than a couple days. We let them get the colostrum.

ro

Re: Staph aureus in milk

As will not following proper hygiene procedures and sanitizing of equipment, calves suckling on multiple cows, and the list goes on from there.

Then there is the issue of those with a problem that sell the cows rather than culling and aid in spreading the problem to another unsuspecting herd owner. Some auctions are famous for this.

The milking equipment itself is only one small piece of the equation.

Kurtis

No virus found in this incoming message.Checked by AVG - www.avg.com Version: 8.5.441 / Virus Database: 271.1.1/2997 - Release Date: 07/11/10 18:36:00

[Guest guest]

Cleanliness and proper procedures certainly aid in addressing mastitis problems but the milking equipment is the primary source of trouble when milking with a machine. It is after all the machine that is interacting with the cow and doing the milking. The failure of a milking machine to properly rest the teat will physically damage the teat canal as research has documented. Nearly 25% of teat canals fail to seal even 6 weeks after drying off let alone the few hours between milking. I have included below an excerpt from a Journal of Dairy Science study disclosing the fact that the University of Washington herd experienced an uncontrolled outbreak of Staph aureus even though all proper procedures were being followed. They resorted to blinding the teats which is common practice on many dairies along with culling. The is an abundance of additional information on my website that goes well beyond what can be summarized in an email.

It is unfortunately true that many are dishonest and sell the cows for dairy through auctions. One must always be cautious in purchasing a cow.

Regards,

Bill Gehm

The Washington State University dairy herd experienced

an outbreak of mastitis caused by a single strain

of Staphylococcus aureus in the face of routine contagious

mastitis control procedures ( et al., 1998).

To prevent the outbreak from escalating, additional

control procedures were needed.

[Guest guest]

Cleanliness and proper procedures certainly aid in addressing mastitis problems but the milking equipment is the primary source of trouble when milking with a machine. It is after all the machine that is interacting with the cow and doing the milking. The failure of a milking machine to properly rest the teat will physically damage the teat canal as research has documented. Nearly 25% of teat canals fail to seal even 6 weeks after drying off let alone the few hours between milking. I have included below an excerpt from a Journal of Dairy Science study disclosing the fact that the University of Washington herd experienced an uncontrolled outbreak of Staph aureus even though all proper procedures were being followed. They resorted to blinding the teats which is common practice on many dairies along with culling. The is an abundance of additional information on my website that goes well beyond what can be summarized in an email.

It is unfortunately true that many are dishonest and sell the cows for dairy through auctions. One must always be cautious in purchasing a cow.

Regards,

Bill Gehm

The Washington State University dairy herd experienced

an outbreak of mastitis caused by a single strain

of Staphylococcus aureus in the face of routine contagious

mastitis control procedures ( et al., 1998).

To prevent the outbreak from escalating, additional

control procedures were needed.