Scientists Discover Two
Longer-Living
Lactobacillus Strains
Two new strains of beneficial Lactobacillus acido
philus, Priority strain A2OlO and A 2020, have been
isolated for use in dairy cows and calves by Priority In
ternational Animal Concepts (lAC).
“New research shows microbial strains A2OlO and
A 2020 survive in a cow’s rumen longer, tolerate high
concentrations of bile in the intestinal tract, bind to in
testinal cells, and help maintain animal health,” an
nounced Richard Breunig, Priority lAC president.
These characteristics are required for the bacteria to be
able to survive and impart their beneficial effect in the
harsh rumen intestinal environment.
“Higher levels of beneficial bacteria have been sci
entifically selected to help maintain a healthy rumen
micro flora, keep cows on feed and be better prepared
to stay healthy through transitions.” Breunig. said.
It has long been thought certain beneficial bacteria
can aid in the fight against “bad” bacteria or patho
gens. Recently Texas Tech and the American Meat In
stitute published research showing some Lactobacillus
acidophilus strains could reduce the presence of E. coli
when fed to beef cattle. Researchers at the University
of Georgia’s Center for Food Safety published similar
findings.
“The research team isolated dozens of strains from
dairy cows and tested them under harsh rumen and in
testinal environments to find ones that not only sur
vive but thrive,” said Breunig. “We wanted to find the
right strains to add to the Priority One and Priority
Calf formulation that would provide help with the
multiple stresses today’s high performing animals are
experiencing.” The new strains will be included in the
Priority One and Priority Calf fed product.
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