Delvotest SP NT is designed to
test milk for the presence of antibacterial substances such as antibiotics. The
test is made of an agar gel containing bacterial spores and a pH indicator. The
milk sample is added onto the agar gel, and the test is placed for incubation
at 64 degrees C. The principle of the test is based on the diffusion of
possible inhibitory substances that may be present in the milk sample into the
agar. This reduces growth and acid production by the test organism and delays
or prevents the agar from changing color from purple to yellow. The present
report includes all technical details about the Delvotest SP NT and the results
of the validation study. The validation study demonstrates that the Delvotest
SP NT conforms to the product performance claims and confirms the robustness of
the test. The Delvotest SP NT is therefore granted Performance Tested
Method(SM) certification.
The Delvotest® is the mostly widely used antibiotic test used
for the detection of antibiotic residues in milk and dairy products globally.
It is the only broad spectrum test in the world with the ability to detect the
widest range of antibiotics in a single test and have AOAC and or AFNOR
certification. The original test required the addition of a nutrient tablet before
the addition of milk during testing. Further development has seen the tablet
removed and incorporated within the agar and therefore No Tablet was needed.
That’s why the abbreviation SPNT now stands for Sulphadiazine Penicillin No
Tablet.
Designed for use on the farm. Standard diffusion test has high
sensitivity to most veterinary antibiotics. No tablet required, just add milk
to the ampule. See results, indicated by color, in under 3 hours. For use with
cows, sheep and goats. Not intended for NCIMS use. Long kit shelf life. Kit
contains individual ampules containing Bacillus stearothermophilus, dosing
syringe, disposable pipettes, tweezers and instructions.