Balikesir Health Sciences Journal , cilt.11, sa.3, ss.462-470, 2022 (Hakemli Dergi)
Objective: This study, it was aimed to determine which of the multiplex conventional PCR and Real-Time PCR methods
are more suitable for the detection of cow and sheep milk mixed with goat milk. Materials and Methods: For this purpose,
one liter of each goat, cow, and sheep milk was obtained from farms in Van province. PCR experiments were carried out by
adding cow's milk and sheep's milk in the same proportions into goat milk (1%, 2%, 5%, 0.1%, and 0.5%). Multiplex
conventional and Real-Time PCR were used in these trials. Results: In the cow and sheep milk trials, it was determined that
the presence of 1%, 2%, and 5% cow and sheep milk added to goat milk could be determined by the multiplex conventional
PCR method. However, it was observed that the positivity of the gel image of the milk mixtures added at the rate of 0.5%
was unclear, and the mixtures at the rate of 0.1% could not be detected. In the Real-Time PCR method, the presence of cow
and sheep milk was detected in all the mixtures and positive graphics were determined. Conclusion: This showed that the
Real-Time PCR method gives more reliable results even when 0.1% cow or sheep milk is mixed with commercially available
goat milk.