Az ikervemhesség klinikai megállapításának lehetőségei szarvasmarhában - Irodalmi összefoglaló

Abstract

SUMMARY Background: The authors overview the relevant literature on clinical diagnostic possibilities of twin pregnancy in cattle. Objectives: The different methods of pregnancy diagnosis were evaluated, underlining the advantages and disadvantages of each method. In practice the pregnancy loss due to embryonic/foetal mortality is the main factor affecting the results of pregnancy diagnoses, therefore the nature of the phenomenon must be taken into consideration when evaluating any method. However, the measurement of pregnancy proteins either in sera or milk is an accurate method for setting up pregnancy diagnosis, at the moment it is not accurate for distinguishing between twin and singleton pregnancies. Diagnosing pregnancy from Days 24-25 by means of ultrasonography is also proper for diagnosing twins, but because of the above-mentioned effect of pregnancy loss, confirming diagnosis is required in cases of twin pregnancies by means of ultrasonography.