FETAL SEXING TECHNIQUES IN CATTLE: APPLICABILITY OF ULTRASOUND AND EFFICIENCY IN THE FIELD

Abstract

This study aims to review the applicability and field efficiency of fetal sexing techniques in cattle, compiling data and indices in a synthesized manner, so that it can present the most up-to-date and concise scientific evidence available in the current literature. Fetal sexing in cattle has become a strategic practice to improve indices such as productivity and profit in herds, so that reproductive management becomes essential for animal production. Thus, methods for determining fetal sex are being increasingly studied, among them, transrectal ultrasonography, molecular methods such as polymerase chain reaction (PCR) and loop-mediated isothermal amplification (LAMP), proteomic analysis of amelogenin peptides (AMELX and AMELY), and early diagnostic methods, such as sperm selection and the influence of the environment on the definition of the sex of the offspring, stand out.