EVALUATION OF THE EFFECTIVENESS OF INJECTABLE MINERAL SUPPLEMENTATION WITH PHOSPHORUS, SELENIUM, MAGNESIUM, COPPER AND POTASSIUM ON THE REPRODUCTIVE EFFICIENCY OF BEEF COWS SUBMITTED TO FIXED-TIME ARTIFICIAL INSEMINATION (FTAI)

Abstract

Reproductive efficiency is a key factor in the profitability of beef cattle production. This study aims to investigate the effects of injectable mineral supplementation containing phosphorus, selenium, magnesium, copper, and potassium (Fosfosal®) on the cyclicity and pregnancy rate of beef cows submitted to Fixed-Time Artificial Insemination (FTAI). The methodology adopted includes a bibliographic and systematic review based on scientific articles published between 2020 and 2025. Inclusion criteria involved studies addressing injectable supplementation associated with bovine reproduction, while exclusion criteria removed publications lacking empirical data. The results indicate a significant improvement in reproductive parameters in cows treated with mineral supplementation, especially in animals with low body condition scores. The discussion also highlights that different eCG dosage regimens showed no significant differences, reinforcing the potential role of mineral supplementation as an isolated or complementary strategy to reproductive protocols. These findings may guide more effective reproductive management practices, promoting higher productivity in beef production systems.