Eficiência do fármaco Gestavet® sobre a indução e sincronização do cio de fêmeas suínas e a viabilidade econômica de sua utilização em granja comercial

Abstract

One of the problems faced in pig production, specifically related to the swine female, is the long period between the day of weaning and the new manifestation of estrus, which we call the weaning-estrus interval (FDI). The longer this period, the greater the number of non-productive days (DNP), which may compromise the numerical production of the farm, causing these animals to have shorter production cycles. The use of hormonal protocols represents one of the forms used to reduce FDI and consequently the number of nonproductive days in commercial farms. Among the drugs used, we can mention Gestavet®, composed of chorionic gonadotropin (HCG), which stimulates follicular growth and equine serum gonadotrophin (PMSG), responsible for the stimulation of follicular maturation and ovulation, and consequent induction and synchronization of estrus. To evaluate the efficiency of this product, 122 multiparous swine females were used, divided into two groups: A = Application of the drug Gestavet® and B = Control group, without application of any substance. The variables evaluated were the wean-estrus interval and the number of non-productive days of the females submitted to the treatments. At the end of the experiment, an economic feasibility analysis was also carried out to validate or not the use of the drug in routine pig farms. From the matrices submitted to Gestavet ®, the number of days between weaning and estrus were statistically different between the treatments (P <0.05), with an SDI of 4 days, proving the efficiency of the drug, the FDI and consequently reducing the DNP. In light of this, we concluded that the effect of the application of the hormone on the non-productive days also gave a satisfactory way, reducing the nonproductive days of the farm, and the economic viability analysis was favorable to its practical use.