Uso da gonadotrofina coriônica equina para melhora dos resultados da IATF em fêmeas Nelore

Abstract

This activity was carried out on several farms in the interior of Pernambuco from 10/02/2023 to 12/21/2023 with the aim of improving knowledge in the field area, such as a medical clinic and a laboratory analyzing brucellosis tests in cattle. In horses, it was only used in the medical-clinical area. The biggest focus was on bovine reproduction with fixed-time artificial insemination (IATF). During the internship period, farms in the forest and rural areas of Pernambuco were visited, mainly working with beef cattle. Gestational diagnoses were made with several different age ranges, protocol initiations, and artificial inseminations. In the surgical clinic area, surgeries such as castration in horses, vulvoplasty in heifers, and hematoma drainage in calves were experienced. Laboratory and field tests were carried out, with laboratory tests for brucellosis using the AAT (buffered acidified antigen) method and field tests focused on tuberculosis. At the animal exhibition, it was possible to receive documents (GTA, brucellosis test, equine infectious anemia test, and vaccination card) to receive the animals that arrived at the Cordeiro exhibition park. The birth of a Girolando female was observed. Chapter II included a literature review with the title “Use of equine chorionic gonadotropin to improve TAI results in Nelore females” in which the work reaffirms the effectiveness of using eCG in postpartum cows with low body scores, helping TAI protocols as a tool to enhance and improve follicular development and maturation.