TY - JOUR AU - Miranda Pires Quintas, Hélder AU - Silva, Daiane Moreira AU - Pereira Afonso, Paulo Jorge AU - de Carvalho Neves Álvaro, Armindo AU - Pinto Mateus, Óscar João AU - Corujeira Valentim, Ramiro PY - 2023/04/10 Y2 - 2024/03/29 TI - Timed artificial insemination in Serrana nanny-goats: the effects of vaginal specula and artificial insemination technicians JF - Revista Agrogeoambiental JA - R. Agrogeoambiental VL - 15 IS - unico SE - ANIMAL SCIENCE DO - 10.18406/2316-1817v15nunico20231753 UR - https://agrogeoambiental.ifsuldeminas.edu.br/index.php/Agrogeoambiental/article/view/1753 SP - e20231753 AB - <p><span style="font-weight: 400;">The success of artificial insemination (AI) depends on the equipment used, especially regarding the facilitation of artificial insemination technicians’ work and the positioning of insemination guns in the genital tract of animals. This study aimed to evaluate how vaginal specula and artificial insemination technicians affected the fertility rates of timed artificially inseminated Serrana Transmontano goats (which are indigenous to Portugal). For this, 58 adult nanny-goats aged </span><span style="font-weight: 400;">between three and nine years were used. They were reproductively controlled by a short progestogen treatment (FGA) (seven days) with equine chorionic gonadotropin (eCG). Timed cervical AI (43 hours after the end of the hormonal treatment) was performed with chilled semen. Nanny-goats were inseminated by two artificial insemination technicians (A </span><em><span style="font-weight: 400;">vs</span></em><span style="font-weight: 400;">. B) alternating two vaginal specula </span><span style="font-weight: 400;">(Minitub </span><em><span style="font-weight: 400;">vs</span></em><span style="font-weight: 400;">. “Reyes”)</span><span style="font-weight: 400;">. Pregnancy was diagnosed by ultrasound 41 days later. About 98% of nanny-goats responded to our treatment with FGA and eCG. In total, 82.8% of nanny-goats were pregnant 41 days after AI. Neither vaginal specula (Minitub: 81.2% </span><em><span style="font-weight: 400;">vs</span></em><span style="font-weight: 400;">. “Reyes”: 84.6%) nor artificial insemination technicians (A: 82.8% </span><em><span style="font-weight: 400;">vs</span></em><span style="font-weight: 400;">. B: 82.8%) affected fertility rates. Thus, we conclude that neither the vaginal specula used in this research nor the artificial insemination technicians affected Serrana goat pregnancy rates.</span></p> ER -