Parto eutócico diurno em égua primípara e comportamento neonatal nas primeiras 24 horas: relato de caso

Abstract

At the end of the gestational period is the expulsion of the fetus to the external environment this step is preceded by the rupture of fetal wraps together with the dilatation of fetal channels and the trigger vigorous uterine and abdominal contractions, which favor the birth the chick, featuring a eutocic normal or delivery. In mares this process tends to be very fast compared to other species, lasting around 20-30 minutes but it could take in primiparous mares. Eutocic births in the predominant fetal static is the anterior longitudinal presentation, top position and extended position. Any change in this provision indicates the occurrence of dystocia and requires immediate intervention, as the infant can ome to death as a result of placental abruption and the establishment of a anoxia frame. Daytime births happens between 6:00pm and 7:00am and represent only 12% of cases, and over 87% of deliveries take place between 7:00am and 6:00pm, so the mares usually seek the moment of greatest environmental tranquility for proceed calving. This report refers to a eutocic, day labor, in a primiparous mare, Mangalarga Marchador belonging to the army of the Federal University of Bahia Reconcavo and the description of the neonatal behavior in the first 24 hours. The horse was in a paddock motherhood along with other pregnant mares, getting hay and commercial feed in the trough, twice a day and water ad libitum. In the pre-partum period presented relaxation of the sacrum-sciatic ligament and mammary gland development, delivery proximity indicators. The day of delivery, around 10h40min the animal showed restlessness, sweating, digging movements and distance of other mares who were on the picket line, indicating have started labor, culminating in the birth of a male foal that showed fetal static aforementioned typical eutocic delivery. The fetal expulsion phase lasted 10 minutes, placental expulsion phase lasted 68min, spontaneous rupture of the umbilical cord was 5 minutes after birth, the newborn was placed in station 35min after birth, held the first feeding after 42min, eliminated meconium after 59min, the first urination occurred after 5h15min and the placenta weighed 3,35kg without changes. All parameters remained within the normal range reported in the literature for both the mother and cub, both being even in low tranquility. It is concluded that the occurrence of daytime eutocic delivery in primiparous mares culminating with the birth of perfectly normal foals is possible.