Corresponding Author: Camila Infantosi Vannucchi Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo (USP), Rua Prof. Orlando Marques de Paiva, 87, São Paulo, 05508-270, Brazil Ph: +55 11 30911423 Email: [email protected] Abstract: Placenta is considered an important endocrine organ during gestation, as well as can also serve as a target or...

This investigation reported for the first time the occurrence of intramammary infections caused by Staphylococcus in primiparous replacement goats before parturition and the persistence of clinical Staphylococcus aureus infection during the lactation period. Subclinical infections, mainly caused by coagulase negative staphylococci (CoNS), did not persist during lactation. Genotyping analysis in...

Anti-Müllerian hormone (AMH) is secreted from the preantral and small antral follicles. It regulates follicle development and inhibits follicular atresia. This study examined how age, parity, and time after parturition affect plasma AMH concentrations in Japanese Black cows. We measured plasma AMH concentrations in primiparous, secundiparous, and multiparous (third parity or higher) cows at fou...

Eight periparturient Holstein Friesian cows were examined for plasma tartrate-resistant acid phosphatase (TRAP) activity to assess the degree of bone metabolic activity and to evaluate the association between the change in calcium (Ca) concentration and bone metabolism during the periparturient period. Milk fever occurred in 1 of 8 cows just after parturition. Plasma TRAP activities did not mar...

ABSTRACT Objective: to analyze the health care provided women in peripartum and parturition during pandemic period of COVID-19. Method: analytical cross-sectional study, conducted with 404 puerperal from three maternity hospitals Paraná - Brazil, between months September-December/2021. Data were analyzed by chi-square test (p<0.05) verify association. Results: was taken prevent COVID-19 (phy...

ative to calving, and twice weekly postpartum. Plasma were analyzed for triglycerides (TG), total cholesterol, lipoprotein cholesterol and fatty acids. Changes in plasma lipid concentrations during the periparturient period were characterized for the first time. Plasma lipid concentrations were not affected by feeding rumen-protected choline. Cows fed SB beginning at 28 days prepartum had highe...

The purpose of this study was to investigate the influence of corn oil administration on gestation, parturition, and lactation in rats, in conjunction with diets differing in composition of nutrients. Rats were divided into two groups, each fed different commercial pellets for rodents, CA-1 or CE-2, different from each other mainly in the source of protein. Female Sprague-Dawley rats in both di...

Milk samples were collected from 180 heifers from 20 herds around parturition to study the prevalence and persistence of intramammary infection (IMI). A total of 3382 quarter milk samples was collected each week from 4 wk before parturition to 4 wk after parturition. Staphylococcus chromogenes, the most commonly found bacterial species before parturition, was isolated from 15% of all quarters. ...

The effects of mastectomy and unilateral ovariectomy and their interaction during the postpartum period were examined in 26 Angus heifers. At birth, the animals were assigned to a 2 x 2 factorial arrangement of treatments: mastectomy and unilateral ovariectomy, mastectomy, unilateral ovariectomy and unoperated suckled control. Surgeries were performed at approximately 2 months of age, and anima...