A5022272822- Genetic and phenotypic traits in livestock
- Reproductive Physiology in Livestock
- Reproductive Biology and Fertility
- Neonatal Respiratory Health Research
- Assisted Reproductive Technology and Twin Pregnancy
- Renal and related cancers
Universidade de São Paulo
2014-2015
Abstract:Two ultrasound based fertility prediction methods were tested prior to embryo transfer (ET) and artificial insemination (AI) in cattle. Female bovines submitted estrous synchronization ET AI. Animals scanned immediately before AI procedure target follicle corpus luteum (CL) size vascularity. In addition, inseminated animals also eleven days after CL All data was compared with by using gestational diagnosis 35 ovulation. Prior ET, vascularity showed a positive correlation fertility,...
We evaluated the effects of nulliparous, primiparous, and multiparous conditions on estrus pregnancy rates in females that did not show but were treated with gonadotropin-releasing hormone (GnRH) at time timed artificial insemination (TAI). Nelore (n = 531) allocated according to following categories: nulliparous 144), primiparous 132), 255). The animals received a conventional TAI protocol, expression was identified by absence paint sacrococcygeal region day TAI. Females 10 μg GnRH together...
Offspring derived from artificial reproductive techniques are already known to present several postnatal undesirable phenotypes and clinical disorders. Despite its benefits, cloning by somatic cell nuclear transfer (SCNT) is extremely inefficient. The birth rate in cattle around 5% of the transferred blastocysts, ~50% delivered calves die first 48 h. Neonatal respiratory distress reported be one main causes such deaths. Veterinary intervention often needed promote or improve blood...