A5051833825- Reproductive Physiology in Livestock
- Reproductive Biology and Fertility
- Genetic and phenotypic traits in livestock
- Sperm and Testicular Function
- Ovarian function and disorders
- Animal Genetics and Reproduction
- Effects of Environmental Stressors on Livestock
- Reproductive System and Pregnancy
- Assisted Reproductive Technology and Twin Pregnancy
- Ruminant Nutrition and Digestive Physiology
- Animal Behavior and Welfare Studies
- Reproductive biology and impacts on aquatic species
- Birth, Development, and Health
- Renal and related cancers
- Bioenergy crop production and management
- Virus-based gene therapy research
- Animal health and immunology
- Xenotransplantation and immune response
- Physiological and biochemical adaptations
- Veterinary Equine Medical Research
- Congenital Anomalies and Fetal Surgery
- Pluripotent Stem Cells Research
- Veterinary Medicine and Surgery
- Reproductive Health and Technologies
- Seed Germination and Physiology
Universidade Federal Fluminense
2016-2025
Universidade Unigranrio
2017-2019
Universidade Estadual do Ceará
2012-2017
Fundação de Estudo e Pesquisa em Medicina Veterinária e Zootecnia
2016-2017
Physiologie de la Reproduction et des Comportements
2012-2016
Université de Tours
2013-2014
Centre National de la Recherche Scientifique
2014
Muséum national d'Histoire naturelle
2014
Universidade Federal de Viçosa
2010-2012
Brazilian Agricultural Research Corporation
2011
Context Superovulation is still a main limitation of multiple ovulation and embryo transfer programs because its high cost the variability in responses to hormonal protocols used. Aims This study aimed compare effect two doses porcine follicle-stimulating hormone (pFSH) on follicular growth, superovulatory response, vivo production Santa Inês ewes. Methods A total 40 multiparous ewes received Day 0 estrus synchronization protocol were superovulated with either 333 IU (G333, n = 20) or 500...
A total of 3427 goat oocytes were used in this study to identify possible differences during vitro embryo production from slaughterhouse or laparoscopic ovum pick up (LOPU) oocytes. In experiment 1, one complex, semi-defined, and simplified IVM media compared using 2, we checked the effect oocyte origin (slaughterhouse LOPU) on kinetics maturation (18 vs. 22 26 hours) when submitted semi-defined media. 3, determined development between LOPU both then IVF parthenogenetic activation (PA)....
Brazil has presented tremendous progress in non-surgical embryo transfer (NSET) sheep and goats. New instruments techniques for recovery (NSER) NSET small ruminants were implemented. Recent improvements include refinement of the protocols cervical relaxation combining oestradiol-oxytocin-cloprostenol treatment at specific times before NSER sheep; recipient goats do not require any hormonal drugs to induce dilation direct by route yields excellent results. Transrectal ovarian ultrasonography...
Cryoprotectants are required to reduce damage caused the cells due low temperatures during cryopreservation. Antifreeze proteins (AFP) have a well-known role in cell membrane protection, while resveratrol is potent antioxidant. This study assessed effect of association concentrations and AFP I ram semen extender. Pooled four rams was allocated into six treatments factorial arrangement: (CONT, only extender); (ANT: 0.1 µg/mL I), resveratrol, one treatment with two levels (10 µM/mL or 50...
The objective of this study was to compare the effect hormonal treatment duration through use intravaginal sponges impregnated with 60 mg MAP for 6 (G6; n = 10), 9 (G9; 10) or 12 (G12; days. All nulliparous (n 15) and lactating Saanen goats received 37.5 µg d-cloprostenol 200 IU eCG 24 hours before sponge removal during nonbreeding season. After removal, estrus monitored twice a day (06h00 18h00) by fertile bucks. Transrectal ovarian ultrasonography performed after device until ovulation...
This study examined the feasibility of transcervical embryo recovery after hormonal treatment to induce cervical dilation, following 7-day oestrous synchronization protocol in multiparous Santa Inês ewes. A total 23 cyclic ewes received two doses 37.5 μg d-cloprostenol by latero-vulvar route 7 days apart. After second injection d-cloprostenol, were checked for oestrus (every 12 hr) and then mated fertile rams throughout period. All (latero-vulvar) 1 mg oestradiol benzoate either...
This review presents the latest advances in and main obstacles to application of invitro embryo production (IVEP) systems small ruminants. biotechnology is an extremely important tool for genetic improvement livestock essential establishment other biotechnologies, such as cloning transgenesis. At present, IVEP market almost non-existent ruminants, contrast with trends observed cattle. probably related lower added value commercial demand fewer qualified professionals interested this area....