A5054034161- Genetic and phenotypic traits in livestock
- Reproductive Physiology in Livestock
- Reproductive Biology and Fertility
- Genetic Mapping and Diversity in Plants and Animals
- Ovarian function and disorders
- Effects of Environmental Stressors on Livestock
- Animal Genetics and Reproduction
- Tissue Engineering and Regenerative Medicine
- Genetics and Plant Breeding
- Cardiovascular Function and Risk Factors
- Livestock Farming and Management
- Parathyroid Disorders and Treatments
- Sperm and Testicular Function
- Reproductive Health and Technologies
- Dialysis and Renal Disease Management
- Assisted Reproductive Technology and Twin Pregnancy
- Ruminant Nutrition and Digestive Physiology
- Mesenchymal stem cell research
Universidade José do Rosário Vellano
2018-2024
Instituto Dante Pazzanese de Cardiologia
2024
Universidade Federal de Alfenas
2020-2024
Australian Resources Research Centre
2023
Commonwealth Scientific and Industrial Research Organisation
2023
Universidade Federal do Rio Grande do Sul
2023
Universidade Federal de Minas Gerais
2023
Universidade Federal Fluminense
2014-2018
Abstract Valuable female cattle are continuously subject to follicular puncture (ovum pick-up - OPU). This technique is commonly used for in-vitro embryo production, but may result in ovarian lesion. Mesenchymal stem cells (MSC) ameliorate the function of injured tissues, their use treat lesions has not been established. We investigated whether a local injection MSC would reduce negative effects repeated OPU under acute and chronic scenarios bovines. First, we performed four sessions...
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The aim of this study was to evaluate the effect FSH treatment on in vitro embryo production Gyr (Bos indicus) calves (3-10 months), pubertal heifers (16-21 months) and adult cows. Thirty females were used: 10 calves, (puberty determined by presence a corpus luteum) animals distributed as follows: calves: control (C-C, n=5) with (FSH-C, n=5); heifers: (C-H, (FSH-H, animals: (C-A; (FSH-A; n=5). All received an intravaginal progesterone device (calves-Primer PR®, Agener União, Brazil;...
The objective of this work is to estimate genetic parameters and breeding values improve embryo oocyte production, using repeatability random regression models (RRM) for Gir dairy cattle. We used 11,398 records ovum pick-up from 1,747 donors evaluated sixteen different models: the traditional model fifteen RRM, each which considered a combination Legendre polynomial regressors describe additive permanent environment effects. 4G1P (four [...]
Abstract This study evaluated the effect of protected fatty acid inclusion during estrus synchronization on reproductive parameters. Goats ( n = 32) received progestagen sponges for 6 days and 200 IU equine chorionic gonadotropin 30 µg d‐cloprostenol were given Day 5. No difference was found among control (C), 1% (C + 1%) or 4% 4%) groups, respectively, in (100.0, 100.0 90.9%), duration (31.6 ± 12.3; 43.2 12.9 40.8 14.1 h), animals ovulating 90.0 100.0%) ovulation rate (1.3 0.5; 1.1 0.3 1.2...
Introduction: Chronic kidney disease (CKD) is a critical comorbidity in heart failure with preserved ejection fraction (HFpEF), often linked to congestion due elevated filling pressures. However, the role of subtle systolic dysfunction CKD remains be elucidated. This study aimed investigate predictive power left ventricular function for patients HFpEF, using advanced machine learning (ML) techniques. Methods: We analyzed data from 497 referred specialized HFpEF clinic. Using models (Random...
Abstract The oocyte donor plays a pivotal role in bovine vitro embryo production (IVP) success. individual factor affects blastocyst/oocyte ratio and determine the existence of outstanding performing animals. aim this study was to assess extent effect IVP efficiency, population Gir donors. Extreme (high or low efficiency based on ratio) animals were selected out 250 donors (1,734 observations) form high (>0.48, n = 40), average (0.17–0.48, 168), (<0.17, 42) groups. Cumulus‐oocyte...
Improving in vitro culture systems to optimize embryo yield has been a major research goal. The relationship between the efficiency of production and pregnancy outcomes, however, remain controversial. aim present study was evaluate likelihood vitro-produced embryos derived from batches with different relative indexes. Data 702 ovum pick-up (OPU) (IVEP) sessions, 2456 transfers, recorded 2008 2012, were evaluated. All donors same herd, breed (Gir, Bos indicus), as well semen used for IVF....
Abstract Identifying and selecting genotypes tolerant to heat stress might improve reproductive traits in dairy cattle, including oocyte embryo production. The temperature-humidity index (THI) was used, via random regression models, investigate the impact of on genetic parameters breeding values production Gir cattle. We evaluated records total oocytes (TO), viable (VO), cleaved embryos (CE), (VE) from donors. Twenty-four models were tested, considering age at ovum pick-up (AOPU) THI means...
Abstract Count traits are usually explored in livestock breeding programs and it does not fit into Normal distribution, requiring alternatives to adjust the phenotype estimate accurate genetic parameters values. Alternatively, distribution such as Poisson can be used evaluate count traits. This study aimed compare discuss evaluation for oocyte embryo counts considering Gaussian (untransformed variable – LIN, transformed by logarithm LOG, Anscombe ANS) (POI) distributions. The data comprised...
The aim of this study was to evaluate risk factors for pregnancy loss in embryo recipients. We evaluated data from 31,792 transfers (ET), including 859 embryos derived vivo (IVD), 28,814 produced vitro (IVP), and 2,119 by somatic cell nuclear transfer (SCNT), recorded 2008 2012 on a single commercial farm. Embryos were different production laboratories, but ET performed the same team within herd. Recipients checked (PR) ultrasonography 23 days after re-examined Days 60, 90, 120 gestation...
Anti-Müllerian hormone (AMH) has a well-known association with antral follicle count (AFC) and the number of oocytes recovered by OPU in cattle. However, to be used as criterion select candidate donors for ART, AMH reference values must established each breed. The aim this study was estimate cutoff selecting oocyte Gir (Bos indicus) A blood sample collected at random day oestrous cycle from heifers (n=120) 23.3±0.5 months age, plasma stored further analysis ELISA, using commercial kit...
Reproduction, Fertility and Development is an international journal publishing original research , review comment in the fields of reproduction developmental biology humans, domestic animals wildlife