A5066072765- Reproductive Physiology in Livestock
- Birth, Development, and Health
- Genetic and phenotypic traits in livestock
- Sperm and Testicular Function
- Meat and Animal Product Quality
- Reproductive Biology and Fertility
- Muscle metabolism and nutrition
- Effects of Environmental Stressors on Livestock
- Muscle Physiology and Disorders
- Wildlife Ecology and Conservation
- melanin and skin pigmentation
- Animal Behavior and Welfare Studies
- Regulation of Appetite and Obesity
- Pregnancy-related medical research
- Neuroendocrine regulation and behavior
- Fish Ecology and Management Studies
- Adipose Tissue and Metabolism
- Biochemical Analysis and Sensing Techniques
- Animal Nutrition and Physiology
- Rangeland Management and Livestock Ecology
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Growth Hormone and Insulin-like Growth Factors
- Agriculture Sustainability and Environmental Impact
- TGF-β signaling in diseases
- Xenotransplantation and immune response
Universidad de la República
2013-2024
Delphinus Medical Technologies (United States)
2022
Universidad de Montevideo
1999-2018
Observatorio Astronómico Los Molinos
2006-2017
Swedish University of Agricultural Sciences
1995-2001
The nutritional status of females during pregnancy can play a critical role in the postnatal growth and development offspring, often leading to permanent changes ('fetal programming'). Sertoli cells are strong candidate for fetal programming future performance because number is highly correlated with adult testicular size maximum rate sperm production. For Merino ewes, we imposed different levels metabolizable energy (ME) intake (LowME: 70% requirements maintenance ewe body mass normal...
The nontyphoidal Salmonella enterica serovar Dublin is adapted to cattle but infrequently infects humans, very often resulting in invasive infections with high levels of morbidity and mortality. A Salmonella-induced intestinal acute inflammatory response postulated as a mechanism prevent bacterial dissemination systemic sites. In S. Typhimurium, flagella contribute this by providing motility FliC-mediated activation pattern recognition receptors. study, we found 4 isolates, the antigenic...
Sperm cryopreservation by ultra-rapid cooling based on dropping small volumes of sperm suspension directly into liquid nitrogen, has been successful in some wild ruminant species, including the Iberian ibex (Capra pyrenaica). In cooling, contents these droplets are expected to enter a stable, glass-like state, but best our knowledge no information exists regarding presence or absence ice formation extracellular milieu when using this technique. Different modifications likely inflict...
To test whether undernutrition during foetal to pre-pubertal life would have long lasting effects on testicular histology in adult male offspring, eleven Sprague-Dawley pregnant rats were divided into two groups: Control group, n = 4, fed ad libitum, gestation and lactation (until 25 day post-partum). Underfed group females (n 7) kept cages where only dams had access food (standard rat chow, 33.5% of libitum intake dams). After parturition, litters adjusted either 14 (Underfed group) or...
We tested the hypothesis that acute pre-natal exposure to high levels of synthetic glucocorticoid (betamethasone) would alter fetal testicular development through actions on gonadal receptors (GRs). Pregnant Merino ewes bearing singleton male fetuses (n = 24) were allocated randomly among four equal groups be injected intramuscularly with saline or betamethasone (0.5 mg/kg) either day 109 gestation both and 116 gestation. Fetal testes collected at post-mortem, 5 days after each treatment....
The aims of the present study were to describe intermuscular differences in meat-quality traits 15 young-sheep muscles, and associations between meat quality fibre typing across all (pooled) muscles as well previously selected homogeneous contractile–metabolic groups (slow-oxidative, intermediate fast-glycolytic muscles). Meat-quality (pH, colour, expressed juice, cooking losses, tenderness sarcomere length) evaluated after 24 h slaughter from five cross-bred young sheep. Across studied some...
Transcriptome deep sequencing is a powerful tool for exploring the genetic architecture of complex traits. Gene expression patterns may explain high degree observed phenotypic differences in histochemical and metabolic parameters related to meat quality among different muscles. In this study, we sequenced by RNA-Seq whole transcriptome nine lamb muscles: Semimembranosus (SM), Semitendinosus (ST), Cranial gluteobiceps, Gluteus medius (GM), Rectus femoris, Supraspinatus (SS), Longissimus...
Effect of forage allowance before conception and until mid or late gestation was evaluated for effects on foetal neonatal weights, carcass, nervous systems, metabolic reproductive organ body dimensions, variation in intensity the among organs. Effects two allowances, HFA: high (2.9 - 3.8 kg dry matter (DM)/kg bodyweight (BW)) LFA: low (1.4 2.6 DM/kg BW) were from 23 days 70 122 postpartum. On day 70, nine ewes per treatment, each carrying one male foetus, euthanized their foetuses removed....