A5028575298- Reproductive Physiology in Livestock
- Genetic and phenotypic traits in livestock
- Effects of Environmental Stressors on Livestock
- Animal Nutrition and Physiology
- Ruminant Nutrition and Digestive Physiology
- Reproductive Biology and Fertility
- Agricultural and Food Production Studies
- Rabbits: Nutrition, Reproduction, Health
- Sperm and Testicular Function
- Animal Genetics and Reproduction
- Wildlife Ecology and Conservation
- Hypothalamic control of reproductive hormones
- Pharmacological Effects and Assays
- Animal Behavior and Welfare Studies
- Mycobacterium research and diagnosis
- Birth, Development, and Health
- Livestock and Poultry Management
- Natural Products and Biological Research
- Meat and Animal Product Quality
- Animal Nutrition and Health
- Animal Diversity and Health Studies
- Antioxidant Activity and Oxidative Stress
- Agriculture Sustainability and Environmental Impact
- Helminth infection and control
- Pharmacological Effects of Natural Compounds
Colegio de Postgraduados
2016-2025
Universidad Univer
2020
Autonomous University of San Luis Potosí
2018
Universidad Nacional de Córdoba
2014
Institut National de la Recherche Agronomique
1997-1998
Physiologie de la Reproduction et des Comportements
1996-1997
Universidad de Murcia
1991
El objetivo de este estudio fue evaluar el efecto la suplementación con grasa sobrepaso y uso eCG en un protocolo sincronización ovejas pelo subnutridas lactantes vacías. Un total 112 pelo: 55 57 vacías peso promedio 38 ± 8 kg las fueron asignadas a ocho tratamientos. Se utilizó diseño completamente al azar; donde se evaluó (con sin) 300 UI sin). Las variables evaluadas fueron: respuesta estro, tiempo inicio tasa retorno, gestación, parto, prolificidad fecundidad. La administración no...
One of the main factors that influence fertility cattle in grazing systems hot tropical climates is heat stress. The objective this study was to evaluate effect season, breed, hormonal and physiological condition on quantity quality cumulus-oocyte complexes (COCs) embryos produced vitro, from Romosinuano (RM) Tropical Milking (TM) donors. Three ovum pick-up vitro fertilization (OPU-IVF) were performed, one per season; dry (HD; 10, 10), humid (HH; 9, 9) fresh (FD; 7, 10) RM LT Serum levels...
Lameness or leg weakness is becoming an important problem in broilers selected for rapid growth, and although the causes are not known, sedentary behavior could be a cause. Two experiments were conducted to study effects of distance presence ramps between resources (feed water) on bone tendon strength, ability stand, productive performance. In experiment 1, straight run Ross 708 chicks (n = 1,260) randomly assigned 1 3 treatments: 1.0, 3.3, 6.6 m (6 pen replicates/treatment). 2, Cobb 500...
One of the strategies to genetically improve reproductive traits, despite their low inheritability, has been identification candidate genes. Therefore, objective this study was detect genes associated with fecundity through fixation index (FST) and runs homozygosity (ROH) selection signatures in Katahdin ewes. Productive records from three years were used genotypes (OvineSNP50K) 48 Two groups ewes identified carry out genetic comparison: high (1.3 ± 0.03) (1.1 0.06). This shows for first...
In the present study we have identified a site of action estradiol in inhibition LH secretion during anestrus ewe. first experiment, studied six sites: medial preoptic area, lateral ventromedial hypothalamus, ventrolateral retrochiasmatic area (RCh), and periventricular posterior hypothalamus. We compared changes parameters pulsatile (interpulse interval, mean nadir, amplitude, under curve) three 6-h sampling periods: before 30–36 h 9 days after intracerebral implantation crystalline...
One of the main factors that influences fertility cattle in grazing systems hot tropical climates is heat stress. The objective this study was to evaluate effect season, breed, hormonal and physiological condition on quantity quality cumulus–oocyte complexes (COCs) embryos produced vitro, from Romosinuano (RM) Tropical Milking (TM) donors. Three ovum pick-up vitro fertilization (OPU-IVF) were performed, one per season: dry (HD; 10, 10), humid (HH; 9, 9) fresh (FD; 7, 10) RM LT Serum levels...
Litter material and stocking density were evaluated on welfare-related variables productive performance in broilers. Male chicks (n = 744, “Ross 308” strain) raised either tezontle (TEZ...
This study tested whether the intravenous application of kisspeptin can stimulate pulsatile secretion LH in suckling ewes during postpartum anestrus. Ten days after lambing, Pelibuey were allocated among two groups: (1) continuous (n = 8), where lambs remained with their mothers; and (2) restricted mothers suckled twice daily for 30 min. On Day 19 postpartum, individually penned ad libitum access to water feed given an indwelling catheter each jugular vein. 20, 4 mL blood was sampled every...
Abstract In the ewe, inhibition of pulsatile LH secretion by oestradiol during long days depends on dopaminergic activity and could involve amino acid transmitters. first experiment present study we observed changes in ovariectomised ewes under immediately after subcutaneous implantation (peripheral treatment). second experiment, order to identify site action oestradiol, following intracerebral infusion through a microdialysis membrane (central treatment) within preoptic area, mediobasal...
El aceite de orégano es un aromático usado en la industria avícola como aditivo natural. Esta investigación fue diseñada para cuantificar el timol y carvacrol carne pechuga pollo. En total, 320 pollos fueron alimentados con una dieta a base maíz-pasta soya, utilizando soya crudo (CSO, por sus siglas inglés) o acidulado (ASO , fuente concentrada energía, sin (OO, inglés). La identificación cuantificación los compuestos realizadas cromatografía gases espectrometría masas. Los datos obtenidos...
The effect of climatic factors on ovarian activity and reproductive behavior (RB) was evaluated in 46 Bos indicus cows kept under grazing conditions. Temperature-humidity index (THI) used as an indicator stress divided alert, damage emergency levels. Fat thickness (FAT) taken during the last trimester gestation (LTG) to approximately 90d postpartum (PP). At 30d PP animals received a progesterone (P4)-releasing device (CIDR) which withdrawn 9d later. Ovarian assessed by blood days 21, 24, 27,...