A5008736380- Effects of Environmental Stressors on Livestock
- Mycobacterium research and diagnosis
- Reproductive Physiology in Livestock
- Infectious Diseases and Mycology
- Meat and Animal Product Quality
- Genetic and phenotypic traits in livestock
- Sperm and Testicular Function
- Humic Substances and Bio-Organic Studies
- Fungal Infections and Studies
- Seed Germination and Physiology
- Pharmacological Effects and Assays
- Milk Quality and Mastitis in Dairy Cows
- Tuberculosis Research and Epidemiology
- Fungal Biology and Applications
- Neuroendocrine regulation and behavior
- Agriculture Sustainability and Environmental Impact
- Reproductive Biology and Fertility
- Thermoregulation and physiological responses
- Helminth infection and control
- Animal Nutrition and Health
- Animal Behavior and Welfare Studies
- Circadian rhythm and melatonin
- Animal Diversity and Health Studies
Hospital General De Zona
2022-2025
Mexican Social Security Institute
2022-2025
Universidad Autónoma Metropolitana
2023-2024
Colegio de Postgraduados
2019-2021
Universidad Autónoma de Baja California
2010
The objective of the present study was to evaluate effects supplementation zilpaterol hydrochloride (ZH) finishing diets on feedlot performance and carcass characteristics hair sheep ewe lambs during hot environmental conditions. Twenty Katahdin × Pelilbuey Dorper Pelibuey crossbred females with an average initial liveweight (LW) 26.2 ± 0.83 kg were blocked by LW, assigned individually 20 pens in a closed calf-rearing unit provided fans. Treatments (1) control group (basal diet without ZH)...
Using an Ekomilk Bond Total Ultrasonic Milk Analyzer, the physicochemical characteristics of milk from 10 herds and 237 samples were analyzed during rainy season (July August; 109 samples) dry (January February; 128 samples), providing following measures: fat (%), non-fat solids (NFSs; %), density (g/mL), freezing point (°C), acidity temperature lactose conductivity (mS/cm), pH water (%). In this study, there was a higher percentage (2.975 vs. 5.001%) (1033.692 1035.45 g/mL) in compared to...
High environmental temperatures cause heat stress in ewes, resulting thermoregulatory problems. In this study, the responses of Blackbelly adult ewes (G1, n = 14) and female lambs (G2, 7), during summer under tropical conditions, southern Mexico were analyzed. Different physiological variables skin (ST) recorded. Breathing frequency (BF) values similar between groups at 116.73 ± 33.598 bpm (G1) 113.661 34.515 (G2) (p > 0.05). case elasticity (SE), there no significant differences time day...
Mycobacterium avium subsp.paratuberculosis (MAP) is the causative agent of paratuberculosis (PTB), disease that causes a syndrome bad nutrient absorption, weight loss and eventually death.The intestine main target organ where infection develops; however, there evidence by MAP in extra-intestine sites sheep, including mesenteric nodes semen.The aim study was to identify presence reproductive tissue semen infected Pelibuey rams clinical state PTB.Seven were used PTB non-infected ram breed,...
Objective: To evaluate the reproductive and seminal characteristics of Pelibuey rams infected with Mycobacterium avium subsp. paratuberculosis in subclinical phase. Design/methodology/approach: In order to determine whether (PTB) affects variables quality naturally (MAP) phase, weekly evaluations were conducted, over a period two months, live weight, scrotal circumference, ejaculation latency characteristics: volume, pH, masal motility progressive individual motility, concentration,...
Objective: to evaluate the effect of breed, reproductive season, dose and time application equine chorionic gonadotropin (eCG) on estrous cycle ovarian activity in hair ewe lambs.
 Design/methodology/approach: 216 Hair lambs were used (62 Dorper, 69 Katahdin y 85 Pelibuey), 91 high season 125 low they synchronized with intravaginal sponges containing 20 mg fluorogestone acetate (FGA) (eCG; 200 300 IU) intramuscularly. The treatments are eCG. presence estrus was analyzed under a logistic...
Objective: To evaluate the reproductive and productive behavior of four hair sheep breeds in an intensive production system.
 Design/Methodology/Approach: Data recorded over 4 years (2016-2019) from a unit that works with Blackbelly, Pelibuey, Dorper, Katahdin were analyzed. The following variables evaluated: fertility, prolificacy, birth weight (BW), weaning (WW), weaned lamb yield (WLY), daily gain during lactation (DWGL), offspring born alive (OBA), male (MO), female (FO). All...
Objective: To assess the effect of two ovine semen diluents, Andromed® and OviXcell®, on mass motility, vitality, acrosomal integrity spermatozoa processed at different temperatures with addition post-thawed HTF (human tubal fluid). Design/Methodology/Approach: Semen from 2 Dorper ram was used. Four ejaculations per male were collected diluted Ovixcell®. There four treatments Ovixcell®: 1) fresh Ovixcell®, 2) refrigerated 3) 4) Ovixcell® + HTF. treaments also carried out: Andromed®, Mass...
Paratuberculosis (Ptb) es una enfermedad contagiosa principalmente en bovinos, ovinos, cabras y otros rumiantes; el organismo que causa de esta Mycobacterium avium subespecie paratubeculosis (MAP) la cual lesiones intestino.
Objective: To evaluate the reproductive characteristics of male goats (Capra hircus L.)with habitual management on their herds at Benito Juarez municipality, Guerrero, Mexico.Design / methodology approach: Ten Creole from seven wereevaluated, aged between 2 to 7 years and 3 body condition (BC). The males wereevaluated regarding sexual behavior, sperm quality, physical examination andreproductive clinical evaluation.Results: All assessed displayed behavior (P < 0.05).However, for three...
Paratuberculosis (PTB) is a disease that affects cattle (Bos taurus), goats (Capra aegagrus hircus), sheep (Ovis aries), and wild animals, such as white-tailed deer (Odocoileus virginianus), since all ruminants are susceptible. The causal agent Mycobacterium avium subsp. paratuberculosis (MAP). chronic, consumptive, incurable; it causes chronic granulomatous gastroenteritis with lymphangiectasis lymphangitis leading to syndrome of malnutrition eventually death. transmitted in feces mainly...
El objetivo de esta investigación fue estimar los valores hematológicos en bovinos infestados garrapatas, esto debido a que las garrapatas pueden inocular una amplia variedad agentes patógenos, cuales trasmitir patógenos usando distintas rutas; secreciones salivales, fluidos coxales, la regurgitación y con sus heces, existen reportes indican relación directa entre el índice infestación por presencia anaplamosis anemia ganado bovino. La se realizó Santiago Sochiapan, Veracruz, México, usaron...
Objective: To test whether HTF (Human Tubal Fluid) is capable of protecting goat sperm cells increasing the semen m determine if can protect buck cells, motility when used by itself or combined with Andromed® commercial extender. Design/Methodology/Approach: The eight bucks Boer breed was (10 ejaculates per male). Each ejaculate diluted in three treatments (5 repetitions treatment): 1) only Andromed®; 2) HTF; and 3) + HTF. following variables were evaluated: mass (MM) progressive (MP) fresh...
Objetivo: evaluar la respuesta superovulatoria y calidad embrionaria de un grupo vacas Brahman lactando sometidas a protocolo dosis bajas FSH.
 Metodología: en el estudio fueron superovuladas 33 raza multíparas lactando. Las hembras sincronizadas con CIDR (inserción día 0) decrecientes FSH (día 5: 250mg FSH, 6: 200 mg 7: 150 mg), 9 10 se practicó inseminación artificial (IA); finalmente 17 realizó lavado para recolección embriones. Los embriones colectados una sonda Foley, contenido fue...