A5073718981- Effects of Environmental Stressors on Livestock
- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock
- Meat and Animal Product Quality
- Sperm and Testicular Function
- Pharmacological Effects and Assays
- Plant and soil sciences
- Reproductive Biology and Fertility
- Thermoregulation and physiological responses
- Agricultural and Food Production Studies
- Genetic and phenotypic traits in livestock
- Selenium in Biological Systems
- Heat Transfer Mechanisms
- Animal Behavior and Welfare Studies
- Crop Yield and Soil Fertility
- Agroforestry and silvopastoral systems
- Pesticide Residue Analysis and Safety
- Veterinary Pharmacology and Anesthesia
- Animal Nutrition and Physiology
- Plant Pathogens and Fungal Diseases
- Agricultural pest management studies
- Rabbits: Nutrition, Reproduction, Health
- Veterinary Practice and Education Studies
- Insect Pest Control Strategies
- Animal Disease Management and Epidemiology
Autonomous University of Sinaloa
2007-2022
Universidad Autónoma Metropolitana
2020
Mastitis is the most frequent and expensive disease in Animal Production Units (UPAS-Animal Units) of dairy cattle, due to its serious consequences on economic losses quantity quality milk produced.Its cause directly related aspects well-being, health hygiene sanitation high milkproducing animals.In this work, important be taken into account for diagnosis, prevention, treatment, antimicrobials finally vital importance prevent bovine mastitis UPAS cattle are described.
The objective of this research was to determine the effectiveness different doses diatomaceous earth (TD) against bean Mexican weevil Zabrotes subfasciatus Boheman.An experiment carried out in two phases: first one tested at 1.0, 2.0, 3.0, 4.0 and 5.0 g•kg -1 seed, with samples 15, 30, 45 60 days after application (dda), while second were 0.2, 0.4, 0.6, 0.8 1.0 10, 20, 30 40 dda.The parameters evaluated mortality seed germination.The results indicated that average rate 100% where...
Beta-adrenergic agonists (β-AA) have been shown to positively impact finishing performance and some carcass traits of feedlot cattle. Our objective was evaluate the efficacy a β-AA on basis zilpaterol hydrochloride (Grofactor, Laboratorios Virbac México, Guadalajara, Mexico) growth DMI, characteristics, meat quality bulls. Forty-five bulls (75% Bos indicus, 25% taurus) initially weighing 448.7 ± 2.58 kg were blocked by BW randomly assigned 1 3 diets, using pens animals, in randomized...
El objetivo de esta investigación fue determinar el parasitismo e hiperparasitismo en M. sacchari cultivo sorgo. Se recolectaron piezas hojas sorgo infestadas con pulgones parasitados y se colocaron cajas Petri bajo condiciones laboratorio, contabilizó total adultos emergidos cada ocho días realizó la identificación los insectos. detectó a Lysiphlebus testaceipes parasitando su hiperparasitoide Pachyneuron aphidis, cual mostró una mayor abundancia que del parasitoide primario. Las altas...
RESUMEN. El objetivo del estudio fue determinar el efecto uso de sombra en corderas pelo bajo condiciones estrés calórico sobre parámetros bioquímicos y hematológicos. Veinte cruza Dorper x Pelibuey fueron asignadas forma aleatoria a uno dos tratamientos: 1) corraletas individuales cubiertas con (CS, n=10); 2) sin acceso (SS, n=10). Se tomaron muestras sangre por punción la vena yugular, colecta se realizó durante mañana (6:00 h), cada tercer día los 16 d estudio. Los hematológicos...
At the beginning of 1980s, a series very profound changes were initiated in milk cow nutrition approaches, as consequence highest levels production per that reached by productive systems northern hemisphere. Nutrition is defined processes through which an organism acquires and assimilates food to promote its growth replace worn or damaged tissues. The nutrients are fundamental for animals carry out their different functions. When we consider aspects touch field ruminants, understand...
Five crossbred beef steers (initial BW = 338.6 ± 7.8 kg) fitted with ruminal and duodenal cannulas were used in a 5 × Latin square design experiment to evaluate the effects of methionine hydroxy analog (MHA) and/or yellow grease (fat) added molasses-urea-based supplement on intake characteristics digestion. Steers fed low-quality hay (long-stem lovegrass : 3.3% CP, 76.8% NDF; DM basis) ad libitum supplemented 0.91 kg/d (as fed) 1 4 supplements 2 + factorial arrangement treatments....
El objetivo de esta revisión es mostrar la importancia algunos procedimientos que pueden ser utilizados para aumentar el potencial reproductivo en ovinos y caprinos. Se presentan métodos sincronización del estro, estimulación ovulación, inseminación artificial, transferencia embriones manipulación genética.
El estres oxidativo de los espermatozoides, se refiere al dano que pueden sufrir en la integridad sus componentes estructurales y fisiologicos; cuyo efecto esta directamente relacionado con disminucion sobrevivencia capacidad fecundante despues ser eyaculados. oxidativo, es provocado por formacion gran cantidad especies reactivas oxigeno (ROS) o moleculas contienen radicales libres, las cuales hacen presentes durante el manejo manipulacion del eyaculado, comprometiendo viabilidad...
<p>Debido a los innegables adelantos genéticos y nutricionales, la industria lechera puede hoy producir con alta eficiencia mayor cantidad de leche por vaca año. No obstante, estas mejoras pueden quedar relegadas aparición problemas como el bajo desempeño reproductivo animales. Tanto en sus formas clínica subclínica, mastitis está ligada al estrés tal asociación perjudica considerablemente su reproductivo. Los productores ganaderos deberán prestar preferencial atención tarea mejorar...
Background: Gastrointestinal nematodes (GIN) infection represents several problems to livestock production. Control of GIN is usually achieved by the use chemotherapeutic anthelmintic drugs. However, indiscriminate anthelmintics led development resistance. An alternative chemical control bioactive plants in animal feeds as natural anthelmintics. The objective this experiment was compare effects polyherbal additive containing high concentrations saponins with a conventional antiparasitic drug...
The aim was to evaluate effects of administration two β-adrenergic agonists (β-AA) on growth performance, carcass characteristics and meat-quality traits Zebu heifers finished in a feedlot. Fifty-four weighing 397 ± 29.1 kg were used randomised complete block design with three treatments six blocks (i.e. 18 pens 3 per pen). Treatments as follows: (1) control (C; no supplement); (2) zilpaterol hydrochloride (ZH; 60 mg heifer day); (3) ractopamine (RH; 300 day). β-AA added the diets during...
Se estudió la digestibilidad in situ de matriz fibrosa rastrojo maíz tratado con un complejo enzimático, utilizando dos toros suizos (700 kg PV) cánula ruminal, en diseño bloques al azar, donde cada animal constituyó bloque, y los tratamientos fueron tres niveles enzimas: 0 g (TC), 1 (T1) 2 (T2) Fibrozyme® forraje-1 MS. Las muestras (5 materia seca bolsas nailon) se incubaron el rumen, extrajeron a las 6, 12, 24, 48 72 horas posfermentación. La degradabilidad analizó mediante regresión no...
Brucelosis, leptospirosis, rinotraqueítis bovina infecciosa (IBR) y diarrea viral (DVB) son enfermedades causantes de abortos provocan grandes pérdidas producción. La prevalencia tales afecciones está insuficientemente estudiada en el ganado del trópico húmedo mexicano. El objetivo este trabajo fue determinar la seroprevalencia brucelosis, IBR DVB bovinospara carne cuatro unidades producción animal ubicadas dicha área geográfica.Se analizaron sueros sanguíneos 267 hembras con antecedentes...
The aim of this study was to assess sperm quality (motility, viability and acrosomal integrity) from commercially frozen semen straws two breeds bulls Bos taurus (holstein Frisian) indicus (Brahman). 9 commercial 0.5 ml Holstein bull Brahman were thawed, they kept for hours at room temperature motility, integrity (NAR) assessed. results 30% 40% NAR in the breed. Brahma race motility 40%, 50% obtained NAR. In conclusion, according variables analyzed, breed better than breed; however, both...
The freezing of bovine embryos is a biotechnology applied to animal reproduction this species, whose benefits already reality. aim paper show aspects great importance for embryos. Definition freezing, freeze embryos, disadvantages variables be taken into account the success cryoprotectants, cryoprotectant functions: where following described, conservation methods conventional in slow labeling straws embryo thawing techniques, and crioinjuria One-step method.