A5086966047- Sperm and Testicular Function
- Reproductive Biology and Fertility
- Rabbits: Nutrition, Reproduction, Health
- Reproductive Physiology in Livestock
- Bee Products Chemical Analysis
- Ovarian function and disorders
- Animal Genetics and Reproduction
- Cell Adhesion Molecules Research
- RNA Research and Splicing
- Fibroblast Growth Factor Research
- Vector-Borne Animal Diseases
- Gastroesophageal reflux and treatments
- Viral Infectious Diseases and Gene Expression in Insects
- Entomopathogenic Microorganisms in Pest Control
- Reproductive System and Pregnancy
- Additive Manufacturing Materials and Processes
- Reproductive biology and impacts on aquatic species
- Selenium in Biological Systems
- Plant and fungal interactions
- Renal function and acid-base balance
- Ruminant Nutrition and Digestive Physiology
- Extracellular vesicles in disease
- Pharmaceutical studies and practices
- Xenotransplantation and immune response
- Sexual Differentiation and Disorders
University of Buenos Aires
2009-2024
Estudios Clínicos Latinoamérica
2017-2020
Experimental Medicine and Biology Institute
1998-1999
Consejo Nacional de Investigaciones Científicas y Técnicas
1998
Commercial doses of frozen bull semen for artificial insemination may have a certain percentage morphological defects, despite being subject to prior selection. The aims this study were determine the prevalence abnormalities in commercial (n = 55, r 2) dairy and beef bulls, from AI Centers possible existence differences between them, regarding abnormal spermatozoa. At least 200 spermatozoa per sample evaluated using Bengal Rose stain (3% m/v) light microscopy (×1000 magnification). mean...
This study was aimed at testing the hypothesis that different forms of fibronectin (FN), produced as a consequence alternative splicing precursor messenger RNA, play specific roles during development ovarian follicle. In particular, we were interested in determining effect ED-I (also termed ED-A) type III repeat, which is absent plasma form. Analysis FN levels follicular fluids corresponding to stages bovine follicles revealed marked changes concentrations ED-I+ FN, whereas total remained...
To be practical, any method for improving bull semen must yield a large quantity of motile spermatozoa. Some separation methods based on physical properties, e.g. filtration, chromatography, centrifugation, washing and pooling, have been reported as satisfactory, but generally are not repeatable. Nevertheless, filtration appear to allow the attainment an acceptable number spermatozoa, thus allowing such technique introduced in production standard bovine doses artificial insemination. The aim...
Veterinary RecordVolume 153, Issue 12 p. 365-366 Short Communications Collection of wild boar semen by electroejaculation M. L. Fischman DVM, PhD, PhD Spermatology Laboratory, Faculty Sciences, Buenos Aires University, Aires, ArgentinaSearch for more papers this authorJ. Suhevic J. DVM authorM. A. Rivolta authorH. 0. Cisale H. author First published: 20 September 2003 https://doi.org/10.1136/vr.153.12.365Citations: 1Read the full textAboutPDF ToolsRequest permissionExport citationAdd to...
El objetivo del trabajo fue describir las curvas de crecimiento ovino F1 Blackbelly x Pelibuey desde el nacimiento hasta destete, en condiciones pastoreo libre la Amazonía ecuatoriana. Se trabajó con 12 machos y 10 hembras destete. Los animales fueron pesados al nacimiento, a los 4 9 días edad luego semanalmente 55 (destete). desarrollo corporal lineal. No existieron diferencias significativas peso destete ganancia diaria entre sexos
Sperm ‘tail stump’ defect was found in ejaculates of a wild boar maintained captivity. It good physical condition, the testes and genital tract were to be normal size consistency. There no evidence macroscopic abnormalities at clinical analysis necropsy. The volume concentration semen samples obtained by electroejaculation lower than normal. slides examined contained high level abnormal spermatozoa (52.7%). most frequent morphological finding droplet-like form attached base head or very...
The objective of this study was to determine the effect mineral supplementation on serum concentration calcium, phosphorus, and magnesium in pre- postpartum Blackbelly sheep throughout three successive lambing periods under free grazing conditions Ecuadorian Amazon Region. field work carried out between January 2015 February 2018 using 20 belonging Centre for Research, Postgraduate Studies Conservation Biodiversity, Ecuador. flock randomly divided into two groups: Group 1 (G1) fed with...
RESUMENLa utilización de semen enfriado en inseminación artificial (IA) porcina sigue siendo una limitante, ya que la respuesta frente a temperaturas menores 16 °C es aleatoria entre cerdos, y aún eyaculados del mismo cerdo.El objetivo presente trabajo fue jerarquizar capacidad para conservación dosis refrigeradas durante 4 días tres diluyentes comerciales (de larga o media duración) porcino (Androstar Plus®, MRA® MIII®), analizando: viabilidad, funcionalidad membrana, integridad acrosomal...
<p class="sar-body">Dermatophilosis is an acute or cronic disease of the epidermis characterized by inflammatory, exudative and bleeding lesions with scabs, caused bacterium <em>Dermathophiluscongolensis. </em>It affects bovine, ovine, equine, cattle, goats, wild animals also humans when it considered aminor zoonosis. This work about a case <em>Dermathophiluscongolensis</em>in sheep from Ecuadorian Amazonia. The affected presented claudication non itchy in its...
La utilización de semen enfriado en inseminación artificial (IA) porcina sigue siendo una limitante, ya que la respuesta frente a temperaturas menores 16 °C es aleatoria entre cerdos, y aún eyaculados del mismo cerdo. El objetivo presente trabajo fue jerarquizar capacidad para conservación dosis refrigeradas durante 4 días tres diluyentes comerciales (de larga o media duración) porcino (Androstar Plus®, MRA® MIII®), analizando: viabilidad, funcionalidad membrana, integridad acrosomal...
Boar sperm is highly susceptible to cold damage mainly because its plasmatic membrane has a low cholesterol:phospholipid ratio and asymmetric distribution of cholesterol. When the temperature drops 5°C, destabilized. The freezing process causes reduction fertility window frozen/thawed boar less survivability. aim this work was analyze effect cooling 5°C using controlled protocol, on quality, response capacitation stimuli motility patterns. Also, we evaluated if addition Glycerol 2% or 3% at...