Consequences of heat stress on reproduction of cattle

Heat stress represents one of the major environmental factors that adversely affect the reproductive performance of cattle. In this paper the behavioral adjustments, physical mechanisms and physiological responses to heat loss are described; bos indicus adaptive advantages with respect to bos Taurus, pathophysiology of heat stress and heat stress effects in animal reproduction, both the male and the female.

Tiflocolitis syndrome acute for "Klebsiella" sp. in a spanish pure breed horse. A case report

Were study a horse (Equus caballus), Purebred Spanish Horse, 6 years old, intact male sex, weight about 550kg, from equestrian center in Fregenal Sierra-Extremadura, Spain. History of acute diarrhea, are apply conventional treatment (hydration, anti-inflammatory and antibiotic). Physical examination showed severe profuse, fetid diarrhea deep red, tachypnea. The physiological parameters were: heart rate 60 bpm, respiratory rate 39 rpm and mucous cyanotic. Temperature: 40°C. Hematological examination showed severe leucopenia, decreased total serum protein, albumin and globulin also diminished. Serum chemistry evidenced severe hyponatremia and hypokalemia, with high levels of chlorine indicating metabolic acidosis. A stool analysis, which was negative and showed no eggs or larvae in the samples studied was performed. The microbial culture allowed the isolation of Klebsiella sp. and susceptibility testing showed sensitivity to ampicillin, Cetafzidine, Ciprofloxacin, Cefepine, gentamicin, imipenem, meropenem, Piperaciclina, piperacillin / tazobactam and trimethoprim sulfa resistance. The horse presented systemic complications associated with endotoxemia and death 36 hours after the onset of diarrhea. At necropsy, severe bleeding was observed enterotiflocolitis. The histological sections showed proliferative enteritis characterized by lymphocyte and mononuclear inflammatory infiltrate plasmocytorious mucosa and submucosa, coagulation necrosis, bacteria and short rod type morphology with no specific grouping. In conclusion a case of acute syndrome enterotiflocolitis reported Klebsiella sp. on a horse Purebred Spanish.

Smartphone and GPS technology for freeroaming dog population surveillance -a methodological study (Studio metodologico sull’applicazione di smartphone e tecnologia GPS alla sorveglianza delle popolazioni di cani vaganti)

Free-roaming dogs (FRD) represent a potential threat to the quality of life in cities from an ecological, social and public health point of view. One of the most urgent concerns is the role of uncontrolled dogs as reservoirs of infectious diseases transmittable to humans and, above all, rabies. An estimate of the FRD population size and characteristics in a given area is the first step for any relevant intervention programme. Direct count methods are still prominent because of their non-invasive approach, information technologies can support such methods facilitating data collection and allowing for a more efficient data handling. This paper presents a new framework for data collection using a topological algorithm implemented as ArcScript in ESRI® ArcGIS software, which allows for a random selection of the sampling areas. It also supplies a mobile phone application for Android® operating system devices which integrates Global Positioning System (GPS) and Google Maps™. The potential of such a framework was tested in 2 Italian regions. Coupling technological and innovative solutions associated with common counting methods facilitate data collection and transcription. It also paves the way to future applications, which could support dog population management systems.

Behavioural and physiological responses of shelter dogs to long-term confinement

In Italy, National Law (281/1991) prohibits euthanasia of shelter dogs if they are not dangerous or suffering seriously. Adoption rates in rescue shelters are often lower than entrance rates, leading inevitably to overcrowded facilities where animals are likely to spend the rest of their lives in kennels. In this situation, housing conditions (i.e. space provided, environmental, and social stimulation) may have an impact on canine welfare. In this research project, the effects of two different forms of housing (group- and pair housing) on long-term shelter dogs were compared using behavioural and physiological parameters. Observational data and saliva samples were collected from dogs exposed to both experimental settings; behaviour and cortisol concentration levels were used as welfare indicators. Pair housing offered fewer social and environmental stimuli and behavioural analysis showed a significant decrease in locomotor, exploratory, and social behaviour. Cortisol levels show that this parameter varied independently of housing conditions. Although this study found no evidence suggesting that one form of confinement reduced animal welfare more than the other (e.g. in terms of abnormal behaviour, or higher cortisol concentrations), the type of confinement did affect the expression of a variety of behaviours and these variations should not be ignored with respect to housing decisions for long-term shelter dogs.

Investigación parasitológica de la merluza (merluccius gayii peruanus)

Presenta los resultados obtenidos dentro del marco de cooperación entre el Instituto del Mar del Perú y la Universidad Nacional Federico Villarreal, para investigar la posición taxonómica de los parásitos que pudieran estar presentes en los tejidos musculares de la merluza, así mismo, se averiguo la existencia de alguna relación entre la presencia del o de los parásitos, con el reblandecimiento degenerante de los músculos de la merluza.

Evaluación de una técnica de aglutinación simple para la detección de Entamoeba histolytica Schaudinn, 1903 (Protozoa : Endamoebidae)

Tesis (Maestría en Ciencias con Especialidad en Parasitología) UANL

Ultraestructura de una nueva especie de Myxobolus y Hennegu ya exilis (Myxospora : myxobolidae)

Tesis (Maestría en Ciencias, Especialidad en Parasitología) UANL

Aislamiento e identificación de Ichthyophonus hoferi en peces de importancia comercial del noreste de México

Tesis (Maestría en Ciencias con Especialidad en Parasitología) UANL

Helmintos parasitos de la Curvina Sciaenops ocellate (Linneo), Trucha pinta Cynoscion nebulosus (Curier) y Trucha blanca Cynoscion arenarius (Ginsburg) de la Laguna Madre municipio de San Fernando, Tamaulipas

Tesis (Maestría en Ciencias con Especialidad en Parasitología) UANL

Análisis Taxonómico de microsporidios de penaeus vannamei cultivado en algunas granjas del sur de Sinaloa.

Tesis (Maestría en Ciencias con Especialidad en Parasitología) UANL

Evaluación de la respuesta ovulatoria en un programa de ovulación multiple para ganado especializado en la producción lechera

Tesis (Maestría en Ciencias en Producción Animal) UANL

Epizootiología de las enfermedades detectadas en el cultivo de camarón azul Litopenaeus stylirostris en el parque acuícola El Siari, Sonora, México

Tesis (Maestría en Ciencias con Especialidad en Parasitología) UANL

Análisis de las comunidades parasitarias y su relación con la condición física del guajolote silvestre (Meleagris gallopavo) de la Sierra del Burro, Coah., México

Tesis (Maestría en Ciencias con Especialidad en Parasitología) UANL

Patologías inducidas por la infección natural del virus de la Mancha Blanca (WSSV) en epizootias de camarón blanco Litopenaeus vannamei Bonne (Crustácea: Decápoda) registradas en la granja de la Sociedad Cooperativa de Producción Pesquera Ejidal El Patage, en el Dorado, Sinaloa, México

Tesis (Maestría en Ciencias Biológicas con Especialidad en Parasitología) UANL