Estudio epidemiológico de Anisakis tipo I en la bacaladilla (Micromesistius poutassou) del noroeste de España / Epidemiological study of Anisakis type I in blue whiting (Micromesistius poutassou) captured in northwestern Spain

Se ha estudiado la parasitación por Anisakis tipo I en 119 bacaladillas (Micromesistius poutasou) capturadas en el noroeste de España. La prevalencia total encontrada ha sido del 100% y la intensidad y abundancia medias de 55,89. También, se ha determinado los parámetros de infección en cavidad corporal, y musculatura hipoaxial e epiaxial. El mayor número de larvas aisladas ha correspondido a las vísceras (4808) y el menor a la musculatura epiaxial (343). Se ha observado un incremento de los parámetros de infección de acuerdo con la longitud del pez, siendo la intensidad y abundancia mediasde 32,47 para los peces entre 24-25 cm, de 57,00 para los de 26-27 cm y de 85,84 en los ≥ 28 cm de longitud(AU)

We have studied the parasitization by Anisakis type I in 119 blue whiting (Micromesistius poutasou)captured in Northwestern Spain. The overall prevalence found has been 100%, the mean values of intensity and abundance have been 55.89. The infection parameters have also been identified in the body cavity, and in hipoaxial and epaxial muscle. The highest number of isolated larvae has corresponded to the viscera (4808) and the lowest in the epaxial musculature (343). There has been anincrease in infection parameters according to the length of the fish, being the mean intensity and abundance 32.47 for fish between 24-25 cm, 57.00 for 26-27 cm and 85.84 in those ≥ 28 cm of length(AU)

Nuevo foco de infección de Oxyspirura mansoni en gallos de pelea de municipios del estado Zulia Venezuela / New focal infection of Oxyspirura mansoni in gamecock of Municipalities of Zulia state Venezuela

El propósito de esta investigación fue determinar la existencia de un foco de infección de Oxispirurosis cuyo agente etiológico es un nematodo Thelazzidae: Oxyspirura mansoni (Cobbold, 1879). Este nematodo es responsable de la filariosis ocular de las aves. Este estudio se refiere a gallos de pelea ubicados en los siguientes municipios: Maracaibo, San Francisco, Mara y Jesús Enrique Lossada del estado Zulia. Venezuela. Estos parásitos están localizados debajo de la membrana nictitante de los ojos ocasionando absoluta ceguera. En el presente estudio el muestreo fue tomado de gallos de pelea de cuatro Municipios para un total de 630 aves. En una gallera del municipio Maracaibo, sector La Rotaria, 50,77 por ciento de los animales evaluados resultaron positivos. Los parásitos fueron extraídos directamente de los ojos después de haberles colocado una gota de ivermectina solución oftálmica (1 por ciento), mientras que otra gallera ubicada en el sector Delicias, 20 por ciento de las muestras de las aves estuvieron positivas; en una gallera del sector Lacteos San José, los animales estaban negativos; en el municipio San Francisco y en el sector Los Cortijos, 32 por ciento de las aves resultaron positivas. En el municipio Jesús Enrique Lossada las aves muestreadas resultaron negativas y en el municipio Mara, sector Los Lirios, 35 muestras resultaron negativas. Fueron colectadas numerosas cucarachas en las jaulas de los gallos infectados, identificadas y clasificadas: en el Orden: Dictyoptera, Suborden: Blattaria, Familia Blattidae, especie: Picnoscelus surinamensis, designada hospedador intermediario, la disección demostró larvas del nematodo Oxyspirura mansoni en la cavidad general. En las galleras negativas no estuvieron presentes los insectos. Se concluye que la cucaracha colectada en las galleras es la misma especie (Picnoscelus surinamensis) asociada con la enfermedad del primer trabajo reportado, pero las lesiones de las aves fueron relativamente moderadas.

The purpose of this research was to determine the existence of the source of an Oxispirurosis infection which ethiological agent is a nematode known as Thelaziidae: Oxyspirura mansoni (Cobbold, 1869). This nematode is responsible of ocular filariosis of birds. This study is related with gamecock birds located in the following Municipalities: Maracaibo, San Francisco, Jesus Enrique Lossada and Mara of Zulia State, Venezuela. These parasites are located under the nictitante membrane of the eye causing an absolute blindness. In the present study samples were taken from cocpits of four Municipalities of Zulia State with a total of 630 gamecock birds sampled. In Maracaibo, La Rotaria sector, 50.77 percent of evaluated animals were positive. The parasites were directly extracted from the eyes after treatment with an ivermectine ophthalmic solution (1 percent). In other cockpits located in Las Delicias sector, 20 percent of sampled birds were positive. In the San Francisco Municipality, Los Cortijos sector, 32 percent of sampled birds were positive, while in the second cockpit Lacteos San Jose the animals were negative. In the Jesús Enrique Lossada Municipality, all sampled birds resulted negative; in the Mara Municipality, Los Lirios sector, all 35 samples were negative. Were found in the cages of the gamecock birds that were positive, many cockroachs were identify and classified (Dictyoptera, Blattaria, Blattidae, specie: Picnoscelus surinamensis).This cockroach has been designated as the intermediary host. Larvae of nematode Oxyspirura mansoni were found in the general cavity of the cockroach. In the negative cockpits, the cockroachs were not present. It was concluded that the same cockroach species (Picnoscelus surinamensis) is associated with the disease as in previous work, but the degree of the lesions was relatively moderated.

Measurement of serum amyloid A in the neonatal foal using a latex agglutination immunoturbidimetric assay: determination of the normal range, variation with age and response to disease.

This paper describes the use of a latex agglutination assay to measure serum amyloid A (SAA) in the neonatal foal. The normal range and response to clinical disease was determined. This retrospective study evaluated SAA concentrations over the first 3 days postpartum of 226 Thoroughbred foals judged to be clinically healthy. The normal range for each day was determined; levels were found to be significantly highest on Day 2 (Day 1 vs. Day 2 P<0.0001). The 95th percentile for Days 1-3 was 27.1 mg/l. Clinical records of 133 foals, presented as first or second opinion cases, were evaluated. Foals were divided into 4 groups; septicaemia (S), focal infection (FI), failure of passive transfer (FPT) and noninfectious disease (NI). There was a statistically significant difference (P<0.0001) between SAA concentrations of control foals compared to Groups S and FI. There was no statistically significant difference between controls and Groups FPT and NI. When Group NI was compared to Groups S and FI, there was a statistically significant difference (P<0.0001). The authors suggest that SAA determined by this latex agglutination assay might be a helpful aid in the diagnosis of septicaemia and focal infection in neonatal foals; levels >100 mg/l are highly suggestive of infection in young foals.

Focal eosinophilic proctitis with associated rectal prolapse in a pony.

Focal intramural nodules were palpated in the rectal wall of a 12-year-old pony mare presented for rectal prolapse. Eosinophilic proctitis was diagnosed by examination of fine needle aspirates and biopsy of the largest rectal nodule. After treatment with a course of corticosteroids, the rectal nodule and accompanying peripheral eosinophilia resolved. There was no recurrence of the condition during the follow-up period of 20 months. Focal eosinophilic proctitis appeared to be an unusual cause of tenesmus and rectal prolapse in this case.

Paralysis in swine due to focal symmetrical poliomalacia: possible selenium toxicosis.

A paralytic disease in swine was observed on three farms located in the same geographical area of Georgia. Postmortem examinations revealed the paralysis to be related to spinal poliomalacia. Feed collected from two of the affected farms was used in a feeding study, and the paralytic condition was reproduced. In pigs from both the feeding trial and field cases, the poliomyelomalacia was characterized by focal, symmetrical lesions located in the cervical and lumbar intumescences. Selenium was detected in the feed at levels ranging from 19 to 24 ppm.