Ocurrencia de miasis cavitaria equina (Gasterophilus Spp) y su relación con las úlceras gástricas secundarias en la mucosa escamosa en Temuco, Chile

Abstract

Cardona JA et al. Ocurrencia de miasis cavitaria equina (Gasterophilus Spp) y su relación con las úlceras gástricas ¤ Para citar este artículo: Cardona JÁ, Álvarez A, Paredes E. Ocurrencia de miasis cavitaria equina (Gasterophilus Spp) y su relación con las úlceras gástricas secundarias en la mucosa escamosa en AbstractThe aim of this study was to determine the ocurrence of equine cavitary myiasis (Gasterophilus spp) in the CholChol slaughtering house in Temuco, Chile and its relation with the presentation of secondary gastric ulcers in the non-glandular squamous mucosa of the horses' (Equus caballus) stomachs. Of 240 stomachs evaluated post mortem, 145 were selected and characterized as positive to gasterophilosis (60.4%), of which 75 were males (20 stallions and 55 geldings) and 70 were mares, with ages ranging from 1 to 16 years. Every stomach was evaluated, characterized and photographed post mortem. Information about sex, age, location of the Gasterophilus larvae, presence and degree of ulceration of the squamous mucosa, were recorded in the respective forms and posteriorly digitalized. Global analysis of the location of larvae in the stomach of horses positive to gasterophilosis, established that 91.7% were located in the glandular mucosa, while 8.3% were located in the squamous mucosa. In the stomachs with presence of larvae in the antral/piloric regions of the glandular mucosa, 87.6% had secondary ulcers in the nonglandular squamous mucosa, due to the increase in the gastric fill line following alterations in gastric emptying, of which 69% were classified in categories 3 to 4 with a number of larvae higher tan 30, while 18.6% were found in categories 1 or 2 with less than 30 larvae per site. Regarding the location of larvae in the squamous mucosa, 8.3% of the stomachs showed primary mechanic ulcers, all classified between grades 1 and 2. Of all the animals evaluated, 62.1% had more tan 60 larvae, of which 60.1% had grade 3 or 4 secondary squamous ulcers, 15.9% had between 30 and 60 larvae per site, and 14.5% had less than 30 larvae per site. The study showed significant statistical dependence (p<0.05) between the number of larvae located in the glandular mucosa and the degree of severity of the secondary gastric ulcers in the squamous mucosa. Concluding, a high ocurrence of cavitary gastric myiasis was observed in slaughtering horses in the south of Chile, with squamous ulcers secondary to abnormal gastric emptying being the

Gastroscopic characterisation and prevalence of gastric ulcer syndrome in working mules in Colombia

“…in the gastroscopic examination. Although these parasites are considered to be MGUS‐inducing 17,33 and were present in several mules, did not prove to be a factor associated, the frequency and severity of this syndrome was not higher than those reported for horses in the same region, which confirmed the aforementioned distinctive characteristics that have been attributed anecdotally in comparison with horses and donkeys.…”

Determinación de Helicobacter spp. en mucosa gástrica glandular de mulas a través de la prueba de la actividad de la ureasa e histopatología

“…Las ulceraciones gástricas se consideran de naturaleza multifactorial, donde factores inherentes al animal, como sexo, raza, edad, temperamento, al igual que factores extrínsecos, como manejo alimentario, estabulación, administración de antiinflamatorios no esteroideos (AINE), tipo e intensidad del ejercicio y entrenamiento y eventos estresantes, se han implicado como factores predisponentes al generar desequilibrio entre los mecanismos de defensa de la mucosa gástrica y los agentes agresores tanto endógenos como exógenos (Banse y Andrews 2019;Martínez y Silveira 2014;Martínez et al 2015;Murray y Eichorn 1996;Padalino et al 2020;Pedersen et al 2018). Adicionalmente, microbiota, bacterias ácido-resistentes, metabolitos bacterianos y parásitos (Gasterophilus spp., Habronema spp) también son señalados de ocasionar lesiones en la mucosa gástrica (Al-Mokaddem et al 2014;Andrews et al 2006;Cardona et al 2016).…”

Prevalence of Gastrointestinal Parasites in Horses of Central Mexico

“…Depending on the species and parasitic load, it is possible to determine if it is advisable or not to carry out deworming [6]. Clinical signs can be, weight loss, dysphagia, colic manifestations caused by gastric and intestinal ulceration and in some cases, perforating ulcers, gastric obstruction volvulus, diarrhea, as well as induced anemia, amongst other complications [7].…”