2020 ◽  
pp. 7-10
Author(s):  
Vasiliy P. Petropavlovsky ◽  
◽  
Vyacheslav V. Marchenko ◽  
Lyudmila S. Vikulova ◽  
Olga D. Chepeleva ◽  
...  

Summary. Data on distribution of hypodermatosis among large horned cattle in Stavropol region are presented in the article. It was proved that this pathology is widespread in this region. From 12% to 38% of animals from the total number of examined livestock are affected. Ordinary subcutaneous botfly (stroma) Hypoderma bovis de Geer and south subcutaneous botfly (pischevodnik) Hypoderma lineatum de Villers parasites on large horned cattle. The species ratio of gadflies is: Hypoderma bovis (de Gee - 61.1%, Hypoderma lineatum de Villers - 38.9%). The disease is widespread in all climatic zones of Stavropol region. Animals of all age and sex groups are infected, but young animals are more often affected. Linear relationship between the indicators of the transformation of climatic conditions in Stavropol region, the spread of hypodermatosis and the timing of treatment and preventive measures were determined. Authors proved that the complete death of H. bovis and H. lineatum imago (regardless of the time of their hatching) was noted when the temperature drops to -3°C for two days. Thus, this temperature determines the start of treatment and preventive measures against hypodermatosis in the area of animal welfare. When analyzing the histomorphological changes caused by H. bovis and H. lineatum in the body of large horned cattle, perforation of the skin, swelling of adjacent tissues, disorganization of the stroma and structural elements, erythrocyte aggregation, hemorrhages, hydropic degeneration of cellular elements, tissue necrosis, polymorphonuclear leukocyte infiltration of affected organs and tissues were observed. The data on pathogenesis were presented, the analysis of economic damage and the veterinary and sanitary assessment of the products of slaughter of cattle with hypodermatosis were carried out.


Parasitology ◽  
1925 ◽  
Vol 17 (2) ◽  
pp. 173-175 ◽  
Author(s):  
Par Émile André

En Europe, les cas de myiase cutanée humaine ne semblent pas être d'une grande rareté et la littérature en mentionne un certain nombre, mais les auteurs qui les ont publiés out souvent négligé de donner une description détaillée des larves, de sorte qu'il est parfois difficile d'établir entre elles les comparaisons nécessaires à leur identification. Il est opportun de multiplier les dessins et les descriptions pour arriver, en les collationnant, à dégager les caractères différentiels des larves jeunes de certaines espèces d'Oestrides. C'est pour ces raisons que nous décrirons et figurerons une larve que nous avons eu récemment 1'occasion d'examiner, larve qui s'etait développée sous la peau derrière 1'oreille, chez une jeune fille de la Haute-Savoie (France). Nous la considérons comme une larve au stade B de l'Hypoderma bovis (de Geer), provisoirement peut-être, car elle ne correspond pas exactement aux descriptions qui ont été données pour cette espèce par Brauer, Joly, Topsent et Condorelli. Les indications de ces auteurs diffèrent par plusieurs points, en particulier par la disposition des bandes épineuses. Mais il s'agit là, semble-t-il, d'un caractère éminemment variable, d'autant plus que Phibbs a constaté que, chez les larves au stade C, la répartition des ilots épineux peut varier d'un individu à 1'autre; il est done assez vraisemblable que cette variabilité peut exister déjè au stade B. Admettant que la disposition des bandes et des ilots épineux n'est pas constante, nous avons done considéré la larve qui fait l'objet de ces lignes comme appartenant à l'Hypoderma bovis (de Geer).


PEDIATRICS ◽  
1979 ◽  
Vol 64 (1) ◽  
pp. 88-89
Author(s):  
Gary Preiser ◽  
Thomas E. Lavell ◽  
William F. Dorsey

A case of myiasis due to the northern cattle grub (Hypoderma bovis) in a 2½-year-old girl presenting as cellulitis of the cheek and periorbital cellulitis is detailed in this report. A literature review of similar cases reported over the past five years is included.


1991 ◽  
Vol 3 (4) ◽  
pp. 355-356 ◽  
Author(s):  
Tjaart W. Schillhorn van Veen ◽  
Tom P. Mullaney ◽  
Al L. Trapp ◽  
R. Flint Taylor
Keyword(s):  

1989 ◽  
Vol 124 (10) ◽  
pp. 243-244 ◽  
Author(s):  
I. Sinclair ◽  
D. Tarry ◽  
D. Wassall

1960 ◽  
Vol 38 (3) ◽  
pp. 565-574 ◽  
Author(s):  
R. H. Gooding ◽  
J. Weintraub

The genitalia of the females and males of Hypoderma bovis and H. lineatum are described and illustrated. There are only slight differences in the genital structures of the two species. Differences in descriptions of the females by previous authors are resolved. The structures of the male genitalia are renamed in light of the hypopygium circumversum.In a developmental series of H. bovis puparia the definitive form of the male genitalia (hypopygium circumversum) was reached after 19 days at 20 °C. One 38-day-old specimen was exceptional, having developed only to the hypopygium inversum stage. A comparison of the musculature and sclerites in the series indicated that the progenital plate is composed of either the fused seventh and eighth terga or the fused eighth tergum and ninth sternum. The specimens used in the series included the one anomalous pupa featuring the hypopygium inversum (180°) and several with the final (360°) and intermediate (270°) stages of the hypopygial rotation.


1969 ◽  
Vol 101 (5) ◽  
pp. 463-466 ◽  
Author(s):  
C. C. Steward

AbstractCattle grubs, first-instar larvae of Hypoderma bovis (L.), were removed from nine slaughtered heifers. Two of these heifers had previously been treated with coumaphos, three with Ruelene, and two with trichlorfon. The remaining two heifers were not treated with insecticides and served as sources of control grubs. The grubs, after removal from the hosts and fixation in formalin, were incubated with one of the two cholinesterase substrates, acetylthiocholine iodide or 5-bromoindoxyl acetate. Cholinesterase was completely inhibited in the central nervous systems of the grubs whose hosts were treated with Ruelene. This inhibition was also virtually complete in grubs from heifers treated with trichlorfon and was usually complete in those from the heifers treated with coumaphos. This is presented as histochemical evidence that the three systemic insecticides inhibit the cholinergic enzymes in the grubs, thus causing them to die while still in the body of the host.


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