Experiments in hybridizing the warble flies Hypoderma lineatum (de Villers) and H. bovis (Linnaeus) (Diptera: Oestridae)

1968 ◽  
Vol 46 (2) ◽  
pp. 129-133 ◽  
Author(s):  
J. Weintraub ◽  
R. H. Robertson ◽  
R. H. Gooding
Keyword(s):  
Embryonic Development ◽  
Hypoderma Lineatum ◽  
Viable Offspring ◽  
Hypoderma Bovis

The taxonomic characters in about 23% first- and 8% second-instar larvae of Hypoderma bovis (Linnaeus) and H. lineatum (de Villers) collected in nature were sufficiently aberrant to suggest hybridization. However, similar aberrations were found in larvae from known intraspecific matings.Measurements of genitalia indicated no morphological barrier to cross-mating. Cross-mating in both directions was achieved in the laboratory with transfer of active sperm to the spermathecae. None of the eggs laid by cross-mated females showed embryonic development. The possibility is discussed of eradicating warble fly populations by encouraging cross-mating to produce non-viable offspring.

Bovine hypodermatosis in Stavropol region: distribution, pathogenesis, veterinary and sanitary assessment of slaughter products

2020 ◽  
pp. 7-10
Author(s):  
Vasiliy P. Petropavlovsky ◽  
◽  
Vyacheslav V. Marchenko ◽  
Lyudmila S. Vikulova ◽  
Olga D. Chepeleva ◽  
...  
Keyword(s):  
Preventive Measures ◽  
Climatic Conditions ◽  
The Body ◽  
Erythrocyte Aggregation ◽  
Economic Damage ◽  
Hydropic Degeneration ◽  
Hypoderma Lineatum ◽  
Hypoderma Bovis ◽  
Stavropol Region ◽  
Histomorphological Changes

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.

OBSERVATIONS ON THE HISTOPATHOLOGICAL CHANGES CAUSED BY THE LARVAE OF HYPODERMA BOVIS (L.) AND HYPODERMA LINEATUM (DE VILL.) (DIPTERA: OESTRIDAE) IN TISSUES OF CATTLE

1959 ◽  
Vol 39 (2) ◽  
pp. 145-157 ◽  
Author(s):  
L. S. Wolfe
Keyword(s):  
Connective Tissue ◽  
Plasma Cells ◽  
Fibrous Tissue ◽  
Ground Substance ◽  
Collagen Fibres ◽  
Hypoderma Lineatum ◽  
Cellular Debris ◽  
Hypoderma Bovis ◽  
Epidural Fat ◽  
Suppurative Inflammation

The lesions in submucosal and adventitial connective tissue of the oesophagus of cattle caused by the migrating larvae of Hypoderma lineatum (De Vill.), consist of pseudocystic areas and tracks of a gelatinous fibrinous exudate containing necrotic cellular debris and collagen fibres in various stages of dissolution surrounded by accumulations of eosinophils and lymphocytes. The larvae feed on the dissolved connective tissue. These changes suggest that migration through the tissues is mainly by enzymic dissolution of collagen fibres and ground substance. Similar changes were found in the connective tissue surrounding the muscles of "licked beef". The larvae of H. bovis (L.) in the epidural fat cause areas of fat necrosis and sometimes invade the periosteum and dura. The greenish colour of the tracks is due to infiltrations of eosinophils. The warble shows a mixed picture of chronic granulomatous and non-suppurative inflammation, encapsulated by dense fibrous tissue. The larva is surrounded by a vascular layer of granulation tissue infiltrated with eosinophils, large mononuclears and plasma cells. Numerous giant cell systems and pseudotubercles are present. The larvae feed on the exudate within the warble cavity. Areas of suppuration are rarely found. The healing of the warble and the reaction to dead larvae are described.

scholarly journals Cattle Grubs

EDIS ◽  
2006 ◽  
Vol 2006 (6) ◽  
Author(s):  
Phillip E. Kaufman ◽  
Philip G. Koehler ◽  
Jerry F. Butler
Keyword(s):  
United States ◽  
The United States ◽  
Publication Date ◽  
Immature Stages ◽  
Original Publication ◽  
Hypoderma Lineatum ◽  
Hypoderma Bovis ◽  
The Common

Cattle grubs (Figure 1) are the immature stages of warble flies or heel flies (Figure 2). Two species of cattle grubs occur in the United States -- the common cattle grub, Hypoderma lineatum, and the northern cattle grub, Hypoderma bovis. The common cattle grub is found in Florida; however the northern cattle grub is usually found in cattle shipped to Florida from other states. Recent observations have indicated that the northern cattle grub may be becoming established in Florida. This document is ENY-270 (IG126), one of a series of the Entomology and Nematology Department, UF/IFAS Extension. Original publication date: May 1995. Revised: March 2006. 

Warble Flies. A Further Contribution on the Biology of Hypoderma lineatum and Hypoderma bovis

Parasitology ◽  
1915 ◽  
Vol 7 (4) ◽  
pp. 331-338 ◽  
Author(s):  
Seymour Hadwen
Keyword(s):  
Areolar Tissue ◽  
Seasonal Activity ◽  
Hypoderma Lineatum ◽  
Hypoderma Bovis ◽  
Fly Larvae

The experiments with warble-fly larvae, taken in conjunction with the evidence of Carpenter and Gläser, lend support to the view that they gain an entrance through the skin.The hypothesis is advanced that the larvae select the gullet for reasons connected with their development and growth. These may be: a freer supply of oxygen, and a loose areolar tissue which offers comparatively little resistance to them.The position of the larva under the hide is horizontal. In this position the skin movements affect it but slightly, or less than if the position were perpendicular.H. lineatum does not terrify cattle as does H. bovis, the fly was seen ovipositing and the animals showed little uneasiness during the process.The seasonal activity of H. lineatum is earlier than that of H. bovis.Observations were made on oviposition which confirmed those of Riley and Gläser.Two experiments were tried with larvae, to see if they would penetrate the hide, but no definite results were obtained.Further proof is afforded of the terror which H. bovis inspires in cattle. It was observed that animals, exhausted by running, occasionally lay down and became more or less indifferent to the attacks of the fly. On these occasions the eggs were laid higher up on the host's body.

Shared Epitopes between the Soluble Proteins of Hypoderma lineatum and Hypoderma bovis First Instars

1990 ◽  
Vol 76 (6) ◽  
pp. 881 ◽  
Author(s):  
John H. Pruett ◽  
Philip J. Scholl ◽  
Kevin B. Temeyer
Keyword(s):  
Soluble Proteins ◽  
Hypoderma Lineatum ◽  
Hypoderma Bovis ◽  
Shared Epitopes

scholarly journals CATTLE HYPODERMATOSIS IN SOUTH TAJIKISTAN

2021 ◽  
pp. 494-498
Author(s):  
Sodatkhonova ◽  
Khudoidodov ◽  
Razikov
Keyword(s):  
Connective Tissue ◽  
Air Temperature ◽  
Climatic Conditions ◽  
Dense Population ◽  
Intensity Of Infection ◽  
Hypoderma Lineatum ◽  
Hypoderma Bovis

The article presents data on the infestation of cattle by subcutaneous gadflies in the southern regions of Tajikistan. It has been established that two species of subcutaneous gadfly parasitize in cattle – Hypoderma bovis and Hypoderma lineatum. The prevalence of gadfly larva in cattle is 11.4–31.1% and the intensity of infection is 2–21 specimens, and Hypoderma lineatum larva is 4.6–11.3% and the intensity of infection is 5–15 specimens of connective tissue capsules per animal, respectively. Connective tissue capsules Hypoderma bovis in the back area of animals appeared in late January and early February, and Hypoderma lineatum in late December and early January. Development of larvae under the skin of animals lasted on average 50–55 days. The release of the Hypoderma lineatum larva was noted in the second and third decades of February, and the gadfly in mid-March. The flying of the Hypoderma lineatum imago is from mid-April to the second decade of June, and the gadfly from the second decade of May to early July at an optimal air temperature of 18–25°C. This is due to the fact that there are favorable natural and climatic conditions in these areas for the development of larvae in the pupation stage and a fairly dense population of animals (cattle) per a hectare of pasture.

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