An apparently pharyngeal myiasis in a patient caused by Oestrus ovis (Oestridae: Diptera).
Explore the source record for details and available documents.
Aged↗
Biomedical subjects
I Yeruham
Publications and source records attributed to I Yeruham.
An apparent flea-allergy dermatitis in kids and lambs.
Heavy infestation of lambs in two herds and kids in one herd with the cat flea, Ctenocephalides felis felis, accompanied by severe anaemia, eosinophilia and exudative dermatitis, is described. Flea infestation was more widespread during the summer months, when optimal climatic conditions for flea development prevail. The clinical and histological findings are discussed in the light of the pertinent literature. Recovery of the affected animals and normalization of the haematological values were observed after the insecticide treatment. Flea-allergic dermatitis is apparently the cause of the skin lesions in the lambs and kids.
Anemia↗
Clinical and epizootiological study of a leptospirosis outbreak due to Leptospira canicola in a feedlot.
This report describes the epizootiology, clinical presentation, diagnosis and treatment of an outbreak of leptospirosis caused by Leptospira canicola in feedlot calves. The infection appeared to be of high morbidity with a cumulative clinical incidence of 15.6%, cumulative subclinical incidence of 39% and high mortality (8.3%). Clinical disease was diagnosed in 4-8-month-old calves, while subclinical infection occurred in 9-12-month-old calves. Subclinical infection was based on serological evidence only. The zoonotic aspects of the infection are emphasised.
Animal Feed↗
Nitrate toxicosis in beef and dairy cattle herds due to contamination of drinking water and whey.
Four cases of rarely reported nitrate toxicosis due to contamination of drinking water or whey were recorded in 2 beef and 2 dairy cattle herds. In the cases associated with water contamination, water containing ammonium nitrate as a fertilizer for irrigating orchards accidentally entered drinking water troughs for cattle through malfunctioning 1-way valves. The whey contamination in 1 instance was caused by transportation in containers which contained traces of concentrated ammonium nitrate; the 2nd case was induced by whey derived from the production of a specialty cheese produced by the incorporation of nitrate. Mortality occurred in 2 herds and abortions in the 2 other herds. Affected cows responded well to treatment, but some animals remained in a deteriorated physical condition for several months.
Animal Feed↗
Effect of passage of Babesia ovis in the gerbil (Acomys cahirinus) on the course of infection in splenectomized lambs.
Splenectomized gerbils (Acomys cahirinus) have been found to be susceptible to Babesia ovis applied via blood inoculation, whereas intact gerbils were not infected. Blood from splenectomized latently infected gerbils caused infection in a splenectomized lamb. Intact Acomys cahirinus gerbils did not become infected by B. ovis, and all captured rodents in an enzootic area, intact and splenectomized, were found to be negative for B. ovis. It can thus be concluded that Acomys cahirinus does not serve as a natural reservoir for B. ovis.
Animals↗
Self destructive behaviour in dairy cattle.
Explore the source record for details and available documents.
Animals↗
The seasonal occurrence of ticks (Acari: Ixodidae) on sheep and in the field in the Judean area of Israel.
A 2 year survey of ixodid ticks in the Judean area of Israel between 1983 and 1985 showed that sheep were parasitized by the following species: Rhipicephalus sanguineus group (30.6%), Rhipicephalus bursa (25.3%), Haemaphysalis cretica (20.5%), Haemaphysalis otophila (20.1%) and Hyalomma anatolicum excavatum (3.1%). Three other species, Hyalomma marginatum rufipes, Boophilus annulatus and Amblyomma lepidum were also present but in very low numbers. A total of 50,816 specimens (78.1% adult ticks) were collected from the sheep. In the field, a total of 4780 ticks (8.7% adults) were collected and 64.3% consisted of R. bursa. Other species found were H. cretica (14.5%), H. a. excavatum (13.7%), H. otophila (3.4%), R. sanguineus group (1.9%) and 1.7% was Ixodes eldaricus. The number of ticks collected varied from year to year and seasonal activity was observed in all species except for H. a. excavatum. In all species, males outnumbered females, with the exception of H. cretica. The seasonal occurrence, tick ecology and disease relationship is discussed for each species.
Acari↗
Ctenocephalides felis flea infestation in horses.
The horses were in two stables: in the first stable they were kept together with sheep and in the second stable they were kept together with goats. All horses in both stables were diagnosed as being infested with the cat flea Ctenocephalides felis felis. Foals were severely infested, whereas adult horses were only moderately infested.
Aging↗
Skin tumours in cattle and sheep after freeze- or heat-branding.
This article describes the occurrence of carcinogenic epidermal neoplasia (papillomas and squamous cell carcinoma) at the sites of tattooing with liquid nitrogen in dairy cattle, and squamous cell carcinoma at the sites of freeze- or heat-branding in beef cattle and sheep.
Animal Identification Systems↗
Mastitis in dairy cattle caused by Corynebacterium pseudotuberculosis and the feasibility of transmission by houseflies. I.
Morbidity due to Corynebacterium pseudotuberculosis infection occurred in 29 dairy herds. The disease appeared basically in three clinical forms: cutaneous, mastitic, and visceral. The appearance of the disease showed a marked seasonality: in 23 herds it occurred during the spring and summer months (dry season) (March-October). The mastitic form occurred in only 10 herds and the causative bacterium was isolated from 33 cows (5.8%). All the strains of C. pseudotuberculosis isolated from the milk samples were found not to be nitrate reducers. The bacterium was excreted in the milk of six cows from herd B during a period of 11 months. In the mastitic cows, a decrease in milk production and considerable increases in the somatic cell count were noted. C. pseudotuberculosis was isolated from houseflies collected over a cow lesion. Laboratory-reared houseflies were successfully infected with C. pseudotuberculosis-contaminated milk, broth and sugar cubes. Flies infected with the bacterium from contaminated milk excreted the bacterium in their droppings for up to 4 h and from their saliva for up to 3 h post infection. The bacterium survived on the external organs of houseflies for no longer than 10 min post infection, after the flies had been dipped in contaminated broth.
Animals↗
Outbreak of dermatophilosis in a horse herd in israel.
A retrospective study of an outbreak of dermatophilosis in a herd of 18 adult horses and 13 foals, in Israel, is presented. To the best of our knowledge this is the first time such an outbreak has been reported from a country in the Mediterranean climatic zone. This outbreak might be associated with exposure of the horses to water and humidity as a result of excessive rainfall in November 1994, as well as intensive washing of the horses and a long period spent by the animals in a marshy manege.
Actinomycetales↗
Sarcoptic mange in wild ruminants in zoological gardens in Israel.
Sarcoptic mange (Sarcoptes scabiei) occurred among wild ruminant species in five zoological gardens in Israel, from 1984 to 1994. Infestation of five ruminants by S. scabiei is reported for the first time: mountain gazelles (Gazella gazella), Nubian ibexes (Capra ibex nubiana), a barbary sheep (Ammotragus lervia), elands (Taurotragus oryx), and an Arabian oryx (Oryx leucoryx). All animals in the herds were administered ivermectin orally at a dose of 200 micrograms/kg body weight daily for 3 consecutive days. This was repeated three times at 2-wk intervals. The disease was eradicated in four small zoos, whereas in the biggest zoo, only control was achieved. Mortality among animals < 4 mo and > 8-yr-old animals composed 65% of mortality among all age classes.
Administration, Oral↗
Occurrence of cowpox-like lesions in cattle in Israel.
Two different clinical forms of cowpox infection, which occurred sporadically in one dairy herd and one beef herd, are described. The agent was identified by virologic test and by electron microscopy, when a characteristic orthopoxvirus was noted. No systemic illness was diagnosed with any of the two forms and recovery was observed in 3-4 weeks. The epizootiology of the infection is discussed.
Animals↗
Spread of lumpy skin disease in Israeli dairy herds.
Fourteen of the 17 dairy herds in Peduyim, an Israeli village, became infected with lumpy skin disease during a period of 37 days in August and September 1989. One cow in one neighbouring village and four cows in another neighbouring village also became infected, probably through being treated by a veterinarian who treated cows in Peduyim. Circumstantial evidence suggests that the original infection was brought to Peduyim and spread by stable flies (Stomoxys calcitrans) carried by the wind from foci of the disease at El Arish in northern Sinai, or at Ismailiya and the Nile delta in Egypt. All the cattle and the small flocks of sheep and goats in the village were slaughtered.
Animals↗
A study of an enzootic focus of sheep babesiosis (Babesia ovis, Babes, 1892).
Morbidity and mortality due to Babesia ovis in sheep flocks grazing in an enzootic area of Israel occur yearly, about 2 weeks after detection of adult Rhipicephalus bursa ticks on the animals. Disease incidence peaks in May, but lasts throughout the active period of the adult ticks in the spring-summer months of April-July. No clinical cases of babesiosis have been registered during the active period of the preimaginal stages of R. bursa, from October to February. Incidence of parasitaemia during the spring-summer months was variable, ranging between 2 and 25%. However, in the winter months the incidence of parasitaemia in hoggets increased considerably, reaching 4-60% of the animals. A positive serological response to B. ovis was found in 84.5% of the hoggets and 88.9% of the ewes. In ewes, the prevalence of the serological response showed no marked seasonal variations. Colostral sera of 67.5% and 75% of the ewes and hoggets, respectively, were serologically positive for B. ovis. No antibodies were detected in the sera of lambs less than 3-4 months of age. The epizootiology of sheep babesiosis appears to differ from that of bovine babesiosis.
Animals↗
The daily distribution and circadian rhythm of detachment of engorged Rhipicephalus bursa ticks from lambs and rabbits.
Explore the source record for details and available documents.
Animals↗
Skin diseases in a Merino sheep herd related to an excessively rainy winter in a Mediterranean climatic zone.
A retrospective study is presented here in which an outbreak of dermatophilosis and morbidity of fleece rot in a sheep herd grazing throughout the year in the Carmel hills are described for the first time in a Mediterranean climatic zone. Both diseases were closely related to intense and prolonged rains during the winter months of 1991/1992. Morbidity of dermatophilosis appeared after 650 mm and that of fleece rot after 1320 mm of precipitation. The pathogenesis of these diseases is discussed.
Animals↗
A survey of dermatophilosis in Israeli dairy cattle.
In Israel, dermatophilosis was found to inflict severe lesions, especially in first-calving cows during the first weeks post-parturition. Decreased milk production (by 40% on average) was also noted. Acute exudative dermatitis was observed in these animals. Severely reacting animals (570 in 38 kibbutz herds and 15 animals in 4 family herds) were treated with antibiotics. All these animals also suffered either from endometritis/metritis or mastitis. The "tumoral" form of dermatophilosis was observed on 3-week-old or younger calves. Dermatophilosis was especially prevalent (89.4%) in dairy herds in which intensive showering of lactating cows is practised during the spring and summer months, in comparison to the family herds where the morbidity rate was lower (6.6%). Morbidity rates were found to be higher in the humid Mediterranean Coastal Plain (66.3%) than in the arid or semi-arid regions (Negev and Arava Valley) of Southern Israel (3.7%). Five clinical forms of dermatophilosis and the epizootiological aspects of the disease in Israeli dairy herds are described. It is concluded that a reduction in the prevalence of dermatophilosis could be achieved by decreasing the frequency and the intensity of showering currently applied under the kibbutz management system.
Actinomycosis↗