Electron microscopic detection of herpesviruses in a mass death of Greek tortoises (Testudo hermanni) and four-toed turtles (Agrionemys horsfieldii)     

H Lange  W Herbst  J M Wiechert  T Schliesser 《Tier?rztliche Praxis》1989,17(3):319-321

In a population of about 130 tortoises, consisting mainly of Hermann's tortoises (Testudo hermanni) and Four-toed tortoises (Agrionemys horsfieldii), 50% of the reptiles died within 3 months in autumn 1987. Post mortem analysis of 5 necropsied turtles revealed thick, caseous coatings in the upper digestive tract, hepatomegaly and enteritis. By microbiological examination a lot of ubiquitous bacteria could be isolated. By electron microscopy of concentrated and negatively stained gut specimens herpes virus particles were found in two Hermann's tortoises and one Four-toed tortoise. Isolation experiments in embryonic turtle tissue cultures showed no evidence of a cytopathogenic agent. The results are discussed in respect of their importance for the high mortality observed in the population of mediterranean land turtles.  相似文献   

Immunizing efficacy of Toxoplasma gondii strains isolated from different hostsEfficacite d'immunisation par differentes souches de Toxoplasma gondii isolees de differents hotes     

K.Noel Masihi  Hans Werner  Werner Lange 《Comparative immunology, microbiology and infectious diseases》1984,7(2):125-130

Studies were carried out to determine the fate of virulent Toxoplasma gondii challenge in immune animals. Toxoplasma strains isolated from human, swine, rabbit and cat hosts were used for the primary immunization of mice. Brains were removed at various intervals after the challenge and subinoculated into normal mice. Prior immunization with one of the nine toxoplasma strains enabled the mice either to eliminate or harbour the challenge organisms without loss of virulence. The outcome of challenge infection was dependent on the parasite strain used for the immunization and the time interval between challenge and subinoculation. Mice immunized with strain KSU isolated from a cat eliminated repeatedly administered challenge from 80% of animals. Strain S 162 isolated from a swine eliminated similar challenge from only 20% of animals. The results indicate that the extent of protection against virulent T. gondii can vary widely and is related to the immunogenicity of the original immunizing strain.  相似文献   

Canine cyclic hematopoiesis: blood gas and 2,3-diphosphoglyceric acid studies     

S Kraisha  R B Andrews  J H Evans  J B Jones  R D Lange 《American journal of veterinary research》1982,43(3):528-530

Cyclic hematopoiesis in gray Collies was first described in 1967. These dogs are anemic in comparison with the healthy littermates, and their erythropoiesis is abnormal. Although the basic disorder appears to be an as yet unidentified abnormality of hematopoietic progenitor cells, an inherent difference in responses to blood gas control mechanisms remains as a possible cause. In a study of these mechanisms in dogs with cyclic hematopoiesis, the P50 and 2,3-diphosphoglyceric acid concentrations were increased. Differences in pH, PCO2, PO2, and oxygen saturation were not observed.  相似文献   

Petrus Camper (1722-1789) and his work in veterinary science and animal anatomy     

A Lange 《DTW. Deutsche tier?rztliche Wochenschrift》1988,95(10):441-443

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Effects of Sarcocystis miescheriana infection on carcass quality and on the water-binding capacity of the meat of halothane-tested fattening pigs     

A Daugschies  M Rommel  T Schnieder  M Henning  E Kallweit 《Veterinary parasitology》1988,27(3-4):231-237

Ten halothane-positive pigs (stress sensitive, group A) and ten halothane-negative pigs (stress insensitive, Group C) with a mean body weight of 36 kg were each inoculated orally with 50,000 sporocysts of Sarcocystis miescheriana. Twelve halthane-positive pigs (Group B) and ten halothane-negative pigs (Group D) served as non-infected controls. Thirteen weeks post infection (p.i.) the lean: fat ratios of the pigs of the infected groups A and C were lower (A, 1:0.41 +/- 0.09; C, 1:0.50 +/- 0.10) than those of the pigs of the non-infected groups B and D (B, 1:0.50 +/- 0.08; D, 1:0.55 +/- 0.08). The back-fat thickness, the fat thickness 'A' and the fat thickness 'B' were thinner in infected pigs than in non-infected pigs. The difference in Lendenst?rkespeckquotient (Loin Fat Thickness Quotient) (LSQ) between infected and non-infected pigs was not statistically significant. The values of the water-holding capacity were lower in infected pigs than in non-infected pigs, the difference being statistically significant only in the halothane-negative groups (C, 0.45 +/- 0.02; D, 0.48 +/- 0.04). The water-absorbing capacity was significantly higher in the infected groups (A, 5.92 +/- 3.99%; B, 2.26 +/- 1.08%; C, 8.96 +/- 2.90%; D, 4.97 +/- 2.51%). In conclusion, it can be said that there was a slight tendency towards a better carcass quality and a better water-binding capacity in infected pigs, although this was combined with reduced growth rates.  相似文献   

Hygiene in the poultry farm     

K Lange 《Monatshefte für Veterin?rmedizin》1965,20(20):827-831

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Histological studies on the hypothalamic adenohypophyseal-gonadal system after mestranol and chlormadinone acetate administration in fattening bulls]     

W Schuffenhauer  W Lange 《Archiv fuer experimentelle veterinaermedizin》1978,32(1):147-154

Seventy-six young steers were examined to elucidate the action of the steroid oestrogen Mestranol and the gestagen chloromadinone acetate upon the morphology of hypothalamus, adenohypophysis, testes, and accessory sexual glands. The doses used were those applicable also to real animal husbandry. The mechanisms of action of the above pharmaceutical products are discussed against the background of the experimental results. No pathological alteration was observed that might prohibit application of the tested sexual steroids to young steers.  相似文献   

Autochthonous babesiosis in dogs in The Netherlands associated with local Dermacentor reticulatus ticks     

de Lange T  Nijhof A  Taoufik A  Houwers D  Teske E  Jongejan F 《Tijdschrift voor diergeneeskunde》2005,130(8):234-238

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Practical experience with the P. Rommel pregnancy test with mares     

K Huhold  H Lange 《Monatshefte für Veterin?rmedizin》1967,22(24):968-972

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The incidence of Brucella melitensis in animals in Syria     

R Hirchert  W Lange  H G Leonhardt 《Berliner und Münchener tier?rztliche Wochenschrift》1967,80(3):45-47

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