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51.
Schrader Gritta Hauser Barbara Bahadir Müfit Larink Otto 《Water, air, and soil pollution》2001,128(3-4):401-406
Water, Air, &; Soil Pollution - A filter dust of a waste incineration plant provided for underground disposal was elutriated with three different elutriation media possibly be found in... 相似文献
52.
Genetic diversity, inbreeding and breeding practices in dogs: results from pedigree analyses 总被引:2,自引:0,他引:2
Leroy G 《Veterinary journal (London, England : 1997)》2011,189(2):177-182
Pedigree analysis constitutes a classical approach for the study of the evolution of genetic diversity, genetic structure, history and breeding practices within a given breed. As a consequence of selection pressure, management in closed populations and historical bottlenecks, many dog breeds have experienced considerable inbreeding and show (on the basis of a pedigree approach) comparable diversity loss compared to other domestic species. This evolution is linked to breeding practices such as the overuse of popular sires or mating between related animals. The popular sire phenomenon is the most problematic breeding practice, since it has also led to the dissemination of a large number of inherited defects. The practice should be limited by taking measures such as restricting the number of litters (or offspring) per breeding animal. 相似文献
53.
54.
J Gr?ndalen 《Nordisk veterinaermedicin》1979,31(2):69-75
Occurrence, clinical and radiographical findings in ununited medial coronoid process in the ulna and osteochondritis dissecans in the humeral condyle in dogs are presented. One hundred and twelve dogs were examined because of forelimb lameness. Lesions were mostly seen in young dogs of heavy breeds especially the Rottweiler. The ratio male: female was about 2:1. Most of the dogs had bilateral lesions. The lameness varied between grade 1 and 3, judged according to a scale ranging from 1 to 5. The affected limbs were somewhat rotated outwards from the elbow and down. Since the ununited coronoid process is almost impossible to detect on a plain radiograph, it is necessary to look for the presence of secondary developed osteophytes, indicative of an arthrosis. Diagnosis is based upon clinical and radiographical findings, the age and the breed of the dog taken into consideration. Osteochondritis dissecans in the humeral condyle is usually easily seen on the dorsopalmar radiograph. 相似文献
55.
M L Bruss Y Gr?hn E M Huffman L A Lindberg 《American journal of veterinary research》1986,47(2):336-341
Sodium propionate (3 mmol/kg) was injected IV into 8 nonlactating dairy cows before and after 6 days (144 hours) of fasting. During fasting, long-chain fatty acids in plasma increased from 0.30 +/- 0.05 (SE) mM to 1.09 +/- 0.15 mM (P less than 0.05). Liver fat increased from 0.5 +/- 0.3% to 9.3 +/- 1.7% (P less than 0.05). Half-life of injected sodium propionate increased significantly (P less than 0.05) from 7.6 +/- 0.5 minutes to 10.1 +/- 1.0 minutes during fasting. Sulfobromophthalein half-life did not change significantly (3.8 +/- 0.79 minutes to 5.3 +/- 1.3 minutes). Increases in plasma glucose concentrations after propionate loading were significantly less during fasting than during feeding. Thus, the change in glucose concentration served as an indicator of hepatic conversion of propionate to glucose. Increases in glucose concentration of less than 2 mM at 30 minutes after propionate loading indicated that liver function was altered in nonlactating dairy cows. 相似文献
56.
A total of 120 (80 males and 39 females) newborn Holstein-Frisian calves suffering from acute diarrhoea were studied clinically and biochemically, including the following parameters: pH, pCO2, act. HCO3, BE, RBC, PCV, HV, glucose lactate, urea, creatinine, total bilirubin, total protein, AST, Na, K and Cl. The results were interpreted according to their healthy condition, their age as well as their sex. The study had revealed an extreme metabolic acidosis, haemoconcentration, hypoglycaemia and hypofunction in the kidney and liver. Furthermore, the calves with diarrhoea had showed hyponatraemia, hypochloraemia, and hyperkalaemia. Important correlations between clinical and some blood parameters were found. Metabolic acidosis was more severe in male calves than females. These pathophysiological changes should be put in consideration during the therapy of newborn calves suffering from diarrhoea. 相似文献
57.
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59.
Interactions between the predacious fungus Arthrobotrys oligospora and third-stage larvae of a series of animal-parasitic nematodes 总被引:2,自引:0,他引:2
Interactions between the predacious hyphomycete Arthrobotrys oligospora and third-stage larvae of nine animal-parasitic nematodes were tested in vitro. The trap-inducing capabilities of the ruminant trichostrongylus Cooperia oncophora, C. curticei, Haemonchus contortus and Ostertagia ostertagi and of equine cyathostomes were almost comparable to those of free-living soil nematodes, and significantly higher than those of the porcine Oesophagostomum dentatum and Oe. quadrispinulatum and of the murine Nematospiroides dubius. The trap-forming potential of Dictyocaulus viviparus was poor. All animal-parasitic nematodes were rapidly captured when fungal traps had been pre-induced in high numbers. The possible influence of predacious fungi on animal-parasitic nematode populations under natural conditions in the field is discussed. 相似文献
60.
Procoagulant activity in respiratory tract secretions from horses with chronic pulmonary disease 总被引:1,自引:0,他引:1
G Grünig M Hermann C Winder R Von Fellenberg 《American journal of veterinary research》1988,49(5):705-709
Cell-free supernatants (sol phases), obtained after centrifugation (50,000 x g for 45 minutes) of respiratory tract secretions from horses with chronic pulmonary disease, were assayed for procoagulant activity (PCA) in a one-stage clotting assay. Of the 103 specimens tested, 59% (61) contained PCA. Procoagulant activity was detected most often in respiratory tract secretions of severely affected horses and was correlated with the quantity of neutrophils in the respiratory tract secretions. In 12 of the 17 secretions tested, the clotting time was decreased in a dose-dependent manner. However, in the coagulation assay, some reversal of PCA or inhibition of coagulation was observed in 4 secretion specimens when greater volumes of sol phase were added. Procoagulant activity was characterized tentatively as tissue factor, because it was temperature stable and was inhibited by phospholipase C and by concanavalin A. Clotting was induced in factor VIII-deficient human plasma; however, with the exception of 1 respiratory secretion specimen, clotting was not enhanced in factor VII-deficient human plasma. Procoagulant activity is a useful indicator of airway inflammation. 相似文献