Etiology of bovine leukosis. 9. Test of the leukemogenic effect of urethane     

W Wittmann  D Urbaneck 《Archiv fuer experimentelle veterinaermedizin》1970,24(2):641-651

  相似文献   

Experiments on vaccination of swine with monovalent ethylethylenimine (EEI)-diethylaminoethyl-dextran (DEAE-D) vaccines against foot-and-mouth disease of the virus type A and C     

G Wittmann  K Bauer  M Mussgay 《Zentralblatt für Veterin?rmedizin. Reihe B. Journal of veterinary medicine. Series B》1970,17(10):1058-1063

  相似文献   

Diagnosis and control of bovine enzootic leucosis. 1. Development of the total lymphocyte count in clinically healthy cattle, hematologically negative for leucosis, from affected herds     

H Seils  W Wittmann 《Archiv fuer experimentelle veterinaermedizin》1969,23(4):765-773

  相似文献   

Experience obtained from the use of formol-adsorbat vaccines against Salmonella cholerae-suis in pig stocks     

D Schmidt  E Wittmann 《Monatshefte für Veterin?rmedizin》1968,23(3):86-89

  相似文献   

Thermostabiler Inhibitor im Schweineserum gegenüber dem MKS-Virus     

K. Bgel  G. Wittmann  G. Eissner 《Zoonoses and public health》1967,14(6):520-536

  相似文献   

Vaccination of boars against Aujeszky's disease. 2. Virus excretion in nasal secretions and ejaculates     

V Ohlinger  G Wittmann 《DTW. Deutsche tier?rztliche Wochenschrift》1984,91(3):100-102

  相似文献   

Characterisation of transthyretin and retinol-binding protein in plasma and cerebrospinal fluid of dogs     

Forterre S  Raila J  Forterre F  Brunnberg L  Schweigert FJ 《Veterinary journal (London, England : 1997)》2006,171(3):451-455

The aim of this study was to investigate differences in concentrations of vitamin A, transthyretin (TTR) and retinol-binding protein (RBP) between plasma and cerebrospinal fluid (CSF) in dogs. RBP was detected using ELISA, and both RBP and TTR by Western blot analysis after separation on SDS-PAGE. Vitamin A was determined by high performance liquid chromatography. RBP and TTR as well as vitamin A were detected in all samples but at substantially lower concentrations in CSF compared to plasma. RBP in dog plasma showed a similar molecular mass to that of humans, whereas canine TTR had a lower molecular mass. Comparison between plasma and CSF showed that both RBP and TTR were of lower molecular mass in CSF. In CSF, RBP and retinol were present at 10-100-fold lower concentrations compared to plasma. Retinyl esters were present only in minute amounts in 5/17 samples. In conclusion, the CSF of dogs compared to humans is significantly different in terms of both quality and quantity of transport proteins for vitamin A.  相似文献   

Metabolic and hormonal responses to subcutaneous glucagon in healthy beagles     

Florian K. Zeugswetter Dr med vet  Elisa Schornsteiner Mag med vet  Georg Haimel Mag med vet  Ilse Schwendenwein Dr med vet  DECVCP 《Journal of Veterinary Emergency and Critical Care》2012,22(5):558-563

  相似文献   

The prevalence and clinical relevance of hyperkalaemia in calves with neonatal diarrhoea     

Florian M. Trefz  Annette Lorch  Melanie Feist  Carola Sauter-Louis  Ingrid Lorenz 《Veterinary journal (London, England : 1997)》2013,195(3):350-356

One hundred and twenty-four calves with neonatal diarrhoea were investigated in order to assess the prevalence of hyperkalaemia and the associated clinical signs. Hyperkalaemia (potassium concentration >5.8 mmol/L) was recognized in 42 (34%) calves and was more closely associated with dehydration than with decreases in base excess or venous blood pH. In 75 calves with normal blood concentrations of D-lactate (i.e. ?3.96 mmol/L), K concentrations were moderately correlated with base excess values (r = ?0.48, P < 0.001). In contrast, no significant correlation was observed in 49 calves with elevated D-lactate. Only three hyperkalaemic calves had bradycardia and a weak positive correlation was found between heart rate and K concentrations (r = 0.22, P = 0.014). Ten of the 124 calves had cardiac arrhythmia and of these seven had hyperkalaemia indicating that cardiac arrhythmia had a low sensitivity (17%) but a high specificity (96%) as a predictor of hyperkalaemia.In a subset of 34 calves with base excess values ??5 mmol/L and D-lactate concentrations <5 mmol/L (of which 22 had hyperkalaemia), changes in posture/ability to stand could be mainly explained by elevations of K concentrations (P < 0.001) and to a lesser extent by increases in L-lactate concentrations (P = 0.024). Skeletal muscle weakness due to hyperkalaemia alongside hypovolaemia may produce a clinical picture that is similar to that in calves with marked D-lactic acidosis. However, since reductions in the strength of the palpebral reflex are closely correlated with D-lactate concentrations, a prompt palpebral reflex can assist the clinical prediction of hyperkalaemia in calves presenting with a distinct impairment in their ability to stand (specificity 99%, sensitivity 29%).  相似文献   

Nitrogen rhizodeposition in agricultural crops: Methods,estimates and future prospects     

Florian Wichern  Elmar Eberhardt  Jochen Mayer  Rainer Georg Joergensen  Torsten Müller 《Soil biology & biochemistry》2008,40(1):30-48

The objective of the present review was to present the current knowledge on nitrogen (N) rhizodeposition, including techniques for ¹⁵N labelling of agricultural plants, amounts of N rhizodeposition and its fate in soil. Rhizodeposition is the process of release of organic and inorganic compounds from living plant roots. It is often quantified in terms of carbon (C) and less often as N derived from rhizodeposition (NdfR). Rhizodeposition of N can be estimated by labelling plants with ¹⁵N and following its fate in soil. Most methods used for labelling plants with ¹⁵N can only be applied after appearance of the first leaf and only allow pulse or multiple pulse labelling. Only the split-root technique and the application of gaseous ¹⁵N allow continuous labelling. All methods available at present have their flaccidities mostly due to the fact that the application of N is not following its physiological pathway of assimilation or by using artificial conditions. In the studies reviewed, amounts of N rhizodeposits ranged from 4% to 71% of total assimilated plant N. In legumes the median was 16% and in cereals it was 14%. Rhizodeposits were 15–96% of the below-ground plant biomass (BGP). In legumes the median was 73% and in cereal it was 57%. The high variability of these results shows the need for more investigations on N rhizodeposition looking especially on the factors influencing the amounts released in different plant species under field conditions.  相似文献