The objective of this clinical control trial was to examine the effectiveness of the classical homeopathic treatment strategy in cases of mild and moderate bovine clinical mastitis in comparison with antibiotic and placebo treatments. Owing to characteristics of the selected herds, only cases of clinical mastitis caused by environmental pathogens and clinical cases with negative bacteriological result in the pre-treatment milk sample were included in the trial. A total of 136 lactating dairy cows with 147 affected quarters from four herds in Germany were randomly allocated to three treatment groups. The cows were examined on days 0, 1, 2 and on days 7, 14, 28 and 56 post initial infection to assess clinical signs. Simultaneously, with the exception of days 1 and 2, quarter milk samples for laboratory examinations (bacteriology, somatic cell count) were collected to assess bacteriological and cytological cure rates. On days 28 and 56, treatment strategies did not differ significantly with respect to the clinical outcomes and the total cure rate in cases of bacteriological negative mastitis (n=56). In cases of pathogen-positive mastitis (n=91), the cure rate after 4 and 8 weeks was similar between the two treatment strategies, homeopathy and antibiotic treatment, but the difference between the homeopathic and the placebo treatment at day 56 was significant (P<0·05). The results indicate a therapeutic effect of homeopathic treatment in cases of mild and moderate clinical mastitis. However, independent of treatment strategy and bacteriological status, the total cure rate was on a low level, revealing limitations in the effectiveness of both antibiotic and homeopathic treatment strategies.
In the present work, macrorestriction analysis was applied to characterize 44 S. uberis field strains isolated from lactating cows suffering from mastitis in three dairy herds in Hesse State, Germany. Analysis of the obtained data by Pulse-Field Gel Electrophoresis (PFGE) showed that most of the isolates originating from different herds and cows were not related to each other. However, identical macrorestriction patterns were noted in 12 of 13 mastitic quarters in healing process, in three quarters even over the whole sampling period indicating persistent infection. In the present work, PFGE could detect variable levels of similarity ranging from 76 to 100%. The macrorestriction analyses revealed the presence of 10 S. uberis PFGE pattern with more than four bands difference. PFGE profiles with minor differences (only one to three bands) were considered to be subtypes. The use of sensitive genotyping methods like macrorestriction analyses by PFGE enables the differentiation among new and persistent infections. Nevertheless minor changes in macrorestriction profiles could occur which are clearly distinguishable from totally unrelated strains.
In piglet production, Escherichia coli (E. coli) and the presence of lipopolysaccharides (LPS) were considered as predominant causative agents in the aetiology of important diseases of sows and piglets. The aim of the study was to assess the effects of feeding different roughage sources to sows in gestation on the microbiota and endotoxin concentration in colostrum and on the specific immune response of their piglets. In two trial runs, a total of 144 sows were assigned to one of the six dietary treatments: the Control group receiving a concentrate diet and five groups with a restrictive supply of the control diet in combination with straw (S), hay (H), clover grass silage (GS), maize silage (MS) or Jerusalem artichoke (JA). During lactation no roughage was offered. Colostrum samples were analysed for bacteriological and immunological parameters. Blood samples were taken from two piglets per corresponding litter to examine the concentration of C-reactive protein (CRP) and of specific antibodies to LPS of E. coli (strain J5). Roughage feeding had an effect neither on the total bacterial count nor on the content of E. coli in colostrum of sows. The concentration of LPS in colostrum was reduced in Group MS. The concentration of CRP in the colostrum samples was low and independent of the feeding regime (max. 9.3 µg/ml). However, the administration of roughage components rich in crude fibre (Groups H and S) decreased the level of CRP in colostrum significantly. The analysis of the specific immunoglobulin to LPS of E. coli (strain J5) showed a higher concentration of IgG-anti-LPS in blood serum of piglets from sows of Group JA. The results suggest that the inclusion of selected roughage components may have the potential to affect the immunocompetence of sows and their corresponding piglets.
Zusammenfassung Vor dem Hintergrund den Einsatz von Antibiotika in der Nutztierhaltung zu reduzieren, gewinnt die Anwendung von Hom?opathika als Alternative bei der Behandlung von bovinen Euterentz?ndungen an Bedeutung. Der vorliegende ?bersichtsartikel stellt Argumente f?r und wider den Einsatz von Hom?opathika dar. Weiterhin werden Studien zur hom?opathischen Mastitistherapie vorgestellt, die Schlussfolgerungen in Bezug auf die Voraussetzungen erlauben, die vor der Anwendung von Hom?opathika zu erf?llen sind. Auf deren Basis wurde ein Entscheidungsbaum zur sachgerechten Vorgehensweise bei der Behandlung von klinischen Mastitiden unter Anwendung der klassischen Hom?opathie erarbeitet, der eine konsequente Diagnostik in den Vordergrund stellt.
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