Juergen Rehage

University of Veterinary Medicine Hannover | TiHo · Klinik für Rinder

The present investigation was undertaken to study the effects of surgical stress on thiobarbituric acid reactive substances (TBARS) and ferric reducing ability of plasma (FRAP) in dairy cows. Ten Holstein-Friesian dairy cows, mean age 5.26 years, admitted for treatment of left abomasal displacement (omentopexy), were used in our study. Blood sample...

Diphtheroid necrotic inflammation of the larynx in calves in its advanced stage mostly requires surgical therapy. Diagnostic procedure, surgery and post-operative care were described for three calves (aged 3-8 weeks). The clinical diagnosis was confirmed by laryngoscopy. In all three cases, a laryngotomy with resection of necrotic tissue was perfor...

The objective of this study was to examine the efficacy of a caudal epidural anaesthesia using lidocaine or xylazine in a high volume for analgesia of the flank, navel and hamstring tendon. Fourteen calves weighing 57.7 +/- 5.1 kg and 37.9 +/- 9.3 (mean +/- SEM) days old were randomly divided into two groups of seven calves each. Calves belonging t...

In a herd of 70 bull calves (4-5 months of age) kept on pasture, 56 (80%) animals showed, after natural infection with Moraxella bovis (M. bovis), typical clinical signs of infectious bovine keratoconjunctivitis (IBK). Eyes with epiphora, photophobia, blepharospasm and/or a corneal ulcer with a diameter of less than 5 mm were considered as moderate...

To determine in cattle with septic arthritis of the distal interphalangeal joint (SADIJ) the efficacy of resection of the distal interphalangeal joint (JRES) as a digit salvage technique compared with digital amputation (DAMP). Prospective, randomized clinical study. German Holstein-Friesian dairy cattle with SADIJ of 1 hind limb (n=52). SADIJ diag...

The fatty acyl profile of phospholipids (PL) determines the fluidity of cell membranes and affects cell function. The degree to which long-chain fatty acid (LCFA) composition of PL and triacylglycerols (TG) in liver and total lipids in adipose tissue can be altered by prepartum nutrition in peripartal dairy cows is unclear. Multiparous Holsteins (n...

To report use of ultrasonographic examination of the coxofemoral joint, a surgical technique for repair of craniodorsal coxofemoral dislocation, and outcome. Clinical case reports. Calves (n=4) with coxofemoral luxation. Craniodorsal coxofemoral luxation was diagnosed by physical examination, radiographic, and ultrasonographic findings. Open surgic...

One Galloway bull and three German Holstein-Friesian cows aged between three and five years with complicated arthritis of the fetlock joint were treated by arthrotomy (on the bull and two of the cows) or by arthrodesis (on the other cow). Arthrotomy involved four vertical dorsolateral/dorsomedial and palmolateral/palmomedial incisions 5 cm long to...

Objective: Profoundly diphtheroid necrotic laryngitis in calves usually requires a surgical therapy because of distinct dyspnoea. Diagnosis, surgery and postoperative care in one calf are described. Material and methods: The clinical suspected diagnosis (diphtheroid necrotic laryngitis) was confirmed by laryngoscopy. A laryngotomy with resection of...

Zusammenfassung Gegenstand und Ziel: Hochgradige diphtheroid-nekrotisierende Laryngitiden bedürfen beim Kalb aufgrund ausgeprägter Atemnot fast immer einer chirurgischen Therapie. Diagnostisches Vorgehen, Operation und postoperative Versorgung bei einem Kalb werden beschrieben. Material und Methoden: Die klinische Verdachtsdiagnose (diphtheroid-nek...

The objective was to examine whether the administration of colostrum by a drencher is a safe method to achieve satisfying immunoglobulin concentrations in newborn Holstein Friesian (HF)-calves. Twenty-one calves were fed 1 h postnatum with 2 l colostrum from their dam using a nipple bottle (group I); 15 calves were drenched with 4 l colostrum from...

MudroÀ P., J. Rehage, H. P. Sallmann, M. Höltershinken, H. Scholz: Stress Response in Dairy Cows Related to Blood Glucose. Acta Vet. Brno 2005, 74: 37-42. The aim of this study was to investigate whether different pre-surgical blood glucose concentrations have any effect on the course of cortisol and metabolic responses to surgical stress in dairy...

Objective: The objective of the study was the examination of a female Red German Holstein calf affected by congenital hypotrichosis in order to obtain more details in different phenotypes of hypotrichoic cattle. Furthermore, a possible defect of the ectodysplasin 1 (EDA) gene could be excluded. Material and methods: Clinical, laboratory, genealogic...

Zusammenfassung Gegenstand und Ziel: Gegenstand der Studie war die Untersuchung eines weiblichen Kalbes (Deutsche Holstein, Farbrichtung Rotbunt) mit angeborener Haarlosigkeit als Beitrag zur weiteren Aufklärung verschiedener Phänotypen der Hypotrichose beim Rind. Zusätzlich wurde geprüft, ob bei diesem Kalb ein Defekt des Ectodysplasin-1-(EDA-)Gen...

The use of rumenocentesis as a tool in veterinary practice is to be evaluated; this publication describes the technique and reports results of a field study. From 164 dairy cows samples of ruminal fluid have been collected by means of rumenocentesis. In order to compare reaction of the individuals towards rumenocentesis, reaction has been scored on...

We report here on a 3 1/2-year-old mother cow with a malignant perineural tumour near the pontine angle of the cerebellum, but which first drew attention because of clinical signs of BSE. Neurological symptoms that manifested during the course of the disease included disturbances in behaviour, movement and aesthesia, as described by BRAUN et al. (2...

We report here on a 3 1/2-year-old mother cow with a malignant perineural tumour near the pontine angle of the cerebellum, but which first drew attention because of clinical signs of BSE. Neurological symptoms that manifested during the course of the disease included disturbances in behaviour, movement and aesthesia, as described by BRAUN et al.(20...

In the present study we aimed to compare the arterial and venous plasma ammonia in dairy cows with fatty liver and hepatic failure. 75 Holstein-Friesian dairy cows were used in the investigation. Clinical examinations revealed liver failure in 14 cows (group LF). Diagnosis of hepatic failure was based on the clinical signs of hepatic encephalopathy...

Inflammatory adhesions between reticulum and ventral abdomen in patients suffering traumatic reticuloperitonitis (TRP) may induce a massive inhibition of reticular contractions and thereby an impairment of the separation process of particles in the reticulorumen. However, a substantial disturbance of digesta passage (Hoflund-syndrome) is found only...

Subacute ruminal acidosis (SARA) is likely to arise when an easily palatable, high-energy diet meets a ruminal environment not adapted to this type of substrate. Increase of short-chained fatty acids (SCFA) will occur. Eventually, this may result in a transient nadir of ruminal pH below 5.5. Two situations are likely to represent the risk of SARA....

Dairy cows with left abomasal displacement (LDA) are in substantial negative energy balance and mobilize considerable amounts of non-esterified fatty acids. Thus, fatty liver is a common hepatic disorder in LDA cows. Results of a previous study showed that approximately 4-5% of LDA cows referred to our clinic for surgical correction of abomasal dis...

A relatively thick (diameter approximately 2 mm), ropelike (length ca. 20 mm) and elastic "Vinculum tendinis" connects--within the fetlock tendon sheath--the dorsal side of the deep digital flexor tendon with the dorsal part of the Manica flexoria (the communicating band of the Musculus interosseous medius to the superficial digital flexor tendon)....

As transmissible spongiform encephalopathies are ranked as zooanthroponoses the commission of the european community formulated decree 98/272/EG about epidemiological survey of transmissible encephalopathies. By the "Decree about the surveilance of transmissible encephalopathies and changes to the decree about notifiable animal diseases" this Europ...

Sixteen dairy cows were studied to assess the status of the natural antioxidant vitamin E and lipid peroxidation in their livers. Cows with liver failure (n = 7) showed clinical signs of a hepatic encephalopathy and had the following values of selected blood indices: AST > 80 U/l and GLDH > 15 U/l in serum, and venous plasma ammonia > 35 mmol/l. Th...

In forty-five Holstein Frisian dairy cows (1-6 weeks post partum; mean age: 5.1 +/- 1.2 years) the serum total bile acid concentrations (SBA) were measured enzymatically. In all cows a left sided abomasal displacement was corrected surgically by right side laparotomy and omentopexy three days before investigation. The liver fat content was determin...

Dairy cows with liver failure were studied to gain information about plasma concentrations of α-tocopherol; forty-five Holstein-Friesian dairy cows with left displacement of abomasum were used in the present study. After surgery the cows were divided into two groups: A - cows with liver failure (n = 15) and B - cows without liver failure (controls;...

The aim of this study was to assess the value of ultrasonography as an imaging technique for the assessment of respiratory diseases in calves. Postmortem findings were used as a 'gold standard'. Eighteen calves aged up to five months which suffered from pneumonia or bronchopneumonia were used. Ultrasonographic and postmortem findings were recorded...

Concentrations in ionized calcium and some other blood parameters including total calcium, magnesium, inorganic phosphate, sodium, potassium, chloride, acid-base and hematological parameters of 15 German Holstein dairy cows were studied before and after surgical replacement of a left sided displaced abomasum. Mild hemoconcentration and hypochloremi...

Application of a HPLC-technique according to MURACA & BLANCKAERT (1983) for accurate determination of the relative amounts of unconjugated bilirubin and its sugar mono- and diconjugates in bovine plasma is described and the results are compared with those of the conventional diazo-method. The diazo-assay yielded values for total and unconjugated bi...

The influence of dried yeast on the in-vitro-fermentation of chronic acidotic bovine rumen fluid was investigated using the longterm rumen simulation technique (RUSITEC). Five investigation periods keeping 21 days each were carried out. After a control period of eight days a five days lasting test phase followed. During this time 2 g of dried yeast...

Thirty dairy cows with left abomasal displacement (LAD) and 14 healthy control cows were studied to assess the status of the natural antioxidant vitamin E, lipid peroxidation in the liver (malondialdehyde-formation) and its relationship to hepatic lipidosis. Blood concentrations of alpha-tocopherol, aminotransferase, glutamin dehydrogenase, free fa...

Thirty dairy cows with left abomasal displacement (LAD) and 14 healthy control cows were studied to assess the status of the natural antioxidant vitamin E, lipid peroxidation in the liver (malondialdehyde-formation) and its relationship to hepatic lipidosis. Blood concentrations of α-tocopherol, aminotransferase, glutamin dehydrogenase, free fatty...

Blood parameters, feed intake and milk yield were determined in 53 cows with a left displacement of the abomasum (LDA) on the day of surgery (ds; laparotomy and omentopexy) and during the following four days (d1-d4). Using histological methods severe (group SF), moderate (group MF) or no/mild (group NF) fatty liver was found in 32%, 40% and 28% of...

Objective To evaluate the functional importance of impaired reticular contractions attributable to inflammatory adhesions in the pathogenesis of vagus indigestion in cows with traumatic reticuloperitonitis ( trp ). Design Case control study. Animals 42 dairy cows with trp were compared with 10 healthy control cows. Cows with trp were assigned to...

The objective of the study was (a) to compare sonographically the sequence of reticular contractions between grass and roughage eaters (cows, sheep) and intermediate feeders (goats) and (b) to check whether sonography may be useful for the investigation of cattle with a history of traumatic reticulo-peritonitis (TRP). All animals were investigated...

The objective of this study was to investigate whether the surgical replacement of left abomasal displacement (omentopexy) leads to typical stress changes in the energetic metabolism of dairy cows: twenty dairy cows, aged approximately 4.4 years were used. Six blood samples were collected in order to determine concentrations of cortisol, glucose, f...

Transferrin (Tf) concentrations were determined in cattle in various physiological states, in energy-deficient (ketotic) cows, in situations of several acute and chronic infections, after endotoxin administration and in animals with bovine leucocyte adhesion deficiency (BLAD). Tf concentrations varied between 1.5 and 8.5 g/l and in healthy animals...

The effect of epidural administered xylazine was investigated in 10 mature Holstein cows (mean age: 5.4 +/- 1.2 years, mean BW: 572 +/- 23 kg): 5 cows were treated with xylazine in a low dose of 0.05 mg/kg body weight, 3 cows in a medium dose (0.07 mg/kg BW) and 2 cows in a high dose (0.1 mg/kg BW). Xylazine dosages were diluted in sterile saline t...

In 20 dairy cows the effect of a single vitamin E injection on cortisol and white blood cell response to surgical stress was investigated. Abdominal surgery (omentopexy) was carried out in order to correct a left abomasal displacement. Ten hours prior to surgery 10 cows were injected intramuscularly with 10 mg DL-alpha-tocopheryl acetate per kg bod...

The objective of this study was to investigate whether a failure in the ability to retain selectively particles in the reticule-rumen plays a role in the pathogenesis of HOFLUND's syndrome.

The effect of Baquiloprim/Sulfadimidine on the fermentation of rumen fluid was tested by three different models (short-time-system: 1. in vitro [n=25]; 2. in-vivo/in-vitro [n=lO]; 3. long-time-system: in-vitro [n=2]). all systems showed increased pH (1. model: 5 %; 2. model: 6 %; 3. model: 1 %), decreased glucose degradation (model 1 u. 2: -21 %),...

Since HOFLUND's explanation (1) of a functional stenosis of either the bovine forestomach or the pylorus due to damages of the vagal nerve in 1940, this hypothesis is discussed controversially. In addition disturbances of the beforementioned extrinsic nerve system, mechanical influences are discussed to be the origin of this disease (2,3). As an ex...

Investigations were carried out in 60 high yielding cattle to improve diagnostic tools in liver disturbances. 10 healthy cows were used to establish reference values, while another group consisted of cows (GML, n= 31) suffering from dislocatio abomasi sinistra with liver affections (elevated AST, GLDH, and bilirubine values) but clinical inapparent...

Fatty infiltration of the liver, occurring within 1 to 5 weeks postpartum, and due to excessive lipomobilisation, is the most common liver disease in dairy cows. Case studies showed that 91% of cases with left-sided displacement of the abomasum (LDA), accompanied by suppression of appetite and enhanced lipomobilisation, occurred during this period2...

A report is given on a calf with tetralogy of Fallot. This is the most common cyanotic congenital heart lesion in calves. Diagnosis was made by two-dimensional echocardiography and heart catheterisation. Tetralogy of Fallot was confirmed by necropsy.