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Biomedical subjects

K Doll

Publications and source records attributed to K Doll.

25 records · Page 2Linked to original sources

[A balloon probe for the treatment of recurrent bloat in calves and young cattle].

For the treatment of recurrent bloat a soft-rubber balloon tube which is inserted through the nose into the rumen and can stay there for several days was developed. The inflated balloon ensures a floating of the tip of the tube in the dorsal gas cap above the rumen contents. The tube can also be used as a prophylactic measure to avoid excessive ruminal gas accumulation in recumbent patients during surgery. This report describes the experiences with this balloon tube gathered in 23 clinical patients.

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[Liver cirrhosis in young calves].

Among the cattle admitted to the II. Medizinische Tierklinik of the University of Munich during the years 1982-86, 38 calves of up to 6 weeks of age had a dystrophy (n=5), pre-cirrhosis (n=21) or cirrhosis (n=12) of the liver. Similar hepatic lesions were found in three 1- to 7-day-old calves and in 1 foetus aborted in the 7th month of gestation which were submitted for necropsy. Of the 38 patients (74% male, 87% German Fleckvieh) 25 had been ill since the first seven days of life (mean age on admittance: x=14 days). These hepatopathies showed no significant preponderance in regard to breed, sex or season. The general condition of the calves was moderately to severely disturbed. Catarrhal enteritis resistant to treatment was the main clinical finding in 32 of the 38 patients. Nine calves developed central nervous symptoms (delayed reflexes, impaired coordination, convulsions, opisthotonus). Neurohistological examination of one of these calves revealed massive astrocytic oedema, shrinkage of individual nerve cells and formation of the so-called hepatic glia (hepatoencephalopathy). Even in the last days before death icterus of the sclera was noted in only 11 of the 38 patients; of these, nine also displayed icterus of the mucous membranes. The calves died between the third day to seventh week of life; mean age at death 18 days. Haematological examination: in 12 cases mild to marked anaemia (but without signs of haemolysis), marked granulocytosis with a shift to the left in 20 cases, sometimes additionally neutrocytes with nuclei resembling Pelger's nuclear anomaly (pseudo-Pelger), granulocytes with basophilic stippling as well as lymphoidocytes. The blood glucose levels were usually markedly reduced. 15 calves had a pronounced refractory hypoglycaemia with blood glucose levels under 1,66 mmol/l. Neither albumin concentration nor the specific serum globulin fractions showed significant differences when compared to an age matched control group.(ABSTRACT TRUNCATED AT 250 WORDS)

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[Small intestine obturation and perforation in a calf caused by a foreign body. Case report].

Obturation and perforation of the jejunum by an ingested fir branch was diagnosed in a 3 months old male German Fleckvieh calf. Following resection of the altered segment of intestine an end-to-end anastomosis was performed. The abdominal cavity was flushed with a 0.4% solution of polyvidon-iodine in normal saline, and an antibiotic preparation was instilled. Systemic antibiotic therapy was maintained for 6 days. Recovery was uneventful, and the animal was discharged 9 days after admission.

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[Used motor oil poisoning in cattle. Report of a clinical case].

The clinical signs observed in a cow after oral ingestion of used motor oil (tractor crankcase oil) are described. The treatment consisted of rumentomy with removal of all the ingesta, establishing a temporary rumen fistula, and administration of rumen fluid and sodium sulphate. Isotonic saline, dextrose, sorbitol and amino acid solutions were administered parenterally for stabilisation of the circulatory and metabolic system. The factors coming into question for the toxic effect of used motor oil are discussed.

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[Occurrence and economic importance of congenital hernia in German Fleckvich calves].

The frequency of congenital hernia was investigated in German Fleckvieh calves being driven up for sale on livestock markets for breeding and fattening calves in Miesbach and Traunstein. Data were collected on 77 livestock auctions in the years 1996 and 1997. Altogether 53,105 calves were examined and 1.8% of these calves showed a congenital umbilical hernia. The incidence of umbilical hernia was significantly influenced by the sex of the calf, the occurrence of multiple births, the market place/market date, the sire and the sire line. Red Holstein blood proportion, lactation number, duration of pregnancy and 305 day milk performance were not of significant importance. Herd milk level did not influence the incidence of congenital umbilical hernia, however, herdmate averages for calves differed significantly in their incidence. The average difference of the market price between male calves affected by congenital umbilical hernia and not affected male calves amounted to 75 DM, in female calves, however, only to 38 DM. The risk, that a congenital umbilical hernia is not closing within an age of 15 months, depends on the width of the hernial opening in the newborn calf. An opening of 4 cm and more has only a healing chance of 50% and less. However, negative effects on fattening and carcass traits could be not found. The genetic influence on congenital umbilical hernia was obvious. The analyses indicated that the incidence of congenital umbilical hernia observed could not be explained by one autosomal recessive gene locus, but it seemed much more likely that more than one gene locus is involved or a mixed multifactorial monogenic mode of inheritance may be the underlying genetic mechanism. Breeders should be aware of the implications of congenital hernias and thus, congenital hernia should get more attention in the selection process of young sires.

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