The relation between parameters of the immune system, secretion disorders and milk production in cattle     

F Meyer  G Erhardt  B Senft 《DTW. Deutsche tier?rztliche Wochenschrift》1988,95(4):159-162

  相似文献   

The first isolation of Leptospira serovar hardjo in West Germany     

S Brem  H Kopp  P Meyer  P Hollmann 《Berliner und Münchener tier?rztliche Wochenschrift》1988,101(12):419-421

  相似文献   

Metabolism of benomyl in carrot,strawberry and apple     

Jean P. Rouchaud  Georges J. Lhoest  Michel J. Mercier  Joseph A. Meyer 《Pest management science》1977,8(1):23-30

The metabolism of benomyl was studied in carrots treated with high rates of benomyl, and in strawberries and apples treated at normal rates. The same metabolites were observed in both cases though, at normal rates, their concentrations were low but significant. Detected by means of gas-liquid chromatography they were: carbendazim, 2-aminobenzimidazole (2-AB), benzimidazole, 2-aminobenzonitrile, o-phenylene-diamine and the conjugates of carbendazim and 2-AB. o-Phenylenediamine has not hitherto been reported as a metabolite of benomyl. Two unidentified compounds were also observed by gas-liquid chromatography; their mass spectra were obtained by means of combined gas-liquid chromatography and mass spectrometry.  相似文献   

Use of bone meal in feed rations for dogs     

H Meyer  H C Mundt 《DTW. Deutsche tier?rztliche Wochenschrift》1983,90(3):81-86

  相似文献   

cDNA cloning of foot-and-mouth disease virus     

L Meyer  H W Heinrich  S Weber 《Archiv fuer experimentelle veterinaermedizin》1987,41(5):665-670

  相似文献   

The etiology of swine dysentery. I. Oral inoculation of germ-free swine with Treponema hyodysenteriae and Vibrio coli   总被引：7，自引：0，他引：7  

R C Meyer  J Simon  C S Byerly 《Veterinary pathology》1974,11(6):515-526

  相似文献   

Estrus, ovulation rate and body composition of selected strains of mice on ad libitum and restricted feed intake   总被引：1，自引：0，他引：1  

H H Meyer  G E Bradford 《Journal of animal science》1974,38(2):271-278

  相似文献   

Effect of feeding vitamin A supplement to pregnant cows on the health of calves     

G Steinbach  M Eidner  H Meyer 《Monatshefte für Veterin?rmedizin》1970,25(5):191-195

  相似文献   

Microscopic studies of the skin of the Turkish Angora goat. I. Skin layers     

A Tanyola?  W Meyer  M Sa?lam  A Ozer  Z Ozan  S Müftüo?lu  R Schwarz 《DTW. Deutsche tier?rztliche Wochenschrift》1989,96(10):498-503

The study describes basic structural aspects of the integumental layers (epidermis, dermis, hypodermis) of the Turkish Angora goat. The results have been obtained by light- and electronmicroscopical methods. Central topics are measurements of layer thickness as related to annual season and life period, as well as typical criteria of integumental layer construction as connected with the hair cycle. Remarkable is a trimerous organization of the dermis and cyclic changes in the thickness of the stratum adiposum of the hypodermis. The findings are discussed with regard to comparable observations from other domestic mammals.  相似文献   

Serum liver enzyme and histopathologic changes in calves with chronic and chronic-delayed Senecio jacobaea toxicosis.     

A M Craig  E G Pearson  C Meyer  J A Schmitz 《American journal of veterinary research》1991,52(12):1969-1978

Progressive changes in serum enzyme activity and liver histologic features were monitored in calves fed tansy ragwort (Senecio jacobaea)-contaminated pellets. The experiments were designed to simulate natural intoxicant ingestion conditions in relationship to the dose and duration of exposure to the toxic plant to correlate early laboratory diagnostic changes with the natural progression of the disease, thereby facilitating early diagnosis and intervention by veterinary clinicians. Eight calves were fed tansy ragwort and 4 additional calves served as controls. In group 1, 4 calves were continuously fed dried tansy ragwort mixed in a pelleted feed at a 5% concentration by dry weight until terminal liver disease developed. Serum liver enzyme (alkaline phosphatase, glutamate dehydrogenase, and gamma-glutamyltransferase) activities were monitored at weekly intervals in these calves and in the 2 controls. In group 2, 4 calves were fed the same contaminated feed for only 60 days, with return to normal feed for the duration of the trial. Two additional calves served as controls. Their liver enzyme activities were monitored every other week in conjunction with percutaneous liver biopsies. All 8 calves fed tansy ragwort-contaminated pellets developed terminal hepatopathy in either a chronic pattern (n = 6) or a chronic-delayed pattern (n = 2), with the onset of a moribund state or sudden death at 11 to 17 weeks and 27 to 51 weeks, respectively. The calves were euthanatized when classic terminal signs of hepatic encephalopathy first became evident. The clinicopathologic patterns of chronic and chronic-delayed toxicoses were typical of over 5,000 cases of field tansy toxicosis diagnosed at the diagnostic laboratory. Serum glutamate dehydrogenase was the first enzyme to increase in most animals, with a short-term increase to peak values followed by a rapid return to normal. This enzyme change was followed by increases in alkaline phosphatase and gamma-glutamyltransferase. Serum enzyme changes preceded development of recognizable histologic lesions. Vacuolar changes in hepatocyte nuclei, biliary hyperplasia, and fibrosis sequentially developed in liver biopsy specimens from each animal, whereas megalocytosis was not a predominant feature until necropsy. On the basis of our findings, we suggest that the optimal tests for diagnosis of pyrrolizidine alkaloid intoxication should consist of liver biopsy and determination of concurrent serum liver-enzyme activities.  相似文献