Influence of passage model, sampling site, and marker dosing time on passage of rare earth-labeled grain through Holstein cows     

M H Poore  J A Moore  T P Eck  R S Swingle 《Journal of animal science》1991,69(6):2646-2654

Three duodenally cannulated, lactating Holstein cows were dosed with rare earth-labeled grain to evaluate effects of passage model, sampling site, and marker dosing time on digesta passage parameters. Cows were given ad libitum access to feed twice daily. Rare earth-labeled grain (applied by the 24-h immersion technique) was fed immediately before (Dy) or 2 h after (Yb) the morning feeding, and duodenal digesta and feces were sampled. Marker excretion curves were fit to a two-compartment, biexponential model, using curve peeling or to a series of two-compartment models, with one to six orders of gamma time-dependency in the fast compartment, using nonlinear regression. Passage estimates from the curve-peeled, biexponential model were similar to those from the best fit of the nonlinear models, which had three orders of gamma time-dependency. Ruminal passage rate of grain, averaged across models, sampling site, and dosing time, was .077/h. Estimates of time to first appearance of marker at the sampling site and mean retention times were longer (8 vs 1 h and 25 vs 17 h, respectively), but passage rates were similar, when determined from fecal compared with duodenal samples (P less than .05). Marker dosing time did not influence any of the parameters. It is concluded that both curve-peeling (linear regression) and nonlinear regression methods can be equally useful for evaluating passage kinetics of grain in dairy cows and that sampling site and time of marker dosing have little effect on passage parameter estimates.  相似文献   

Efficacy of mitoxantrone against various neoplasms in dogs   总被引：2，自引：0，他引：2  

G K Ogilvie  J E Obradovich  R E Elmslie  D M Vail  A S Moore  R C Straw  K Dickinson  M F Cooper  S J Withrow 《Journal of the American Veterinary Medical Association》1991,198(9):1618-1621

One hundred twenty-six dogs with histologically confirmed, measurable malignant tumors were evaluated in a prospective study to determine the response to the antineoplastic drug mitoxantrone. Ninety-five dogs had been refractory to one or more treatment modalities (surgery, n = 57; chemotherapy other than mitoxantrone, n = 37; radiation, n = 4; whole body hyperthermia, n = 1). The extent of neoplastic disease was determined immediately before each dose of mitoxantrone was administered (1 to 10 doses, 2.5 to 5 mg/m2 of body surface area, IV) 21 days apart. Each dog was treated with mitoxantrone until the dog developed progressive disease or until the dog's quality of life diminished to an unacceptable level as determined by the owner or attending veterinarian. A partial or complete remission (greater than 50% volume reduction) was obtained in 23% (29/126) of all dogs treated. Tumors in which there was a partial or complete remission included lymphoma (11/32), squamous cell carcinoma (4/9), fibrosarcoma (2/9), thyroid carcinoma (1/10), transitional cell carcinoma (1/6), mammary adenocarcinoma (1/6), hepatocellular carcinoma (1/4), renal adenocarcinoma (1/1), rectal carcinoma (1/1), chondrosarcoma (1/2), oral malignant melanoma (1/12), cutaneous malignant melanoma (1/1), myxosarcoma (1/1), mesothelioma (1/1), and hemangiopericytoma (1/1). Our results indicated that mitoxantrone induces measurable regression in various malignant tumors in dogs.  相似文献   

Demographic data and treatment of small companion animals with lead poisoning: 347 cases (1977-1986)     

R V Morgan  L K Pearce  F M Moore  T Rossi 《Journal of the American Veterinary Medical Association》1991,199(1):98-102

Three hundred forty-seven cases of lead poisoning in small animals, diagnosed after 1976, were reviewed. The types of treatments used and their outcomes were analyzed. Changes in blood lead concentrations following various treatments, as well as the sources of lead exposure, were also reviewed. The geographic origins of the cases were traced, and demographic factors were studied to determine possible correlates that might explain the regional distribution of cases.  相似文献   

Comparison of culture, peroxidase-antiperoxidase reaction, and serum latex agglutination methods for diagnosis of chlamydiosis in pet birds   总被引：1，自引：0，他引：1  

F M Moore  M C McMillan  M L Petrak 《Journal of the American Veterinary Medical Association》1991,199(1):71-73

Comparison was made among results of cloacal specimen culture, and cloacal swab specimen (cytologic) peroxidase-antiperoxidase (PAP), serum latex agglutination (LA), and tissue PAP assays for diagnosis of chlamydiosis in 144 birds. Swab specimen PAP findings correlated poorly with LA results and failed to predict the LA test result in any bird. Only 1 cloacal swab specimen was regarded as PAP-positive and was from the cloaca of a bird from which chlamydiae were isolated in culture. The sensitivity of swab specimen PAP, compared with culture results, was 33%, whereas specificity was 94%. In this study, swab specimen PAP was a less sensitive test, compared with culture, than was reported in a previous study. The sensitivity of LA in identifying birds that were cloacal culture-positive was poor; true-positive results were not detected, compared with culture results. The specificity of the LA method was 93%, compared with culture results. Results of the tissue PAP method correlated with culture results in the 3 birds for which both tests were performed.  相似文献   

IMAGING DIAGNOSIS—AVULSION OF THE MEDIAL COLLATERAL LIGAMENT OF THE TARSUS IN A HORSE     

Patricia L.  Rose  DVM  MS  Ian  Moore DVM 《Veterinary radiology & ultrasound》2003,44(6):657-659

  相似文献   

Sectional notes     

H. C. Moore  W. G. Been 《American Journal of Potato Research》1933,10(6):124-127

  相似文献   

Intravenous administration of 9-aminocamptothecin to dogs with lymphoma     

A. S. Moore §  A. R. Imondi  P. L. de Souza  C. A. Wood † 《Veterinary and comparative oncology》2003,1(2):86-93

A colloidal dispersion formulation of 9‐aminocamptothecin (9‐AC) was administered intravenously to 10 dogs with previously untreated, spontaneously occurring, multicentric lymphoma. The dogs received a 72‐h infusion of 9‐AC at a rate of 46.5–51.25 µg m^?2 h^?1 (total dose range 3.35–3.69 mg m^?2). This dose range was associated with myelosuppression, consisting principally of neutropenia with a nadir at 7 days following the start of infusion. Neutropenia and thrombocytopenia were the most common toxicoses and are most likely to be dose‐limiting toxicities; low‐grade gastrointestinal signs were rarely seen. Concentrations of 9‐AC lactone, as well as clinical toxicities, compare favourably with those found in humans. Tumour responses were seen in all treated dogs. Response to other chemotherapy, following cessation of 9‐AC treatment, was not obviously compromised even in dogs clinically resistant to 9‐AC. 9‐AC is a novel treatment drug for canine lymphoma, which appears to show great promise.  相似文献   

Comparison of the Value of Pulsed-field Gel Electrophoresis,Random Amplified Polymorphic DNA and Amplified rDNA Restriction Analysis for Subtyping Taylorella equigenitalis     

Kagawa  S.  Moore  J.E.  Murayama  O.  Matsuda  M. 《Veterinary research communications》2001,25(4):261-269

Eight strains of Taylorella equigenitalis were identified by a polymerase chain reaction using a primer pair specific to the 16S rDNA of T equigenitalis. These eight strains were chosen because they had previously been shown to represent eight distinct genotypes by pulsed-field gel electrophoresis analysis after separate digestion of the genomic DNA with ApaI or NotI. The eight strains could be classified into six or seven types by random amplified polymorphic DNA analysis using different kinds of primers. Amplified rDNA restriction analysis after separate digestion with five restriction enzymes, including AluI and MboI, of the 1,500 bp fragments of rDNA amplified by polymerase chain reaction did not discriminate the genomic variations among the eight strains of T equigenitalis. Thus, pulsed-field gel electrophoresis was shown to discriminate these eight organisms better than random amplified polymorphic DNA analysis, while amplified rDNA restriction analysis was found to be unsuitable for subtyping T equigenitalis.  相似文献   

Possible misidentification of Bacteroides sp., probably B. ureolyticus as Taylorella equigenitalis: implications for the laboratory diagnosis of CEM.     

J E Moore  B C Millar  J Xu  T C Buckley 《Veterinary research》2001,32(6):611-616

A wild-type isolate with similar morphological and phenotypic properties to Taylorella equigenitalis, the causative bacterial agent of contagious equine metritis (CEM), was referred for molecular identification by PCR amplification of the 16S rRNA gene. A species-specific PCR failed to yield a product compatible with that of T. equigenitalis. The direct sequencing of the universal 16S rRNA PCR amplicon suggested the presence of a Bacteroides sp., probably Bacteroides ureolyticus, with no consequent effects on the movement and transportation of the animal. Adoption of such a molecular means of identification through sequencing may aid in the identification of the atypical forms of Taylorella equigenitalis, as recently described, as well as differentiating this species from Taylorella asinigenitalis.  相似文献   

ULTRASONOGRAPHIC AND CLINICOPATHOLOGIC FINDINGS IN 21 DOGS WITH INTESTINAL ADENOCARCINOMA     

Melissa C.  Paoloni  DVM  Dominique G.  Penninck  DVM  DVSc  Antony S.  Moore  BVSc  MVSc 《Veterinary radiology & ultrasound》2002,43(6):562-567

In a retrospective study of 21 dogs with intestinal adenocarcinoma, the signalment, clinical presentation, laboratory findings, ultrasonographic features, treatment, and outcome were reviewed. Anorexia (n = 16), vomiting (n = 15), diarrhea (n = 10), and weight loss (n = 9) were the most common clinical signs reported. Ultrasonographic features that were evaluated included location, length, wall thickness, echogenicity, regional motility, layering, regional lymphadenopathy, and fluid accumulation proximal to the lesion site. All lesions were transmural and associated with complete loss of wall layering. Maximum wall thickening at the lesion site ranged from 7 to 17 mm (median 12 mm, mean 11.9 mm). Most of the dogs had a lesion measuring from 23 to 63 mm in length, (median 40 mm, mean 42 mm). Most intestinal lesions were poorly echogenic and had an irregular lumen. Fluid accumulation proximal to the lesion site was identified in 17 of 21 dogs, and in 13 of 17 dogs the fluid accumulation was considered moderate to severe. Regional lymphadenopathy and/or nodular mesentery/omentum were noted in 12 of 21 dogs. The tumor was located in small intestine for 15 dogs and in the colon for the remaining 6 dogs. Fifteen dogs were treated by surgical resection of the intestinal mass. Their median survival time was 233 days. Only gender appeared to influence survival. Female dogs lived a median of 28 days, whereas male dogs lived a median of 272 days.  相似文献