A bluetongue epizootic in northwestern United States     

S M Parish  J F Evermann  B Olcott  C Gay 《Journal of the American Veterinary Medical Association》1982,181(6):589-591

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Seasonal variation in passive transfer of immunoglobulin G1 to newborn calves   总被引：3，自引：0，他引：3  

C C Gay  T C McGuire  S M Parish 《Journal of the American Veterinary Medical Association》1983,183(5):566-568

Forty-eight-hour serum concentrations of immunoglobulin G1 (IgG1) were determined for 123 female calves born on 1 farm during a 12-month period and fed 2.8 L of colostrum by esophageal feeder within 2 hours of birth. Mean monthly serum IgG1 concentrations were lowest in the winter, and increased during the spring and early summer to reach their peak in September, after which they decreased. Eight of 64 calves (12.5%) born from June through October had failure of passive transer of IgG1 (serum IgG1 less than 8 mg/ml), whereas 27 of 58 (46.5%) born from November through May had failure of passive transfer.  相似文献   

OBSTRUCTION OF THE SMALL COLON BY INTRAMURAL HAEMATOMA IN THREE HORSES     

V. C. Speirs  J. C. van  Veenendaal  B. A. Christie  R. B. Lavelle  C. C. Gay 《Australian veterinary journal》1981,57(2):88-90

SUMMARY Three cases of intramural haematoma of the small colon of horses are presented. In all cases the haematoma obstructed the lumen and caused an accumulation of faeces and gas. The horses were in shock and had acute abdominal pain. Exploratory abdominal surgery revealed the haematomas and showed them to be associated with chronic infection and terminal rupture in one animal which was subsequently killed, and an iatrogenic perforation of the terminal small colon in another which survived after intestinal resection. In the remaining horse, which died without recovering after intestinal resection, no cause was found.  相似文献   

Cardiopulmonary resuscitation outcomes of dogs and cats at a veterinary teaching hospital before and after publication of the RECOVER guidelines     

V. E. R. Dazio  J. M. Gay  S. N. Hoehne 《The Journal of small animal practice》2023,64(4):270-279

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Linguistic structure and transposition     

M Cole  J Gay  J Glick  D Sharp 《Science (New York, N.Y.)》1969,164(875):90-91

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Determination of ephedrine alkaloids and synephrine in dietary supplements by column-switching cation exchange high-performance liquid chromatography with scanning-wavelength ultraviolet and fluorescence detection     

Niemann RA  Gay ML 《Journal of agricultural and food chemistry》2003,51(19):5630-5638

An HPLC method with on-line cleanup coupled to the separation column is described for determination of (-)-norephedrine, (+)-norpseudoephedrine, (-)-ephedrine, (+)-pseudoephedrine, (-)-N-methylephedrine, (+)-N-methylpseudoephedrine, and (+/-)-synephrine in finished dietary supplement products. Test portions were extracted in acidified aqueous acetone. A filtered aliquot was cleaned up on a strong cation exchange (SCX) precolumn that later was automatically coupled to the SCX analytical column. Measurement was by full-scan UV spectra for confirmation of identity by spectral matching and real-time integration of three wavelength signals for multiple quantitation. (+/-)-Synephrine was also quantitated by native fluorescence. Recovery averaged 95-100%. Determination of the major ingredients (-)-ephedrine, (+)-pseudoephedrine, and (+/-)-synephrine compared favorably to findings by an independent LC-MS analysis for a set of 25 samples. The results of a survey were reported for total ephedrine alkaloid and synephrine content and were compared to content declaration, for approximately 48 finished products.  相似文献   

A Biomechanical Study of Laparoscopic 4S‐Modified Roeder and Weston Knot Strength in 3–0 Polyglactin 910 and 3–0 Polydioxanone     

Russell W. Fugazzi DVM  Boel A. Fransson DVM  PhD  Diplomate ACVS  Katie M. Curran DVM  Howard M. Davis PhD  John M. Gay DVM  PhD  Diplomate ACVS 《Veterinary surgery : VS》2013,42(2):198-204

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Effect of Two Instrument Designs on Laparoscopic Skills Performance     

Sabrina L. Barry DVM  Boel A. Fransson DVM PhD Diplomate ACVS  Benjamin F. Spall DVM  John M. Gay DVM PhD Diplomate ACVPM 《Veterinary surgery : VS》2012,41(8):988-993

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Bioavailability of magnesium in beef cattle fed magnesium oxide or magnesium hydroxide     

G M Davenport  J A Boling  N Gay 《Journal of animal science》1990,68(11):3765-3772

Two experiments were conducted to compare Mg bioavailability from Mg oxide (MgO) vs Mg hydroxide (Mg(OH)2) fed in either a completely mixed diet or a mineral supplement. In Exp. 1, these Mg sources were incorporated into completely mixed diets and offered to 15 steers (282 kg) allotted to three treatments: control diet containing .19% Mg, control plus .2% added Mg as MgO, or control plus .2% added Mg as Mg(OH)2. Each calf was fed 5 kg/d of the respective diet during 10-d adjustment and 7-d collection periods. Blood samples were collected on d 1, 3 and 7. Mg supplementation increased (P less than .01) fecal and urinary Mg excretions, whereas apparent Mg absorption (%) and retention were similar (P greater than .10) for all treatments. Plasma Mg concentrations were similar (P less than .10) for calves supplemented with MgO and Mg(OH)2 but were higher (P less than .05) for Mg supplemented than for control calves on d 7. In Exp. 2, these Mg sources were incorporated into mineral supplements and offered free choice to 30 spring-calving beef cows gazing tetany-inducing pastures from March 6 to May 1. Each of three groups of 10 cows was assigned to a 5.7-ha tall fescue pasture and offered either a control supplement or a supplement containing 40% MgO or Mg(OH)2. Blood samplers were collected on d 0, 7, 14, 28, 42 and 56. Plasma Mg concentrations were not different (P greater than .10) for cows offered MgO and Mg(OH)2 but were higher (P less than .01) for Mg-supplemented than for control cows on d 28, 42 and 56.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

Crooked calf disease: a histological and histochemical examination of eight affected calves     

L C Abbott  R H Finnell  G F Chernoff  S M Parish  C C Gay 《Veterinary pathology》1986,23(6):734-740

Macroscopic, histopathologic, and histochemical investigations were made on a group of eight neonatal Angus X Hereford calves, selected from an ongoing outbreak of crooked calf disease among calving heifers. Arthrogryposis of the forelimbs was seen to varying degrees in all eight animals, and torticollis was present in six calves. Histopathology, using hematoxylin and eosin stain, did not reveal any striking or consistent lesion in the affected animals; the majority of the tissues sampled were normal. Muscle samples were processed for adenosine triphosphatase (ATPase) and NADH-tetrazolium reductase (NADH-tr) histochemistry, and the data suggest that a primary myopathy is not responsible for the congenital anomalies in the affected calves.  相似文献