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   

Larvicidal activity of substituted chalcones against Aedes aegypti (Diptera: Culicidae) and non‐target organisms     

Sabrina K Targanski  Janaína R Sousa  Geilly MS de Pdua  Jssica M de Sousa  Lucas CC Vieira  Marcos A Soares 《Pest management science》2021,77(1):325-334

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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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Transmissible venereal tumour (TVT) in a dog     

AJM Richards  CC Williamson 《New Zealand veterinary journal》2013,61(1)

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Comparison of Different Treatments for Oestrous Induction in Seasonally Anovulatory Mares     

G Vizuete  E Diez  J Galisteo  E Agüera  E Aguilera‐Tejero  CC Perez‐Marín 《Reproduction in domestic animals》2013,48(3):463-469

The aim of this study was to evaluate the effects of different treatments for induction and synchronization of oestrus and ovulation in seasonally anovulatory mares. Fifteen mares formed the control group (C), while 26 mares were randomly assigned to three treatment groups. Group T1 (n = 11) were treated with oral altrenogest (0.044 mg/kg; Regumate^®) during 11 days. Group T2 (n = 7) was intravaginally treated with 1.38 g of progesterone (CIDR^®) for 11 days. In group T3 (n = 8), mares were also treated with CIDR^®, but only for 8 days. All mares received PGF2α 1 day after finishing the treatment. Sonographic evaluation of follicles, pre‐ovulatory follicle size and ovulation time was recorded. Progesterone and leptin levels were analysed. Results show that pre‐ovulatory follicles were developed after the treatment in 88.5% of mares. However, the pre‐ovulatory follicle growth was dispersal, and sometimes it was detected when treatment was not finished. While in mares treated with intravaginal device, the follicle was soon detected (1.5 ± 1.2 days and 2.3 ± 2.0 days in T2 and T3 groups, respectively), in T1 group, the pre‐ovulatory follicle was detected slightly later (3.9 ± 1.6 days). The interval from the end of treatment to ovulation did not show significant differences between groups (T1 = 13.1 ± 2.5 days; T2 = 11.0 ± 3.6 days; T3 = 13.8 ± 4.3 days). The pregnancy rate was 47.4%, similar to the rate observed in group C (46.7%; p > 0.05). Initial leptin concentrations were significantly higher in mares, which restart their ovarian activity after treatments, suggesting a role in the reproduction mechanisms in mares. It could be concluded that the used treatments may be effective for oestrous induction in mares during the late phase of the seasonally anovulatory period. Furthermore, they cannot synchronize oestrus, and then, it is necessary to know the reproductive status of mares when these treatments are used for oestrous synchronization.  相似文献   

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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