Evaluation of Factors Contributing to Daily Within-Horse Variation of Plasma Alpha-Tocopherol Concentration     

Paul D. Siciliano  Shannon E. Pratt-PhillipsLauren E. Dowler  BS 《Journal of Equine Veterinary Science》2009

The current study was conducted to evaluate daily within-horse variation of plasma alpha-tocopherol concentration (TOC) (Experiment 1 [EXPT1]) and to determine the effect of a single meal on plasma TOC (Experiment 2 [EXPT2]). In EXPT1, venous jugular blood samples were collected from four pregnant (6–7 months of gestation), light horse mares (8.8 ± 2.9 years of age, mean ± SD; range, 5–11 years of age) between 7:30 AM and 8:30 AM, followed by eight hourly samples, and analyzed for plasma TOC. All horses were fed 5 kg dry matter (DM) grass hay 18 hours before sample collection and received no additional feed during the sampling period. Mean within-horse coefficient of variation for TOC was 3.5% ± 0.01%. In EXPT2, seven mature light horses, four mares and three geldings (4.9 ± 4.4 years of age, mean ± SD; range, 2–14 years of age), were randomly assigned to one of two treatments (fasted [FST; n = 7] or fed [FD; n = 7]), followed by reversal of treatments 24 hours later. At 7:30 AM, FD horses were fed 2.1 kg DM grain-mix concentrate (187 IU vitamin E/kg DM) plus 3.3 kg DM mixed-grass hay, whereas FST horses received no feed. Neither group received any feed for 18 hours before 7:30 AM. Venous jugular blood samples were collected at 10:30 AM from all horses and analyzed for plasma TOC. The mean (±SD) within-horse paired-treatment difference was not significant (0.05 ± 0.12 μg/mL). The results suggest that variation in within-horse plasma TOC is relatively small over an 8-hour period in fasting horses and is unaffected 3 hours after a hay grain meal.  相似文献   

Comparison of the volatile constituents in cold-pressed bergamot oil and a volatile oil isolated by vacuum distillation     

Belsito EL  Carbone C  Di Gioia ML  Leggio A  Liguori A  Perri F  Siciliano C  Viscomi MC 《Journal of agricultural and food chemistry》2007,55(19):7847-7851

The vacuum distillation of bergamot peels furnishes a high-quality essential oil that is totally bergapten-free. This oil was compared with that produced by distillation of cold-pressed oils and those commercially available. The oil obtained by vacuum distillation of the bergamot vegetable matrix shows a composition quite similar to that of the cold-pressed oil. It also displays qualitative characteristics that are superior with respect to those normally observed for essential oils isolated by distillation of cold-pressed oils. Oils isolated by the method presented here can constitute ideal candidates in producing foods, for example, Earl Grey tea, and cosmetic preparations.  相似文献   

RADIOGRAPHIC DIAGNOSIS: INTRATHORACIC GALLBLADDER IN A DOG     

Federica  Rossi  DVM  SRV  Lorrie  Gaschen  DVM  Dr.med. vet  PhD  Johann  Lang  PD  Dr. med. vet. 《Veterinary radiology & ultrasound》2003,44(6):652-654

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ENDOSCOPIC ULTRASONOGRAPHY FOR THE DIAGNOSIS OF INTRATHORACIC LESIONS IN TWO DOGS     

L. Gaschen  DVM  DR. Med. Vet.  PhD P. Kircher  DR. Med. Vet. G. Hoffmann  DR. Med. Vet.  N. Luckschander  DR. Med. Vet.  H. Schmoekel  DR. Med. Vet.  D. Spreng  DR. Med. Vet.  J. Lang  PD  DR. Med. Vet. 《Veterinary radiology & ultrasound》2003,44(3):292-299

Endoscopic ultrasound was developed initially in humans to overcome limitations of conventional ultrasound in examining certain internal organs due to intervening bone or air-filled structures. Endoscopic ultrasound has been used most widely in investigation of the gastrointestinal tract in humans, but many intrathoracic applications as well as endoscopic ultrasound-guided techniques have recently been described. Mediastinal and pulmonary structures can be examined with endoscopic ultrasound since a high frequency ultrasound probe can be brought into close contact with the areas of interest via a transesophageal approach. The purpose of this report is to describe the application of endoscopic ultrasound as an aid in the diagnosis of intrathoracic disease in the dog. Two dogs, one with a history of prior esophageal foreign body extraction, the other with apathy, weakness and dyspnea were referred for further investigation. Both dogs had caudal intrathoracic soft tissue opacities diagnosed radiographically, but their origin and nature were difficult to determine. Conventional ultrasound was limiting in both dogs due to their location and superimposition of gas-filled structures. With endosonography lesions were characterized more completely. We have found endoscopic ultrasound to be an elegant diagnostic tool for the investigation of radiographically detected intrathoracic lesions in the dog whose origins are difficult to determine or do not lend themselves to investigation by conventional ultrasound. Endoscopic ultrasound provides valuable diagnostic information complementary to that provided radiographically which aids in therapeutic planning. Endoscopic ultrasound was also more sensitive for detecting mediastinal lymphadenomegaly than radiography in one of the dogs. An additional advantage of endoscopic ultrasound is the fact that US-guided tissue sampling can be performed during the examination.  相似文献   

MAGNETIC RESONANCE IMAGING OF INTRACRANIAL TISSUE ACCUMULATIONS IN DOMESTIC DUCKS (Anas platyrhynchos f. dom.) WITH FEATHER CRESTS     

Thomas  Bartels  Dr. Rer. Nat.  Jürgen  Brinkmeier  Dr. Med. Vet.  Susanne  Portmann  Med. Vet.  Ulrich  Baulain  Dr. sc. Agr.  Axel  Zinke  Dr. Med. Vet.  Maria-Elisabeth  Krautwald-Junghanns  Prof. Dr. Med. Vet.  Alois  Boos  PD Dr. Med. Vet.  Petra  Wolf  Dr. Med. Vet.  Norbert  Kummerfeld  Dr. Med. Vet 《Veterinary radiology & ultrasound》2001,42(3):254-258

The crested breed of domestic duck (Anas platyrhynchos f. dom.) has been described as a variety which has high pre- and postnatal mortalities, malformations in skull and brain anatomy, and several central nervous deficiencies. In addition, intracranial tissue accumulations have been diagnosed in purebred Crested ducks. The incidence, heredity and inheritance of these accumulations as well as their pathogenesis are still generally unknown. The aims of this study were to examine the head of Crested ducks, plain-headed duck breeds, and their crossbreeding relating to the incidence of intracranial alterations. These examinations were performed using magnetic resonance imaging. We found a high incidence of intracranial tissue accumulations in domestic ducks with feather crests. Creasted ducks had more intracranial tissue deposits than plain-headed ducks (p < 0.001). In the present study a correlation between the volume of the crest cushion and the volume of the intracranial tissue deposit could not be found (r = 0.014). Some of the Crested ducks had encephaloceles in addition to the crest cushion.  相似文献   

Effect of a second treatment of prostaglandin F2α during the Ovsynch program on fixed-time artificial insemination conception rates and luteolysis in split-calving,pasture-fed dairy cows     

JM Rheinberger  DD Colson  DS Beggs  PD Mansell  MA Stevenson  RJ Rheinberger  MF Pyman 《Australian veterinary journal》2020,98(5):190-196

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Effect of turn-out time on pasture NSC intake and hindgut fermentation characteristics     

A.C. Pearson  P.D. Siciliano  S.J. McLeod  V. Fellner 《Journal of Equine Veterinary Science》2011,31(5-6):297-298

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Recovery of free amino compounds from potato starch processing water by use of ion exchange II. Large-scale laboratory experimentation     

E. G. Heisler  James Siciliano  R. H. Treadway  C. F. Woodward 《American Journal of Potato Research》1962,39(2):78-82

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Effect of dietary boron on immune function in growing beef steers*     

R. S. Fry  K. E. Lloyd  S. K. Jacobi  P. D. Siciliano  W. P. Robarge  J. W. Spears 《Journal of animal physiology and animal nutrition》2010,94(3):273-279

Thirty‐six Angus and Angus × Simmental cross steers (initial BW 269.5 ± 22.3 kg) were used to determine the effects of dietary boron (B) on performance and immune function. Steers were fed on one of the three dietary treatments: (i) control (no supplemental B; 7.2 mg B/kg DM), (ii) 5 mg supplemental B/kg DM and (iii) 50 mg supplemental B/kg DM, from sodium borate for 78 days. Supplementation of dietary B had no effect on body weight (BW) gain, feed intake or gain:feed during the study. Jugular blood samples were collected prior to feeding on days 28, 63 and 77 for plasma‐B analysis. Supplementation of dietary B increased (p < 0.001) plasma B‐concentration in a dose‐responsive manner. Furthermore, plasma B‐concentration was correlated (p < 0.001; R² = 0. 95) to daily B‐intake (mg B/day). Jugular blood was also collected, from an equal number of steers from each treatment, on day 42 or 44 for determination of in vitro production of interferon‐γ and tumour necrosis factor‐α from isolated monocytes and assessment of lymphocyte proliferation. Dietary B did not affect T‐ or B‐lymphocyte proliferation or in vitro cytokine production from monocytes. On day 49 of the study, the humoral immune response was assessed by i.m. injection of a 25% pig red blood cell (PRBC) solution for determination of anti‐PRBC IgG and IgM titre responses. Boron‐supplemented steers had greater (p = 0.035) anti‐PRBC IgG titres than controls on day 7 but not on day 14 or 21 post‐injection. Anti‐PRBC IgM titres did not differ throughout the sampling period. Results from this study indicate that supplemental B had minimal effects on immune function and did not affect performance of growing steers.  相似文献   

Factors associated with colostrum immunoglobulin G concentration in northern‐Victorian dairy cows          下载免费PDF全文

AJ Phipps  DS Beggs  AJ Murray  PD Mansell  MF Pyman 《Australian veterinary journal》2017,95(7):237-243

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