Measurement of transit time of digesta through sections of gastrointestinal tract of pigs fed with diets containing various sources of dietary fibre (non-starch polysaccharides)     

E A Latymer  A G Low  K Fadden  I E Sambrook  S C Woodley  H D Keal 《Archives of Animal Nutrition》1990,40(8):667-680

The effects of various sources of dietary fibre (defined as non-starch polysaccharides (NSP] on the transit time (TT) of digesta through sections of digestive tract were measured in pigs of 30-85 kg. The pigs were fitted with simple cannulas in the terminal ileum, caecum and mid-colon. Diets in experiments 1-3 were based on barley, wheat, soya bean meal and fish meal with NSP added in the form of wood cellulose (experiment 1), guar gum (experiment 2), wheat bran, pectin (experiment 3). Lactulose was also included in experiment 3 because of its NSP-like effects. Diets in experiments 4 and 5 were based on starch and casein and contained Phaseoluos vulgaris or Pisum sativum (experiment 4) and sugar beet pulp or wheat bran (experiment 5). Transit time (TT) was measured using 103Ruthenium phenanthroline to label solids and 51Chromium complexed to EDTA for liquids. Samples were taken every 3 h after marker administration for 51 h from all cannulas and the faecal output was collected every 3 h. The values obtained were very variable. The range of TT (h) defined as first arrival of markers and peak marker level was 3-12.2 and 3-12.2 to the ileum, 3-22.3 and 4.5-22.3 to the caecum, 4.5-50.3 and 16.5-48.8 to the colon and 24- less than 51 and 30- less than 51 to the rectum respectively.  相似文献   

Pharmacokinetics and pharmacodynamics of furosemide after oral administration to horses     

Johansson AM  Gardner SY  Levine JF  Papich MG  Lafevers DH  Goldman RB  Sheets MK  Atkins CE 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2004,18(5):739-743

Furosemide is the most common diuretic drug used in horses. Furosemide is routinely administered as IV or IM bolus doses 3-4 times a day. Administration PO is often suggested as an alternative, even though documentation of absorption and efficacy in horses is lacking. This study was carried out in a randomized, crossover design and compared 8-hour urine volume among control horses that received placebo, horses that received furosemide at 1 mg/kg PO, and horses that received furosemide at 1 mg/kg IV. Blood samples for analysis of plasma furosemide concentrations, PCV, and total solids were obtained at specific time points from treated horses. Furosemide concentrations were determined by reversed-phase high-performance liquid chromatography with fluorescent detection. Systemic availability of furosemide PO was poor, erratic, and variable among horses. Median systemic bioavailability was 5.4% (25th percentile, 75th percentile: 3.5, 9.6). Horses that received furosemide IV produced 7.4 L (7.1, 7.7) of urine over the 8-hour period. The maximum plasma concentration of 0.03 microg/mL after administration PO was not sufficient to increase urine volume compared with control horses (1.2 L [1.0, 1.4] PO versus 1.2 L [1.0, 1.4] control). There was a mild decrease in urine specific gravity within 1-2 hours after administration of furosemide PO, and urine specific gravity was significantly lower in horses treated with furosemide PO compared with control horses at the 2-hour time point. Systemic availability of furosemide PO was poor and variable. Furosemide at 1 mg/kg PO did not induce diuresis in horses.  相似文献   

Standards taking shape for health, welfare of fish     

Burns K 《Journal of the American Veterinary Medical Association》2005,227(10):1548-1549

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Animals, people still recovering from hurricane     

Burns K 《Journal of the American Veterinary Medical Association》2005,227(10):1550-1551

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Trust has a novel take on scholarships. New England fund exists to help local veterinary students     

Burns K 《Journal of the American Veterinary Medical Association》2005,227(12):1887

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Ov2 is a modulator of OvHV-2 RTA mediated gene expression     

Dry  Inga  Nightingale  Katie  Ferguson  Jack  Hopkins  John  Dalziel  Robert 《Veterinary research communications》2019,43(2):91-97

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Hepatic leptospiral infections in dogs without obvious renal involvement     

Katie E. McCallum  Fernando Constantino‐Casas  John M. Cullen  James H. Warland  Harry Swales  Niamh Linghley  Andre J. Kortum  Alex J. Sterritt  Tristan Cogan  Penny J. Watson 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2019,33(1):141-150

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What is your diagnosis? Middle ear material from a dog          下载免费PDF全文

Nicole M. Weinstein  Katie M. Boes  Elizabeth Mauldin  John Rossmeisl 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2016,45(1):195-196

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Together we build: The OVC Student Wives’ Auxiliary     

Lisa Cox  Katie Anderson  Elizabeth A. Stone 《The Canadian veterinary journal. La revue veterinaire canadienne》2016,57(1):32-36

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污水灌溉对林地土壤中磷的数量与形态影响   总被引：2，自引：0，他引：2  

胡慧蓉  王海龙  Katie Beecroft  Mark Kimberley 《土壤学报》2012,49(3):560-566

为避免城市生活污水携带的N、P进入水体,新西兰罗托鲁阿市处理后的污水直接喷灌至Whakarewarewa森林,同时建立污水灌溉林地处理系统长期定位试验地,以评价林地生态系统对污水携带营养物质的同化能力。为了解长期污水灌溉对土壤中P的数量、形态、环境的影响,对该灌溉系统中的土壤进行了剖面采样分析。结果表明:土壤TP(全磷)、Olsen P、M3P(Mehlich-3 P)在所有灌溉区的表层土壤(0～10 cm)均有显著(p<0.05)增加,部分指标的显著增加达深层土壤。随灌溉进入土壤的P大多被保存在上层土壤(0～40 cm)中。土壤中各形态的磷所占比例因长期污水灌溉而改变,灌溉前占优势的NaOH Po(以NaOH浸提得到的有机磷)经长期灌溉后被NaOH Pi(以NaOH浸提得到的无机磷)所取代,上层土壤WSP(水溶性磷,Wa-ter-soluble P)变化明显。以Olsen P 60 mg kg-1和M3P 150 mg kg-1为环境临界值可预测土壤剖面中P的淋失危机,WSP可望成为适用更广的土壤P淋失环境危机预测指标。  相似文献