Canine Idiopathic Thrombocytopenic Purpura     

David C. Lewis  Kenneth M. Meyers 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1996,10(4):207-218

Canine idiopathic thrombocytopenic purpura (ITP) is a disease in which antibodies bound to the surface of platelets mediate premature platelet destruction by macrophages. ITP in dogs and chronic ITP in humans are analogous diseases. This article draws on information from the literature on ITP in dogs and in humans, and reviews the pathogenesis, diagnosis, and treatment of ITP in dogs. J Vet Intern Med 1996;207–218. Copyright © 1996 by the American College of Veterinary Internal Medicine .  相似文献   

Persistence of antibody to Venezuelan equine encephalomyelitis virus in cotton mice     

W J Bigler  E Lassing  A L Lewis 《Journal of the American Veterinary Medical Association》1974,165(9):832-833

  相似文献   

Reticulocyte response in the cat     

D V Cramer  R M Lewis 《Journal of the American Veterinary Medical Association》1972,160(1):61-67

  相似文献   

Amino acid interactions in chick nutrition. 3. Interdependence in amino acid requirements   总被引：1，自引：1，他引：0  

J P D'mello  D Lewis 《British poultry science》1970,11(3):367-385

The quantitative nature of specific interactions between certain indispensable amino acids has been examined in a series of factorial experiments with young chicks.

It was demonstrated that when the dietary concentration of lysine was 1.10 per cent, the arginine requirement of the chick was 0.80 per cent. When the lysine concentration was raised to 1.35, 1.60 or 1.85 per cent of the diet, the arginine requirement was increased to 0.92, 1.04 and 1.15 per cent of the diet respectively. In another experiment, it was found that when due importance had been attached to the interaction between lysine and arginine, the requirements for these amino acids could be lowered to 0.94 per cent and 0.81 per cent respectively. These concentrations are considerably lower than those normally recommended for young chicks.

The interrelationship between leucine and isoleucine has also been defined in quantitative terms. At concentrations of 1.40, 2.15 or 2.90 per cent leucine, the isoleucine requirement was 0.58, 0.62 and 0.65 per cent of the diet respectively.

In a further study, a similar dependence of valine requirements upon the dietary concentration of leucine was observed: at concentrations of 1.40, 2.40 or 3.40 per cent leucine, the valine requirement was shown to be 0.77, 0.89 and 1.01 per cent respectively. The results of the experiment on the threonine‐tryptophan interaction indicated that at concentrations of 0.80, 1.30, 1.80 or 2.30 per cent threonine, the tryptophan requirement was 0.17, 0.18, 0.19 and 0.20 per cent of the diet respectively.

The results of the present study permit the general conclusion that the requirements of amino acids are interdependent.  相似文献   

Nonneurongenic causes of abnormal micturition in the dog and cat     

D R Finco  C A Osborne  R E Lewis 《The Veterinary clinics of North America》1974,4(3):501-516

  相似文献   

The effect of feeding toxic groundnut meal to sheep over a period of five years   总被引：1，自引：0，他引：1  

G Lewis  L M Markson  R Allcroft 《The Veterinary record》1967,80(9):312-314

  相似文献   

Photorefractoriness in broiler breeders: sexual maturity and egg production evidence     

Lewis PD  Ciacciariello M  Gous RM 《British poultry science》2003,44(4):634-642

1. Photorefractoriness was assessed in two lines of broiler breeders. In one trial, male-line and female-line pullets were reared on the floor and transferred to individual cages at 15 weeks. Birds were either maintained on 8-, 11- or 16-h photoperiods or transferred from 8- to 16-h photoperiods at 67 or 124 d. In the second trial, female-line pullets were concurrently housed in the same rearing facilities as trial 1 and transferred to adult floor-pens at 12 weeks. These birds were either maintained on 11- or 16-h photoperiods or transferred from 8- to 11-h or from 8- to 16-h photoperiods at 140 d. 2. In the cages, male-line and female-line birds responded similarly to the lighting treatments, but with the male-line maturing 1 to 2 weeks later than the female-line in each case. Birds on constant 11-h photoperiods matured 3 to 8 d earlier than constant 8-h birds, but 3 weeks earlier than constant 16-h birds. Birds photostimulated at 67 d matured at a similar time to constant 16-h birds, but almost 7 weeks later than those transferred from 8 to 16 h at 124 d. In the floor facilities, constant 11-h birds matured 3 weeks earlier than constant 16-h birds, but almost 2 weeks later than either of the photostimulated groups. Birds transferred from 8 to 16 h matured 4d earlier than those transferred from 8 to 11 h. 3. Caged birds maintained on 16 h or transferred from 8 to 16 h at 67 d laid at least 24 fewer eggs, and had more hens not laying at 58 weeks, than birds maintained on 11-h days or those transferred from 8 to 16 h at 124 d. In the floor-pens, constant 11-h and both photostimulated groups produced about 20 more eggs to 56 weeks of age than the constant 16-h controls. 4. Collectively, these findings indicate that conventionally managed broiler breeders exhibit photorefractoriness. Additionally, a combination of photorefractoriness and controlled feeding appears to prevent broiler breeders from being photoresponsive until at least 10 weeks of age, and to cause some individuals still to be photoperiodically non-responsive at 18 weeks.  相似文献   

Gastric ulceration in an equine neonate          下载免费PDF全文

Lewis S 《The Canadian veterinary journal. La revue veterinaire canadienne》2003,44(5):420-421

A 24-hour-old colt presented with clinical signs consistent with gastric ulceration. Treatment was initiated with a histamine type-2 receptor antagonist and clinical signs resolved. Gastroscopy at 16 d confirmed the presence of a gastric ulcer. Although gastric ulceration is common in foals, it is rarely reported in foals this young.  相似文献   

Circular external skeletal fixation stabilization of antebrachial and crural fractures in 25 dogs     

Anderson GM  Lewis DD  Radasch RM  Marcellin-Little DJ  Degna MT  Cross AR 《Journal of the American Animal Hospital Association》2003,39(5):479-498

Fracture stabilization using circular external skeletal fixation was evaluated in 14 dogs with antebrachial fractures and 11 dogs with crural fractures. Most dogs were consistently weight bearing on the stabilized limb by 3 days following surgery. Although all dogs developed minor wire/pin tract inflammation and eight dogs developed major wire/pin tract inflammation, postoperative lameness was not consistently associated with wire/pin tract complications. Fractures in 23 dogs achieved radiographic union (mean +/- standard deviation [SD], 61 +/- 21 days; median, 57 days) without additional surgery; two dogs required restabilization of their fractures with linear fixators. Twenty of the 21 owners that could be contacted felt their dog had no (n=15) or only a mild (n=5) intermittent lameness at the time of final, long-term (mean +/- SD, 37 +/- 17 months; median, 42 months) assessment.  相似文献   

Cross-sectional study of serum antibodies against Sarcocystis neurona in cats tested for antibodies against Toxoplasma gondii     

Rossano MG  Murphy AJ  Vrable RA  Vanzo NE  Lewis SK  Sheline KD  Kaneene JB  Mansfield LS 《Journal of the American Veterinary Medical Association》2002,221(4):511-514

  相似文献