Differential diagnosis of dysphagia in the horse     

P C Wagner  N W Rantanen  B D Grant 《Modern veterinary practice》1979,60(12):1029-1033

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Phenylbutazone inhibition of equine platelet function.     

K M Meyers  C Lindner  J Katz  B Grant 《American journal of veterinary research》1979,40(2):265-270

Nonsteroidal anti-inflammatory drugs impair platelet aggregation and secretion in man, pigs, and rabbits and inhibit platelet thromboxane/prostaglandin synthesis. The present investigation studied the effects of phenylbutazone on platelet aggregation and bleeding times in the horse. Aggregation responses to adenosine diphosphate and collagen were markedly impaired 15 minutes and 2 hours after treatment, but 4 hours after treatment, platelet responses approximated those prior to treatment. The in vivo effect of phenylbutazone correlated with its plasma concentrations. Phenylbutazone, like aspirin, appeared to exert its effect by inhibiting thromboxane/prostaglandin synthesis, because thrombin-induced malondialdehyde formation was inhibited. However, unlike aspirin, free arachidonate-induced malondialdehyde synthesis was reduced but not eliminated, which suggested that phenylbutazone may have more than one site of action. Although collagen-induced platelet aggregation was impaired, a response was still present, and bleeding times were not altered by phenylbutazone treatment. To account for these findings, it is proposed that equine platelets can respond to collagen by thromboxane/prostaglandin independent pathways. The physiologic and pathophysiologic importance of these findings is discussed.  相似文献   

Effects of Feeding Time and Frequency on Growth of Channel Catfish Ictalurus punctatus in Closed Recirculating Raceway Systems     

Herman H.  Jarboe William J.  Grant 《Journal of the World Aquaculture Society》1996,27(2):235-239

Abstract.– Experiments were conducted to evaluate the effects of feeding time and frequency on the growth, survival, feed conversion, and body composition of channel catfish Ictalurus punctatus cultured in closed recirculating raceway systems. In separate experiments, two stocking sizes (18 and 232 g/fish) of channel catfish were examined. Treatments consisted of 1) feeding catfish once daily, 3% of body weight at 0800 h; 2) feeding catfish once daily, 3% of body weight at 1200 h; 3) feeding catfish once daily, 3% of body weight at 1700 h; and 4) feeding catfish three times daily, 1% of body weight at 0800 h, 1200 h, and 1700 h. Weight gain, specific growth, feed conversion, percentage survival, and fillet proximate composition of channel catfish among treatments did not differ ( P > 0.05). The percentage visceral fat of channel catfish fed the single meal at 0800 h was significantly lower (P < 0.05) than channel catfish receiving multiple feedings, but was not different than the visceral fat content of channel catfish fed at 1200 h and 1700 h. Under the conditions of this study, results indicate neither feeding time or feeding frequency significantly influences the growth, survival, and body composition of channel catfish raised in closed recirculating raceway systems.  相似文献   

Arterial blood gas tension and acid base balance during exercise in horses with pharyngeal lymphoid hyperplasia     

W M Bayly  B D Grant  R G Breeze 《Equine veterinary journal》1984,16(5):435-438

Arterial blood gas and acid-base values during maximal exercise over a 1.2 km distance were recorded in four Thoroughbred horses before and after the chemical induction of pharyngeal lymphoid hyperplasia (PLH). Samples were collected after galloping 0.8 km and 1.2 km, immediately upon stopping and 5 mins after exercising. In only one horse was any difference noted in the pre and post PLH induction results. The horse was more hypercapnoeic at the 1.2 km mark and also took much longer to complete the gallop when it had PLH. However, it also had signs of lower respiratory disease. In the other horses, the only changes which could be attributed to PLH were seen immediately upon stopping. It seems that PLH does not inhibit gas exchange during exercise unless the lesions are extremely severe.  相似文献   

Infectious Tropical Diseases of Domestic Animals          下载免费PDF全文

M. Grant Maxie 《The Canadian veterinary journal. La revue veterinaire canadienne》1987,28(8):539

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ACTION TAKEN IN QUEENSLAND TO PREVENT A POSSIBLE INRODUCTION OF BLUETONGUE VIRUS IN CATTLE SEMEN     

K. M. Grant  B.V.Sc.  A. L. Clay  B.V.Sc. K. B. Hale  B.V.Sc. 《Australian veterinary journal》1967,43(1):31-33

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Abdominal fused testicles in a miniature horse: A case report     

Kevin Sherman DVM  Grant Myhre DVM  Roger Well DVM  diplomate ACVP 《Journal of Equine Veterinary Science》1989,9(4)

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Seroprevalence of caprine arthritis encephalitis in the Jamaican goat population     

G. H. Grant  P. M. Johnachan  D. Oliviera  S. Pitterson 《Tropical animal health and production》1988,20(3):181-182

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Injuries to the cranial cruciate ligament and associated structures: summary of clinical, radiographic, arthroscopic and pathological findings from 10 horses     

M Prades  B D Grant  T A Turner  A J Nixon  M P Brown 《Equine veterinary journal》1989,21(5):354-357

The clinical, radiographic, arthroscopic and pathological findings of 10 horses with injury to the cranial cruciate ligament are presented. The most consistent clinical signs included moderate to severe distension of the femoropatellar joint and a Grade III to a Grade V out of V lameness. Craniocaudal instability could be elicited in five horses under general anaesthesia and in one conscious horse. Radiographic evaluation of the stifles revealed that avulsion fracture of the medial intercondylar eminence was the most common finding in six out of 10 horses. Arthroscopic examination of the affected femorotibial joints were performed in five horses. This confirmed the presumptive diagnosis of cranial cruciate ligament injury or rupture. Post mortem examinations were performed on two horses which documented partial tears of the cranial cruciate ligament.  相似文献   

Factors affecting red-winged blackbird response to methiocarb,an avian repellent     

R.Daniel Thompson  C.Val Grant  Donald J. Elias 《Pesticide biochemistry and physiology》1981,15(2):166-171

Two physiological responses (heart rate and respiration rate) and a behavioral response (keypecking rate) were measured to determine whether or not bait from and/or gastrointestinal content would influence the efficacy of an avian repellent on red-winged blackbirds. Methiocarb was administered under four conditions (i.e., cracked corn or pellet baits and food deprivation or nondeprivation). Results show that both physiological and behavioral responses to methiocarb are much more pronounced when it is administered in pellet form to food-deprived birds. These findings help explain some inconsistencies in results of field evaluations of methiocarb and illustrate the significance of formulation and the timing of treatment application as important factors in development of bird damage control agents and techniques.  相似文献