Hamlet Minus The Prince Of Denmark Alan MacFarlane,Resources and Population: A Study of the Gurungs of Nepal,University of Cambridge Press,Cambridge, 1976, pp xviii­364, £12.50.     

Clive Dewey 《Asia Pacific viewpoint》1980,21(1):74-77

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Suspected Spinal Epidural Empyema and Associated Vertebral Osteomyelitis (Physitis)in a Dog   总被引：1，自引：0，他引：1  

Richard M. Jerram  BVSc  MRCVS  Curtis W. Dewey  DVM  MS 《Journal of Veterinary Emergency and Critical Care》1998,8(3):216-221

A 1 year old female Aurstralian Heeler dog was presented for fever and paraplegia of recent onset. Radiography and myelography revealed osteolysis of the first lumber (L₁) vertebra and extensive epidural spinal cord compression from the level of the thirteenth thoracic (T₁₃) to the fourth lumbar (L4) vertebra. A decompressive hemilaminectomy was performed; purulent-appearing fluid and inflamed epidural fat were present in the vertebral canal. The neurologic recovery of the dog was satisfactory 6 months following surgery.  相似文献   

THE ST. LOUIS CONGRESS OF ARTS AND SCIENCE     

Dewey J 《Science (New York, N.Y.)》1903,18(464):665-668

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Timing applications for control of potato aphids on Long Island     

W. A. Rawlins  R. W. Roth  J. E. Dewey 《American Journal of Potato Research》1943,20(7):184-189

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THE AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE SCIENCE AS SUBJECT-MATTER AND AS METHOD     

Dewey J 《Science (New York, N.Y.)》1910,31(787):121-127

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Evaluating critical factors to the economic feasibility of semi-intensive pig rearing in western Kenya     

Mike Levy  Cate Dewey  Alfons Weersink  Florence Mutua  Natalie Carter  Zvonimir Poljak 《Tropical animal health and production》2014,46(5):797-808

The purpose of this research is to assess how season, ADG, opportunity costs of farm-grown feeds, pig weight, and butcher price variation impact the economic potential of semi-intensive pig rearing. We developed a unique algorithm that emulates least-cost pig feeding and used it to assess the impact of the aforementioned factors on farmers’ maximum revenue and profit potential when pigs are sold to local butchers in western Kenya. When considered as independent factors influencing feed costs to grow a pig to a market weight of 30 kg, variation in ADG, opportunity cost of feed, and weaning season resulted in feed cost differences of up to 982, 947, and 379 Kenyan shillings (KES), respectively. The variation in revenues attributable to butcher or butcher negotiation and seasonal variance of butcher prices for a 30 kg pig was 744 and 225 KES, respectively. Feed items most commonly chosen for least-cost feed rations were small dried fish, cooked ground maize, whole maize, millet, cassava foliage, sweet potato vines, bone meal, avocado, and mango. Smallholder farmers who can feed pigs to reach higher ADG have lower opportunity costs of feeds and/or who effectively bargain with butchers can benefit from semi-intensive pig rearing. Farmers without access to at least some zero-cost feeds and farmers with opportunity costs of feeds exceeding 50 % of the market price will not earn positive returns from semi-intensive pig rearing.  相似文献   

Seminal Leucocytary Profile in Beef Bulls     

AL Zart  VCL Jurgielewicz  CE Fernandes 《Reproduction in domestic animals》2014,49(5):719-724

Despite evidences that seminal leucocytes could affect semen quality, references for the frequency and concentration of these cells in bulls are not available. The aim of this study was to determine the normal concentration of leucocytes in beef bulls and to correlate this characteristic with semen quality. First, 57 bulls from artificial insemination centres were evaluated to obtain the normal leucocytary profile values. Next, 382 bulls were subjected to breeding soundness evaluation. The average concentration of leucocytes in bovine semen was 4.73 × 10⁶/ml. Unsatisfactory bulls showed a higher number of leucocytes/field than that in the satisfactory ones. Logistic regression analysis revealed that the unsatisfactory bulls showed 6.5‐fold more chances of having higher leucocyte counts than satisfactory ones. Values of up to 1 leucocyte/field in the bull ejaculate are considered physiologically normal, whereas >5 leucocytes/field is associated with poor semen quality.  相似文献   

Molecular epidemiology of clinical isolates of Pseudomonas aeruginosa isolated from horses in Ireland     

Tazumi A  Maeda Y  Buckley T  Millar B  Goldsmith C  Dooley J  Elborn J  Matsuda M  Moore J 《Irish veterinary journal》2009,62(7):456-459

Clinical isolates (n = 63) of Pseudomonas aeruginosa obtained from various sites in 63 horses were compared using ERIC2 RAPD PCR to determine their genetic relatedness. Resulting banding patterns (n = 24 genotypes) showed a high degree of genetic heterogeneity amongst all isolates examined, indicating a relative non-clonal relationship between isolates from these patients, employing this genotyping technique. This study characterised 63 clinical isolates into 24 distinct genotypes, with the largest cluster (genotype E) accounting for 10/63 (15.9%) of the isolates. ERIC2 RAPD PCR proved to be a highly discriminatory molecular typing tool of P. aeruginosa in isolates recovered from horses. With the adoption of several controls to aid reproducibility, this technique may be useful as an alternative to PFGE, particularly in epidemiological investigations of outbreaks where speed may be a significant parameter. This is the first report of clonal heterogeneity amongst P. aeruginosa from horses and demonstrated that ERIC RAPD PCR is a rapid method for the examination of this species in horses, which may be useful in outbreak analysis.  相似文献   

Prevalence of Salmonella spp. on Canadian pig farms using liquid or dry-feeding     

Farzan A  Friendship RM  Dewey CE  Warriner K  Poppe C  Klotins K 《Preventive veterinary medicine》2006,73(4):241-254

The objective of this study was to determine whether the shedding and antibody titre to Salmonella was lower for pig herds provided liquid-feed compared to those on traditional dry rations. Twenty liquid-feeding farms and 61 dry-feeding farms were selected. The amount of antibodies to Salmonella in sera from 15 finisher pigs on each of 80 Ontario swine farms was analyzed by means of enzyme-linked immunosorbent assay (ELISA). In addition, the presence of Salmonella on the 20 liquid-feeding farms and 21 of the dry-feeding farms was assessed by culture of 15 fecal samples taken directly from finisher pigs and five pooled pen-fecal samples at each farm.

A cut-off of OD% 10 was used. The Salmonella sero-prevalence differed between the two groups of farms. At least one pig tested sero-positive on 98% of the dry-feeding farms and 84% of the liquid-feeding farms (P < 0.05). A multi-variable mixed linear regression model with the farm as a random variable and farm factors as the fixed effects was fitted. Crude optical density (OD) of the individual pig was considered as the continuous dependent variable. Dry-feeding and antimicrobial daily usage was associated with crude OD (P < 0.05). In addition, crude OD increased with increasing herd size (P < 0.05).

Salmonella was isolated from 25 out of 420 fecal samples (6%) from dry-feeding farms compared to three out of 400 samples (0.8%) from liquid-feeding farms. Eight of the dry-feeding farms (38%) tested positive compared to only three of the liquid-feeding farms (15%). Salmonella was also recovered from the pen environment on five dry-feeding farms but were not isolated from the facilities using liquid-feeding. Salmonella Typhimurium was isolated from four farms in the dry-feed group and on one farm with liquid-feeding. The one S. Typhimurium isolate from the liquid-feeding farm exhibited no antimicrobial resistance, but those from dry-feeding farms were resistant to four or more antimicrobial agents. The results of the logistic regression, with farm as a random effect showed that dry-feeding [OR = 2.7 (1.1–15.1)] and continuous flow system [OR = 2.3 (1.2–12.7)] increased risk of finding Salmonella in the individual pig.

These findings indicate that liquid-feeding and all-in all-out management of the grower–finisher barns can reduce the Salmonella prevalence.  相似文献   

Bioenergetic relations in submerged aquatic vegetation: an experimental test of prey use by juvenile bluegills     

W. B. Richardson  S. J. Zigler  M. R. Dewey 《Ecology of Freshwater Fish》1998,7(1):1-12

Abstract— We experimentally tested the hypotheses that bluegills in vegetated habitats grow more rapidly than in nonvegetated habitats because (1) vegetated habitats contain a greater caloric density and (2) are less susceptible to energetic depletion. The 10-week experiment was conducted in enclosures containing factorial combinations of the presence or absence of Vallisneria americana and juvenile bluegills Lepomis macrochirus . After 6 weeks, Vallisneria -only treatments contained a mean of 1048 cal/m² in the benthos, whereas treatments with both Vallisneria and bluegills contained 610 cal/m². Hyalella azteca , a preferred prey of bluegill, were nearly depleted in nonvegetated enclosures, whereas Hyalella densities in enclosures with Vallisneria were much less effected by fish. Bluegill growth was significantly greater with Vallisneria than without but declining water temperatures after week 6 resulted in slower growth despite abundant prey. Ultimately, growth of bluegill resulted from an interaction between availability and ingestion of prey, and water temperature.  相似文献