Glossina in Brazzaville. III. Vector role in animal and human trypanosomiasis     

F Noireau  A Toudic  J P Gouteux  N Bissadidi  J L Frézil  J P Duteurtre 《Revue d'élevage et de médecine vétérinaire des pays tropicaux》1987,40(1):67-69

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Rapid determination of hypophyseal luteinizing hormone in native urine]     

A A Grigor'ev  M Iu Grigorév  V M Pavliuchenko 《Veterinariia》1976,(1):77-79

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Relation between the rearing intensity of male breeding calves and subsequent qualification for insemination     

W Romanowski  H Marré  H Osmers  J Pfeilsticker  R Dehning 《DTW. Deutsche tier?rztliche Wochenschrift》1983,90(10):409-414

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Effect of clear-felling on runoff in two small watersheds in Central Sweden     

K. Rosén 《Forest Ecology and Management》1984,9(4):267-281

Small watersheds were used in a study of the effect of clear-felling on runoff from coniferous forest areas in Central Sweden. After a 3-year calibration period, two watersheds were clear-felled (on one of them the slash was left and on the other slash was removed) and a third was left as a reference.Runoff under forested conditions was 271 and 246 mm year^?1, respectively for the treated watersheds, while the precipitation measured 732 mm year^?1 as a mean for the investigated period. Clear-felling resulted in an increase in runoff of 119 and 75% (371 and 215 mm per year), respectively. The increase occurred during the period of snowmelt (April–May) and the period without snow (June–October). During winter (November–March) a very small increase in runoff was noted. The effect of clear-felling on runoff appears to be greater than has been reported from most other Scandinavian investigations.The increase in runoff during snowmelt is probably due to an increased snow accumulation in the clear-felled area as compared to the forest. The increased runoff for the period without snow is explained by reduced transpiration from the vegetation and reduced evaporation caused by an increased aerodynamic resistance.No effects of slash removal could be detected, probably because of the natural variation between the two treated watersheds.  相似文献   

Alterations of the ruminal mucosa and its relation to the hepatic abscesses in bulls fed high energy and low fibre diets.     

G Szemerédy  R Raul 《Acta veterinaria Academiae Scientiarum Hungaricae》1976,26(3):313-324

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Epidemiology of heartwater in Guadeloupe and in the Caribbean   总被引：4，自引：0，他引：4  

E Camus  N Barré 《The Onderstepoort journal of veterinary research》1987,54(3):419-426

At present, heartwater in the Caribbean is known with certainty only on Guadeloupe, Marie Galante and Antigua; the first 2 islands are widely infected. The most important factors responsible for particular aspects of heartwater in Guadeloupe are: Cowdria ruminantium of high virulence. A very resistant cattle population (Creole), not normally clinically affected. A fairly susceptible goat population (Creole) (22% goats born in endemic areas die after experimental inoculation) which, fortunately, includes breeding lines with inherited resistance characteristics. Amblyomma variegatum which is present all over the island and all through the year, but with a low infection rate (1-2% of adult ticks are infected) because of the short period of rickettsemia in infected animals. The low rate of tick infection results in a low endemicity of the disease. For goats, the epidemiologic situation can be regarded as unstable because the low rate of infection in ticks does not allow a natural immunization of the majority of young kids when they still have a non-specific resistance. The possible evolution of heartwater in the Caribbean and in the United States in considered.  相似文献   

Development and structure of the shell membrane and the chorioallantoic membrane of the goose     

G Fehér  T Fáncsi  L Várnagy 《Anatomia, histologia, embryologia》1987,16(4):298-305

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Preliminary trials of embryo transfers in Baoulé cattle in Burkina Faso     

M Bianchi  P Chicoteau  C Cloé  A Bassinga 《Revue d'élevage et de médecine vétérinaire des pays tropicaux》1986,39(1):139-144

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Survey of vomitoxin-contaminated feed grains in midwestern United States, and associated health problems in swine   总被引：5，自引：0，他引：5  

L M C?té  J D Reynolds  R F Vesonder  W B Buck  S P Swanson  R T Coffey  D C Brown 《Journal of the American Veterinary Medical Association》1984,184(2):189-192

During the 1981 corn harvest season in Illinois and surrounding states, cold wet weather enhanced the growth of Fusarium graminearum, with resulting contamination by vomitoxin and, to a lesser extent, zearalenone. Of 342 feed samples analyzed, 274 contained vomitoxin at a concentration ranging from 0.1 to 41.6 ppm (mean, 3.1 ppm) and 40 samples contained zearalenone at a concentration ranging from 0.1 to 8 ppm (mean, 0.66 ppm). Animal health problems and reduced growth performance were observed mainly in swine fed vomitoxin-contaminated rations. The predominant clinical complaints, in decreasing frequency were: reproductive problems (50%), feed refusal (43%), reduced weight gain (25%), diarrhea (17%), death (14%), and emesis (11%).  相似文献   

An ELISA with Brucella lipopolysaccharide antigen for the diagnosis of B. melitensis infection in sheep and for the evaluation of serological responses following subcutaneous or conjunctival B. melitensis strain Rev 1 vaccination.     

M P Jiménez de Bagüés  C M Marín  J M Blasco  I Moriyón  C Gamazo 《Veterinary microbiology》1992,30(2-3):233-241

An indirect enzyme-linked immunosorbent assay (ELISA) with unpurified Brucella melitensis smooth lipopolysaccharide (S-LPS) as antigen was evaluated for the serological diagnosis of B. melitensis infection in sheep in comparison with the Rose Bengal (RB), complement fixation (CF), radial immunodiffusion (RID), microplate agglutination (MA) and rivanol agglutination (RIV) tests. Tests RB and CF detected as positive each of the 77 sera from B. melitensis-infected animals tested, the RID (74), MA (76) and the RIV (72) were less sensitive. However, all tests compared were negative when 77 sera from Brucella-free rams were tested. While subcutaneous Rev 1 vaccination induced high response levels in any of the tests, low level responses were obtained upon conjunctival vaccination, particularly in ELISA and RID tests.  相似文献