Publications

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coagulase gene polymorphism of staphylococcus aureus isolated from goat mastitis in brazilian dairy herds.to investigate the coagulase gene polymorphism of staphylococcus aureus isolated from mastitic goat's milk.200616411916
a serological study on brucella abortus, caprine arthritis-encephalitis virus and leptospira in dairy goats in rio de janeiro, brazil.in spite of the large number of goats found in several developing tropical countries, milk production remains unsatisfactory. the occurrence of infectious diseases, such as leptospirosis, brucellosis and caprine arthritis-encephalitis (cae) may in part be responsible for sub-optimal production. in this study, 1000 serum samples were tested for leptospirosis, 953 for brucellosis and 562 for cae. all tested flocks presented at least one seroreactive animal for leptospirosis and for cae. reactivity ...200716455276
characterization of staphylococcus aureus isolates from buffalo, bovine, ovine, and caprine milk samples collected in rio de janeiro state, brazil.eighty-four staphylococcal isolates were obtained from milk samples from cows, sheep, goats, and buffalo with subclinical mastitis and from colonization samples from ostriches. the animals were hosted in 18 small dairy herds and an ostrich breeding located in 10 municipalities of the state of rio de janeiro, brazil. thirty isolates were identified as staphylococcus aureus by biochemical and molecular techniques and were comparatively characterized by phenotypic and genotypic methods. the molecul ...200717449696
risk factors associated with leptospirosis in dairy goats under tropical conditions in brazil.serum samples from 248 adult dairy goats from 13 flocks with lowered fertility farmed in the rio de janeiro region of brazil were examined for leptospira antibodies by mat with 24 serovars, cut off 100. a questionnaire was completed for each herd. antibodies were detected in 20.8% of these goats, mainly to serovar hardjo. risk factors associated with seroprevalence to leptospirosis were the frequency of professional veterinary supervision (or = 2.35), climate (or = 2.63) and grazing for more tha ...200817543359
identification of leptospira spp. carriers among seroreactive goats and sheep by polymerase chain reaction.few studies were conducted on the diagnosis and control of small ruminants' leptospirosis. thirteen goat herds and seven sheep flocks located in the state of rio de janeiro, brazil, were screened for leptospirosis. from the three herds and three flocks with greatest seroreactivity by mat (microscopic agglutination test), 19 and 40 seropositive goats and sheep, respectively, were selected, and urine samples were collected for bacteriology and pcr. for both species of animals, the most prevalent r ...200919232418
[natural infection with species of the genus eimeria in small ruminant raised in two municipalities of the state rio de janeiro].in order to identify eimerian species, verify their frequencies and intensity of infection, besides the dynamics of environmental contamination by oocysts during two years, fecal samples were collected from alpine goats and their cross-breeding and santa inês sheep, raised separated in mountainous region of the state of rio de janeiro. a centrifuge-flotation method was used to obtain the number of oocysts per gram of feces (oopg). nine species of eimeria were identified in goats and ten in sheep ...200516229752
possible effect of association with cooperatives in the control of caprine arthritis-encephalitis in rio de janeiro, brazil. 201121908550
raillietia caprae (acari: raillietidae) and psoroptes ovis (acari: psoroptidae) in the ears of goats in the state of rio de janeiro, southeast brazil.ear canals of 145 domestic goats including the breeds saanen, toggenburg, anglobian, alpine, moxoto (native) and crossbred goats from 10 smallholder farms were examined by flushing for the presence of ear mites. prevalence of raillietia caprae quintero, bassols and acevedo, 1980 was much more higher than psoroptes ovis (hering, 1838) in the studied area, respectively 62% (90/145) and 4% (6/145). the youngest animal parasitized was eight months old and the oldest was 10 years old. subclinical oti ...200818554445
[development, survival and distribution of infective larvae of ruminants gastrointestinal nematodes, in the dry season of the "fluminense lowland", state of rio de janeiro, brazil].with the objective of studying the development, survival and the distribution of the infective larvae of gastrointestinal nematodes of domestic ruminant, in the period characterized as dry for the area of the fluminense lowland, rj, the artificial contamination of the pasture was accomplished with fecal samples of bovine, caprine and ovine, naturally infected. one week after, began the sampling of the faecal masses and of the grass around the same ones, with biweekly repetitions. larvae of the g ...200516229751
natural infection by giardia sp. and cryptosporidium sp. in dairy goats, associated with possible risk factors of the studied properties.visits were made to six farms raising dairy goats located in the mountain region of the state of rio de janeiro, brazil, seeking to identify parasitism by giardia sp. and cryptosporidium sp. during the visits, fecal samples were collected from approximately 10% of the stock of each property. a questionnaire was given to the keepers on each property to obtain data for epidemiological analysis. a total of 105 fecal samples was collected, 56 from adult animals (over 12 months of age) and 49 from ju ...200516105719
leptospirosis as the most frequent infectious disease impairing productivity in small ruminants in rio de janeiro, brazil.despite the importance of small ruminants breeding in developing countries, milk/meat productivity remains unsatisfactory. infectious diseases, such as leptospirosis, brucellosis, and small ruminant lentiviruses (srlvs), contribute to this scenario. the objective of the present study was to determine the role of each of these diseases in the productivity of small ruminants breeding in rio de janeiro, brazil. in goats, 343 samples were tested for leptospirosis, 560 for brucella abortus, and 506 f ...201121898182
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