Keratomycosis in a pet rabbit (Oryctolagus cuniculus) treated with topical 1% terbinafine ointment          下载免费PDF全文

Aurélie Bourguet  Alexandre Guyonnet  Elise Donzel  Jacques Guillot  Charly Pignon  Sabine Chahory 《Veterinary ophthalmology》2016,19(6):504-509

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Effects of gossypol from cottonseed cake on the blood profile in sheep     

Antônio Carlos Lopes Câmara  André Menezes do Vale  Cláudio Roberto Scabelo Mattoso  Marília Martins Melo  Benito Soto-Blanco 《Tropical animal health and production》2016,48(5):1037-1042

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Milk traits of lactating cows submitted to feed restriction     

Alexandre Mossate Gabbi  Concepta Margareth McManus  Maira Balbinotti Zanela  Marcelo Tempel Stumpf  Rosângela Silveira Barbosa  Vilmar Fruscalso  André Thaler Neto  Fernando André Schmidt  Vivian Fischer 《Tropical animal health and production》2016,48(1):37-43

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Intake,performance, and carcass characteristics of lambs fed spineless cactus replacing wheat bran     

Sabrina Carla Rodrigues Felix  Ricardo Alexandre Silva Pessoa  Marcelo de Andrade Ferreira  Luciana Felizardo Pereira Soares  Janaina de Lima Silva  Karen Santos Felix de Abreu  Ana Caroline Cerqueira de Melo 《Tropical animal health and production》2016,48(2):465-468

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Plasmatic l‐lactate in pet rabbits: association with morbidity and mortality at 14 days          下载免费PDF全文

Maria Ardiaca  Sara Dias  Andres Montesinos  Cristina Bonvehi  Sara Barrera  Marina Cuesta 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2016,45(1):116-123

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Risk factors associated with sero-positivity to Toxoplasma gondii in captive neotropical felids from Brazil     

Ramos Silva JC  Marvulo MF  Dias RA  Ferreira F  Amaku M  Adania CH  Ferreira Neto JS 《Preventive veterinary medicine》2007,78(3-4):286-295

From September 1995 to February 2001, blood samples were collected from 865 neotropical felids belonging to 8 different species. These animals were housed in 86 institutions located in 78 cities of 20 Brazilian states. Our goal was to identify the risk factors associated with sero-positivity to Toxoplasma gondii in captive neotropical felids from Brazil. All serum samples were tested by the modified agglutination test (MAT), using formalin-fixed whole tachyzoites and mercaptoethanol. For each animal an individual questionnaire was filled with questions about tattoo number, felid species, age, sex, origin, number of animals in the group, introduction of new animals in the group, time in the institution, eating meat previously frozen for a period <7 days in the last 6 months, eating meat of run-over or euthanized animals in the last 6 months, predation of rodents or birds in the last 6 months and presence of domestic cats near the enclosures in the last 6 months. The total sero-prevalence was 55% (95% CI: 52%, 57%). We estimated a prevalence of 46% (95% CI: 40%, 54%) for jaguarundi (Puma yagouaroundi); 58% (95% CI: 53%, 63%) for ocelot (Leopardus pardalis); 50% (95% CI: 45%, 56%) for oncilla (L. tigrinus); 54% (95% CI: 46%, 62%) for margay (L. wiedii); 12% (95% CI: 4%, 31%) for Pampas-cat (L. colocolo); 83% (95% CI: 65%, 93%) for Geoffroy's-cat (L. geoffroyi); 64% (95% CI: 50%, 68%) for jaguar (Panthera onca) and 48% (95% CI: 42%, 54%) for puma (Puma concolor). Multiple logistic regression was used to evaluate the association between the variables in the questionnaire and sero-positivity to T. gondii. We concluded that the independent risk factors for toxoplasmosis were: age >3 years (OR = 4.75 [2.75; 8.2]), eating meat previously frozen for a period <7 days (OR = 2.23 [1.24; 4.01]), and consumption of animals that were run-over or euthanized (OR = 1.64; [1.14; 2.37]).  相似文献   

Secreted phosphatase activities in trypanosomatid parasites of plants modulated by platelet-activating factor     

Dutra PM  Dias FA  Santos MA  Rodrigues CO  Romeiro A  Attias M  De Souza W  Lopes AH  Meyer-Fernandes JR 《Phytopathology》2001,91(4):408-414

ABSTRACT The secreted phosphatase activities of two trypanosomatid parasites were characterized and compared with supernatants of living cells. The plant parasite Phytomonas fran?ai and the phytophagous hemipteran parasite Herpetomonas sp. hydrolyzed p-nitrophenylphosphate at a rate of 15.54 and 6.51 nmol Pi/mg of protein per min, respectively. Sodium orthovanadate (N(a)VO(3)) and sodium fluoride (NaF) decreased the phosphatase activities. The phosphatase activity of P. fran?ai was drastically diminished (73% inhibition) in the presence of sodium tartrate, whereas the phosphatase activity of Herpetomonas sp. was inhibited by 23%. Cytochemical analysis showed the localization of these enzymes on the external surface and in the flagellar pocket of the two trypanosomatids. Sodium tartrate inhibited this reaction, confirming the biochemical data. Platelet-activating factor modulated the phosphatase activities, inhibiting P. fran?ai activity and stimulating Herpetomonas sp. phosphatase activity.  相似文献   

Epiphytic life is the main characteristic of the life cycle ofPseudomonas syringae pv.pisi,pea bacterial blight agent     

Catherine Grondeau  Alexandre Mabiala  Rachid Ait-Oumeziane  Régine Samson 《European journal of plant pathology / European Foundation for Plant Pathology》1996,102(4):353-363

Pseudomonas syringae pv.pisi, pea bacterial blight agent, is seed-transmitted. Some aspects of its life cycle and its biology were investigated. The colonization of pea plants obtained from naturally infected seeds was studied in natural conditions while high populations of bacteria developed on plants showing no symptoms. Two streptomycin-resistant mutants were used to study the epiphytic life of the pathogen. Populations were monitored in different host-parasite compatibilities. When race 2 or race 6 of the pathogen was surface-inoculated on susceptible cultivars, a decrease of population size was observed during the following one to three days but was followed by an increase to levels 1000 times greater than the initial number detected, without symptoms for most of the plants. When race 2 was surface-inoculated on resistant genotypes or race 6 on non-host plants, bacteria did not multiply but population levels slightly decreased.Pseudomonas syringae pv.pisi shows a resident phase and its development is race-specific. Weeds collected in naturally contaminated pea fields, diseased or not, often harboured the pathogen but with levels smaller than those observed on peas. Pea crop debris and volunteers kept high levels of bacteria for at least eight months after the harvest of a diseased crop. As long as two pea crops are not grown one after the other in the same field, it is unlikely that debris and volunteers will act as an important inoculum source. The development of this pathogen during the growing season is considered as an important parameter to take into account for controlling the disease through seed health testing.  相似文献   

Some observations on the morphology of the pigeon's seminiferous epithelium cells     

A M Orsi  M C Mercadante  E Dias  S Mello Dias  C A Vicentini 《Anatomia, histologia, embryologia》1984,13(4):327-332

A light microscopic examination of the seminiferous epithelium of the pigeon was carried out. Comparisons are made between the spermiogenic stages of the pigeon and that of the domestic fowl and mammals.  相似文献   

A follow-up of Beagle dogs intradermally infected with Leishmania chagasi in the presence or absence of sand fly saliva     

Paranhos-Silva M  Oliveira GG  Reis EA  de Menezes RM  Fernandes O  Sherlock I  Gomes RB  Pontes-de-Carvalho LC  dos-Santos WL 《Veterinary parasitology》2003,114(2):97-111

In this study, we compare the development of infection and/or disease in Beagle dogs intradermally infected with Leishmania chagasi, in the presence or absence of Lutzomyia longipalpis saliva, with those of intravenously infected animals.Spleen samples of all the animals inoculated with parasites had positive polymerase chain reaction tests for Leishmania DNA. Positive spleen cultures for Leishmania were detected earlier (P < or = 0.018) and were more frequent (five out of the five animals) in intravenously infected animals than in the intradermally infected animals, in presence (two out of the six animals) or absence (three out of the five animals) of salivary gland lysate of L. longipalpis. Significant increase in serum antibodies against Leishmania was observed only in the intravenously infected group (P = 0.004). In addition, dogs with infection confirmed by isolation of amastigotes or detection of parasite DNA were, nevertheless, negative for anti-Leishmania antibodies up to 5 months or more after infection. Only animals of the intravenously infected group developed progressive decreases in hematocrit (Pearson r = -0.8076, P = -0.0026) and hemoglobin (Pearson r = -0.8403, P = 0.0012) during the infection period. No significant difference in the course of infection was observed between groups of intradermally infected animals. The data presented herein confirms that the intradermal inoculation of dogs with Leishmania produces an asymptomatic form of infection. It also fails to show an advantage in using L. longipalpis saliva as an infection-enhancing agent in experimental canine leishmaniasis.  相似文献