Repositório RCAAP

Leucoencefalomalécia eqüina: relato de 5 casos

Relatam-se 5 casos de leucoencefalomalécia em equinos associados com a ingestão de milho mofado, ocorridos durante o inverno de 1990, provenientes de 3 propriedades no Estado de São Paulo, nos municípios de Poá, Pirassununga e Santana do Parnaíba. Os animais apresentaram sinais clínicos semelhantes como ataxia, cegueira, disfagia, andar em círculos e convulsões. Ao exame necroscópico, os cérebros encontravam-se congestos, revelando ao corte áreas de cavitação ao nível da substancia branca sub-cortical. O exame histopatológico exibiu lesões ao nível de substancia branca, caracterizadas por necrose de liquefação, hemorragias focais e infiltrados celulares nos espaços de Virchow-Robin, compostos predominantemente porpolimorfonucleares (eosinófilos e neutrófilos), associados a mononucleares. Análises microbiológicas demonstram que Fusarium moniliforme foi o fungo mais freqüente (1.9 x 10 6 UFC/g de alimento).

Ano

2022-12-06T14:04:43Z

Creators

Xavier, José Guilherme Brunner, Carlos Henrique Maciel Sakamoto, Monica Corrêa, Benedito Fernandes, Wilson Roberto Dias, José Luiz Catão

Heart implantation in subcutaneous tissue of isogenic mice. Study of an experimental model

An experimental model of heart implantation in mice was studied, in accordance to the feasibility, post-surgical kinetics by histopathology and practical application. Isogenic animals from BALB/c and C57BL/10 strains were used, supplied by the Animal House of the Department of Parasitology, Microbiology and Imnunology of FMRP-USP. The experimental protocols were performed according to the operatory steps of the implantation of hearts extracted from just-born donors to the subcutaneous space of the dorsal face of the ear of adult singeneic and non singeneic receptors. Obtained results showed, basically, good feasibility and success in singeneic implantation. For non singeneics, there was sistematic rejection. The analysis altogether of the studied parameters allows to foresee the great utility of the model and the subsides that will bring to further studies in the field of alotransplantation.

Ano

2022-12-06T14:04:43Z

Creators

Laus, José Luiz Santos, Ricardo Ribeiro Rossi, Marco Antonio Rossi, Maria Meira Oliveira

Type of spawning and fecundity of Moenkhausia intermedia (Eigenmann, 1908), in Ibitinga reservoir, São Paulo State, Brazil

This paper describes the fecundity and type of spawning of Moenkhausia intermedia in Ibitinga reservoir, São Paulo State, collected from June 1989 to May 1990. 37 mature females were examined and the average fecundity resulted in 6092 ovocytes. For determination of type of spawning 584 females were used. It was observed that spawning is discontinuous, with annual periodicity and higher, in October and November. Fecundity was related to total length, total weight, body weight and ovary weight. The best correlation was between fecundity and ovary weight.

Ano

2022-12-06T14:04:43Z

Creators

Rodrigues, Arlete Mota Santos, Ricardo Amaro dos Campos, Elmar Cardozo Camara, Jaime José Casari da Mandelli Junior, José

Curvas de maturação gonadal e crescimento de fêmeas de Saguiru prata, (Steindachnerina insculpra Fernandez - Yepez, 1948), capturadas na Represa de Ibitinga, Estado de São Paulo, Brasil

O objetivo deste trabalho foi determinar em que comprimento e idade ocorre a primeira maturação sexual de fêmeas de Saguiru prata Steindachnerinainsculpia, na Represa de Ibitinga (21046'S 48059'W). Os valores encontrados através da curva de maturação, ajustados pela equação de von Bertalanffy, foram: Loo= 143,5 mm e K = 0,381. A primeira maturação sexualdá-se com um comprimento total médio de 97,73 mm, aos 3 anos de idade.

Ano

2022-12-06T14:04:43Z

Creators

Santos, Ricardo Amaro dos Camara, Jaime José Casari da Campos, Elmar Cardozo Mandelli Junior, José

Anátomo histopathologic evaluation of the effect of medroxiprogesterone acetate and megestrol acetate on the uterus of adult bitches

In this trial, 18 adult clinically sound bitches, without clinical symptoms of estrus were utilized, being randomly assigned in 6 groups with 3 animals each. After uterine biopsy for control, medroxiprogesterone acetate was injected into females of the group I, II and III, and megestrol acetate into females of the group IV, V and VI. It was observed that both drugs were capable in inducing endometritis, but this effect was more discrete in the animals of group IV, V and VI. The occurrence of poliuria, polidipsia, abdominal distention, purulent or bloody vaginal secretion, leucocitosis or anemia was not recorded.

Ano

2022-12-06T14:04:43Z

Creators

Vicente, Wilter Ricardo Russiano Toniollo, Gilson Hélio Sobreira, Lucia Ferreira da Rosa Laus, José Luiz Silva, Valéria Maria Saboya da Moraes, Flávio Ruas de

The effect of formalin solution in footbath associated with floor abrasiveness reduction on clinical aspects of lameness in sows

An experiment was made in order to evaluate the effect of hooves treatment with 10% formalin solution in a footbath plus a reduction in the floor abrasiveness on the clinical aspect of lameness. One hundred and two sows, in 14 boxes with partially slatted floor, were used. The animals, seven in each box, were randomly divided in control (T1) and treatment (T2), where the animals were submitted to 12 passages in a 10% formalin in solution footbath during five weeks. The box floor was visual and manually classified as a very abrasive. Afterwards using an electric sharper the floor of all the boxes was polished and it was then classified as milddy abrasive. The treatment (T2) started after the floor correction. The animals were clinically examined in order to evaluate lameness frequency and severity at the beginning and at the end of the experiment period. The results were compared by qui-square test. It was concluded that with the decrease of the floor abrasiveness there was no improvement of the clinical situation of lameness but it is not worse and that the treatment with 10% formalin solution reduce significantly the lameness.

Ano

2022-12-06T14:04:43Z

Creators

Wentz, Ivo Sobestiansky, Jurij Silveira, Paulo Roberto Souza da Munari, Jorge Luiz Porto Freitas, Alfredo Ribeiro de

Heterosis in preweaning traits in swine

Individual weights at birth (PO), 21 days(P21) and weaning (PD) of 746 piglets, being 201Landrace, 136 Wessex-Saddleback and 409 crossbred were analysed by the least squares method. Estimates of heterosis and weight gains were obtained by a fixed model considering the effects of year and season at birth, litter order, sex and litter sizes, besides paternal and maternal breed effects. The effects were significant and the crossbred piglets were heavier than purebreds. Heterosis estimates were 2.6% for PO, 9.7% for P21 and 13.9% for PD, indicating higher no additive gene effects when the age of piglets increase or their dependence on maternal hability becomes less important. Interactions between maternal and paternal breeds were significant. The results indicate that crossbreeding these two breeds is useful for piglets production.

Ano

2022-12-06T14:04:43Z

Creators

Ferraz, José Bento Sterman Duarte, Francisco Alberto de Moura

Rúmen ciliate protozoa in buffalo (Bubaíus bubalis L.) and zebu cattle (Bos indicus L.) kept in a feedlot

Num experimento de engorda em confinamento, foram utilizados nove bubalinos e nove zebuínos, todos machos castrados, de 18 a 24 meses de idade e peso médio de 340 kg, mantidos em baias individuais, consumindo dieta de 2,0 kg de soja crua moída, 2,0 kg de espigas de milho desintegradas (grão, palha e sabugo) e silagem de sorgo à vontade (controlando-se o consumo diário). Ao final do período de confinamento, todos os animais foram abatidos e o conteúdo ruminal de cada indivíduo foi homogeneizado, sendo colhidas amostras de 30 a 40 ml de liquido ruminal e, desta, retirou-se alíquota de 10 ml em tubo de ensaio com 20ml de formaldeído diluído em água destilada a 1:2,para fixação dos protozoários ciliados. As contagens de protozoários foram feitas em 100 campos e os resultados permitiram as seguintes conclusões: 1) adieta favoreceu maior concentração de protozoários ciliados/ml de liquido ruminal dos zebuínos que no de bubalinos, apesar destes apresentarem maior número de gêneros; 2) os protozoários ciliados digestores de fibra foram detectados em maior quantidade nos zebuínos que nos bubalinos; 3) o gênero Emodinium spp representou mais de 80% do total dos protozoários ciliados identificados nos zebuínos e nos bubalinos.

Ano

2022-12-06T14:04:43Z

Creators

Nogueira Filho, José Carlos Machado Oliveira, Maria Ely Miserochi de Franzolin Neto, Raul Schalch, Edison Velloso, Licio

Use of therapeutic antirabic serum in the production of conjugate for the direct immunofluorescence of rabies

A procedure for the production of antirabies fluorescent antibody conjugate using equine therapeutic hyperimmune serum is described. The IgG fraction is rapid and easily purified and after labelled with the fluorochrome. By this procedure, laboratories without facilities to take up the work of raising antirabic serum can obtain high quality conjugates.

Ano

2022-12-06T14:04:43Z

Creators

Richtzenhain, Leonardo José Ito, Fumio Honma Jerez, José Antonio Mavatari, Ana Rita Yumi Albas, Avelino

Contribution to the study of the spermatic cord in crossbred horses

We have studied 35 pairs of spermatic cords of crossbred horses in order to establish the histological aspects of the following structures: testicular wrappers, arterial and venous vessels, intervascular tissues, as well as the arrangement of its vascular system and the length of the tract of testicular artery contained in it.

Ano

2022-12-06T14:04:43Z

Creators

Santos, André Luiz Quagliatto Mariana, Arani Nanci Bomfim Borelli, Vicente

Occurrence of myocardial bridges in Gir, Guzerá, Nelore and Indubrasil bovines

One hundred hearts of adult Bos indicus, 68 males and 32 females of the Gir, Guzerá, Indubrasil and Nelore breeds were studied, to observe the frequency, width and localization of the myocardial bridges on the coronary arteries. The results permit the following conclusions: 1) myocardial bridges occur in 94.0% of the hearts in nunber between one to seven; 2) the width of the myocardial bridges varied from 0.1 an to 5.7 cm width a mean of 1.33 cm; 3) myocardial bridges occur width more frequency on the left coronary arteries branches (85.38%), than on the following right coronary arteries branches (14.62%).

Ano

2022-12-06T14:04:43Z

Creators

Severino, Renato Souto Bombonato, Pedro Primo

Efeito da administração de oxfendazol, ivermectina e levamisol sobre os exames coproparasitológicos de ovinos

O trabalho foi realizado em nove propriedades do Estado de São Paulo, com o objetivo de verificar o efeito da administraçõo de oxfendazol, ivermectina e levamisol sobre os exames coproparasitólogicos de ovinos. Em cada propriedade foram formados aleatóriamente quatro grupos de ovinos: o primeiro foi medicado com oxfendazol, na dose de 4,5 mg/kg, o segundo com levamisol, na dose de 7,5 mg/kg, o terceiro com ivermectina, na dose de 0,2 mg/kg e o quarto grupo foi o controle, não medicado. Colheitas de fezes foram realizadas no dia da vermifugação e novamente sete dias depois para a realização de exames coproparasitológicos. Após a administraçâo de oxfendazol, levamisol e ivermectina, foi verificada redução estatística significativa nas contagens de ovos por grama de fezes (OPG) em duas, quatro e cinco propriedades, respectivamente, sendo Haemonchus e Tnchostrongylus os parasitas com maior ocorrência no experimento. Os resultados sugerem, na maioria das propriedades, a presença de parasitas com resistência múltipla aos anti-helmínticos testados.

Ano

2022-12-06T14:04:43Z

Creators

Amarante, Alessandro Francisco Talamini Barbosa, Maria Aparecida Oliveira, Marcio Armando Gomes de Carmello, Maria José Padovani, Carlos Roberto

"Paracoccidioidomycosis-infection" Survey in Brazilian Captive primates (Cebus apella)

The aim of this study was to verify the possible occurrence of paracoccidioidomycosis-infection in animals that belong to the Order Primates, once they are phylogenetically closest to the only naturally susceptible host of the disease, the human being. This research was essayed using paracoccidioidin delayed hypersensitivity test in 33 Cebus apella, "weeping-capuchin". Paracoccidioidin positive skin reactions were detected at a rate of 33.33%. The humoral immunological response was detected by complement fixation test in 10% of the performed sera. Histological examinations of the intradermic test biopsies showed the presence of focal or nodular dermatitis deep in the dermis, prevailing the polymorphonuclear neutrophils both at 24 and 48 hours after inoculation, with oedema, congestion, and mild vasculitis. The results obtained in this study indicated that Cebidae are susceptible to natural "paracoccidioidomycosis - infection" and are suitable to be used in epidemiological surveys.

Ano

2022-12-06T14:04:43Z

Creators

Costa, Elizabeth Oliveira da Diniz, Liliam Stephani Munaô Fava Neto, Celeste Arruda, Celina Dagli, Maria Lúcia Zaidan

Mycoplasma pulmonis and Mycoplasma arthritidis in rodents from animal houses

Ratos e camundongos de três biotérios com e um sem barreiras microbianas foram bacteriologicamente estudados quanto à presença de micoplasma, através da perfusão de pulmão com lavado traqueobrônquico e lavado de ouvido. Caracterizou-se a presença destas bactérias pela formação de colônias em "ovo frito", coloração de Dienes, resistência à digitonina, catabolismo da glicose, hidrólise da arginina, redução do tetrazólio e produção de filme e manchas. A identificação das cepas isoladas foi através da inibição de crescimento. No biotério com barreiras microbianas, os micoplasmas não foram detectados. Entretanto, isolou-se Mycoplasma pulmonis e Mycoplasma arthritidis em biotérios sem barreiras. Nas instalações sem barreiras microbianas com amostragem representativa, detectou-se M. pulmonis em 20% dos camundongos Swiss, 14,28% na linhagem C57B1/6J e em 83,78% na amostragem dos ratos. Encontrou-se M. arthritidis em 5,4% dos ratos, através da lavagem de ouvido. Ambas as espécies estavam presentes em 2,7% dos ratos. Os anti-soros utilizados não identificaram uma cepa isolada de hamster. M. pulmonis foi identificado em ratos de um grupo de animais procedentes de outros 2 biotérios. A taxa de infecção por micoplasma não pôde ser estabelecida porque os ratos e camundongos foram especialmente selecionados para a pesquisa de micoplasma devido a sua origem a aspectos clínicos. Os autores sugerem que a pesquisa de micoplasma em animais de laboratório seja freqüente, com amostragem representativa e com a identificação destes microrganismos para o aprimoramento de seu controle.

Ano

2022-12-06T14:04:43Z

Creators

Timenetsky, Jorge Summa, Maria Eugenia Laurito Lucca, Rosália Regina de

Influence of the organic matter on the mycobactericidal activity of five chemical disinfectants used for livestock

Tendo em vista que a maioria dos desinfetantes químicos tem a sua atuação antimicrobiana prejudicada pela presença de matéria orgânica, o objetivo do presente trabalho foi o de investigar, comparativamente, a influência da presença de fezes ou de soro de bovinos sobre a atividade micobactericida de desinfetantes químicos de uso pecuário. Foram ensaiados cinco desinfetantes: A - hipoclorito de sódio; B - combinação de fenóis e cresóis; C - combinação de aldeídos e amorno quaternário; D - iodóforo; E - composto fenólico. A suspensão microbiana foi representada por uma cultura de Mycobactenum fortuitum na concentração de 0,0005% (peso úmido). 0 período de atuação dos desinfetantes foi de 60 minutos, à temperatura de 4 a 8 °C. A interrupção da ação dos desinfetantes foi estabelecida pelo emprego de inativantes. A recuperação dos microrganismos remanescentes foi obtida por cultivo em meio de Lowenstein-Jensen, com quantificação do número de unidades formadoras de colônias (U.F.C.). Os produtos "A", “B" e "C" revelaram possuir atividade micobactericida em presença de matéria orgânica, com percentuais de redução do número de U.F.C. em relação aos controles, superiores a 55,0%. O produto "D" apresentou variabilidade de comportamento frente ao sistema de ensaio adotado. 0 produto "E" mostrou-se destituído de poder micobactericida. A despeito de apresentar percentuais de redução de U.F.C. em relação aos controles, superiores a 90%, o produto "A" teve a sua atividade micobactericida inibida pela matéria orgânica (Teste U de Mann-Whitney: nível de significância de 0,05). 0 produto "B" foi inibido apenas quando a matéria orgânica foi representada por soro bovino. 0 produto "C" não apresentou redução de seu poder micobactericida quando em presença de soro ou fezes.

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2022-12-06T14:04:43Z

Creators

Pinheiro, Sônia Regina Vasconcellos, Silvio Arruda Ito, Fumio Honma Ferreira Neto, José Soares Morais, Zenaide Maria de

Use of white rat as an alternative biological system for the study of rabies virus

The response of white rats (Rattus norvegicus) and mice (Mus musculus) to 8 field isolates of rabies virus was assessed in 441 white Wistar strain rats and in the same number of albino mice of both sexes, aged between 19 - 31 days and randomly divided into 24 groups of 8 - 10 animals each. The 20% (w/v) bovine and canine rabid brain suspensions were inoculated intracerebrally using 0.05 ml and 0.03 ml, respectively for a single rat and mouse dose. The animals were observed daily for rabies signs and symptoms and deaths for up to 21 days post inoculation and brains of dead animals were submitted to Fluorescent Antibody (FA) examination. For early recognition of Negri bodies, each group had sacrificed one animal daily from the third post inoculation day. The incubation period, the clinical disease and the time needed for the early detection of rabies through the FA testing were statistically not significant at alfa level of 0.05, although in mice the signs and simptoms of rabies were detected several hours earlier than in rats. Both species have revealed a susceptibility of 100% and aerophobia and spasmodic signs, though always detected in mice, were not observed in rats after their manipulation. The use of white rats for isolation and identification of rabies virus is feasible and the authors suggest their use as an alternative species to mice especially for those laboratories that deal with research and diagnosis of rabies.

Ano

2022-12-06T14:04:43Z

Creators

Cortes, Valdson de Angelis Côrtes, José de Angelis

Grahamella legeri sp. n. (Rickettsiales: Bartonellaceae) haemoparasite of Rattus norvegicus (Berkenhout, 1769)

De 106 Rattus norvegicus capturados no Estado do Rio de Janeiro, observou-se que 25,47% estavam parasitados por Grahamella legeri sp. n. na zona rural a prevalência foi de 53,84% e na zona urbana de 16,25%. A riquetsia foi identificada em esfregaços de sangue periférico, corados pelo método Giemsa, sendo analisada morfológica e biologicamente. As tentativas de transmissão do parasito para diferentes espécies de mamíferos, por inoculaçâo de sangue infectado, só tiveram êxito para R. norvegicus; nestes se provocou aumento da parasitemia conseqüente à esplenectomia ou a injeções de dexametasona. Registrou-se a evolução de quadro clínico de anemia induzida pela infecção com G. legeri. Não houve êxito no cultivo da riquetsia em meio de cultura tido como específico para o gênero. Discutiu-se a posição sistemática, concluíndo-se pela impropriedade da denominação de Grahamella muris Leger, 1913, pelo que se propôs o nome Grahamella legeri, em homenagem a André Legér.

Ano

2022-12-06T14:04:43Z

Creators

Freire, Nicolau Haués da Serra Furlong, John

Hepatocellular adenoma and focal nodular hyperplasia of the liver: differential diagnosis in dogs

Among the hepatic lesions routinely foind in veterinary necropsy practice, nodular lesions are the less described. These lesions include both reactive or neoplastic processes and hamartomas. This study was performed in order to differentiate the hepatocellular adenomas (HA) from the hepatic focal nodular hyperplasia (FNH) in dogs. Ten cases of nodular hepatic lesions in dogs were surveyed from the archives of the Department of Pathology of the “Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo". To each case, histochemical and immuiohistochemical methods were applied in order to characterize the lesions, according to histological human predefined criteria. From the results recorded it was possible to diagnose eight cases of FNH and two cases of HA. It was concluded that these techniques can be easily performed and are suitable for the proposed objectives.

Ano

2022-12-06T14:04:43Z

Creators

Xavier, José Guilherme Dagli, Maria Lucia Zaidan Vianna, Maria Regina Malucelli, Benjamin Eurico

Avaliação comparativa nos efeitos de um novo adesivo biológico (Colagel) sobre a resistência tênsil e a cicatrização de anastomoses intestinais

The effects of a new biological adhesive based on a mixture of gelatin-resorcin and formaldehyde (Colagel) for use as an adjuvant in the reinforcement, impermeabilization and healing of intestinal anastomoses were evaluated and compared to those obtained with omentun fixation, the standard procedure used for this purpose. Two ileal anastomoses were performed in each of 12 experimental dogs using an extramucosal technique and single plane sutures. One of the anastomoses in each animal was covered with adhesive and the other with omentun, in random order. The anastomosed intestinal segments were tested for tensile strength and analysed histopathologically 1, 3, 7, 14, 21 and 28 days after surgery. The tensile strength of the anastomoses treated by the two different procedures was statistically identical. Histopathology revealed normal healing evolution for both procedures on days 1, 3 and 7, and greater exudation in the adhesive group on days 14, 21 and 28 after surgery.

Ano

2022-12-06T14:04:43Z

Creators

Laus, José Luiz Morales, Adriana Ferreira, Affonso Luiz Sobreira, Lúcia Ferreira Rosa Vicente, Wilter Ricardo Russiano Toniollo, Gilson Hélio

Diagnosis of canine dirofilariasis, by ELISA test, in the State of São Paulo

The occult dirofilariasis is considered a great diagnostic problem and may be related to: a) pre-patent infections; b) infections caused by worms of one only sex; c) parasites sterility due to the age or induced by drugs action; d) iirmune mediate response. The present study estimated the prevalence of the dirofilariasis in dogs in São Paulo State by means R TM of the ELISA test (CITER Semi-Quant TM Canine Heartworm Antigen Test Kit) as well as it tried to caracterize the cause of the circulating microfilaraemia absence using subsidiary exams. From 244 examined sera, 35 (14.34%) showed to be positive. From these, 20 presented one or more alternations (radiographic/ haematologic/eletrocardiographic), besides the positive ELISA test, which were compatible with dirofilariasis diagnosis. In the 15 animals left, which were assintomatic and seropositive by means of the ELISA test, no pre-patent infection was possible in spite of being to the infection risk for 6 months. Also the parasite sterility in consequence to drugs action was no observed

Ano

2022-12-06T14:04:43Z

Creators

Larson, Maria Helena Matiko Akao Preterote, Margareth Mirandola, Regina Meiko Meiko Sakata