PESQUISA VETERINÁRIA BRASILEIRA

Abstract in English:

ABSTRACT.- Queiroz P.V.S. Moura C.E.B., Lucena J.A., Oliveira, M.F. & Albuquerque J.F.G. 2011. [Cranial and caudal mesenteric arteries in rock cavy Kerodon rupestris (Wied, 1820).] Artérias mesentéricas cranial e caudal em mocós Kerodon rupestris (Wied, 1820). Pesquisa Veterinária Brasileira 31(7):623-626. Departamento Ciência Animal, Universidade Federal Rural do Semi-Árido, Bairro Presidente Costa e Silva, Mossoró, RN 59625-900, Brazil. E-mail: moacir@ufersa.edu.br In this study about the origin and ramification of the cranial (CrMA) and caudal (CaMA) mesenteric collateral arteries of the rock cavy, 20 animals (18 males and 2 females) of different ages, originated from the Wild Animals Multiplication Center of the Universidade Federal Rural do Semi-Árido (Cemas/Ufersa), were used. After the natural death, the walls of the abdominal cavity of the animals, in the left antimere, were dissected to cannulate to the aorta in pre-diaphragmatic path. Then they were fixed in 10% formaline and conditioned in order to study their anatomy. The results showed that in 18 animals (90%) the CrMA arose, separately, of the abdominal aorta, soon after the celiac artery (CA), originating, by this time, the middle colic (MCo), caudal pancreaticduodenal (CPD), duodenojejune (DJ), jejune (J) and ileocecocolic (ICeCo) trunk from which derives the ileocecal (ICe) and the right colic (RCo) arteries. In one rock cavy (5%), the CrMA and CA originate from abdominal aorta in a common trunk. In this case the CrMA originated the CPD, MCo, ICeCo, and J. In one observation (5%) CrMA and CaMA appear in common trunk. In this animal, CPD, DJ, ICeCo, MCo and J arteries were originated of the CrMA, while the left colic (LCo) and rectal cranial (RCr) arteries were originated of the CaMA. Regarding the CaMA, in 20 cases (100,00%) it originates the LCo and the rectal cranial arteries.

• Mesenteric arteries rock cavy Kerodon rupestris artérias mesentéricas mocós

Abstract in Portuguese:

RESUMO.- Queiroz P.V.S. Moura C.E.B., Lucena J.A., Oliveira, M.F. & Albuquerque J.F.G. 2011. [Cranial and caudal mesenteric arteries in rock cavy Kerodon rupestris (Wied, 1820).] Artérias mesentéricas cranial e caudal em mocós Kerodon rupestris (Wied, 1820). Pesquisa Veterinária Brasileira 31(7):623-626. Departamento Ciência Animal, Universidade Federal Rural do Semi-Árido, Bairro Presidente Costa e Silva, Mossoró, RN 59625-900, Brazil. E-mail: moacir@ufersa.edu.br No estudo sobre a origem e ramificações das artérias mesentéricas cranial (AMCr) e caudal (AMCa) do mocó, foram utilizados 20 animais (18 machos e 2 fêmeas) de diferentes idades, que, após morte natural, foram dissecados rebatendo-se as paredes torácica e abdominal, pelo antímero esquerdo, expondo-se a aorta que foi então canulada em seu trajeto pré-diafragmático, procedendo-se a injeção de neoprene látex corado, no sentido caudal. A seguir, foram fixados em solução aquosa de formol a 10%, durante 48 horas, e posteriormente dissecados. Os resultados mostraram que em 18 animais (90%), a AMCr originou-se da aorta abdominal isoladamente, logo após a artéria celíaca, emitindo as artérias cólica média (CoM), pancreaticoduodenal caudal (PDC), duodenojejunal (DJ), jejunal (J) e ileocecocólica (ICeCo). Em um mocó (5%), as AMCr e AC se originaram da aorta abdominal em um tronco comum. Neste caso, a AMCr originou às artérias CoM, PDC, ICeCo e J. Em uma observação (5%), as artérias AMCr e AMCa surgiram em tronco comum. Neste animal, as artérias PDC, DJ, ICeCo, CoM e J foram originadas da AMCr, enquanto as aterias cólica esquerda (CoE) e retal cranial (ARCr) derivaram da AMCa. Dois animais (10%) apresentaram como colaterais da AMCr as artérias CoM, PDC, DJ, J e o tronco ICeCo, que originou às artérias CoD e ileocecal (ICe). No que diz respeito a AMCa, nos 20 casos (100%) originou as artérias CoE e RCr.

Abstract in English:

ABSTRACT.- Ribeiro R.R., Silva M.E., Silva S.M., Fulgêncio G.O., Pena H.F.J., Frézard F., Michalick M.S.M. & Gennari S.M. 2011. Occurrence of anti-Neospora caninum and anti-Toxoplasma gondii antibodies in dogs with visceral leishmaniasis. Pesquisa Veterinária Brasileira 31(6):527-532. Centro de Ciências Agrárias Ambientais e Biológicas, Universidade Federal do Recôncavo da Bahia, Campus Universitário Cruz das Almas s/n, Cruz das Almas, BA 44380-000, Brazil. E-mail: raul@ufrb.edu.br Uninfected dogs and those naturally infected with Leishmania chagasi exhibiting different clinical forms of disease were evaluated for the presence of anti-Neospora caninum and anti-Toxoplasma gondii antibodies. Blood samples were collected from 110 mongrel dogs. Sera were tested using the indirect fluorescent antibody test (IFAT), and the animals with visceral leishmaniasis (VL) (n=60) were classified clinically. Out of the 110 sera investigated, 5 (4.5%) were positive for N. caninum (IFAT³50) and 36 (32.7%) for T. gondii (IFAT³16). Anti-L. chagasi antibody titers in asymptomatic dogs (n=10) were found to be significantly lower (P<0.05) than those in oligosymptomatic ones (n=22), which were in turn significantly lower (P<0.05) than those in symptomatic ones (n=28). No association between Leishmania and N. caninum infections was observed. Among dogs infected with L. chagasi, a tendency (P=0.053) towards an association between the infection with T. gondii and the appearance of VL symptoms was observed, suggesting that the clinical manifestation of VL in dogs may enhance their susceptibility to T. gondii. The possible influence of the immunosuppressive status of canine leishmaniasis in the different clinical forms of the disease is discussed.

• Leishmaniasis Leishmania chagasi Toxoplasma gondii Neospora caninum leishmaniose visceral

Abstract in Portuguese:

RESUMO.- Ribeiro R.R., Silva M.E., Silva S.M., Fulgêncio G.O., Pena H.F.J., Frézard F., Michalick M.S.M. & Gennari S.M. 2011. Occurrence of anti-Neospora caninum and anti-Toxoplasma gondii antibodies in dogs with visceral leishmaniasis. [Ocorrência de anticorpos anti-Neospora caninum e anti-Toxoplasma gondii em cães com leishmaniose visceral.] Pesquisa Veterinária Brasileira 31(6):527-532. Centro de Ciências Agrárias Ambientais e Biológicas, Universidade Federal do Recôncavo da Bahia, Campus Universitário Cruz das Almas s/n, Cruz das Almas, BA 44380-000, Brazil. E-mail: raul@ufrb.edu.br A presença de anticorpos anti-Neospora caninum e anti-Toxoplasma gondii foi avaliada em cães não infectados e naturalmente infectados com Leishmania chagasi manifestando diferentes formas clínicas da enfermidade. Amostras de sangue foram coletadas de 110 cães sem raça definida. Os soros foram avaliados por meio da reação de imunofluorescência indireta (RIFI) e os animais com leishmaniose visceral (LV) (n=60) foram classificados clinicamente. Dos 110 soros analisados, 5 (4,5%) foram reativos para N. caninum (RIFI³50) e 36 (32,7%) para T. gondii (RIFI³16). Os títulos de anticorpos anti-L. chagasi em cães assintomáticos (n=10) foram significativamente (P<0,05) mais baixos que aqueles verificados em oligossintomáticos (n=22), que por sua vez foram significativamente menores (P<0,05) que em cães sintomáticos (n=28). Não foi observada associação entre infecções por Leishmania e N. caninum. Entre os cães infectados com L. chagasi, verificou-se uma tendência de associação (P=0.053) entre infecção com T. gondii e aparecimento de sinais clínicos da LV, o que sugere que a manifestação clínica da LV em cães pode aumentar sua susceptibilidade ao T. gondii. A provável influência do quadro de imunossupressão em diferentes formas clínicas da leishmaniose canina é abordada.

Abstract in English:

ABSTRACT.- Masuda E.K., Kommers G.D., Rosa F.B., Barros C.S.L., Fighera R.A. & Piazer J.V.M. 2011. [Relationship between lymphopenia and the persistence of alimentary papillomatosis in cattle chronically and spontaneously poisoned by bracken fern (Pteridium aquilinum).] Relação entre a linfopenia e a persistência da papilomatose alimentar em bovinos intoxicados crônica e espontaneamente por samambaia (Pteridium aquilinum). Pesquisa Veterinária Brasileira 31(5):383-388. Laboratório de Patologia Veterinária, Departamento de Patologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Avenida Roraima 1000, Santa Maria, RS 97105-900, Brazil. E-mail:glaukommers@yahoo.com Bovine papillomavirus type-4 (BPV-4) is responsible for the development of papillomas in the upper digestive tract (UDT) of cattle. The necessary steps for the development, growth and regression of papillomas are intimately related with the immunological status of the animal. The consumption of bracken fern (Pteridium aquilinum) has been pointed out as the major factor involved in the persistence of BPV-4 infection of the UDT. The theory involving the relationship between alimentary papillomas and the formation of squamous cell carcinomas (SCCs) suggests the persistence of alimentary papillomatosis through a chronic immunosupressive lymphopenic state induced by bracken fern. The papillomas would serve then as a development site of SCCs through the interaction of BPV-4 oncoproteins and bracken carcinogens. The objective of this study was to evaluate the relationship between lymphopenia and alimentary papillomatosis in spontaneous cases of chronic bracken fern poisoning of cattle. The age, intensity of papillomatosis and the leukon were evaluated of 40 cattle with SCCs of the UDT. Three animals had leukopenia and one had neutrophilia. The mean lymphocyte count (and standart deviation) of mild, moderate and severe papillomatosis was 5,395(±1,696)/mm3, 4,560(±1,561)/mm3 and 5,007(±1,786)/mm3, respectively. There were no statistically significant differences between the intensity of alimentary papillomasis, age and the lymphocyte count. Immunosupression by lymphopenia was a sporadic finding (three cases) in the present study. The results demonstrate that the persistence of alimentary papilomatosis in spontaneous cases of bracken fern-related SCCs of the UDT is not related to lymphopenia and it may be related to other immunological factors.

• Pteridium aquilinum papillomatosis bovine papillomavirus type 4 plant poisoning diseases of cattle Plantas tóxicas papilomatose papilomavírus bovino tipo 4 intoxicação por planta

Abstract in Portuguese:

RESUMO.- Masuda E.K., Kommers G.D., Rosa F.B., Barros C.S.L., Fighera R.A. & Piazer J.V.M. 2011. [Relationship between lymphopenia and the persistence of alimentary papillomatosis in cattle chronically and spontaneously poisoned by bracken fern (Pteridium aquilinum).] Relação entre a linfopenia e a persistência da papilomatose alimentar em bovinos intoxicados crônica e espontaneamente por samambaia (Pteridium aquilinum). Pesquisa Veterinária Brasileira 31(5):383-388. Laboratório de Patologia Veterinária, Departamento de Patologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Avenida Roraima 1000, Santa Maria, RS 97105-900, Brazil. E-mail:glaukommers@yahoo.com Papilomavírus bovino tipo 4 (BPV-4) é responsável pelo desenvolvimento de papilomas no trato alimentar superior (TAS) de bovinos. Os passos necessários para o crescimento, o desenvolvimento e a regressão dos papilomas estão intimamente relacionados com o estado imunológico do animal. A ingestão de samambaia (Pteridium aquilinum) tem sido relacionada como o principal fator envolvido na persistência da infecção pelo BPV-4 no TAS. A teoria que estabelece a relação entre papilomatose alimentar e a formação de CCEs sugere a produção de um estado imunossupressivo crônico pela planta, permitindo a persistência dos papilomas no TAS. Os papilomas serviriam então como sítios de desenvolvimento dos CCEs através da interação entre as proteínas do BPV-4 e os carcinógenos da samambaia. O objetivo deste estudo foi avaliar a relação entre a quantidade de linfócitos circulantes e a papilomatose alimentar em casos de intoxicação espontânea crônica por P. aquilinum em bovinos com CCE no TAS. Quarenta bovinos com CCEs no TAS foram avaliados quanto à idade, à intensidade da papilomatose alimentar no TAS e ao leucograma. Três bovinos tinham leucopenia e um apresentava neutrofilia. A média de linfócitos foi de 5.395 (±1.696) na papilomatose leve, 4.560 (±1.561) na moderada e 5.007 (±1.786) na acentuada. Não houve diferença estatisticamente significativa entre o grau de papilomatose, a idade e a quantidade de linfócitos circulantes. Imunossupressão por linfopenia foi um achado esporádico (três casos) neste estudo. Os resultados indicam que a persistência da papilomatose alimentar em casos espontâneos de intoxicação crônica por samambaia em bovinos não tem relação com a quantidade de linfócitos circulantes e que talvez esteja relacionada a outros fatores imunológicos.

Abstract in English:

ABSTRACT.- Abbas R.Z., Manzoor Z., Munawar S.H., Iqbal Z., Khan M.N., Saleemi M.K., Zia M.A. & Yousaf A. 2011. Anticoccidial activity of hydrochloric acid (HCl) against Eimeria tenella in broiler chickens. Pesquisa Veterinária Brasileira 31(5):425-429. Department of Parasitology, University of Agriculture, Faislabad - 38040, Pakistan. E-mail: raouaf@hotmail.com The present study was planned to evaluate the anticoccidial activity of the different concentrations of the HCl against Eimeria tenella infection in broiler chickens in comparison with the amprolium anticoccidial. For this purpose, a total of 198 chicks were placed 11 per pen with three pens per treatment. The different concentrations of HCl (1000ppm, 2000ppm and 3000ppm) and amproilum (at the dose rate of 125ppm) were given to the experimental groups in drinking water from 10 to 19th days of age. One group was kept as infected non medicated control and one as non infected non medicated control. At the 12th day of age, all the groups were inoculated orally with 75,000 sporulated oocysts except non infected non medicated control. Anticoccidial activity was evaluated on the basis of performance (weight gain, feed conversion ratio) and pathogenic (oocyst score, lesion score and mortality %age) parameters. Among HCl medicated groups, the maximum anticoccidial effect was seen in the group medicated with 1000ppm HCl followed by 2000ppm and 3000ppm HCl medicated groups. Amprolium and 1000ppm HCl were almost equivalent in suppressing the negative performance and pathogenic effects associated with coccidiosis (Eimeria tenella) challenge. In summary, the lower doses of HCl have the potential to be used as alternative to chemotherapeutic drugs for Eimeria tenella control. It is therefore suggested that further studies should be carried out to determine the possible minimum safe levels of HCl with least toxic effects to be used as anticoccidial.

• Coccidiosis Eimeria tenella hydrochloric acid

Abstract in Portuguese:

ABSTRACT.- Abbas R.Z., Manzoor Z., Munawar S.H., Iqbal Z., Khan M.N., Saleemi M.K., Zia M.A. & Yousaf A. 2011. Anticoccidial activity of hydrochloric acid (HCl) against Eimeria tenella in broiler chickens. Pesquisa Veterinária Brasileira 31(5):425-429. Department of Parasitology, University of Agriculture, Faislabad - 38040, Pakistan. E-mail: raouaf@hotmail.com The present study was planned to evaluate the anticoccidial activity of the different concentrations of the HCl against Eimeria tenella infection in broiler chickens in comparison with the amprolium anticoccidial. For this purpose, a total of 198 chicks were placed 11 per pen with three pens per treatment. The different concentrations of HCl (1000ppm, 2000ppm and 3000ppm) and amproilum (at the dose rate of 125ppm) were given to the experimental groups in drinking water from 10 to 19th days of age. One group was kept as infected non medicated control and one as non infected non medicated control. At the 12th day of age, all the groups were inoculated orally with 75,000 sporulated oocysts except non infected non medicated control. Anticoccidial activity was evaluated on the basis of performance (weight gain, feed conversion ratio) and pathogenic (oocyst score, lesion score and mortality %age) parameters. Among HCl medicated groups, the maximum anticoccidial effect was seen in the group medicated with 1000ppm HCl followed by 2000ppm and 3000ppm HCl medicated groups. Amprolium and 1000ppm HCl were almost equivalent in suppressing the negative performance and pathogenic effects associated with coccidiosis (Eimeria tenella) challenge. In summary, the lower doses of HCl have the potential to be used as alternative to chemotherapeutic drugs for Eimeria tenella control. It is therefore suggested that further studies should be carried out to determine the possible minimum safe levels of HCl with least toxic effects to be used as anticoccidial.

Abstract in English:

ABSTRACT.- Caiado J.C.C., Pissinate G.L., Souza V.R.C., Fonseca L.A. & Coelho C.S. 2011. [Influence of physical exercise on serum activities of AST and CK and plasma concentration of lactate in Quarter horses submitted to team roping.] Lactacidemia e concentrações séricas de aspartato aminotransferase e creatinoquinase em equinos da raça Quarto de Milha usados em provas de laço em dupla. Pesquisa Veterinária Brasileira 31(5):452-458. Programa de Mestrado em Ciência Animal. Centro Universitário Vila Velha, Rua Comissário José Dantas de Melo 21, Vila Velha, ES 29102-770, Brazil. E-mail: clarisse.coelho@uvv.br The aim of the present study was to evaluate the effects of high intensity and short duration physical exercise (roping team competition) on plasma lactate and serum AST and CK concentrations in horses during competition at Espírito Santo state, Brazil. Blood samples were obtained from 20 Quarter Horses, or cross-bred, in three moments: (1) at rest, one week before the competition, with the animals being trained, (2) just before the competition, and (3) immediately after the exercise. The samples were sent to Laboratório Clínico do Centro Universitário Vila Velha for analysis. Plasma lactate concentrations were 0.49±0.24mmol/L, 0.93±0.16mmol/L e 9.86±2.09mmol/L, respectively, on the moments rest and immediately before and after the exercise. Serum concentrations of AST were 189.1±43.6 IU/L, 210.2±46.7 IU/L e 173.1±33.5 IU/L, respectively, on the moments rest and immediately before and after the exercise. Finally, serum concentrations of CK were 110.9±35.2 IU/L, 51.8±15.4 IU/L and 88.2±33.5 IU/L, respectively, on the moments rest and immediately before and after the exercise. Results showed that the imposed physical exercise leaded to a significant elevation of plasma lactate and serum CK without alteration on AST. It was possible to conclude that horses were adapted to the level of exercise performed.

• AST CK lactate aspartato aminotransferase creatinoquinase lactato

Abstract in Portuguese:

RESUMO.- Caiado J.C.C., Pissinate G.L., Souza V.R.C., Fonseca L.A. & Coelho C.S. 2011. [Influence of physical exercise on serum activities of AST and CK and plasma concentration of lactate in Quarter horses submitted to team roping.] Lactacidemia e concentrações séricas de aspartato aminotransferase e creatinoquinase em equinos da raça Quarto de Milha usados em provas de laço em dupla. Pesquisa Veterinária Brasileira 31(5):452-458. Programa de Mestrado em Ciência Animal. Centro Universitário Vila Velha, Rua Comissário José Dantas de Melo 21, Vila Velha, ES 29102-770, Brazil. E-mail: clarisse.coelho@uvv.br

Abstract in English:

ABSTRACT.- Santos R.P., Mazzanti A., Beckmann D.V., Berté L., Ripplinger A., Neto D.P. & Baumhardt R. 2011. [Functional recovery in dogs with thoracolumbar intervertebral disk disease without deep pain perception: 37 cases (2002-2010).] Recuperação funcional em cães com doença do disco intervertebral toracolombar sem percepção à dor profunda: 37 casos (2002-2010). Pesquisa Veterinária Brasileira 31(4):345-349. Departamento de Clínica de Pequenos Animais, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Av. Roraima 1000, Camobi, Santa Maria, RS 97105-900, Brazil. E-mail: alexamazza@yahoo.com.br The aim of this study was to evaluate functional recovery in 37 cases with diagnostic of thoracolumbar intervertebral disk disease in dogs without deep pain perception (more than 48 hours) and did not underwent surgical treatment from 2002 to 2010. The following data were obtained: Breed, age, sex, neuroanatomic localization, loss of deep pain perception, duration of clinical signs, functional recovery, deep pain recovery, recurrence and euthanasia or death. A satisfactory functional recovery was observed in 11 dogs (55%), mostly between 30-60 days after the beginning of the clinics signal (six dogs). Two of 11 dogs with satisfactory functional recovery did not recovered deep pain perception. The results showed that dogs with presumptive diagnoses of thoracolumbar intervertebral disk disease with more than 48 hours and that did not underwent surgical treatment are capable of a functional satisfactory recovery and should be waited 30 days after clinical signs begin to establish a prognosis on the recovery of voluntaries movements.

• Intervertebral disk disease paraplegia doença do disco intervertebral paraplegia

Abstract in Portuguese:

RESUMO.- Santos R.P., Mazzanti A., Beckmann D.V., Berté L., Ripplinger A., Neto D.P. & Baumhardt R. 2011. [Functional recovery in dogs with thoracolumbar intervertebral disk disease without deep pain perception: 37 cases (2002-2010).] Recuperação funcional em cães com doença do disco intervertebral toracolombar sem percepção à dor profunda: 37 casos (2002-2010). Pesquisa Veterinária Brasileira 31(4):345-349. Departamento de Clínica de Pequenos Animais, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Av. Roraima 1000, Camobi, Santa Maria, RS 97105-900, Brazil. E-mail: alexamazza@yahoo.com.br O objetivo deste trabalho foi avaliar a recuperação funcional de 37 cães com diagnóstico de doença do disco intervertebral (DDIV) toracolombar, sem percepção da dor profunda superior a 48 horas e não submetidos ao tratamento cirúrgico. Os dados identificados foram: raça, idade, sexo, localização da lesão, perda da percepção da dor profunda, duração dos sinais clínicos, recuperação funcional, retorno da percepção da dor profunda, recidivas, eutanásias ou morte. Foi observada recuperação funcional em 11 cães (55%), sendo seis deles entre 30 e 60 dias após o início dos sinais clínicos. Dos onze cães que tiveram recuperação funcional satisfatória, dois (18%) não tiveram retorno da percepção à dor profunda. Pode-se concluir que cães com diagnóstico de DDIV sem percepção à dor profunda superior a 48 horas e não submetidos ao tratamento cirúrgico podem apresentar recuperação funcional satisfatória e são necessários, no mínimo, 30 dias do início dos sinais clínicos para estabelecer um prognóstico quanto ao retorno dos movimentos voluntários.

Abstract in English:

ABSTRACT.- Costa V.M.M., Rodrigues A.L., Medeiros J.M.A., Labruna M.B., Simões S.V.D. & Riet-Correa F. 2011. [Cattle tick fever in the semiarid region of the Brazilian state of Paraiba.] Tristeza parasitária bovina no Sertão da Paraíba. Pesquisa Veterinária Brasileira 31(3):239-243. Hospital Veterinário, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande, Campus de Patos, 58700-970 Patos, PB, Brazil. E-mail: valery.medeiros@hotmail.com Twenty four outbreaks of cattle tick fever are reported in the semiarid region of Paraiba known as Sertão. Eighteen outbreaks were caused by Anaplasma. marginale, two by Babesia bigemina, and two by mixed infection of A. marginale and Babesia sp. In other two outbreaks of babesiosis the species of Babesia was not identified. Outbreaks occurred from August 2007 to October 2009, however with a concentration of the outbreaks at the end of the rainy period and beginning of the dry period in each year. Twenty two outbreaks affected adult cattle and two affected calves approximately 11 months-old. Three outbreaks affected Bos taurus indicus cattle, of the Nelore and Gir breeds. In 21 outbreaks Holstein, Brown Swiss and crossbred of these breeds with Bos taurus indicus cattle were affected. It is concluded that in the sertão of Paraíba there are areas of enzootic instability for cattle tick fever occurring outbreaks at the end of the rainy season, mainly in hilly areas of the Borborema region, and in wet areas of some river basins, including Rio do Peixe, Rio Piranhas and Rio Espinharas.

• Anaplasmosis babesiosis tick fever Anaplasmose babesiose tristeza parasitária

Abstract in Portuguese:

RESUMO.- Costa V.M.M., Rodrigues A.L., Medeiros J.M.A., Labruna M.B., Simões S.V.D. & Riet-Correa F. 2011. [Cattle tick fever in the semiarid region of the Brazilian state of Paraiba.] Tristeza parasitária bovina no Sertão da Paraíba. Pesquisa Veterinária Brasileira 31(3):239-243. Hospital Veterinário, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande, Campus de Patos, 58700-970 Patos, PB, Brazil. E-mail: valery.medeiros@hotmail.com Descrevem-se 24 surtos de tristeza parasitária bovina no sertão paraibano, sendo 18 de anaplasmose por Anaplasma margimale, dois de babesiose por Babesia bigemina, dois por Babesia não identificada e dois por infecção mista de A. marginale e Babesia sp. Os surtos ocorreram entre agosto de 2007 a outubro de 2009, porém, com uma concentração dos surtos no final do período chuvoso e início do período seco de cada ano, sendo 22 em animais adultos e dois em bezerros de aproximadamente 11 meses. Dois surtos ocorreram em bovinos da raça Nelore, um em animais da raça Gir e os 21 restantes ocorreram em animais das raças Holandês, Pardo Suiço e mestiços das mesmas com zebuínos. Conclui-se que no sertão da Paraíba há áreas de instabilidade enzoótica, ocorrendo surtos de tristeza no final da época de chuvas, principalmente nas áreas de planaltos e serras da região da Borborema e em áreas úmidas como a Bacia do Rio do Peixe, Rio Piranhas e Rio Espinharas em que há a formação de microclimas favoráveis à sobrevivência do carrapato.

Abstract in English:

ABSTRACT.- Snoeck P.P.N., Cruz A.C.B., Catenacci L.S. & Cassano C.R. 2011. [Vaginal cytology of maned sloth (Bradypus torquatus).] Citologia vaginal de preguiça-de-coleira (Bradypus torquatus). Pesquisa Veterinária Brasileira 31(3):271-275. Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz, Km 16, Salobrinho, Ilhéus, BA 45662-900, Brazil. E-mail: paolasnoeck@uesc.br Maned sloths (Bradypus torquatus) are arboreal mammals of the family Bradypodidae. They can be only found in the Atlantic coast forest of Brazil and its most genetically diverse populations occur in forests of southern Bahia. The observation of these animals in the wild is very difficult as they spend most of their lifetime hidden in the dense forest canopy. Data on their reproductive aspects are scarce, and there is none information about their estrous cycle. This research aimed at identifying the vaginal epithelial cells of maned sloths (Bradypus torquatus) as a possible way to study the phases of the estrous cycle of this animal. The samples for vaginal cytology were obtained from four free ranging maned sloths living in a protected area of coastal forest in the South of Bahia. The sterile gynecological brush was inserted up to the necessary distance to reach the pelvic channel. For each sample two smears were made by rotating the tip of the brush onto each glass slide, producing in general three linear impressions. Staining was performed using rapid Panotic Kit (Laborclin R). Maned sloths BT033, BT065, and BT042 presented, respectively, 30%, 33%, and 7% of parabasal epithelial cells (PB); 56%, 22%, and 10% of small intermediate cells (IP); 6%, 18%, and 6% of large intermediate cells (IG); 2%, 13%, and 24% of superficial epithelial cell with a nucleus (SN); 6%, 14%, and 53% of anucleated superficial epithelial cell (AS). Two cell samples were collected for maned sloth BT464 with a 13 months interval. Cytological differences were observed between the two samples (1st and 2nd): 6% and 17,5% of PB cells, 5% and 25% of IP cells, 11% and 15,5% of IG cells, 8% and 19,5% of SN cells and 70% and 22,5% of AS cells, respectively. It’s interesting to remark that the percentage of vaginal epithelial cells varied among sloths and also for the same animal. This result suggests that vaginal cytology of maned sloth can be used as a tool to evaluate of estrous cycle.

• Vaginal epithelial cells maned sloth Bradypus torquatus Bradypodidae Células do epitélio vaginal preguiça-de-coleira

Abstract in Portuguese:

RESUMO.- Snoeck P.P.N., Cruz A.C.B., Catenacci L.S. & Cassano C.R. 2011. [Vaginal cytology of maned sloth (Bradypus torquatus).] Citologia vaginal de preguiça-de-coleira (Bradypus torquatus). Pesquisa Veterinária Brasileira 31(3):271-275. Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz, Km 16, Salobrinho, Ilhéus, BA 45662-900, Brazil. E-mail: paolasnoeck@uesc.br As preguiças-de-coleira (Bradypus torquatus) são mamíferos arborícolas da família Bradypodidae. Podem ser encontradas nos trechos de Mata Atlântica do Brasil e a maior diversidade genética de suas populações ocorre em matas do sul da Bahia. A observação desses animais na natureza é muito difícil, pois passam a maior parte da vida escondidos no denso emaranhado das copas, por isso, dados sobre aspectos reprodutivos são escassos e não existem informações sobre ciclo estral dessa espécie. Este trabalho teve por objetivo identificar as células do epitélio vaginal da preguiça-de-coleira (Bradypus torquatus) como forma de viabilizar o uso dessa técnica para estudar as fases do ciclo estral desses animais. As amostras para citologia vaginal foram obtidas de quatro preguiças de coleira que habitavam áreas de Mata Atlântica do sul da Bahia. Após captura manual do animal, procedeu-se a coleta de material biológico, introduzindo uma escova ginecológica estéril, na comissura dorsal da vulva. Para cada amostra foram feitos dois esfregaços rotacionando a extremidade da escova sobre cada lâmina de vidro, fazendo-se em geral três impressões lineares. O esfregaço foi imediatamente corado pelo método Panótico rápido (LaborclinÒ). Nas preguiças BT033, BT065 e BT042 foi possível identificar respectivamente 30%, 33% e 7% de células parabasais (PB); 56%, 22% e 10% de células intermediárias pequenas (IP); 6%, 18% e 6% de células intermediárias grandes (IG); 2%, 13% e 24% de células superficiais nucleadas (SN); 6%, 14% e 53% de células superficiais anucleadas (SA). Na preguiça BT464 foi possível fazer duas coletas com intervalo de 13 meses. Os dados da primeira e segunda coleta foram, respectivamente: 6% e 17,5 de células PB, 5% e 25% de células IP, 11% e 15,5% de células IG, 8% e 19,5% de células SN e 70% e 22,5% de células SA. Enfatiza-se que as porcentagens de células do epitélio vaginal variaram entre indivíduos e também na mesma preguiça. Isto sugere que a citologia vaginal possa ser uma ferramenta de avaliação do ciclo estral em preguiça-de-coleira.

Abstract in English:

ABSTRACT.- Abbas R.Z., Munawar S.H., Manzoor Z., Iqbal Z., Khan M.N., Saleemi M.K., Zia M.A. & Yousaf A. 2011. Anticoccidial effects of acetic acid on performance and pathogenic parameters in broiler chickens challenged with Eimeria tenella. Pesquisa Veterinária Brasileira 31(2):99-103. Department of Parasitology, University of Agriculture, Faislabad 38040, Pakistan. E-mail: raouaf@hotmail.com The objective of the present study was to evaluate the anticoccidial effect of the different concentrations of the acetic acid in the broiler chickens in comparison with the amprolium anticoccidial. A total of 198 chicks were placed 11 per pen with three pens per treatment. The different concentrations (1%, 2% and 3%) of acetic acid and amproilum (at the dose rate of 125ppm) were given to the experimental groups in drinking water from 10–19th days of age. One group was kept as infected non medicated control and one as non infected non medicated control. All the groups were inoculated orally with 75,000 sporulated oocysts at the 12th day of age except non infected non medicated control. Anticoccidial effect was evaluated on the basis of performance (weight gain, feed conversion ratio) and pathogenic (oocyst score, lesion score and mortality %age) parameters. Among acetic acid medicated groups, the maximum anticoccidial effect was seen in the group medicated with 3% acetic acid followed by 2% and 1% acetic acid medicated groups. Amprolium and 3% acetic acid were almost equivalent in suppressing the negative performance and pathogenic effects associated with coccidiosis (Eimeria tenella) challenge. In summary, acetic acid has the potential to be used as alternative to chemotherapeutic drugs for Eimeria tenella control. Concentration-dependent anticoccidial effect of acetic acid suggests that further studies should be carried out to determine the possible maximum safe levels of acetic acid with least toxic effects to be used as anticoccidial.

• Coccidiosis Eimeria tenella acetic acid anticoccidial

Abstract in Portuguese:

ABSTRACT.- Abbas R.Z., Munawar S.H., Manzoor Z., Iqbal Z., Khan M.N., Saleemi M.K., Zia M.A. & Yousaf A. 2011. Anticoccidial effects of acetic acid on performance and pathogenic parameters in broiler chickens challenged with Eimeria tenella. Pesquisa Veterinária Brasileira 31(2):99-103. Department of Parasitology, University of Agriculture, Faislabad 38040, Pakistan. E-mail: raouaf@hotmail.com The objective of the present study was to evaluate the anticoccidial effect of the different concentrations of the acetic acid in the broiler chickens in comparison with the amprolium anticoccidial. A total of 198 chicks were placed 11 per pen with three pens per treatment. The different concentrations (1%, 2% and 3%) of acetic acid and amproilum (at the dose rate of 125ppm) were given to the experimental groups in drinking water from 10–19th days of age. One group was kept as infected non medicated control and one as non infected non medicated control. All the groups were inoculated orally with 75,000 sporulated oocysts at the 12th day of age except non infected non medicated control. Anticoccidial effect was evaluated on the basis of performance (weight gain, feed conversion ratio) and pathogenic (oocyst score, lesion score and mortality %age) parameters. Among acetic acid medicated groups, the maximum anticoccidial effect was seen in the group medicated with 3% acetic acid followed by 2% and 1% acetic acid medicated groups. Amprolium and 3% acetic acid were almost equivalent in suppressing the negative performance and pathogenic effects associated with coccidiosis (Eimeria tenella) challenge. In summary, acetic acid has the potential to be used as alternative to chemotherapeutic drugs for Eimeria tenella control. Concentration-dependent anticoccidial effect of acetic acid suggests that further studies should be carried out to determine the possible maximum safe levels of acetic acid with least toxic effects to be used as anticoccidial.

Abstract in English:

ABSTRACT.- Barbosa J.D., Oliveira C.M.C., Albernaz T.T., Silva N.S., Silveira J.A.S., Belo Reis A.S. & Sousa M.G.S. 2011. [Licking dermatitis in cattle in the state of Pará, Brazil.] Dermatite por lambedura em bovinos no estado do Pará. Pesquisa Veterinária Brasileira 31(2):136-138. Central de Diagnóstico Veterinário, Universidade Federal do Pará, Rua Maximino Porpino da Silva 1000, Pirapora, Castanhal, PA 68743-080, Brazil. E-mail: diomedes@ufpa.br A condition of 13 cattle from 10 farms in six districts in the state of Pará, Brazil, characterized by ulcerative skin wounds was studied. The lesions were observed in regions of the body to which the cattle had access with their own tongue; the animals licked the wounds frequently. Epidemiological studies, pathological findings and the differential diagnosis indicate that the dermatitis is caused by licking. The wounds healed after restraining the head of the animals that then were unable to lick themselves.

• Dermatitis dermatite

Abstract in Portuguese:

RESUMO.- Barbosa J.D., Oliveira C.M.C., Albernaz T.T., Silva N.S., Silveira J.A.S., Belo Reis A.S. & Sousa M.G.S. 2011. [Licking dermatitis in cattle in the state of Pará, Brazil.] Dermatite por lambedura em bovinos no estado do Pará. Pesquisa Veterinária Brasileira 31(2):136-138. Central de Diagnóstico Veterinário, Universidade Federal do Pará, Rua Maximino Porpino da Silva 1000, Pirapora, Castanhal, PA 68743-080, Brazil. E-mail: diomedes@ufpa.br Foi estudada uma doença em 13 bovinos de 10 propriedades localizadas em seis municípios do estado do Pará, caracterizada por feridas ulcerativas da pele. A doença foi observada somente em regiões do corpo, aos quais os animais tinham acesso com a própria língua; também foi observado que os animais lambiam as feridas com freqüência. Os estudos epidemiológicos e patológicos desses casos, bem como o descarte dos diagnósticos diferenciais, permitiram concluir que se trata de dermatite por lambedura. Essas feridas sararam após a realização da contenção da cabeça dos animais, que desta maneira ficaram impossibilitados de lamber as mesmas.