PESQUISA VETERINÁRIA BRASILEIRA

Abstract in English:

ABSTRACT.- Gradela A., Nunes A.K.R., Matos M.H.T., Franzo V.S., Faria M.D., Moreira M.B. & Santos J.M. 2013. [Morphologic and morphometric description of the guinea pigs vesicular gland during postnatal development.] Descrição morfológica e morfométrica da glândula vesicular de cobaias durante o desenvolvimento pós-natal. Pesquisa Veterinária Brasileira 33(7):942-948. Colegiado de Medicina Veterinária, Fundação Universidade Federal do Vale do São Francisco, Rodov. 407 Km 12, Lote 543, Projeto Nilo Coelho C1, Petrolina, PE 56300-000, Brazil. E-mail: agradela@hotmail.com Vesicular glands are essential for reproduction since their secretions affect sperm function. Guinea pigs (Cavia porcellus) are an excellent experimental model for studying vesicular glands, but no morphologic and morphometric data during its development are available. In the present study, the morphology (projections of the folds (PF) and epithelial tissue high (EH) of the mucosa) and the morphometry (mass (GM), volume (GV), length (GC), width of the portions cranial (CRW), medium (MW) and caudal (CAW)) of the vesicular glands were determined at 1, 3, 5, 8, and 11-weeks of age in male guinea pigs (n = 5/age group). In addition, body mass (BM), body length (BL) and height (BH) and organo-somatic index (OSI) were also determined and the simple correlation coefficient (r) was established between the variables. The glands were restricted to the pelvic cavity, and had its interior filled with a semi-solid mass and, after S8, they occupied also the abdominal cavity and the contents were increased significantly. The mucous membrane presented variable folding and simple columnar epithelium. BM, BL and BH increased continuously with age. GM, GV, GC and CAW did not change from 1 to 5-weeks of age, but increased at 8-weeks of age; GM, GV and LCA also increased at 11-weeks of age. OSI and PF increased at 8 and 11-weeks of age and EH at 5, 8 and 11-weeks of age. There was significant (r) between age, body and glandular parameters; OSI and GM at 8 and 11-weeks of age; age and PF, age and EH and between PF and EH. In conclusion, the guinea pigs vesicular glands followed morphology observed in rats and hamsters, but differed in some aspects from others histricomorfs, can be used as experimental model and its morphological and morphometric development can be divided into three phases: 1 to 5-weeks of age, when they are discrete; 6 to 8-weeks of age when they are generally sharp and >8-weeks of age, when there is an intense increase of the secretory capacity.

• Cavia porcellus vesicular glands cobaias glândulas vesiculare

Abstract in Portuguese:

RESUMO.- Gradela A., Nunes A.K.R., Matos M.H.T., Franzo V.S., Faria M.D., Moreira M.B. & Santos J.M. 2013. [Morphologic and morphometric description of the guinea pigs vesicular gland during postnatal development.] Descrição morfológica e morfométrica da glândula vesicular de cobaias durante o desenvolvimento pós-natal. Pesquisa Veterinária Brasileira 33(7):942-948. Colegiado de Medicina Veterinária, Fundação Universidade Federal do Vale do São Francisco, Rodov. 407 Km 12, Lote 543, Projeto Nilo Coelho C1, Petrolina, PE 56300-000, Brazil. E-mail: agradela@hotmail.com Glândulas vesiculares são essenciais para a reprodução, pois suas secreções afetam a função espermática. Cobaias (Cavia porcellus) são um excelente modelo experimental para estudo destas glândulas, contudo não existem dados morfológicos e morfométricos durante seu desenvolvimento. Neste estudo a morfologia (projeções das pregas (PP) e altura das células epiteliais (AE) da túnica mucosa) e a morfometria (massa (MG), volume (VG), comprimento (CG), largura das porções cranial (LCR), média (LM) e caudal (LCA)) das glândulas vesiculares foram determinadas em cobaios (N= 25) com uma (S1), três (S3), cinco (S5), oito (S8) e onze (S11) semanas de idade (N=5/grupo de idade). Em adição massa (MC), comprimento (CC) e altura (AC) corporais e o índice organo-somático (IOS) foram também determinados e o coeficiente de correlação (r) estabelecido entre as variáveis. As glândulas restringiam-se a cavidade pélvica e tinham seu interior repleto de uma massa semi-sólida e, após a S8, ocuparam também a cavidade abdominal e tiveram o conteúdo aumentado significativamente. A túnica mucosa era pregueada e forrada de um epitélio simples colunar. MC, CC e AC aumentaram continuamente com a idade. MG, VG, CG e LCA não se alteraram da S1 a S5 e aumentaram na S8; enquanto que MF, VG e LCA também aumentaram na S11. IOS e PP aumentaram na S8 e S11 e AE na S5, S8 e S11. Houve (r) significativo entre a idade, Bc e MFg,; IOS e MG na S8 e S11; idade e PP; idade e AE e entre PP e AE. Em conclusão, as glândulas vesiculares de cobaios seguiram o padrão morfológico observado em ratos e hamsters, mas diferiram em alguns aspectos de outros histricomorfos, podendo ser utilizadas como modelo experimental e seu desenvolvimento morfológico e morfométrico podem ser divididos em três fases: da S1 a S5, quando são discretos; da S6 a S8 de idade, quando são acentuados de maneira geral e após a S8, quando há incremento intenso da capacidade secretória.

Abstract in English:

To determine the teratogenicity of Mimosa tenuiflora, 15 sheep, divided into two groups, were introduced into an area invaded by the plant. Group 1 consisted of six pregnant ewes that were introduced into the experimental area 20 days after mating. Group 2 consisted of nine non pregnant sheep and a ram introduced into the area at the start of the experiment. The experiment began in October 2009, during the dry season, when M. tenuiflora was seeding. During this period the M. tenuiflora plants were pruned to 40cm tall and the branches with leaves and seeds were provided to the experimental sheep in the same area. After prunning M. tenuiflora began to sprout even in the dry season, and the sheep were free to graze the plant. They also received concentrate ration in amount equivalent to 1% of their body weight. After the first rains in mid-January 2010, when the herbaceous layer appeared, the pregnant sheep were confined in stalls, and M. tenuiflora was cut in the field and given to the sheep until the end of the experiment. Every 15 days each sheep was examined by ultrasound to control pregnancy. In Group 1, three sheep aborted single fetuses without malformations. One sheep delivered two lambs, one with hyperflexion of the proximal inter-phalangeal joint of the right forelimb and another without malformations. Another sheep delivered a lamb with a hyperflexion of both hindlimbs in the region of the tarsal-metatarsal joint. Only one sheep delivered a normal lamb. In Group 2, one sheep aborted a fetus without malformations and five delivered normal lambs. Three sheep of this group returned to estrus repeatedly and did not get pregnant during the mating period, suggesting embryonic loss. Thirty two ewes and one ram, that stayed in a paddock neighbor to the experimental paddock and were used as control group, delivered normal lambs. It is concluded that M. tenuiflora cause malformations, embryonic mortality and abortion in sheep.

• Mimosa tenuiflora abortion malformations embryonic death plant poisoning

Abstract in Portuguese:

Para determinar a teratogenicidade de Mimosa tenuiflora, 15 ovelhas, distribuídas em dois grupos, foram introduzidos em área invadida pela planta. O Grupo 1, com seis ovelhas prenhes, foi introduzido na área experimental 20 dias após o acasalamento. O Grupo 2, formado por nove ovelhas não prenhes e um carneiro, foi introduzido na área experimental no início do experimento. O experimento começou no mês de outubro de 2009, período de estiagem, quando M. tenuiflora estava sementando. Nesse período as plantas foram rebaixadas a 40 cm de altura e os galhos com folhas e sementes foram disponibilizados para os ovinos na mesma área onde M. tenuiflora foi rebaixada. M. tenuiflora começou a rebrotar ainda na estação seca antes do período de chuvas. No período de rebrota, as ovelhas ficavam livres para pastar M. tenuiflora e recebiam concentrado em quantidade equivalente a 1% do peso vivo. Após as primeiras chuvas, em meados de janeiro do ano seguinte, quando o estrato herbáceo apareceu, essas ovelhas foram confinadas em baias, onde M. tenuiflora foi fornecida até o fim do experimento. A cada 15 dias eram realizados exames ultrassonográficos para acompanhamento da gestação. No Grupo 1, três ovelhas abortaram, cada uma um feto sem malformações. Outra ovelha pariu dois cordeiros, um com hiperflexão na articulação inter-falangeana proximal no membro torácico direito e outro sem malformações. Outra ovelha pariu um cordeiro com hiperflexão dos dois membros pélvicos na região da articulação tarso-metatársica. No grupo formado pelas ovelhas que foram acasaladas na área experimental, uma ovelha abortou um feto sem malformações e cinco pariram cordeiros normais. Três das ovelhas desse grupo não emprenharam durante todo o período experimental, mostrando retornos repetidos ao cio, sugerindo perda embrionária. Trinta e duas ovelhas e um carneiro, que permaneceram numa área vizinha a área experimental e foram utilizados como controle, pariram cordeiros normais. Conclui-se que M. tenuiflora, além de causar malformações causa, também, mortalidade embrionária e abortos em ovelhas.

• Mimosa tenuiflora aborto malformações mortalidade embrionária plantas tóxicas

Abstract in English:

ABSTRACT.- Santos T.C., Sousa, J.A., Oliveira M.F., Santos J.M., Parizzi R.C. & Miglino M.A. 2011. [Morphology of the male genital organs and cloaca of Rhea americana americana.] Morfologia dos órgãos genitais masculinos e da cloaca da ema (Rhea americana americana). Pesquisa Veterinária Brasileira 31(5):430-440. Departamento de Zootecnia, Universidade Estadual de Maringá, Av. Colombo 5790, Maringá, PR 87020-900, Brazil. E-mail: tcsantos@uem.br The rhea (Rhea americana americana) is a bird that belongs to the group of the Ratitas, order Rheiforme and family Rheidae. Macroscopic and microscopic morphology of the male genital organ (testes, epididymis, deferent ducts, and phallus) and the cloaca were analyzed in 23 emas, four chicken (2 weeks old), young (3 to 10 months old), and twelve adult ones (3 years old), from Cooperativa Emas do Brasil, RS and from CEMAS, Mossoró, RN. The testis of rhea had elongated shape and were located inside coelomatic cavity, in dorsal region of abdominal cavity, with medium length and width of 7.6±1.2cm and 2.6±0.7cm at adult animals; 4.5±1.5cm and 0.9±0.4cm at young animals; and 0.8±0.3cm, and 0.2±0.1cm at chicken. The testis were recovered by the tunica albuginea and its parenchyma had seminiferous tubules composed by spermatogenic epithelium and by sustentation cells, and also interstitial tissue, with interstitial endocrine cells, connective tissue and vessels. At the adult animals were observed all the cells from spermatogenic lineage, whilst at the youngs with 3 months the seminiferous tubules had a smale lumen with spermatogonia and undifferentiated sustentacular cells. The efferents ductus were composed by a cubic ciliated epithelium, while the epididimydis duct had a columnar epithelium. The epididymis was elongated and fusiform closely to medial testis board. The deferent duct had sinuous stretch at adult animals, rectilineae at young animal, convolute at its medium portion, decreasing its sigmoid shape at caudal portion, next to cloaca. The epithelium was pseudostratified ciliated, irregular lumen at adult animal, and circular at young animal, closely with urether. The cloaca was divided into three segments: coprodeum, urodeum and proctodeum. At urodeum the deferent ducts discharged into papillas at the ventral side wall, next to fibrous phallus’s insertion. The phallus was a lymphatic fibrous organ, located at ventral wall, at the cloaca floor, and was composed by two portions: one rigid forked and twisted, and another simple spiraled and flexible, which normally was inverted. In forced exposition, the phallus had 14 cm in length. In a general way the Rhea genital organs shared the morphology from others birds, mainly those described to the ostrich.

• Genital organs ratite testis epididymis deferent duct phallus Rhea americana americana cloaca Órgãos genitais testículo epidídimo ducto deferente falo ema

Abstract in Portuguese:

RESUMO.- Santos T.C., Sousa, J.A., Oliveira M.F., Santos J.M., Parizzi R.C. & Miglino M.A. 2011. [Morphology of the male genital organs and cloaca of Rhea americana americana.] Morfologia dos órgãos genitais masculinos e da cloaca da ema (Rhea americana americana). Pesquisa Veterinária Brasileira 31(5):430-440. Departamento de Zootecnia, Universidade Estadual de Maringá, Av. Colombo 5790, Maringá, PR 87020-900, Brazil. E-mail: tcsantos@uem.br As características morfológicas, macroscópicas e microscópicas, dos órgãos genitais masculinos e da cloaca foram analisados em 23 emas, quatro filhotes (duas semanas), sete jovens (de três a oito meses) e doze adultos (três anos), provenientes da Cooperativa Emas do Brasil, RS, e do CEMAS, Mossoró, RN. Os testículos da ema possuem formato alongado e localizam-se na cavidade celomática, na região intra-abdominal dorsal, com comprimento e larguras médias de 7,6±1,2cm e 2,6± 0,7cm nos adultos; 4,5±1,5cm e 0,9±0,4cm nos jovens; e 0,8±0,3cm, e 0,2±0,1cm nos filhotes. O testículo está envolto pela túnica albugínea e seu parênquima possui túbulos seminíferos irregulares, compostos por epitélio espermatogênico e por células de sustentação, e pelo tecido intersticial, com as células endócrinas intersticiais, tecido conjuntivo frouxo e vasos. Nos adultos observaram-se todas as células da linhagem espermatogênica, enquanto nos jovens com 3 meses, os testículos apresentaram túbulos seminíferos com luz reduzidas, espermatogônias e células de sustentação indiferenciadas. Os ductos eferentes possuem um epitélio cúbico ciliado, enquanto no ducto epididimário o epitélio é columnar. O epidídimo apresentou-se alongado e fusiforme junto a margem medial do testículo. O ducto deferentes apresentou trajeto sinuoso nos adultos, retilíneo nos jovens, convoluto na sua porção média, diminuindo seu formato sigmóide em sua porção caudal, próximo à cloaca. O epitélio é pseudoestratificado e reveste a luz irregular nos adultos e circular nos jovens, mantendo proximidade com o ureter. A cloaca dividiu-se em três segmentos: o coprodeu, o urodeo e o proctodeo. No urodeu os ductos deferentes desembocaram em papilas na parede ventro-lateral, próximo a inserção do falo fibroso. O falo é um órgão fibroso linfático, localizado na parede ventral, no assoalho da cloaca, e apresentou duas porções: uma rígida bifurcada e contorcida, e outra simples espiralada e flexível, a qual normalmente esteve invertida. Em exposição forçada, o falo teve 14 cm de comprimento. De forma geral os órgãos reprodutores das emas compartilharam da morfologia de outras aves, principalmente aquelas descritas para os avestruzes.

Abstract in English:

ABSTRACT.- Ferreira S.R., Murakami A.E., Siqueira T.G.V., Santos J.M.G., Potença A. & Santos T.C. 2009. [Cellular immune response and hematological parameters of broilers from different age broiler breeders, fed with a sorghum meal with different yeast wall levels.] Níveis crescentes de parede de levedura sobre a resposta imune celular e perfil hematológico de frangos de corte. Pesquisa Veterinária Brasileira 29(9):725-730, Universidade Estadual de Maringá, Av. Colombo 5790, Maringá, PR 87020-900, Brazil. E-mail: aemurakami@uem.br An experiment was carried out to evaluate the effect increasing levels of yeast wall and broiler breeders’ age levels on lymphoid organs weight, cellular immune response and hematological parameters in broilers. A total of 3,360 Cobb broilers were allotted, in a completely randomized design and a 2x5 factorial arrangement, and two controls, compound of two broiler breeders age (34 and 57 weeks of age) and five yeast wall levels (zero, one, two, three and four kg of yeast wall/ton of diet). Broiler breeders’ age affected all studied variables. The inclusion of 3kg of yeast wall/ton of meal increased, at 57 weeks age broiler breeders, more intense inflammatory reaction when compared to control diet; however the circulated heterophils and lymphocytes numbers were not increased. In conclusion, the use of yeast wall, associated or not to sorghum on broilers diet still needs complementary studies, for example, purified components of yeast wall (MOS and ß-glucano).

• Yeast wall levedura

Abstract in Portuguese:

RESUMO.- Ferreira S.R., Murakami A.E., Siqueira T.G.V., Santos J.M.G., Potença A. & Santos T.C. 2009. [Cellular immune response and hematological parameters of broilers from different age broiler breeders, fed with a sorghum meal with different yeast wall levels.] Níveis crescentes de parede de levedura sobre a resposta imune celular e perfil hematológico de frangos de corte. Pesquisa Veterinária Brasileira 29(9):725-730, Universidade Estadual de Maringá, Av. Colombo 5790, Maringá, PR 87020-900, Brazil. E-mail: aemurakami@uem.br Um experimento foi conduzido para avaliar o efeito de níveis crescentes de parede de levedura e idade das matrizes reprodutoras sobre o peso dos órgãos linfóides, a resposta imune celular e o perfil hematológico de frangos de corte. Foram utilizados 3.360 pintos de corte da linhagem Cobb, distribuídos em delineamento inteiramente casualisado, em esquema fatorial 2x5, mais dois controles, sendo duas idades de matrizes (34 e 57 semanas de idade) e cinco níveis de suplementação de parede de levedura (zero, um, dois, três e quatro kg de parede de levedura/tonelada de ração). A idade das matrizes influenciou a resposta de todas as variáveis. A inclusão de 3kg de parede de levedura/tonelada de ração promoveu, na progênie de reprodutoras de 57 semanas, reação inflamatória mais intensa quando comparada a dieta controle, no entanto não houve aumento significativo no número de heterófilos e linfócitos circulantes. Conclui-se que a utilização da parede de levedura associada ao sorgo ou não em rações de frangos de corte ainda necessita de estudos complementares, que incluam, por exemplo, os componentes purificados da parede de levedura (MOS e ß-glucano).

Abstract in English:

ABSTRACT.- Santos J.C.A., Riet-Correa F., Simões S.V.D. & Barros C.S.L. 2008. [Pathogenesis, clinical signs and pathology of diseases caused by hepatotoxic plants in ruminants and horses in Brazil.] Patogênese, sinais clínicos e patologia das doenças causadas por plantas hepatotóxicas em ruminantes e eqüinos no Brasil. Pesquisa Veterinária Brasileira 28(1):1-14. Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande, Patos, PB 58700-000, Brazil. E-mail: franklin.riet@pq.cnpq.br Plants causing hepatic lesions in ruminants and horses constitute one important group of poisonous plants in Brazil. These plants can be placed in three major groups: plants causing acute liver necrosis; plants causing liver fibrosis; and plants causing hepatogenous photosensitization. For some of these plants the toxic principles are known. Cestrum parqui and Xanthium cavanillesi that cause acute liver necrosis contain carboxy-atractylosides. Senecio spp., Crotalaria spp., and Echium plantagineum that cause liver fibrosis contain pyrrolizidine alkaloids. As for the group of plants causing hepatogenous photosensibilization, Myoporum spp. contain furanosesquiterpenes, Lantana spp contain triterpenes, and Brachiaria spp. and Panicum spp. contain steroidal saponins. The clinical and pathologic features of the toxicosis caused by these phytotoxins, general mechanisms of production for the production of the clinical signs and the methods for diagnosis of hepatic failure in farm animals are reviewed.

• Hepatotoxic plants liver failure carboxyatractylosides pyrrolizidine alkaloids furanosesquiterpenes triterpenes steroidal saponins

Abstract in Portuguese:

ABSTRACT.- Santos J.C.A., Riet-Correa F., Simões S.V.D. & Barros C.S.L. 2008. [Pathogenesis, clinical signs and pathology of diseases caused by hepatotoxic plants in ruminants and horses in Brazil.] Patogênese, sinais clínicos e patologia das doenças causadas por plantas hepatotóxicas em ruminantes e eqüinos no Brasil. Pesquisa Veterinária Brasileira 28(1):1-14. Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande, Patos, PB 58700-000, Brazil. E-mail: franklin.riet@pq.cnpq.br Plants causing hepatic lesions in ruminants and horses constitute one important group of poisonous plants in Brazil. These plants can be placed in three major groups: plants causing acute liver necrosis; plants causing liver fibrosis; and plants causing hepatogenous photosensitization. For some of these plants the toxic principles are known. Cestrum parqui and Xanthium cavanillesi that cause acute liver necrosis contain carboxy-atractylosides. Senecio spp., Crotalaria spp., and Echium plantagineum that cause liver fibrosis contain pyrrolizidine alkaloids. As for the group of plants causing hepatogenous photosensibilization, Myoporum spp. contain furanosesquiterpenes, Lantana spp contain triterpenes, and Brachiaria spp. and Panicum spp. contain steroidal saponins. The clinical and pathologic features of the toxicosis caused by these phytotoxins, general mechanisms of production for the production of the clinical signs and the methods for diagnosis of hepatic failure in farm animals are reviewed.

Abstract in English:

ABSTRACT.- Parizzi R.C., Miglino M.A., Maia M.O., Souza J.A., Santos J.M., Oliveira M.F. & Santos T.C. 2007. [Morphology of the ovary in rhea (Rhea americana).] Morfologia do ovário da ema (Rhea americana). Pesquisa Veterinária Brasileira 27(3):89-94. Departamento de Cirurgia, Faculdade de Medicina Veterinária e Zootecnia, USP, Av. Prof. Dr. Orlando Marques de Paiva 87, São Paulo, SP 05508-270. E-mail: tcsantos@usp.br The ovarian morphology of the sexually mature rhea (Rhea Americana) is described. Ovaries from 24 adult rheas in their reproductive age were collected in the slaughterhouse. Follicular diameters (n = 18) were measured and samples (n = 6) were fixed in 10% formaldehyde with 0.1M phosphate buffer at pH 7.4 for light microscopy. Results showed that the left ovary occupied the dorsal portion of the celomatic cavity in contact with the cranial portion of the left kidney and the suprarenal gland, being supported in the cavity through the mesovary. On the free surface of the ovary 72.4±17.09 follicles in different phases of development and 30.4±3.65 atretic follicles were observed. The follicles were linked to the ovarian surface by the follicular stalk and had a wide band surrounding its surface, the Stigma folliculare. Histologically, the ovary is constituted by a medulla, composed by connective tissue and vessels, and by a cortex with oocytes and follicles. The follicular wall is composed by the Theca externa and Theca interna, Stratum granulosum and the Zona radiata. The ovary surface is covered by a cubic epithelium, the germinal epithelium, on the connective tissue of the Tunica albuginea. The morphologic characteristics of the ovary of the rhea are due to the egg size in this species and generally similar to other birds.

• Ovary follicle morphology avian anatomy rhea Rhea americana

Abstract in Portuguese:

ABSTRACT.- Parizzi R.C., Miglino M.A., Maia M.O., Souza J.A., Santos J.M., Oliveira M.F. & Santos T.C. 2007. [Morphology of the ovary in rhea (Rhea americana).] Morfologia do ovário da ema (Rhea americana). Pesquisa Veterinária Brasileira 27(3):89-94. Departamento de Cirurgia, Faculdade de Medicina Veterinária e Zootecnia, USP, Av. Prof. Dr. Orlando Marques de Paiva 87, São Paulo, SP 05508-270. E-mail: tcsantos@usp.br The ovarian morphology of the sexually mature rhea (Rhea Americana) is described. Ovaries from 24 adult rheas in their reproductive age were collected in the slaughterhouse. Follicular diameters (n = 18) were measured and samples (n = 6) were fixed in 10% formaldehyde with 0.1M phosphate buffer at pH 7.4 for light microscopy. Results showed that the left ovary occupied the dorsal portion of the celomatic cavity in contact with the cranial portion of the left kidney and the suprarenal gland, being supported in the cavity through the mesovary. On the free surface of the ovary 72.4±17.09 follicles in different phases of development and 30.4±3.65 atretic follicles were observed. The follicles were linked to the ovarian surface by the follicular stalk and had a wide band surrounding its surface, the Stigma folliculare. Histologically, the ovary is constituted by a medulla, composed by connective tissue and vessels, and by a cortex with oocytes and follicles. The follicular wall is composed by the Theca externa and Theca interna, Stratum granulosum and the Zona radiata. The ovary surface is covered by a cubic epithelium, the germinal epithelium, on the connective tissue of the Tunica albuginea. The morphologic characteristics of the ovary of the rhea are due to the egg size in this species and generally similar to other birds.

Abstract in English:

Lima E.S.C., Pinto P.S.A., Santos J.L., Vanetti M.C.D., Bevilacqua P.D., Almeida L.P., Pinto M.S. & Dias F.S. 2004. [Isolation of Salmonella sp and Staphylococcus aureus at swine slaughtering as subsidy for HACCP, the Hazard Analysis and Critical Control Point system.] Isolamento de Salmonella sp e Staphylococcus aureus no processo do abate suíno como subsídio ao sistema de Análise de Perigos e Pontos Críticos de Controle - APPCC. Pesquisa Veterinária Brasileira 24(4):185-190. Depto Veterinária, Universidade Federal de Viçosa, 36571-000 Viçosa, Minas Gerais, Brazil. E-mail: pintopsa@ufv.br This study was done to evaluate the superficial contamination of swine carcasses by Salmonella sp and Staphylococcus aureus, the identification of microbiological hazards in different segments of the processing line, and critical control points (CCPs), through the quantification of risks. A total of 120 surface swabbing carcasses were collected in a slaughterhouse: after the scalding/dehairing (point A), before evisceration (B), after evisceration and splitting (C), and after 24 hours of refrigeration (D). Salmonella sp and S. aureus were isolated from 14 (11.7%) carcasses. No statistical difference between the points studied was observed. The number of S. aureus isolated was between 1.2 and 1.5 log UFC/cm2. It was concluded that the risks observed were the same for both microorganisms.

• Salmonella sp Staphylococcus aureus swine carcass slaughterhouse HACCP.

Abstract in Portuguese:

Lima E.S.C., Pinto P.S.A., Santos J.L., Vanetti M.C.D., Bevilacqua P.D., Almeida L.P., Pinto M.S. & Dias F.S. 2004. [Isolation of Salmonella sp and Staphylococcus aureus at swine slaughtering as subsidy for HACCP, the Hazard Analysis and Critical Control Point system.] Isolamento de Salmonella sp e Staphylococcus aureus no processo do abate suíno como subsídio ao sistema de Análise de Perigos e Pontos Críticos de Controle - APPCC. Pesquisa Veterinária Brasileira 24(4):185-190. Depto Veterinária, Universidade Federal de Viçosa, 36571-000 Viçosa, Minas Gerais, Brazil. E-mail: pintopsa@ufv.br This study was done to evaluate the superficial contamination of swine carcasses by Salmonella sp and Staphylococcus aureus, the identification of microbiological hazards in different segments of the processing line, and critical control points (CCPs), through the quantification of risks. A total of 120 surface swabbing carcasses were collected in a slaughterhouse: after the scalding/dehairing (point A), before evisceration (B), after evisceration and splitting (C), and after 24 hours of refrigeration (D). Salmonella sp and S. aureus were isolated from 14 (11.7%) carcasses. No statistical difference between the points studied was observed. The number of S. aureus isolated was between 1.2 and 1.5 log UFC/cm2. It was concluded that the risks observed were the same for both microorganisms.

Abstract in English:

This is the first description of adenocarcinomas of the bile ducts of the cat (Felix cattus domesticus), naturally infected with the parasite Platynosornum fastosurn. The studies were based on four old female cats. The authors hypothesize a relationship between the parasites and the neoplasms, which is suggested by the appearance of neoplasms at the sites of parasitism. In a series of neoplasms diagnosed in cats in Brazil over a 20 year period by the authors, only 5 were primary to the liver, 4 of those being the duct carcinomas described. These findings are analagous to those reported in humans, cats and dogs parasitized by Clonorchis sinensis or Opistorchis felineus. The relatively advanced age of the animals studied and the long survival of certain trematodes in the biliary ducts indicate a chronic state of the lesions and their subsequent development into cancer.

• Platynosomum fastosum cholangiocellular carcinoma carcinogenesis by helminths cat

Abstract in Portuguese:

Os autores fazem a primeira descrição de adenocarcinomas de dutos biliares em gatos (Felix cattus domesticus) com parasitismo dutal por Platynosomum fastosum. A observação é baseada em quatro casos e os animais tinham respectivamente 8,9 e 13 anos de idade, não havendo indicações da idade no 4º caso. Todos os animais eram fêmeas. Os autores concluem pela interdependência entre a parasitose e as neoplasias surgidas, o que é patenteado pelo aparecimento das mesmas ao nível dos sítios parasitados; de outro lado, em uma série de neoplasias diagnosticadas em gatos pelos autores ao longo de 20 anos, apenas cinco eram primárias do fígado, quatro dos quais eram os carcinomas dutais ora descritos. O problema apresenta analogia com os carcinomas de dutos biliares registrados em humanos, gatos e cães parasitados por Clonorchis sinensis ou por Opistorchis felineus. A idade relativamente avançada dos animais estudados e a sobrevivência longa de certos trematódeos das vias biliares indicam uma cronicidade de lesões dutais e a sua posterior cancerização.

• Platynosomum fastosum colangiocarcinoma carcinogênese por helmintos gato

Abstract in English:

NO ABSTRACT

• No Index Terms.

Abstract in Portuguese:

SEM RESUMO

• Sem termos de indexação.