RCAAP Repository
Evaluation of thyroxine (T4) and progesterone-17-alpha-OH circadian rhythm in swine females (Sus scrofa domestica - Linnaeus, 1758)
No presente trabalho foram utilizadas quatro fêmeas suínas, adultas, mestiças, não-gestantes e sem sinais clínicos de estro, criadas e mantidas sob condições industriais de criação. Objetivou-se avaliar a ocorrência de ritmicidade biológica circadiana para tiroxina e 17-alfa -OH progesterona. Os ensaios para dosagens hormonais foram executados utilizando-se a técnica de radioimunoensaio (RIE) em fase sólida e para isso foi empregado conjunto de reagentes comerciais (COAT-A-COUNT R). As análises séricas de tiroxina mostraram valores mais elevados ao redor das 15 horas, decrescendo a partir dai até atingir níveis menores no intervalo da zero às 4 horas. Quanto a 17-alfa -OH progesterona, observaram-se níveis mais elevados por volta das 3 horas, decrescendo gradativamente ao longo do dia, até atingir menor concentração no intervalo das 12 às 15 horas.
2022-12-06T14:04:29Z
Toniollo, Gilson Hélio Vicente, Wilter Ricardo Russiano Oliveira, Claudio Alvarenga de Cippola Neto, José
The arrangements configured by the coeliac artery in the domestic duck (Cairina moshata)
Mediante esta pesquisa, estudamos os arranjos configurados pela artéria celíaca em 30 patos domésticos Cairina moshata, sendo 20 machos e 10 fêmeas. Foi realizada a injeção de látex corado no sistema arterial e depois as peças foram fixadas em solução aquosa de formol a 10% para posterior dissecação dos vasos arteriais. A artéria celíaca nasce isoladamente da aorta descendente e fornece a artéria proventricular dorsal e a artéria esofágica e a seguir continua-se como tronco de dois outros ramos: esquerdo e direito. O ramo esquerdo emite um vaso que vasculariza a porção ventral do proventrículo (artéria proventricular ventral) e porção terminal do esôfago e, a seguir, fornece 3 ramos que vascularizam a face lateral esquerda e a margem cranial da moela ou ventrículo, bem como a junção pilórica na sua porção cranial. Do vaso destinado à margem cranial da moela, surgem artérias ao lobo hepático esquerdo em número de 1 em 5 preparações (16,6% ± 6,8), 2 em 14 peças (46,66% ± 9,1) ou 3 em 8 peças (26,66% ± 8,1). O ramo direito envia inicialmente as artérias esplênicas cujo número foi de 2 em 6 preparações (20% ± 7,3), 3 em 12 peças (40% ± 8,9), 4 em 8 peças (26,6% ± 8,1), 5 em 3 peças (10% ± 5,5) e 6 em 1 preparação (3,33% ± 3,3). Em seguida, emite colaterais ao lobo hepático direito que foram em número de 2 em 21 preparações (70% ± 8,4) ou 3 em 9 preparações (30% ± 8,4). Ainda, o ramo direito emite artérias endereçadas ao ceco esquerdo em número de 2 em 17 preparações (56,66% ± 9,1) ou 3 em 13 casos (43,33% ± 9,1). O ramo direito origina ainda 3 vasos endereçados à face lateral direita da moela (ventrículo), à margem caudal e à junção pilórica em sua porção mais caudal. A seguir, o ramo direito da artéria celíaca continua-se como artéria pancreaticoduodenal que supre o pâncreas e as porções ascendente e descendente do duodeno.
2022-12-06T14:04:29Z
Pinto, Marcos Rogério Alves Ribeiro, Antonio Augusto Coppi Maciel Souza, Wilson Machado de
The arrangements configured by the cranial and caudal mesenteric arteries in the domestic duck (Cairina moshata)
Herewith we studied the pattern disposition of the cranial and caudal mesenteric arteries in 30 domestic ducks (Cairina moshata), 20 males and 10 females. Latex 650 was injected in the arterial system and then the samples were fixed in 10% aquous formol solution for later dissection. The cranial mesenteric artery originates as a single vessel from the descendent aorta at the 6th or 7th rib, in a position immediately caudal to the celiac artery. Close to the ileo-cecum-colic junction, it subdivides itself primarily in 3 branches: the first branch gives away a vessel that goes to the colorectum, forming anastomosys with the caudal mesenteric artery. The second branch follows as a trunk to the jejunal arteries, that vary in numbers from 8-20. Finally the third branch is directed to the main and final portions of the right cecum and also ileo, vascularizing them. Concerning the pattern followed by the caudal mesenteric artery, we observed that it originates from the aorta as a single vessel, next to the caudal portions of the kidneys. In all observed samples the caudal mesenteric artery divides itself in 2 branches: a cranial one, that by itself gives away two smaller vessels to the mesorectum and a caudal branch that vascularizes the final portion of the rectum, cloacal bursa and cloaca.
2022-12-06T14:04:29Z
Pinto, Marcos Rogério Alves Ribeiro, Antonio Augusto Coppi Maciel Souza, Wilson Machado de
Toxoplasma gondii: II. Caracterização antigênica de taquizoítos de oito amostras
Oito amostras de T. gondii - LIV IV, LIV V e S 11 isoladas de suínos, RH e VPS de seres humanos, AS 28 de camundongo, HV III de cão e CN de gato - foram analisadas com o objetivo de verificar a existência de possíveis diferenças na resposta imune quando inoculadas em coelhos. Através da técnica de ELISA, não foram constatadas diferenças entre as oito amostras estudadas. Todas as amostras reagiram de forma semelhante com soros homólogos e heterólogos. A suspensão antigênica, constituída de extrato celular total, mostrou-se eficiente no ELISA teste indireto, já que os soros positivos reagiram fortemente e os soros negativos não apresentaram reação contra os antígenos testados. A análise das amostras, pela técnica de Western blot, revelou que os isolados de T. gondii compartilham vários antígenos com algumas variações. Dentre as bandas reconhecidas no Western blot, três foram comuns a todas as amostras: a p33 (33-37 kDa), p54 (52-55 kDa) e a p66 (66 kDa). A amostra HV III, isolada recentemente de um cão, foi a que mais diferiu no perfil antigênico. Essa amostra não apresentou três antígenos (50, 70 e 75 kDa) presentes nas demais amostras. Apenas dois antígenos, um de 62 kDa da CN e outro de 67 kDa da LIV IV, foram amostra-específicos.
2022-12-06T14:04:29Z
Mitsuka, Regina Navarro, Italmar Teodorico Beckner da Silva, Andrea Cláudia Breganó, José Wander Alfieri, Amauri Jankevicius, José Vitor Vidotto, Odilon
Evaluation of extraction methods for progesterone determination in rabbit (Oryctolagus cuniculus) feces by radioimmunoassay
The purpose of this study was to find a practical procedure for the extraction of progesterone (P4) from feces and to determine if the P4 plasma profiles during pregnancy were reflected in the total fecal P4 of pregnant rabbits. The rabbit was used as model for the techniques. Plasma and feces were collected from 11 rabbits during a period of 42 days. Three different methods of P4 extraction were used. The total P4 was measured by solid-phase radioimmunoassay (RIA) with 125I-P4 as the tracer. Results suggested that it was possible to extract total P4 from rabbit feces with methanol and petroleum ether. Plasma and fecal P4 profiles were compared for both pregnant and ovariectomized rabbits. It was possible to differentiate total P4 extracted from day two through 28 after breeding (P<0.01).
2022-12-06T14:04:29Z
Korndörfer, Clotilde Maria Meirelles, Cyro Ferreira Bueno, Ives Cláudio da Silva Abdalla, Adibe Luiz
Evaluation of oocyte maturation conditions and bull effect on the in vitro bovine embryo production
The conditions of in vitro maturation of bovine oocytes (Exp. I) and bull effect (Exp. II) on cleavage (CR) and the in vitro morulae and blastocysts (MO/BL) rates were evaluated. Imatured oocytes were matured in vitro under different conditions: B-199 medium with 5% estrous cow serum (ECS), 5% fetal calf serum (FCS) and granulosa cells (T1/Exp. I) or B-199 medium with 10% FCS, 14 IU/ml PMSG and 7 IU/ml hCG (T2/Exp I). After 24 h culture, the mature oocytes were inseminated with frozen-thawed semen from two bulls (R1 and R2/Exp. II). In the Exp. I, the T1 and T2 oocytes were inseminated with semen from R1/Exp. II and in the exp. II the semen from both bulls inseminated T1/Exp. I oocytes. After 48 h, the 2-4 cells embryos were transferred into embryo culture droplets and were further cultured for 9 days. The CR of T2/Exp I was higher (p<0.01) than T1/Exp. I. There was a significant difference (p<0.05) between bulls on CR and Mo/Bl production. The use of hormones in a maturation medium has no effect on embryo production, however the procedure seems to be simpler than with granulosa cells. The use of semen from different bulls for in vitro fertilization has affected the subsequent in vitro production of embryos.
2022-12-06T14:04:29Z
Coelho, Lia de Alencar Esper, Cesar Roberto Garcia, Joaquim Mansano Vantini, Roberta Silva Filho, Izaltino Rocha Almeida Jr., Ivo Luis
Diagnostic laparoscopy in dogs: analysis of 27 cases
Laparoscopy was used for the visualization of abdominal viscera of 27 dogs afflicted with different pathologies. In all cases general anesthesia was applied. An incision was made on the ventral midline approximately 1cm caudal to the navel. At this point a trocar was introduced for the production of pneumoperitoneum. After that, the optical probe was introduced for inspection of the abdominal cavity. The different organs were visually identified by their external morphology. Moreover, the exam also allowed the identification of different pathologies. In two cases of splenic and pancreatic atrophy, as well as in case of hepatic necrosis the laparoscopic examination was instrumental for the understanding of the disease, leading to a final diagnostic confirmed by histopathological analysis. The presence of hepato-frenic adhesion was immediately identified in one case, helping in the planning of corrective surgery. Cases of piometritis in initial stages were identified thanks to the laparoscopic exam, since biochemical and radiological data was highly inconclusive. The laparoscopy determined the impossibility of surgical removal of two hepatic tumors and one case of intestinal neoplasia. The results most likely influenced the request for euthanasia by the owners. The present observations agree with citations in which laparoscopy cannot avoid major surgery, however it gives valuable information regarding the conditions of the tissues and the extension of the lesions.
2022-12-06T14:04:29Z
Schossler, João Eduardo
Ruminal degradability in dry and lactating cows, with 70% or 50% of roughage as dry matter diets
Four dry and four lactating Holstein heifers, received the following treatments to evaluate rumen degradabilities of soybean meal, rice meal, coast cross hay and sugar cane, through a dacron bag in situ technique: A = 70% roughage diet; dry cows; B = 70% roughage diet, lactating cows; C = 50% roughage diet, dry cows and D = 50% roughage diet, lactating cows. A randomized block design was used and the treatments had four repetitions in different times. Dry cows presented a higher degradability rate for soybean meal, coast cross hay and sugar cane than lactating females. Lactating cows consumed 40% more dry matter than the dry ones and presented higher rumen liquid turn-over. Coast cross hay and sugar cane were better digested with 70% roughage diets, than with the 50% roughage diets.
2022-12-06T14:04:29Z
Lucci, Carlos de Sousa Melotti, Laércio Kodaira, Vanessa Castro, Ari Luiz de Rodrigues, Paulo Henrique Mazza
Weaning of calves with utilization of extrused whole soybean in calf starters
Vinte bezerros foram submetidos, logo após a ingestão de colostro, aos tratamentos: mistura iniciadora com farelo de soja (FS) ou soja integral extrusada (SIE) mais leite na forma líquida; e com FS ou SIE mais leite na forma em pó. Em todos os tratamentos o leite (na forma líquida ou em pó) foi retirado no 36º dia, quando os animais passaram a receber apenas as respectivas misturas iniciadoras. Do 7º ao 35º dia, os tratamentos com leite na forma líquida apresentaram maiores ganhos de peso, e aqueles contendo misturas iniciadoras com SIE resultaram em menores consumos de alimentos. Após a retirada do leite, do 36º ao 63º dia, ou considerando todo o período experimental (7º ao 63º dia), ocorreram maiores ganhos em alturas nas cernelhas nas dietas com leite na forma líquida. Níveis de glicose sangüínea e aspectos de desenvolvimento da mucosa do rúmen de animais abatidos e incidências de diarréias não diferiram entre tratamentos. O uso de SIE para bezerros desmamados precocemente mostrou-se viável; todavia, o sistema de alimentação com leite ministrado na forma em pó não permitiu o desenvolvimento adequado dos animais.
2022-12-06T14:04:29Z
Brisola, Marcelo Landim Lucci, Carlos de Sousa
Silagem de cana-de-açúcar em substituição a silagem de sorgo granífero para vacas leiteiras
Doze vacas Holandesas e Schwyz foram utilizadas em um delineamento switch-back para avaliar os tratamentos constituídos das seguintes silagens, corrigidas para um mesmo nível protéico pela adição de proporções diferentes de farelo de algodão, de forma a garantir os nutrientes necessários para a mantença das fêmeas e ainda para a produção dos primeiros 8 quilogramas de leite por animal e por dia, havendo suplementação de mistura concentrada para as quantias de leite secretadas superiores a oito quilogramas: Tratamento A) silagem de sorgo granífero; Tratamento B) 50% de silagem de sorgo granífero e 50% de silagem de cana-de-açúcar; Tratamento C) silagem de cana-de-açúcar. As produções de leite por animal e por dia foram respectivamente 12,9 kg, 12,3 kg e 11,8 kg, sendo o tratamento A, significativamente superior ao C (p<0,05). O consumo de matéria seca total por 100 kg de peso vivo (3,0 kg, 3,0 kg e 2,8 kg), bem como o de nutrientes digestíveis totais (9,2 kg, 8,8 kg e 8,0 kg), respectivamente para os tratamentos A, B e C, não foram estatisticamente diferentes. Doze ovinos da raça Ideal prestaram-se para realizar prova de digestibilidade aparente com os mesmos tratamentos aplicados às vacas em lactação: os valores encontrados para digestibilidade da matéria seca foram 54,4%; 56,8% e 52,0%; para os tratamentos A, B e C, não sendo consideradas as diferenças estatisticamente significativas.
2022-12-06T14:04:29Z
Valvasori, Edison Lucci, Carlos de Sousa Pires, Fernando Lima Arcaro, Juliana Rodrigues Pozzi Arcaro Jr., Irineu
Management and nutrition strategies to reduce the breeding season in beef cows
Effects of temporary calf removal and phosphorus supplementation on conception rate in a 60 or 120 day breeding season period was observed in several trials conducted over three years on Nelore cows. Experiment I involved 47 acyclic Nelore cows with suckling calves ranging in age from 55 to 70 days. Calves were temporarily removed from their dams for 48 h at the beginning of the trial or stayed with the dams throughout the trial. The proportion of cows that cycled during the breeding season was 5 out of 25 (20%) in the control group and I5 out of 22 (68%) in the group whose calves had been removed (p<0.05). In Experiment II, 66 acyclic Nelore cows, averaging 60 ± 0.57 (x ± SE) days post-partum were allocated at random in three groups as follows: A, calves temporarily removed from their dams for 48 h on the first day of the breeding season; B, similar to Group A, except that calves were removed for 72 h and C, control group (no calf removal). The percentage of pregnant cows at the end of the breeding season was 54.6 in control cows compared with 50.0 in the 48 h removal group and 63.6 in the 72 h removal group. In Experiment III, 75 pregnant cows were selected in the final trimester of gestation. Cows were allocated at random in four groups: Group A, the cows received a free choice mineral mixture with 12% p during three months before and three months after the calving season, furthermore, calves were temporarily removed from their dams on first day of breeding season for a period of 96 h; B, same as Group A, except that the calves were not removed; C, same as Group A, except that the mineral mixture had 8.8% P; and D: same as Group C, except no calf removal. More cows receiving 12% P were cycling (p<0.05) at 30, 60 and 90 days into the breeding season. Under these trial conditions, restricted suckling for 48, 72 or 96 h prior to the breeding season caused inconsistent results on pregnancy rates. However, the restricted suckling of cows with marginal range plasma phosphorus (<4.0 mg/100 ml) enhanced ovarian function.
2022-12-06T14:04:29Z
Meirelles, Cyro Ferreira Vitti, Dorinha Miriam Silber Schmidt Abdalla, Adibe Luiz
Ramification and distribuition of the pulmonary trunk in relation to the bronchus in crossbred zebu cattle
In this research we studied the ramification and distribution of pulmonary arteries. For this study we used 20 bovine zebu-like fetuses (13 male and 7 females), with ages varying from 06 to 09 months. The animals were fixed with formol 10% and the method of dissection consisted in the opening of the thoracic cavity and this allowed the individualization of arteries and bronchi. It was observed that usually, in 15 times (75%) the first collateral branch to leave the right pulmonary artery is the upward branch, followed by the downward branch, that join the two segmental bronchi from the tracheal bronchus, and respectively irrigates the cranial portion and the caudal lung lobe. Almost right after these structures the accessory lobar branch is followed by the middle lobar branch. The accessory lobar branch also appeared two times (10%) after the middle lobar branch, and 5 times (25%) at the same position of the middle lobar branch. Five preparations showed the first two branches of the right pulmonary artery emerging in form of a common branch, the cranial lobar branch. From the left pulmonary artery the first and second branches are 18 times (90%) the upward and downward branch. Two times (10%) these two branches came from a single collateral branch, the cranial lobar branch. A caudal lobar branch (right and left) enters each caudal lobe (right and left) and gives off a variable number of arterial branches (6 to 14) on the right side and (7 to 16) on the left side.
2022-12-06T14:04:29Z
Ribeiro, Antonio Augusto Coppi Maciel Ramos, Dinora Boccaletti Pinto, Marcos Rogério Alves
Leptospirosis on animal reproduction: IV. Serological findings in mares from six farms in Rio de Janeiro, Brazil (1993-1996)
From February 1993 until October 1996, 547 blood samples were collected from mares with reproductive problems in six farms of the state of Rio de Janeiro, Brazil, and tested by the microscopic agglutination test (MAT) with live antigens for antibodies to seven leptospira serovars. A total of 235 positive reactions (42.96%) at a minimum serum dilution of 1:100 were observed against one or more serovars, which in comparison to other studies developed in Brazil, may be considered as a high prevalence. On mares with anti-leptospiral antibodies, the predominant serovar was icterohaemorrhagiae, reactive on 102 (43.40%) samples, followed by 64 (27.23%) reactions against bratislava, and 34 (14.47%) against pomona. The high prevalence of antibodies to serovar icterohaemorrhagiae observed in this study could have been expected, because in Brazil about 36% of the population of the maintenance host of such strain, Rattus norvegicus, are leptospiral carriers, mainly to strains of the Icterohaemorrhagiae serogroup.
2022-12-06T14:04:29Z
Lilenbaum, Walter
Diagnóstico de cistos ovarianos pela palpação de ultra-sonografia transretal em fêmeas suínas: relato de dois casos clínicos
Foram abordados alguns conceitos sobre a fisiopatologia e a semiologia de cistos ovarianos em fêmeas suínas, descrevendo-se dois casos clínicos, um sintomático e outro assintomático. No caso sintomático, observou-se infertilidade, cios irregulares, edema de vulva e clitóris aumentado de volume. À palpação retal, constataram-se cistos em ambos os ovários da fêmea com sintomas e um cisto no ovário esquerdo da assintomática. A ultra-sonografia possibilitou visualizar, assim como avaliar com precisão o grau de luteinização e o tamanho dos cistos. A necrópsia confirmou os achados da palpação e ultra-sonografia transretal.
2022-12-06T14:04:29Z
Viana, Carlos Henrique Cabral Arruda, Rubens Paes de Moretti, Anibal Saint'Anna Visintin, José Antonio
Clinical study of lower urinary tract disease of domestic cats of São Paulo
Fifty cats with signs of lower urinary tract disease (hematuria, dysuria, pollakiuria or urethral obstruction) were studied as far as clinical, laboratory and radiographic abnormalities were concerned. These animals were distributed in two groups, the first one comprised thirty-six male cats with urethral obstruction and the second, fourteen male and female cats presenting hematuria, dysuria and/or pollakiuria. Another group of twenty-five healthy cats, both sexes, different ages and breeds, fed exclusively with commercial dried food was included as control. Serum urea and creatinine measurements, urine analysis, urine culture and excretory urography were performed in all cats. The results showed that urinary tract infection was rarely seen. No significant difference was detected between castrated or intact animals. Among the sick cats the most consistent abnormalities found were: urinary alkaline pH, crystalluria and thickness of the urinary bladder wall. The difference in urine pH observed among healthy and sick animals fed with the same kind of meal should be stressed and deserves further studies.
2022-12-06T14:04:29Z
Reche Jr., Archivaldo Hagiwara, Mitika Kuribayashi Mamizuka, Elza
Post-partum fertility in thoroughbred mares
Observaram-se 549 éguas da raça Puro-Sangue de Corrida paridas durante o segundo semestre, no período de 1º de julho de 1983 a 31 de dezembro de 1994, com a finalidade de se analisar o índice de concepção pós-parto, a duração e a fertilidade dos cios pós-parto, os percentuais de produtos nascidos no ano seguinte e relacioná-los com a idade das éguas. Verificou-se que éguas com idade superior a 13 anos apresentam uma capacidade significativamente menor de conceber e levar a gestação a termo do que éguas mais novas. O 1º cio pós-parto ocorre em média aos 12,3 (± 10,9) dias pós-parto e, quando apresenta uma duração de 8 a 14 dias, é significativamente mais fértil do que quando tem uma duração fora destes limites. A taxa de prenhez observada no 2º cio pós-parto foi significativamente superior à do 1º cio pós-parto.
2022-12-06T14:04:29Z
Kurtz Filho, Mario Alda, Joaquin Lopes de Deprá, Neiva Medianeira Brass, Karin Érica Corte, Flávio Desessards de La Silva, José Henrique Souza da Silva, Carlos Antonio Mondino Emanuelli, Isabele Picada
Morphometric evaluation of nerve fibers after surgical repair by allograft and tubular prothesis of the ulnar nerve in dogs
O objetivo da investigação foi o de comparar os resultados observados por meio da avaliação morfométrica de fibras nervosas regeneradas, em cães, após 26 semanas da reparação cirúrgica de falhas do nervo ulnar, através de auto-enxertos e próteses tubulares de silicone. Para cada procedimento foram utilizados quatro animais. Dos nervos regenerados e dos enxertos foram retirados segmentos para avaliação em nível de microscopia eletrônica. De cada corte foram amostrados seis campos distintos com 1,750 µm² cada, que foram fotografados com aumentos de 1.880 vezes. Através de sistema computadorizado de morfometria (SigmaScan - Jandel Co., USA), obtiveram-se os seguintes parâmetros: diâmetros das fibras mielínicas; diâmetros dos axônios mielínicos; espessuras das bainhas de mielina e diâmetros dos axônios amielínicos. Os nervos regenerados no interior das próteses tubulares apresentaram diâmetros das fibras mielínicas com média de 5,12 ± 1,67 µm; média dos diâmetros dos axônios mielínicos de 4,08 ± 1,52 µm; média das espessuras das bainhas de mielina de 0,52 ± 0,18 µm; média dos diâmetros dos axônios amielínicos de 0,98 ± 0,37 µm. Os enxertos apresentaram os seguintes valores: média dos diâmetros das fibras mielínicas de 6,04 ± 2,27 µm; média dos diâmetros dos axônios mielínicos de 4,59 ± 1,95 µm; média das espessuras das bainhas de mielina de 0,72 ± 0,23 µm; média dos diâmetros dos axônios amielínicos de 0,96 ± 0,40 µm. Estes resultados permitiram concluir que os procedimentos cirúrgicos utilizados, quando analisadas as fibras regeneradas no interior das próteses tubulares e dos auto-enxertos, não apresentaram diferenças morfométricas significantes, decorridas 26 semanas de obervação pós-operatória.
2022-12-06T14:04:29Z
Stopiglia, Ângelo João Lainetti, Raquel Dias Pires, Raquel Siimoni Da-Silva, Ciro Ferreira
Infecciosidade de rotavírus suíno em fezes
Rotaviruses are the major pathogen for both human and animal. They affect young animals in intensive rearing and cause great economic losses. This study intended to evaluate the infectivity of porcine rotavirus maintained for 32 months at approximately 10ºC. in the original stools specimens. Thirty stools specimens of 1-4-week-old piglets originating from breeding farms located in the southwest region of the Paraná State were selected for this study. They were randomly chosen from stools samples positive for rotavirus by polyacrylamide gel electrophoresis (PAGE) at the time of collection. The thirty stools samples maintained for 32 months at approximately 10ºC were re-tested by PAGE and 11 out of 30 were still positive showing the integrity of the eleven bands of viral RNA. To demonstrate the maintenance of viral infectivity, clarified and trypsin-treated stools specimens homogenates were inoculated in MA-104 cell cultures. After an average of 3 blind passages 5 out of 11 samples demonstrated cytophathic effect similar to that of standard simian rotavirus (SA-11). To confirm these findings, a immunofluorescent test was used and demonstrated typical cytoplasmic granular fluorescence. Electron microscopy of stools samples showed that most of the virus particles were single- shelled and some were found to be in an advanced state of degradation. Therefore the conclusion was that porcine rotavirus infectivity is maintained for a long period of time in stool specimens at low temperature. This certainly is an important aspect for the maintenance of viable virus in natural condition as well as for the transmission of the disease.
2022-12-06T14:04:29Z
Ramos, Ana Paula Dores Stefanelli, Carla Cristina Linhares, Rosa Elisa Carvalho Brito, Benito Guimarães de Nozawa, Carlos Mitihiko
Evaluation of athletic activity after carpic arthroscopy in fracture of carpic-radial bone of throubread
We used twelve horses, PSI, nine males, from the Jockey Club of São Paulo. The surgical treatment was very efficient in all horses in this study, and we found better results than those found in the literature.
2022-12-06T14:04:29Z
Salles Gomes, Thiago Luiz Alvarenga, José
Poultry litter ruminal degradability through in situ nylon bag technique with heifers
Avaliou-se a degradabilidade ruminal da matéria seca (MS), matéria orgânica (MO) e proteína bruta (PB) de camas de frangos tendo como substrato cascas de arroz, cascas de amendoim e sabugo de milho, através da técnica de sacos de náilon in situ em bovinos dotados de fístulas permanentes de rúmen alimentados com silagem de milho e cama de frangos. O delineamento estatístico foi o de blocos ao acaso, com repetição dentro dos blocos, e os resultados obtidos foram: a degradabilidade efetiva da MS (calculada para taxa de passagem de 0,02) da cama de cascas de amendoim (70,07%) igualou a degradabilidade da cama de sabugo de milho (67,42%) e ambas superaram (p<0,05) a da cama de cascas de arroz (60,68%), sendo estes achados semelhantes para a MO (cama de cascas de amendoim: 67,66%; sabugo de milho: 67,43%; cascas de arroz: 60,74%). Para a PB, a degradabilidade efetiva da cama de sabugo de milho (78,39%) foi significativamente menor (p<0,05) quando comparada às camas de cascas de amendoim (83,23%) ou cascas de arroz (83,97%). A casca de amendoim igualou o sabugo de milho, material considerado de boa qualidade na confecção de camas de frangos para utilização na alimentação animal (ruminantes), e superou a casca de arroz.
2022-12-06T14:04:29Z
Melotti, Laércio Lucci, Carlos de Sousa Morgullis, Sérgio Carlo Franco Castro, Ari Luiz de Rodrigues, Paulo Henrique Mazza