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Item Creatinina sérica como fator preditivo de óbito em cães atendidos em situação de urgência ou emergência(Universidade Federal de Goiás, 2024-11-11) Mamede, Paulo Henrique Lino; Braga, Sandro de Melo; Fioravanti, Maria Clorinda Soares; Silva, Marco Augusto Machado; http://lattes.cnpq.br/2134206254307043; Silva, Marco Augusto Machado; Arnhold, Emmanuel; Veridiane da Rosa Gomes, Veridiane da RosaEmbargadoItem Abordagem diagnóstica da urolitíase em cães e gatos(Universidade Federal de Goiás, 2025-02-14) Fraga, Heloisa Alvim Rodrigues; Botelho, Ana Flavia Machado; http://lattes.cnpq.br/7634869593114668; Castro, Luma Tatiana Silva; http://lattes.cnpq.br/7632876278053145; Fioravanti, Maria Clorinda Soares; http://lattes.cnpq.br/8772502020076257; Fioravanti, Maria Clorinda Soares; http://lattes.cnpq.br/8772502020076257; Borges, Naida Cristina; http://lattes.cnpq.br/9181279951885005; Souza, Saura Nayane de; http://lattes.cnpq.br/9991507572546807Embargada.Item Avaliação do trânsito gastrointestinal de cães por meio de radiografias contrastadas com Esferas de Polietileno Impregnadas com Bário (BIPS)(Universidade Federal de Goiás, 2025-02-19) Souza, Murilo Rodrigues de; Silva, Marco Augusto Machado; http://lattes.cnpq.br/2134206254307043; Botelho, Ana Flávia Machado; http://lattes.cnpq.br/7634869593114668; Botelho, Ana Flávia Machado; http://lattes.cnpq.br/7634869593114668; Oliveira, Iago Martins; http://lattes.cnpq.br/5607454383736414; Oliveira, Raquel de Souza Lemos de; http://lattes.cnpq.br/2800379800893485Embargada.Item Identificação de enterobactérias e Acinetobacter spp. em araras-canindé (Ara ararauna) recebidas no Centro de Triagem de Animais Silvestres de Goiás(Universidade Federal de Goiás, 2025-02-25) Alves, Lisandra Rodrigues; Almeida, Ana Maria de Souza; Ballaminut, Nara; Borsanelli, Ana Carolina; http://lattes.cnpq.br/4344854096706983; Borsanelli, Ana Carolina; Silva, Rodrigo Otávio Silveira; Baldini, Maria Helena MazzoniEmbargoItem Transferência Intrafolicular de Ovócitos Imaturos (TIFOI) para maturação in vivo de ovócitos bovinos vitrificados(Universidade Federal de Goiás, 2024-07-30) Chaves, José Eduardo Vieira; Dode, Margot Alves Nunes; http://lattes.cnpq.br/6912403887412900; Melo, Leonardo de França e; http://lattes.cnpq.br/7210044551904428; Sprícigo, José Felipe Warmling; http://lattes.cnpq.br/1634468962324103; Spricigo, Jose Felipe Warmling; Pascottini, Osvaldo Bogado; Lucci, Carolina MadeiraEmbargada.Item Reanimação volêmica com solução de cloreto de sódio 0,9% em cadelas com suspeita de piometra e sepse(Universidade Federal de Goiás, 2022-03-07) Faria, Amanda Carvalho; Franco, Leandro Guimarães; Braga, Sandro de Melo; Silva, Marco Augusto Machado; http://lattes.cnpq.br/2134206254307043; Silva, Marco Augusto Machado; Pimenta, Eutálio Luiz Mariani; Botelho, Ana Flávia MachadoEmbargado.Item Avaliação radiográfica, macroscópica e determinação da matéria mineral de carcaças de Psittacara leucophthalmus(Universidade Federal de Goiás, 2015-10-09) Alves, Elizama Rodrigues; Miyagui, Eliane Sayuri; Cardoso, Júlio Roquete; Borges, Naida Cristina; Borges, Naida Cristina; Cruz, Viviane Souza; Café, Marcos BarcellosEmbargadoItem Avaliação oftalmológica de bovinos hígidos das raças Gir e Nelore(Universidade Federal de Goiás, 2016-07-22) Morais, Tábata Laíza; Lima, Aline Maria Vasconcelos; Martins, Danieli Brolo; Cunha, Paulo Henrique Jorge da; http://lattes.cnpq.br/3363890096623194; Cunha, Paulo Henrique Jorge da; Amaral, Andréia Vitor Couto do; Borges, Naida CristinaConteúdo embargadoItem Diagnóstico soroepidemiológico e molecular de Mycoplasma gallisepticum e Mycoplasma synoviae em frangos de corte(Universidade Federal de Goiás, 2011-02-25) Alcântara, Juliana Bonifácio de; Linhares, Guido Fontgalland Coelho; Café, Marcos Barcellos; Andrade, Maria Auxiliadora; Andrade, Maria Auxiliadora; Barbosa, Silvia Minharro; Stringhini, José Henrique-Item Avaliação do potencial do peptídeo indolicidina na descontaminação de sêmen bovino(Universidade Federal de Goiás, 2021-03-04) Santos, Gabriel Henrique; Lorenzón, Esteban Nicolás; http://lattes.cnpq.br/5721301206170261; Penido, Paula Maria Pires do Nascimento; http://lattes.cnpq.br/3728828455536727; Souza, Guilherme Rocha Lino de; http://lattes.cnpq.br/1127532567066692; Souza, Guilherme Rocha Lino de; Gambarini, Maria Lucia; Ferreira Júnior, ÁlvaroThe growing interest in artificial insemination in cattle has led researchers to study techniques that make it possible to preserve semen without compromising its ability to fertilize. This project evaluated the antiviral and antibacterial activity of the peptide indolicidin and its potential use as an antiviral agent for a product of high commercial value, which is the semen of selected cattle. Firstly, the antibacterial activity of the indolicidin peptide was evaluated against the bacterium E. coli at the concentrations described in the literature. Based on Escherichia coli, the antibacterial activity of the peptide was evaluated at concentrations of 10 μM, 20 μM and 30 μM against Leptospira interrogans. Subsequently, the peptide was tested at concentrations of 10 μM, 20 μM and 30 μM on cultured cells (MDBK), in which no changes in cell morphology or viability were observed. The antiviral activity of the peptide was then analyzed in MDBK cells artificially infected with bovine alphaherpesvirus type-1 (BoHV-1), in which the peptide was incubated at concentrations of 4 μM, 6 μM, 8 μM, 10 μM, 20 μM and 30 μM, and the safety of the peptide against bovine semen was evaluated according to quality parameters. The indolicidin peptide was safe against semen and cultured cells. In bacteria, the best concentration identified was 30 μM, while in BoHV-1 the best concentration was 8 μM. To date, no methodology has been described for the efficient inactivation of BoHV-1, nor even for minimizing the viral concentration in bovine semen, which makes this project interesting for the commercialization of semen on the national and international markets.Item Maus-tratos animais no contexto de violência doméstica na região metropolitana de Goiânia(Universidade Federal de Goiás, 2022-02-03) Soares, Fernanda Bastos; Machado, Ingrid Bueno Atayde; Souza, Tatiana Machiavelli Carmo; http://lattes.cnpq.br/3120018580121934; Jayme, Valéria de Sá; http://lattes.cnpq.br/0603234425928309; Jayme, Valéria de Sá; Modena, Celina Maria; Hellmeister Filho, PauloVeterinary Medicine is one of the professions that integrate the health area. From this assumption, that professionals have the possibility to intervene in situations which cause damage to animal and human health, just as domestic violence and animal abuse. Studies show that individuals who are violent with animals tend to commit violent crimes against people, or people who are violent with others may commit crimes against animals. However, there are few studies within Veterinary Medicine that assess such behaviors and their consequences. This study evaluated the perception of the link between domestic and animal violence, which has a public health character and has closely linked components, as they act as indicators of various social problems, such as domestic violence and social vulnerability. A total of 117 questionnaires were applied, 80 of which were applied to Veterinary Medicine students, 34 to veterinarians and three to women. Data were collected about the crimes of animal abuse and domestic violence, through the Public Security Observatory of the State of Goiás, in which the dynamics between the analyzed crimes was observed, signaling that before the aggression to the human being, the animal is the first victim. It was found that Veterinary Medicine and its professionals are not prepared to combat crimes of animal abuse and, consequently, help to break the cycle of domestic violence, just as the women participating in the research showed that their aggressors have traces of aggression against animalsItem Soroprevalência e fatores de risco para infecção por Toxoplasma gondii em ovinos no estado de Goiás(Universidade Federal de Goiás, 2021-01-29) Moura, Catarina Elízia Bernardino Rates de; Jayme, Valéria de Sá; http://lattes.cnpq.br/0603234425928309; Monteiro, Caio Márcio de Oliveira; http://lattes.cnpq.br/2496419306394657; Teixeira, Weslen Fabricio Pires; http://lattes.cnpq.br/1222753642148629; Teixeira, Weslen Fabricio Pires; Felippelli, Gustavo; Pascoal, Lívia MendonçaToxoplasmosis is a zoonosis of wide distribution worldwide, caused by the protozoan Toxoplasma gondii, which can cause economic losses in sheep production mainly due to the appearance of reproductive disorders. In addition, sheep infected with T. gondii may represent a potential risk to human health, due to the large cystogenic capacity that some isolates of the parasite present, leading to the possibility of human infection through the ingestion meat from infected animals. In this sense, the objective of the aforementioned work was to evaluate seroprevalence and risk factors for Toxoplasma gondii infection in sheep in the state of Goiás, located Center-Western region of Brasil. For this purpose, through the indirect immunofluorescence reaction (IFA), 1000 serological samples from sheep from the 18 microregions were analyzed. of State. The data were analyzed using Pearson's chi-square test, which evaluated the possible risk factors for T. gondii (p≤0.05), with the odds ratio (OR) estimates obtained, with a confidence interval of (CI) 95%. The risk factors were calculated considering the risk for each animal, (calculated from the risk), using the software Statistica 10 (StartSot Inc., 2011). In 34.3% (343/1000) of the analyzed samples, the occurrence of anti- T. gondii antibodies (IgG) was observed with serological titers ≥ 64 to ≥ 65536 that varied in the regions from 18.1% (15/83) to 64.15% (34/53). In all regional unitis sampled in the state of Goiás, seroreagent animals were detected, being the age, the water, the form of replacement of the herd and the presence of domestic cats and wild animals, considering the risk factors statistically associated with the serum-occurrence of antibodies against Toxoplasma gondii in sheep.Item Efeitos vasculares do fotossensibilizador porfirínico meso-tetrametilpiridil na terapia fotodinâmica em modelo de membrana corioalantoide(Universidade Federal de Goiás, 2020-08-06) Lemes, Isis de Carvalho Rodrigues Santana; Miguel, Marina Pacheco; http://lattes.cnpq.br/3078760368293415; Oliveira, Vilma Ferreira de; http://lattes.cnpq.br/0987498380173917; Souza, Guilherme Rocha Lino de; http://lattes.cnpq.br/1127532567066692; Souza, Guilherme Rocha Lino de; Cruz, Vanessa de Souza; Almeida, Luciane Madureira dePhotodynamic therapy is based on the administration of a photosensitizing substance under light activation through the emission of an appropriate wavelength in the presence of molecular oxygen. Photochemical and photophysical reactions trigger the destruction of irradiated tissue, either by cell injury or vascular injury. Therefore, the main therapeutic applications of photodynamic therapy are cancer therapy and the treatment of disorders related to neovascularization. Cationic porphyrins have chemical and physical properties that favor their use in vascular photodynamic therapy, which targets the destruction of tissue vascularization. For the development of protocols that can be used in clinical practice, the experimental model of the chicken embryo chorioallantoid membrane is used. This model allows the direct visualization and evaluation of a wide vascular network. Therefore, this study aimed to evaluate the vascular effect of photodynamic therapy, using meso-tetramethylpyridyl porphyrin applied topically to the chorioallantoic membrane, at a dose of 100µM. Images were acquired before treatment and every 30 minutes after application, until completing five hours of evaluation. This analysis was based on the general vascular response, quantifying the vascular area in pixels and obtaining the vascular reduction in percentage. In addition, the vascular effect was assessed through macroscopic and microscopic visual assessment. The main visual changes identified were vasoconstriction, thrombus formation, atrophy of the mesoderm, perivascular fibrosis, hyperemia of ectodermal capillaries and necrosis of the chorioallantoid membrane. As for vascular reduction, treatment with light irradiation (14%) or solvent alone (5%) did not show significant results, as well as treatment with photosensitizer (23%). However, the vascular reduction after photodynamic therapy was 35%. Thus, although all treatments have promoted macroscopic and microscopic changes in the membrane, the vascular reduction in the group treated with photodynamic therapy using meso-tetramethylpyridyl porphyrin was superior to the treatments with light and solvent. Thus, this treatment, under these conditions, has a potential use in the treatment of disorders that target vascularization.Item Avaliação clínico-laboratorial, histopatológica hepática e desempenho de ovinos alimentados com feno de braquiária ou cana-de-açúcar(Universidade Federal de Goiás, 2009-03-03) Lima, Flávia Gontijo de; Araújo, Eugênio Gonçalves de; http://lattes.cnpq.br/3919777570059928; Borges, José Renato Junqueira; http://lattes.cnpq.br/3586382943482522; Fioravanti, Maria Clorinda Soares; http://lattes.cnpq.br/8772502020076257; Fioravanti, Maria Clorinda Soares; Castro, Márcio Botelho de; Neiva, José Newman MirandaThe species of Brachiaria are important forages from Brazilian tropical regions, mainly the Central-Western region. Some species of Brachiaria have been described as cause of hepatogenous photosensitization in ruminants. Initially, the disease was attributed to the fungus Pithomyces chartarum, but recent studies suggest that the steroidal saponins present in the grasses have toxic principles responsible for the photosensitization. The objective of this study was to evaluate the hepatic function and the performance of lambs fed with B. brizantha hay or sugar cane (Saccharum officinarum L.), by means of clinical examination, laboratory tests, and macro and microscopic analysis of the liver. Twelve Saint Ines lambs were used. The animals were divided into two experimental groups: group hay (six lambs fed with roughage of B. brizantha hay and concentrate) and group sugar cane (six lambs fed with roughage of sugar cane and concentrate). The hay used to feed the lambs did not contain Pithomyces chartarum spores. The clinical examinations occurred at each seven days, the laboratory tests at each 14 days, and the weighings at each 28 days. At the end of 93 days of experiment the lambs were slaughtered, the macroscopic analysis of the the organs was carried out, and the liver fragments were collected for the microscopic analysis. The lambs were clinically healthy, during the whole period, except at the beginning of the experiment, when some animals presented pneumonia. The only biochemistry alterations suggestive of hepatic damage were the increase of the GGT values and the decrease of total cholesterol in both groups. No animal fed with B. brizantha hay presented macroscopic alteration in the liver. The microscopic analysis of the liver revealed preserved hepatocytes and presence of multifocal infiltration of mononuclear inflammatory cells in the hepatic parenchyma and also in the portal triads, characterizing cholangitis in both groups. Degenerations suggestive of hepatic esteatosis were observed in four animals fed with sugar cane. Feeding lambs with B. brizantha hay promoted similar performance than feeding the animals with sugar cane. Regardless of the type of feeding, the lambs presented, as biochemistry alteration of the hepatic function, increase of the serum levels of GGT and decrease of total cholesterol, followed by histological alterations, characteristic of light cholangitis.Item Infecção experimental por Trypanosoma vivax em bovinos da raça curraleiro pé-duro(Universidade Federal de Goiás, 2019-08-29) Mendonça, Débora Ribeiro de; Lopes, Welber Daniel Zanetti; http://lattes.cnpq.br/4480577038117234; Martins, Danieli Brolo; http://lattes.cnpq.br/2159963349521553; Cunha, Paulo Henrique Jorge da; http://lattes.cnpq.br/3363890096623194; Cunha, Paulo Henrique Jorge da; Moura, Maria Ivete de; Fioravanti, Maria Clorinda SoaresIn the experimental Trypanosoma vivax infection in Curraleiro Pé-Duro cattle, six healthy male cattle with a minimum age of eight to 12 months and an average body weight of 98 to 165 kg were used. The experiment was divided into three phases: adaptation (10 days), inoculation and post-inoculation (74 days) in order to evaluate physical, hematological, biochemical and parasitological parameters. The results of the physical evaluations indicated hypothermia in the initial and final phase of the evaluations and hyperthermia on the 22nd day after inoculation. There was bradycardia in the first 15 days and 45 days after inoculation, while bradypnea and hypomotility were detected throughout the evaluations. In erythrogram there was a reduction in red blood cells, hemoglobin, globular volume, mean corpuscular hemoglobin concentration (HCCM) and platelets characterizing a normocytic and hypochromic anemia. In the leukogram, leukopenia with neutropenia was identified. The bands, eosinophils, basophils, lymphocytes and monocytes did not differ because they were within the normal range. In the analysis of blood biochemistry data, changes were discrete and punctual for the following biochemical parameters: fibrinogen, total proteins, albumin, globulin, creatine kinase, glucose, creatinine, urea, total direct and indirect bilirubin. Aspartate aminotransferase activities decreased on days 18 to 60 post-inoculation and gama glutamyltransferase activities increased between days 67 and 74 post-inoculation, however, this increase was due to only two animals. Parasitaemia, diagnosed by the Woo method and quantified by the Brener method, showed to be intense in the early stage of the disease and throughout the evaluations there was a decrease in parasitaemia peaks, leading no calf to death. The cattle after experimental inoculation had mild and punctual symptoms and survived the acute phase of the disease, establishing signs of tolerance in relation to T. vivax.Item Principais causas da condenação de frango em matadouros frigoríficos do serviço de inspeção estadual de Goiás entre 2012-2018 e o impacto financeiro(Universidade Federal de Goiás, 2020-03-05) Ramos, Emanoel Tomé Regis; Haddad, João Paulo Amaral; http://lattes.cnpq.br/3673445041898307; Melo, Cristiano Barros de; http://lattes.cnpq.br/1686704472655874; Rezenda, Cíntia Silva Minafra e; http://lattes.cnpq.br/5841210447886226; Rezende, Cíntia Silva Minafra e; Andrade, Maria Auxiliadora; Souza, Maria Izabel AmaralBrazil's level of poultry production as the world's leading exporter and second largest producer of poultry meat is due to the joint efforts of the productive agents, the organization of the integrated system, investments in technology, among others that have contributed to increase trade, production and productivity. In 2018, the state of Goiás ranked first in production and export in the Midwest region. Even with this position in the national scenario, during post-mortem inspection in slaughterhouses the chickens are subject to partial or total carcass condemnation due to several factors that occur during the stages of rearing, pre-slaughter and slaughter. Among the problems identified in establishments registered with the State Inspection Service of Goiás generate financial losses, condemnations for bruising/fracture, dead on arrival, cellulite, contamination and dermatoses. In order to identify the main causes of condemnation and the financial impact, a literature review conducted through studies in different regions and establishments in Brazil with federal or state inspection. After this review, a retrospective study conducted, analyzing the main causes of the condemnation and the financial impact on slaughterhouses of the State Inspection Service of Goiás between 2012 and 2018 (partial). We identified 19 causes of condemnation of chicken with total 5,006,043 condemned birds, proportionally 85.10% (4,259,894 / 5,006,043) partially condemned and 14.90% (746,149 / 5,006,043) totally. Of the number of slaughtered chickens160,546,742 the index per total condemnation was 0.46 (746,149) and the partial 2.65 (4,259,894). The monetary value of the condemnations was estimated at R$15,998,921.32 (US$5,574,537.04).Item Comparação da eficácia de formulação carrapaticida aplicada em diferentes sistemas de pulverização para controle de Rhipicephalus microplus(Universidade Federal de Goiás, 2022-02-25) Moraes Junior, Nélio Roberto de; Lopes, Welber Daniel Zanetti; http://lattes.cnpq.br/4480577038117234; Teixeira, Weslen Fabrício Pires; http://lattes.cnpq.br/1222753642148629; Monteiro, Caio Márcio de Oliveira; http://lattes.cnpq.br/2496419306394657; Ferreira, Lorena Lopes; Marchesini, Paula Barroso Cruz; Monteiro, Caio Márcio de OliveiraThe present work compared the efficiency of three different equipment for acaricides application to control Rhipicephalus microplus. Two comparative experiments were performed. To compare the equipment, an acaricide containing three active ingredients (one pyrethroid and two organophosphate) was used. In experiment 1, three devices were tested: backpack sprayer (BS), high pressure sprayer (HPS) and automated sprayer (AS). In experiment 2, two devices were tested: BS and HPS. In both experiments, 10 bovines with similar tick burden were used. In day 0, both experiments, the animals were treated with the acaricide. On days +1 (only experiment 1), +3, +7, +14, +21, +28 and +35 (only experiment 2), ticks count was performed to determine the efficiency of control. The application time, pressure (KPa) and volume applied (L) in each spraying system were also evaluated. Adult immersion test (AIT) using three different acaricides based on pyrethroid and organophosphate was performed to compare the susceptibility of strains from each farm. In experiment 1, all treatments reduced significantly (p < 0.05) the number of ticks on animals, however, the HPS showed better efficacy of the acaricide since day +1. In experiment 2, both treatments reduced (p < 0.05) the tick burden, however the HPS resulted in more accentuated reduction. The application period was of 4.5, 150 e 330 seconds, while pressure was of 306.8, 4,826.3 and 172.4 – 220.6 KPa for AS, HPS and BS, respectively. In the AIT the observed efficacies were between 99.8 - 100% for the strain of the farm of the experiment 1, while were between 67.2 - 80.9% for the strain from the farm of experiment 2. We conclude the application device influences the efficiency of the acaricide. All three sprayers were efficient for acaricide application; the best efficiency was obtained using the HPS while the AS showed a reliable efficiency with lower application period and the strain of the farm of the experiment 1 was more susceptible for all acaricides tested.Item Descrição morfológica e radiográfica das articulações escapuloumeral e umerorradioulnar de tamanduá-bandeira (Myrmecophaga tridactyla-Linnaeus, 1758)(Universidade Federal de Goiás, 2021-07-30) Silva, Carolina Castro Lyra da; Cardoso, Júlio Roquete; http://lattes.cnpq.br/1710994249874447; Pfrimer, Gabriel de Abreu Pfrimer; http://lattes.cnpq.br/9312207784365232; Borges, Naida Cristina; http://lattes.cnpq.br/9181279951885005; Borges, Naida Cristina; Oliveira, Raquel de Souza Lemos de; Silva, Daniel Barbosa daThe giant anteater (Myrmecophaga tridactyla) has specialized thoracic limbs to forage by breaking the walls of anthills and termite mounds. They are also important for defense posture and locomotion. This study aimed to provide a morphological and radiographic description of the shoulder joint (SJ) and elbow joint (EJ) of the giant anteater. Both joints of 13 tamanduas were assessed by morphological dissections (n=26) and histological evaluation (n=2) and radiographies without (n = 14) and with (n=13) positive contrast. The radiographic projections selected to this study were the mediolateral and craniocaudal projections. The radiographic and anatomical findings were compared with the following results: the SJ had a continuous joint capsule with the tendon sheaths of the short head and long head of the biceps brachii muscle, which could be visualized with an injection of 3 ml of intra-articular contrast. The SJ arthrography was performed with the needle positioned cranially to the joint for contrast injection. The EJ presented three articular compartments, and the insertion of the joint capsule was proximal to the radial fossa and distal to the radial tuberosity in the radial notch of the ulna, which were possible to identify with 2 ml of intra-articular contrast. The EJ arthrography was performed with the needle positioned laterally to the joint for contrast injection. Moreover, the joint capsule presented an evagination like a caudomedial recess and cranial and caudal fat pads. No ligaments stabilizing the SJ and EJ were identified in the macroscopic and histological assessments. The morphological and radiological study provided relevant information on the soft-tissue characteristics of shoulder and elbow joints, which may aid clinical-surgical and diagnostic imaging procedures.Item Avaliação da biologia reprodutiva e histopatológica de fêmeas ingurgitadas de Rhipicephalus microplus submetidas a uma formulação contendo fipronil e fluazuron(Universidade Federal de Goiás, 2021-08-27) Vieira, Mirna Secchis; Lopes, Welber Daniel Zanetti; http://lattes.cnpq.br/4480577038117234; Arruda, Walquíria; http://lattes.cnpq.br/0103634776482485; Monteiro, Caio Márcio de Oliveira; http://lattes.cnpq.br/2496419306394657; Monteiro, Caio Márcio de Oliveira; Rocha, Thiago Lopes; Brito, Pedro Vale de AzevedoRhipicephalus microplus is an important ectoparasite inside cattle breeding in tropical, subtropical and temperate region in the world. This tick is responsible for pathogens transmission, inducing a cattle pathological condition that can lead to a drop in meat and milk productivity. The R. microplus represents a great importance regarding to livestock cost, thus it is important control this ectoparasite which is done almost exclusively with chemical acaricide. Currently, there are commercial formulations for R. microplus control that contain, associated or not, fipronil and fluazuron. However there isn`t any information regarding cytotoxic effects of these molecules on ticks. Research on morphological changes caused by these two products allows a better understanding of how these active ingredients act in different tick organs. Thus, the objective of this study was to evaluate the reproductive biology and histological effects of a commercial formulation, containing fipronil and fluazuron on the ovary of R. microplus engorged females. Three calves were infested with approximately 5.000 larvae on days -24, -21, -19, -17, -14, -12, -10, -7, -5 and -3, considering day 0, the treatment day. The treatment consisted on the application of a commercial acaricidal formulation with fipronil (1,25 %) and fluazuron (2,5%) (Tick Gard®- MSD Saúde Animal). Before application of acaricidal formulation, 20 engorged females, naturally detached form the cattle, were recovered, to form the control group. After application of the commercial formulation, engorged females naturally detached from the animals were collected on days +5, +10 and +20 for reproductive biology monitoring and on days +4, +12 and +20 for ovaries histology evaluation. The females collected for reproductive biology monitoring were kept in a climate-controlled chamber for oviposition, subsequently incubating these eggs, while the females used for histological analysis were kept in a climate-controlled chamber for 4 days and then dissected. In reproductive biology evaluation, it was observed that females from the treated groups produced a smaller amount of eggs (p<0.05) and these eggs had a lower viability (p<0.5) when compared to the control group. All treatment group had considerable morphological change. In the histological analysis, many alterations were observed in the oocytes of females from all treated groups, including irregularly shaped oocyte, irregularly shaped germinal vesicle, yolk granules reduction, yok granules vacuolization and oocyte disruption. It was also observed a smaller number of oocytes in all stages of development (I, II, III, IV and V) and a greater number of indeterminate oocytes on ovaries of females from the treated groups (p<0.05), when compared with the control group. From these results, it is possible to conclude that the commercial formulation containing fipronil and fluazuron affected the reproductive biology and caused histological alterations in the ovaries of engorged females of R. microplus, leading to a reduction in the number of oocytes.Item Descrição morfológica da glândula pineal de Alouatta belzebul(Universidade Federal de Goiás, 2021-03-04) Mascarenhas, Lucas José Santos; Pereira, Kleber Fernando; http://lattes.cnpq.br/4779531102983799; Vulcani, Valcinir Aloísio Scalla; http://lattes.cnpq.br/9821938265591545; Vulcani, Valcinir Aloísio Scalla; Franzo, Vanessa Soube; Saturnino, Klaus CasaroThe pineal gland in vertebrates produces a hormone, a melatonin, which is related to circadian control and other physiological behavioral functions, such as the reproductive cycle, thermoregulation and thermal tolerance. The present study aimed to describe the morphological, morphometric and histological aspects of the pineal of Alouatta belzebul. Seven brains of adult specimens of this species were studied, of which the location of the gland in relation to the surrounding brain structures was calculated and its length and width were measured. Then, histological slides were prepared and stained with hematoxylin-eosin and PAS. It was observed that the pineal of A. belzebul is located superiorly and cranially to the cerebellum and superiorly to the superior colliculi and below the splenium of the corpus callosum. In addition, it can be functional as subcalous. It had an average length of 2.6 mm and an average width of 1.14 mm. Histologically, the gland is composed of irregular cords of pinealocytes and gliocytes. Pinealocytes pair melanin-like pigments. It was concluded that a pineal gland in Alouatta belzebul has similar aspects with some primates and carnivores, mainly in the su