Mostrando recursos 1 - 20 de 116

  1. Prepartum progestagen supplementation in swine : a strategy to facilitate piglet care and prevent early parturition

    Mellagi, Ana Paula Gonçalves; Bortolozzo, Fernando Pandolfo; Haas, Cristina Sangoi; Santos, Monike Quirino dos; Rovani, Monique Tomazele; Santos, Joabel Tonellotto dos; Gasperin, Bernardo Garziera; Goncalves, Paulo Bayard Dias
    Gestation length in swine has a considerable amplitude and both early and delayed parturition are common. This variation increases the occurrence of unassisted farrowing and could lead to a wide-ranging age at weaning for piglets born from one batch. Supervision of sow parturition is crucial to reduce mortality of neonate piglets. To facilitate assistance, induction of farrowing using prostaglandin F2α (PGF) has been widely used in batch farrowing systems, whereby synchronization would concentrate the time of farrowing, allowing for better organization of employees. However, a viable alternative method that can be implemented to manage farrowing is to sustain high progestagen...

  2. Prepartum progestagen supplementation in swine : a strategy to facilitate piglet care and prevent early parturition

    Mellagi, Ana Paula Gonçalves; Bortolozzo, Fernando Pandolfo; Haas, Cristina Sangoi; Santos, Monike Quirino dos; Rovani, Monique Tomazele; Santos, Joabel Tonellotto dos; Gasperin, Bernardo Garziera; Goncalves, Paulo Bayard Dias
    Gestation length in swine has a considerable amplitude and both early and delayed parturition are common. This variation increases the occurrence of unassisted farrowing and could lead to a wide-ranging age at weaning for piglets born from one batch. Supervision of sow parturition is crucial to reduce mortality of neonate piglets. To facilitate assistance, induction of farrowing using prostaglandin F2α (PGF) has been widely used in batch farrowing systems, whereby synchronization would concentrate the time of farrowing, allowing for better organization of employees. However, a viable alternative method that can be implemented to manage farrowing is to sustain high progestagen...

  3. Atividade florestal e o desenvolvimento socioeconômico em Três Lagoas e Região : uma análise baseada na abordagem de cluster

    Tisott, Sirlei Tonello; Schmidt, Veronica; Waquil, Paulo Dabdab
    O cluster de celulose e papel em Três Lagoas-MS, ainda que em estágio embrionário, é importante para o desenvolvimento, provocando mudanças quantitativas e condições que potencializam a prosperidade e o desenvolvimento da região, visto que a atividade florestal tornou-se uma das melhores alternativas para o crescimento econômico local. O artigo tem por objetivo analisar a importância e os efeitos da atividade florestal para o mercado de trabalho e para a economia local e regional de Três Lagoas-MS. Este contexto foi explorado a partir de dados secundários e primários, assumindo o método misto de investigação, com dados qualitativos e quantitativos. Os...

  4. Atividade florestal e o desenvolvimento socioeconômico em Três Lagoas e Região : uma análise baseada na abordagem de cluster

    Tisott, Sirlei Tonello; Schmidt, Veronica; Waquil, Paulo Dabdab
    O cluster de celulose e papel em Três Lagoas-MS, ainda que em estágio embrionário, é importante para o desenvolvimento, provocando mudanças quantitativas e condições que potencializam a prosperidade e o desenvolvimento da região, visto que a atividade florestal tornou-se uma das melhores alternativas para o crescimento econômico local. O artigo tem por objetivo analisar a importância e os efeitos da atividade florestal para o mercado de trabalho e para a economia local e regional de Três Lagoas-MS. Este contexto foi explorado a partir de dados secundários e primários, assumindo o método misto de investigação, com dados qualitativos e quantitativos. Os...

  5. Identification of foot and mouth disease risk areas using a multi-criteria analysis approach

    Santos, Diego Viali dos; Silva, Gustavo de Sousa e; Weber, Eliseu Jose; Hasenack, Heinrich; Groff, Fernando Henrique Sautter; Todeschini, Bernardo; Borba, Mauro Riegert; Medeiros, Antonio Augusto Rosa; Leotti, Vanessa Bielefeldt; Canal, Cláudio Wageck; Corbellini, Luis Gustavo
    Foot and mouth disease (FMD) is a highly infectious disease that affects cloven-hoofed livestock and wildlife. FMD has been a problem for decades, which has led to various measures to control, eradicate and prevent FMD by National Veterinary Services worldwide. Currently, the identification of areas that are at risk of FMD virus incursion and spread is a priority for FMD target surveillance after FMD is eradicated from a given country or region. In our study, a knowledge-driven spatial model was built to identify risk areas for FMD occurrence and to evaluate FMD surveillance performance in Rio Grande do Sul state,...

  6. Identification of foot and mouth disease risk areas using a multi-criteria analysis approach

    Santos, Diego Viali dos; Silva, Gustavo de Sousa e; Weber, Eliseu Jose; Hasenack, Heinrich; Groff, Fernando Henrique Sautter; Todeschini, Bernardo; Borba, Mauro Riegert; Medeiros, Antonio Augusto Rosa; Leotti, Vanessa Bielefeldt; Canal, Cláudio Wageck; Corbellini, Luis Gustavo
    Foot and mouth disease (FMD) is a highly infectious disease that affects cloven-hoofed livestock and wildlife. FMD has been a problem for decades, which has led to various measures to control, eradicate and prevent FMD by National Veterinary Services worldwide. Currently, the identification of areas that are at risk of FMD virus incursion and spread is a priority for FMD target surveillance after FMD is eradicated from a given country or region. In our study, a knowledge-driven spatial model was built to identify risk areas for FMD occurrence and to evaluate FMD surveillance performance in Rio Grande do Sul state,...

  7. Vascular injury in spontaneous subacute toxicosis caused by organic arsenic in cattle

    Cruz, Raquel Aparecida Sales da; Reis, Matheus de Oliveira; Gonçalves, Maiara Aline; Sonne, Luciana; Pavarini, Saulo Petinatti; Driemeier, David
    Monosodium methanearsonate (MSMA) is an organic form of arsenic present in the formulations of some herbicides. Accidental ingestion of pasture contaminated with arsenic may lead to toxicosis in cattle. Almost 200 head of cattle maintained in an area sprayed with MSMA presented with intense diarrhea and dehydration after grazing. Subsequently, 16 of these animals died. Toxic levels of arsenic (>1.5μg/g) were detected in the kidney, liver, urine, and skeletal muscle of 6 animals. At gross inspection were observed multifocal to coalescent ulcers in the mucosa from on the forestomachs associated with hemorrhagic areas and marked wall edema. Microscopic examination mainly...

  8. Vascular injury in spontaneous subacute toxicosis caused by organic arsenic in cattle

    Cruz, Raquel Aparecida Sales da; Reis, Matheus de Oliveira; Gonçalves, Maiara Aline; Sonne, Luciana; Pavarini, Saulo Petinatti; Driemeier, David
    Monosodium methanearsonate (MSMA) is an organic form of arsenic present in the formulations of some herbicides. Accidental ingestion of pasture contaminated with arsenic may lead to toxicosis in cattle. Almost 200 head of cattle maintained in an area sprayed with MSMA presented with intense diarrhea and dehydration after grazing. Subsequently, 16 of these animals died. Toxic levels of arsenic (>1.5μg/g) were detected in the kidney, liver, urine, and skeletal muscle of 6 animals. At gross inspection were observed multifocal to coalescent ulcers in the mucosa from on the forestomachs associated with hemorrhagic areas and marked wall edema. Microscopic examination mainly...

  9. Canine rangeliosis: A rare case of hyperparasitemia in the acute phase

    Martins, Danieli Brolo; Silva, Aleksandro Schafer da; Oliveira, Evelyn de; Labruna, Marcelo Bahia; Soares, João Fábio
    Background: R. vitalii causes a remerging tick-borne disease known as rangeliosis. The parasite is not always identifiable in blood smears, especially in the chronic phase of the disease. Low parasitemia levels have been observed in cases of rangeliosis caused by natural infection, even in acute situations, while hyperparasitemia has been reported only in acute experimental infection. This paper describes an unusual case of acute natural R. vitalii infection with hyperparasitemia. Case: The dog (a 12-year-old male German Shepherd) had presented apathy, dyschezia and hyporexia for three days prior to seeing the veterinarian, whose examination revealed discrete pale mucous membranes, soft...

  10. Canine rangeliosis: A rare case of hyperparasitemia in the acute phase

    Martins, Danieli Brolo; Silva, Aleksandro Schafer da; Oliveira, Evelyn de; Labruna, Marcelo Bahia; Soares, João Fábio
    Background: R. vitalii causes a remerging tick-borne disease known as rangeliosis. The parasite is not always identifiable in blood smears, especially in the chronic phase of the disease. Low parasitemia levels have been observed in cases of rangeliosis caused by natural infection, even in acute situations, while hyperparasitemia has been reported only in acute experimental infection. This paper describes an unusual case of acute natural R. vitalii infection with hyperparasitemia. Case: The dog (a 12-year-old male German Shepherd) had presented apathy, dyschezia and hyporexia for three days prior to seeing the veterinarian, whose examination revealed discrete pale mucous membranes, soft...

  11. Haemorrhagic myelomalacia in a cat with extradural T-cell lymphoma

    Oliveira, Eduardo Conceição de; Rolim, Veronica Machado; Negreiros, Daiane de Oliveira; Driemeier, David; Pavarini, Saulo Petinatti
    Myelomalacia is a term used to indicate the softening of the spinal cord, which results from ischaemic or haemorrhagic necrosis that can occur as a sequel to acute spinal cord injury. A 10-month-old, female, mixed breed domestic cat exhibiting neurological symptoms was referred for evaluation. Neurological examination revealed symptoms consistent with thoracolumbar syndrome. Initial radiographic examination detected no changes of the thoracolumbar spine. The cat received a palliative treatment with tramadol hydrochloride and prednisolone. The patient did not respond to the treatment and one month later presented with worsening of symptoms that progressed to non-ambulatory paraplegia. Radiographic examination was performed...

  12. Haemorrhagic myelomalacia in a cat with extradural T-cell lymphoma

    Oliveira, Eduardo Conceição de; Rolim, Veronica Machado; Negreiros, Daiane de Oliveira; Driemeier, David; Pavarini, Saulo Petinatti
    Myelomalacia is a term used to indicate the softening of the spinal cord, which results from ischaemic or haemorrhagic necrosis that can occur as a sequel to acute spinal cord injury. A 10-month-old, female, mixed breed domestic cat exhibiting neurological symptoms was referred for evaluation. Neurological examination revealed symptoms consistent with thoracolumbar syndrome. Initial radiographic examination detected no changes of the thoracolumbar spine. The cat received a palliative treatment with tramadol hydrochloride and prednisolone. The patient did not respond to the treatment and one month later presented with worsening of symptoms that progressed to non-ambulatory paraplegia. Radiographic examination was performed...

  13. Minimum alveolar concentration of isoflurane in dogs administered two morphine doses

    Izidoro, Karina Coelho; Monteiro, Eduardo Raposo; Bressan, Thais Feres; Monteiro, Betânia Souza; Campagnol, Daniela; Alievi, Marcelo Meller
    This study aimed to evaluate the effects of intramuscular 0.5mg kg-1 (MOR0.5) and 1.0mg kg-1 (MOR1.0) morphine premedication on the minimum alveolar concentration of isoflurane (ISOMAC) in dogs. Eighteen client-owned female dogs were scheduled for elective ovariohysterectomy. Dogs received intramuscular MOR0.5 or MOR1.0 as premedication and propofol IV for induction of anesthesia. Isoflurane was delivered for maintenance of anesthesia and dogs were maintained under normocapnia and normothermia. Determinations of the ISOMAC were conducted by use of the “up-and-down” method. Noxious stimulus (placement of Backhaus towel clamps, a midline skin incision and subcutaneous tissue dissection) was delivered approximately 50 minutes after...

  14. Minimum alveolar concentration of isoflurane in dogs administered two morphine doses

    Izidoro, Karina Coelho; Monteiro, Eduardo Raposo; Bressan, Thais Feres; Monteiro, Betânia Souza; Campagnol, Daniela; Alievi, Marcelo Meller
    This study aimed to evaluate the effects of intramuscular 0.5mg kg-1 (MOR0.5) and 1.0mg kg-1 (MOR1.0) morphine premedication on the minimum alveolar concentration of isoflurane (ISOMAC) in dogs. Eighteen client-owned female dogs were scheduled for elective ovariohysterectomy. Dogs received intramuscular MOR0.5 or MOR1.0 as premedication and propofol IV for induction of anesthesia. Isoflurane was delivered for maintenance of anesthesia and dogs were maintained under normocapnia and normothermia. Determinations of the ISOMAC were conducted by use of the “up-and-down” method. Noxious stimulus (placement of Backhaus towel clamps, a midline skin incision and subcutaneous tissue dissection) was delivered approximately 50 minutes after...

  15. In vitro evaluation of essential oils derived from Piper nigrum (Piperaceae) and Citrus limonum (Rutaceae) against the tick Rhipicephalus (Boophilus) microplus (Acari: Ixodidae)

    Vinturelle, Rafaelle; Mattos, Camila; Meloni, Jéssica Siqueira; Nogueira, Jeane Andréia Pedrosa; Nunes, Maria Julia da Silva; Vaz Junior, Itabajara da Silva; Rocha, Leandro; Lione, Viviane de Oliveira Freitas; Castro, Helena Carla; Chagas, Evelize Folly das
    The present research aimed to study the chemical composition and acaricidal activity of Citrus limonum and Piper nigrum essential oils against the cattle tick Rhipicephalus microplus. GC-MS analysis of C. limonum essential oil showed limonene (50.3%), -pinene (14.4%), and -terpinene (11.7%) as the major components; P. nigrum oil was mainly composed of -caryophyllene (26.2%), - ocymene (5.8%), and -pinene (5.5%).Acaricide activity was evaluated at concentrations of 2.5, 5.0, and 10.0% (v/v) of each plant oil, as well as 1 : 1 combination of both oils (5%: 5%, 2.5%: 2.5%, and 1.25%: 1.25%each), by immersing engorged R.microplus females for oneminute.The LC90...

  16. In vitro evaluation of essential oils derived from Piper nigrum (Piperaceae) and Citrus limonum (Rutaceae) against the tick Rhipicephalus (Boophilus) microplus (Acari: Ixodidae)

    Vinturelle, Rafaelle; Mattos, Camila; Meloni, Jéssica Siqueira; Nogueira, Jeane Andréia Pedrosa; Nunes, Maria Julia da Silva; Vaz Junior, Itabajara da Silva; Rocha, Leandro; Lione, Viviane de Oliveira Freitas; Castro, Helena Carla; Chagas, Evelize Folly das
    The present research aimed to study the chemical composition and acaricidal activity of Citrus limonum and Piper nigrum essential oils against the cattle tick Rhipicephalus microplus. GC-MS analysis of C. limonum essential oil showed limonene (50.3%), -pinene (14.4%), and -terpinene (11.7%) as the major components; P. nigrum oil was mainly composed of -caryophyllene (26.2%), - ocymene (5.8%), and -pinene (5.5%).Acaricide activity was evaluated at concentrations of 2.5, 5.0, and 10.0% (v/v) of each plant oil, as well as 1 : 1 combination of both oils (5%: 5%, 2.5%: 2.5%, and 1.25%: 1.25%each), by immersing engorged R.microplus females for oneminute.The LC90...

  17. Equine nasopharyngeal cryptococcoma due to Cryptococcus gattii

    Cruz, Raquel Aparecida Sales da; Reis, Matheus de Oliveira; Leite Filho, Ronaldo Viana; Gonçalves, Maiara Aline; Spanamberg, Andréia; Sonne, Luciana; Ferreiro, Laerte; Pavarini, Saulo Petinatti; Driemeier, David
    Cryptococcus gattii is often associated with pulmonary and systemic infections in humans and animals. In this research we report a case of nasopharyngeal cryptococoma caused by C. gatti in an equine. A 10-year-old mare presented a mass obstructing the oropharynx. Macroscopically the mass was asymmetric, and was attached to the ethmoidal sinuses and obstructed the oropharynx. Histopathological examination of the mass revealed multiple yeast cells ranging from spherical to oval, 4-8μm in diameter, with some of them showing narrow base polar budding. Cryptococcus gattii growth in mycological culture (Sabouraud Dextrose Agar) and was L-canavanine-glycine-bromothymol blue Agar positive. The molecular identification...

  18. Equine nasopharyngeal cryptococcoma due to Cryptococcus gattii

    Cruz, Raquel Aparecida Sales da; Reis, Matheus de Oliveira; Leite Filho, Ronaldo Viana; Gonçalves, Maiara Aline; Spanamberg, Andréia; Sonne, Luciana; Ferreiro, Laerte; Pavarini, Saulo Petinatti; Driemeier, David
    Cryptococcus gattii is often associated with pulmonary and systemic infections in humans and animals. In this research we report a case of nasopharyngeal cryptococoma caused by C. gatti in an equine. A 10-year-old mare presented a mass obstructing the oropharynx. Macroscopically the mass was asymmetric, and was attached to the ethmoidal sinuses and obstructed the oropharynx. Histopathological examination of the mass revealed multiple yeast cells ranging from spherical to oval, 4-8μm in diameter, with some of them showing narrow base polar budding. Cryptococcus gattii growth in mycological culture (Sabouraud Dextrose Agar) and was L-canavanine-glycine-bromothymol blue Agar positive. The molecular identification...

  19. Intoxicação por Senecio brasiliensis em bezerros: padrão e evolução de lesões hepáticas

    Panziera, Welden; Gonçalves, Maiara Aline; Oliveira, Luiz Gustavo Schneider; Lorenzett, Marina P.; Reis, Matheus de Oliveira; Hammerschmitt, Marcia Elisa; Pavarini, Saulo Petinatti; Driemeier, David
    Poisoning by Senecio spp. plants are an important cause of death in cattle in the State of Rio Grande do Sul, Brazil. It is estimated that over 50% of deaths caused by toxic plants are due to the ingestion of Senecio spp. The epidemiological, clinical and anatomopathological aspects of a spontaneous outbreak of Senecio brasiliensis in calves are described here. Characterization and evolution of liver lesions during the outbreak are also described. Two hundred and six 4-month-old female calves were weaned and placed in a 25-hectare pasture heavily infested by S. brasiliensis at of varying growth stages. The calves remained...

  20. Intoxicação por Senecio brasiliensis em bezerros: padrão e evolução de lesões hepáticas

    Panziera, Welden; Gonçalves, Maiara Aline; Oliveira, Luiz Gustavo Schneider; Lorenzett, Marina P.; Reis, Matheus de Oliveira; Hammerschmitt, Marcia Elisa; Pavarini, Saulo Petinatti; Driemeier, David
    Poisoning by Senecio spp. plants are an important cause of death in cattle in the State of Rio Grande do Sul, Brazil. It is estimated that over 50% of deaths caused by toxic plants are due to the ingestion of Senecio spp. The epidemiological, clinical and anatomopathological aspects of a spontaneous outbreak of Senecio brasiliensis in calves are described here. Characterization and evolution of liver lesions during the outbreak are also described. Two hundred and six 4-month-old female calves were weaned and placed in a 25-hectare pasture heavily infested by S. brasiliensis at of varying growth stages. The calves remained...

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