167 resultados para Animal
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The theme of this project is the animal world, focusing on Bauru. The magazine Bauru Animal was born from the lack of publications addressing the issue of animals under the focus of their rights in this county. The treatment we give to animals is an important ethical and moral issue that should be discussed by the press. In Bauru there is an animal protection movement, whether organized or independent people. And there are many problems about the animals. The intent of the magazine is to report the status of animals in the city, checking legislation and getting into the philosophical field: we have the right to treat animals as mere environmental and economic resource? For the preparation of the materials were performed several interviews, documented in audio files and performed with the authors' theoretical Cremilda Medina and José Carlos Sebe Bom Meihy. The animal issue is cross-cutting issue that involves all traditional media editorials and allows public bodies to discuss assignments, ethical, moral and legal, the role of the citizen in society and many other issues relevant to the media
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In the pre-slaughter management of pigs there are stressors, which depending on the duration or severity, are able to alter the quality of meat. One of the factors considered critical to the welfare is the fasting period in the farm. This practice is fundamental and proven relevance in the production chain. Besides the effects on meat quality and welfare of pigs, fasting is among the main factors responsible for the incidence of skin lesions, can significantly influence the incidence of esophagogastric ulcers and is also important to avoid any contamination of carcasses by gastrointestinal contents. When fasting is done right, it has a positive impact on welfare, meat quality and conditions of welfare during the pre-slaughter management of pigs
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Atualmente existe um consenso de que os pesquisadores estão mais conscientes em relação ao trato com as cobaias e com o bem estar animal, ao mesmo tempo, sabe-se que os comitês de ética recentes estão intensificando a fiscalização dos laboratórios. Há também leis a respeito do trato com os animais utilizados para experimentação que conta com penas, como multas em dinheiro até a exoneração do cargo de cientista e pesquisador. Investigaram-se os pesquisadores, através de um questionário, se estão mais conscientes acerca do bem estar animal ou apenas se adéquam as diretrizes dos comitês de ética para que seu projeto seja aprovado. Além de notarmos diferenças significativas entre os pesquisadores anteriores e posteriores a Lei 11.794/08 que instituiu os comitês de ética. Tendo os mais novos uma sistematização maior no trato com as cobaias enquanto os antigos repensaram suas formas de pesquisa. Quanto ao bem estar animal, nota-se que apenas se adequaram às leis, e que caso as mesmas não houvessem sido criadas não fariam alterações em seus laboratórios
Fitase em dietas para frangos de corte - melhor desempenho e sustentabilidade para a produção animal
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O presente trabalho de conclusão de curso é composto por uma revisão bibliográfica sobre a fitase e um relatório sobre o estágio supervisionado realizado na BRF S. A. em Rio Verde/GO. A busca por medidas de sustentabilidade, e a preocupação das indústrias e granjas avícolas com o meio ambiente ligadas ao fator econômico torna a utilização da fitase cada vez mais difundida entre a avicultura moderna. O uso da suplementação enzimática com fitase nas dietas dos frangos de corte diminui a necessidade de utilizar fontes inorgânicas de fósforo, reduzindo os custos com a produção das rações. A fitase também beneficia as aves com uma maior biodisponibilidade de macro e micronutrientes, por hidrolisar o ácido fítico. A utilização da fitase pode ser um adjuvante nas dietas para frangos de corte em diferentes fases de criação, melhorando índices zootécnicos e contribuindo para a redução da poluição ambiental por reduzir elementos como o fósforo e o nitrogênio das excretas das aves
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Periodontitis is an infectious disease characterized by chronic inflammation of the periodontium, and it is mediated and modulated by the host immune system. In the presence of microorganisms or other antigens, immune cells (macrophages/monocytes, dendritic cells, lymphocytes, neutrophils), endothelial cells and fibroblasts secrete cytokines and trigger immune and inflammatory reactions. However, when synthesized at high levels, cytokines modify the pattern of cellular response, participating substantially in the development of chronic inflammatory pathologies, such as periodontal disease. Understanding the origin and progression of bone resorption is one of the primary goals of the field of periodontics, aiming to arrest the disease progression and to optimize future treatments. For this purpose, the development of experimental models is an important and necessary step before entering into clinical trials with new therapies. The purpose of this study is to characterize/evaluate the tissue changes induced by various models of experimental periodontitis through a literature review.
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Embryonic chimerism is generally used in basic research and in vivo diagnosis of undifferentiated embryonic stem cells (ESC), mostly using mice embryos, although there have been reports in the literature on using rat, rabbit, sheep, chicken, primate, bovine, goat and pig embryos. Several techniques can currently be used to produce chimeric embryos, including microinjection, co-culture with ESC, fusion and aggregation. Although microinjection is the most commonly used method in mice, the mere aggregation of embryos with ESC may result in viable chimeras and be as efficient as microinjection. In mice, this chimerism technique has been shown to have the advantage of aggregating embryos in different stages of development with different ploidy, in addition to using ESC in the tetraploid complementation assay. Compared to other techniques for producing chimeras, the aggregation technique is a cheaper, faster and easier methodology to be performed. Moreover, aggregation can be simplified by chemically removing the zona pellucida with pronase or acidic Tyrode’s solution and be enhanced by using the Well of the Well culture system in combination with adhesion molecules, such as phytohemagglutinin. The most commonly used stages for chimerism by aggregation are those that precede the full compaction of the morula. In these stages, embryos have low-tension adherent junctions at the tangential point between two blastomeres. During the embryonic development of mice, the inner cell mass differentiates into epiblast and hypoblast. These layers will originate the fetal tissues and a portion of the extraembryonic tissues (yolk sac, allantois and amnion), whereas the trophectoderm (TE) gives rise to the chorion. A functional TE is essential for the complex molecular communications that occur between the embryo and the uterus. Embryos produced by somatic cell nuclear transfer, such as commercial cattle clones or endangered species, are subject to large fetal and neonatal losses. Hence embryo complementation with heterologous TE could be of assistance to decrease these losses and might as well assist development of high-value embryos in other approaches.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The aim of this study was to know the behavior of Santa Inês ewes in different physiological stages during the pre-slaughter management, as well as their body weight loss, blood hematocrit values and meat quality. 21 discard ewes were used, arranged into the following treatments: T1 = ewes which remained in lactation for 60 days with their respective lambs and slaughtered one day after weaning; T2 = ewes which remained in lactation for 60 days with their respective lambs and one more period of approximately 30 days without the lambs and afterwards slaughtered; and T3 = ewes which remained in confinement for 60 days and did not give birth during the year. The weight of ewes after transportation was lower for T1 in comparison with T2. Blood hematocrit values of ewes before and after transportation and after fast in the waiting pen were not different among the treatments, with mean value of 58.50%. We concluded that the quality of meat of discard ewes in different physiological stages is not altered by pre-slaughter management, when correctly performed (avoiding animal stress), concerning meat pH.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Animal by-product meals have large variability in crude protein (CP) content and digestibility. In vivo digestibility procedures are precise but laborious, and in vitro methods could be an alternative to evaluate and classify these ingredients. The present study reports prediction equations to estimate the CP digestibility of meat and bone meal (MBM) and poultry by-product meal (PM) using the protein solubility in pepsin method (PSP). Total tract CP digestibility of eight MBM and eight PM samples was determined in dogs by the substitution method. A basal diet was formulated for dog maintenance, and sixteen diets were produced by mixing 70 % of the basal diet and 30 % of each tested meal. Six dogs per diet were used to determine ingredient digestibility. In addition, PSP of the MBM and PM samples was determined using three pepsin concentrations: 0·02, 0·002 and 0·0002 %. The CP content of MBM and PM ranged from 39 to 46 % and 57 to 69 %, respectively, and their mean CP digestibility by dogs was 76 (2·4) and 85 (2·6) %, respectively. The pepsin concentration with higher Pearson correlation coefficients with the in vivo results were 0·0002 % for MBM (r 0·380; P = 0·008) and 0·02 % for PM (r 0·482; P = 0·005). The relationship between the in vivo and in vitro results was better explained by the following equations: CP digestibility of MBM = 61·7 + 0·2644 × PSP at 0·0002 % (P = 0·008; R (2) 0·126); and CP digestibility of PM = 54·1 + 0·3833 × PSP at 0·02 % (P = 0·005; R (2) 0·216). Although significant, the coefficients of determination were low, indicating that the models were weak and need to be used with caution.
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Pós-graduação em Medicina Veterinária - FMVZ