830 resultados para Diet in disease.


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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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Pós-graduação em Matematica Aplicada e Computacional - FCT

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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The ractopamine is a β-adrenergic agonist used as a divider of energy in diets for finishing pigs. However, research shows that this additive may effect on welfare and meat quality. In this context, the aim was to evaluate the influence in three levels of inclusion of ractopamine (0, 5 and 10ppm) in commercial pigs diet (castrated, males and females, n = 340) for 28 days pre-slaughter on the welfare and meat quality. The wellbeing was assessed by the behavior of animals, number of skin damages, carcass damages and physiological stress (lactate, cortisol and creatinine phosphokinase). The evaluation of meat quality was performed by analyzing pH, color, drip and cooking loss, shear force and marbling of the longissimus dorsi muscle of 90 selected pigs. There was no influence of treatments on the behavior, the total number of skin damages and carcass damages or concentration of cortisol and lactate. However, levels of the enzyme creatine phosphokinase (CPK) increased in pigs supplemented with ractopamine. This shows that, somehow, this additive led to physiological changes in animals that consumed it. PH and drip loss did not change by the addition of ractopamine in the diet. In contrast, the Longissimus dorsi of pigs that received ractopamine presented less intense red color and no difference was found in L* and b*. The inclusion of ractopamine in the diet reduced the degree of marbling, cooking loss and tenderness of the muscle. Supplementation did not lead to behavioral change, increased incidence of injury, plasma cortisol and lactate and minimal impact on meat quality. However, there was evidence that the animals fed the additive suffered physiological changes

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Pós-graduação em Zootecnia - FCAV

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Pós-graduação em Agronomia (Produção Vegetal) - FCAV

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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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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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The modeling technique is simple, useful and practical to calculate optimum nutrient density to maximize profit margins, using nonlinear programming by predictive broiler performance. To demonstrate the influence of the broiler price could interact with nutrient density, the experiment aimed to define the quadratic equations for consumption and weight gain, based on modeling, to be applied to nonlinear programming, according to sex (male and female) in the starter (1 to 21 days), grower (22 to 42 days) and finisher phases (43 to 56 days). The experimental design was a randomized, totaling 6 treatments [energy levels of 2800, 2900, 3000, 3100, 3200 and 3300kcal AME/kg with constant nutrient : AME (Apparent Metabolizable Energy)] with 4 replicates and 10 birds per plot, using the program free download PPFR Excel workbook for feed formulation (http://www.foa.unesp.br/downloads/file_detalhes.asp?CatCod=4&SubCatCod=138&FileCod=1677). Data from this trial confirmed that there was a significant relationship between feed intake and total energy consumption of the diet, in which feed intake was increased or decreased simply to keep the amount of energy, with a constant rate of nutrient : AME. Therefore, the data support that if the essential dietary nutrients are kept in proportion to the energy density of the diet, according to the appropriate requirements (male / female) of broilers, the weight and feed conversion are significantly (P<0.05) favored by increasing the energy density of the diet. Thus, it enables the application of models for maximum profit (nonlinear formulation), to estimate the proportion of weight gain most appropriate according to the price paid by the market.

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To treat periodontal disease is essential to establish a control in all etiological factors that cause destructive activity in periodontal tissues. Basic periodontal therapy may be applied to eliminate or/and to control all etiologic factors involved in disease development. In this paper, some aspects to stabilize advanced periodontal disease using basic periodontal therapy are analyzed and discussed.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)