efetividade da "multimistura" como suplemento de dietas deficientes em vitaminas e/ou minerais na recuperação ponderal de ratos submetidos à desnutrição pós-natal the effectiveness of the "multi-mixture" as supplement to mineral and/or vitamin deficient diets, promoting weight gain in rats submitted to post-natal under-nourishment

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2005
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Abstract
OBJETIVO: Avaliar a efetividade da "multimistura", usada como suplemento de dietas deficientes em vitaminas, deficientes em minerais, ou deficientes em vitaminas e minerais, na recuperação ponderal de ratos desnutridos. MÉTODOS: Após o desmame, 56 ratos Wistar, submetidos à desnutrição pós-natal, foram aleatoriamente distribuídos em 7 grupos diferenciados segundo o tipo de dieta oferecida: controle, dietas deficientes em vitaminas, deficientes em minerais, deficientes em vitaminas e minerais e os grupos cujas dietas deficientes eram suplementadas com a "multimistura" (dietas deficientes em vitaminas + "multimistura", deficientes em minerais + "multimistura" e deficientes em vitaminas e minerais + "multimistura"). A "multimistura" (pó de casca de ovo, pó de folha de mandioca e farelo de trigo, na proporção de 1:1.8) foi adicionada ao nível de 4%. O ganho ponderal e os Coeficientes de Eficiência Protéica ou alimentar foram usados como indicadores da efetividade da "multimistura" como suplemento de vitaminas e/ou minerais. RESULTADOS: Após 28 dias, todos os grupos apresentaram valores de ganho ponderal, coeficientes de eficiência protéica, e coeficientes de eficiência alimentar, inferiores aos do grupo controle (p<0,05), exceto aquele que recebeu dietas deficientes em vitaminas + "multimistura". O grupo que recebeu dieta deficiente em minerais apresentou os piores resultados. A suplementação dessa dieta com a "multimistura" determinou a obtenção de valores significantemente superiores, mas aquém daqueles observados no grupo controle. CONCLUSÃO: Esses resultados sugerem que a suplementação de dietas pouco nutritivas com a "multimistura", fornece as necessidades de vitaminas de ratos desnutridos e supre apenas parte das necessidades de minerais desses animais.
OBJECTIVE: To investigate the effectiveness of the "multi-mixture", consisting of powdered eggshell, powdered cassava leaf and wheat bran (1:1:8), as a vitamin and/or mineral supplement in the promotion of weight gain in undernourished rats. METHODS: After weaning, 56 Wistar rats which had been submitted to under-nutrition since birth, were divided randomly into 7 groups, according to the diet supplied, namely: control, vitamin deficient, mineral deficient, vitamin and mineral deficient, vitamin deficient supplemented with "multi-mixture", mineral deficient supplemented with "multi-mixture", and vitamin and mineral deficient supplemented with "multi-mixture". The recorded weight gains during the treatment period, together with the protein efficiency ratios and the food efficiency ratios, were taken as indicators of the efficiency of "multi-mixture" as a vitamin and/or mineral supplement. RESULTS: After 28 days, gains in body weight and the values of protein efficiency ratios and food efficiency ratios were significantly lower (p<0.05) than those of the control group for all treatment groups except for that fed on vitamin deficient supplemented with "multi-mixture". The lowest indicator levels were observed in the group fed on mineral deficient: supplementation of this diet with "multi-mixture" lead to significant improvements in weight gain, protein efficiency ratios and food efficiency ratios, but to values still below those obtained for the control group. CONCLUSION: The results suggest that supplementation with "multi-mixture" of diets low in nutritional value can provide the required vitamins, but only part of the mineral requirements of undernourished rats.
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Authors ;Haroldo da Silva Ferreira;Monica Lopes de Assunção;Adijane Oliveira Santos de França;Eliana Paiva Cunha Cardoso;Fabiana Andréa Moura
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Year 2005
DOI
10.1590/S1415-52732005000100006
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