relação do zinco e cobre plasmáticos com componentes nutricionais e desempenho de leitões: uma meta-análise relation of plasma zinc and copper with nutritional components and performance of weanling pigs: a meta-analysis

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ID: 172259
2008
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Abstract
Foi realizada uma meta-análise para estudar a relação do zinco (Zn) e cobre (Cu) plasmáticos com os nutrientes da dieta e ganho de peso em leitões. A base de dados contemplou 18 publicações. As variáveis nutricionais consideradas na análise foram ingestões de PB, lisina, Ca, P, Cu e Zn. Foram realizadas análises de regressão por intermédio de modelos mistos. O Zn plasmático foi influenciado pelo P, Zn ingeridos e Cu plasmático. O P ingerido e Cu plasmático afetaram negativamente o Zn plasmático. A análise de regressão mostrou que, para cada grama de P total ingerido/kg PV0,6, houve redução de 0,043 mg/L de Zn plasmático. O Cu plasmático foi influenciado pelo Ca, P, Cu e o Zn ingerido. O Ca e Zn ingerido afetaram negativamente o Cu plasmático. O ganho de peso foi influenciado pela PB, Ca, lisina e Cu ingeridos e o Zn plasmático. O Zn ingerido apresentou efeito negativo no metabolismo do Cu, mas o Zn plasmático teve influência positiva no ganho de peso. Neste estudo de meta-análise, identificaram-se alguns fatores de origem dietética, como o P e Ca, que influenciam negativamente a absorção e o metabolismo de Zn e Cu em leitões.
A meta-analysis was carried out to study the relationship among plasma Zn and Cu with diet nutrients and piglets weight gain. Eighteen publications were considered in the database. The intake of CP, lysine, Ca, P, Cu and Zn was considered as variable in the analysis. Regression analyses were used through mixed models. Plasma Zn was affected by P and Zn intake as well as Cu plasma. P intake and plasma Cu affected negatively plasmatic Zn. The regression analysis showed that for each gram of total P intake/kg BW0.6 there was reduction in 0.043 mg/L of plasmatic Zn. Plasma Cu was affected by Ca, P, Cu and Zn intake. Ca and Zn intake affected negatively plasma Cu. Weight gain was affected by CP, Ca, lysine and Cu intake as well as plasma Zn. A negative effect of Zn intake on Cu metabolism was observed; however plasma Zn had a positive effect on piglets weight gain. This meta-analysis study identified some factors of dietary origin, as P and Ca, which influence negatively the absorption and the metabolism of Zn and Cu in weanling pigs.
Reference Key
hauschild2008revistarelao Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Luciano Hauschild;Paulo Alberto Lovatto;Amanda d'Ávila Carvalho;Ines Andretta;Cheila Roberta Lehnen
Journal european journal of lipid science and technology
Year 2008
DOI
10.1590/S1516-35982008000300007
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008000300007
Keywords
metabolism mixed models metabolismo nutrientsanimal culture

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