2000
DOI: 10.2527/2000.7841010x
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Growth promotion effects and plasma changes from feeding high dietary concentrations of zinc and copper to weanling pigs (regional study).

Abstract: An experiment was conducted to determine the effect of high dietary intakes of Zn and Cu and their combination on growth performance of weanling pigs with diverse health status and management strategies. Twelve experiment stations cooperated and used a total of 1,356 pigs that averaged 6.55 kg BW and 22.2 d age at weaning. The four dietary treatments, all of which met or exceeded NRC requirements, were 1) control, 2) 3,000 ppm Zn (from Zn oxide), 3) 250 Cu ppm (from Cu sulfate), or 4) 3,000 ppm Zn and 250 ppm … Show more

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Cited by 220 publications
(179 citation statements)
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References 13 publications
(21 reference statements)
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“…This finding is supported by data on the use of zinc in fertilizers and livestock feeds, particularly in weanling and nursery pigs (initially about 2,975 ppm, later reduced to 83 ppm before sending to market) to increase market production. 15 ' 37,38 Breeding (gestation and lactation) sows are also exposed to 150 g/t of zinc in their feed. 38 These practices pose a concern for the emergence of resistance to metals such as zinc and cadmium in organisms of livestock origin.…”
Section: Discussionmentioning
confidence: 99%
“…This finding is supported by data on the use of zinc in fertilizers and livestock feeds, particularly in weanling and nursery pigs (initially about 2,975 ppm, later reduced to 83 ppm before sending to market) to increase market production. 15 ' 37,38 Breeding (gestation and lactation) sows are also exposed to 150 g/t of zinc in their feed. 38 These practices pose a concern for the emergence of resistance to metals such as zinc and cadmium in organisms of livestock origin.…”
Section: Discussionmentioning
confidence: 99%
“…A concentração de Cu no fígado (Cheng et al, 1998), a retenção nos tecidos (Adeola et al, 1995) e seu nível plasmático (Hill et al, 2000) decrescem com a suplementação de Zn na dieta. A presença de Zn e Cu na mucosa intestinal estimula a síntese de metalotioneína que atua na homeostasia desses minerais, regulando a quantidade a ser transferida para o plasma (Cousins, 1985).…”
Section: Resultsunclassified
“…A base de dados foi desenvolvida a partir de 18 artigos (Hahn & Baker, 1993;Wedekind et al, 1994;Adeola et al, 1995;Poulsen & Larsen, 1995;Luo & Dove, 1996;Schell & Kornegay, 1996;Swinkels et al, 1996;Cheng et al, 1998;Carlson et al, 1999;Hill et al, 2000;Schiavon et al, 2000;Hill et al, 2001;Case & Carlson, 2002;Revy et al, 2002 As variáveis dependentes foram as concentrações plasmáticas de Zn e Cu e o ganho de peso e as variáveis nutricionais consideradas na análise, a ingestão de PB, lisina, Ca, P total, Cu e Zn. Os nutrientes ingeridos foram calculados com base na matéria natural por intermédio de dados de consumo dos animais e composição nutricional da dieta.…”
Section: Methodsunclassified
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“…Muitos fatores podem reduzir o desempenho e a saúde dos suínos jovens, mas alguns ingredientes podem ser adicionados às rações para anular esses efeitos (HILL et al, 2000).…”
Section: Zinco Na Dieta De Leitõesunclassified