Manure production and mineral excretion in feces of gilts fed ractopamine

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dc.creatorPedro Henrique Watanabe
dc.creatorMaria Cristina Thomaz
dc.creatorLeonardo Augusto Fonseca Pascoal
dc.creatorUrbano dos Santos Ruiz
dc.creatorEverton Daniel
dc.creatorAlessandro Borges Amorim
dc.date2013
dc.date.accessioned2026-07-07T03:58:29Z
dc.descriptionA study was conducted to evaluate the feces+urine produced per animal (FUPA), dry matter, mineral matter, organic matter, nitrogen, phosphorus, potassium and sulfur in feces of gilts fed diets with increasing levels of ractopamine (0, 5, 10 and 15 mg kg-1 of diet). A total of 468 finishing gilts were allotted into 36 pens. In two days of each week, feces and urine were daily sampled in four pens per treatment, quantifying the feces+urine. To determine the characterization of feces, two samples per week were taken daily, in nine pens per treatment. It was used a split plot design, considering the ractopamine level as the plot and the weeks as the subplots. There was no reduction in nitrogen amount in feces. An interaction was detected between ractopamine concentrations and weeks for FUPA and phosphorus, potassium and sulfur in feces. Ractopamine addition in diets for gilts has reduced the feces+urine production and nitrogen and phosphorus excretion. Higher values estimated for potassium content in feces of animals fed diets with 10 and 15 mg of ractopamine kg-1 were found between the second and third week. Increasing levels of ractopamine from 5 to 15 mg kg-1 promoted higher excretion of sulfur over the weeks of supply.
dc.formatapplication/pdf
dc.identifier1806-2636
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303128706007
dc.identifier.urihttp://hdl.handle.net/123456789/449168
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3031
dc.rightsActa Scientiarum. Animal Sciences
dc.sourceActa Scientiarum. Animal Sciences (Brasil) Num.3 Vol.35
dc.subjectAgrociencias
dc.titleManure production and mineral excretion in feces of gilts fed ractopamine
dc.typeartículo científico

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Acta Scientiarum. Animal Sciences - Universidade Estadual de Maringá