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  • 1
    Descripción: ... to maintain a system of green water, the OM was greater than 3% which reflected a proper process...
  • 2
    Descripción: ... used the indirect method with chromic oxide marker, collecting the faces through the Guelph system...
  • 3
    Descripción: ...; faeces were collected by the modified Guelph system. Tilapias having an average 130 g weight were fed...