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… fields where there are no scaring activities. In Ogun State, Nigeria, scaring costs may account for as much as 50% … during the 2012-2016 period were mostly within this range and were generally lower in the later years (Table 1), … 2012 2013 2014 2015 2016 Roosts Mean litres.ha -1 n, SD Range 4.79 21, 3.95 1.25 - 15 4.03 12, 2.50 1.5 - 10 4.20 10, …