This report is part of a nationaloverview of agricultural pollution in the Philippines,commissioned by the World Bank. The overview consists ofthree ‘chapters’ on the crops, livestock, and fisheriessub-sectors, and a summary report. This ‘chapter’ provides abroad national overview of: (a) the magnitude, impacts, anddrivers of pollution related to the livestock sector’sdevelopment; (b) measures that have been taken by the publicsector to manage or mitigate this pollution; and (c)existing knowledge gaps and directions for future research.This report was prepared based on existing literature,recent analyses, national and international statistics, andinterviews. It did not involve new primary research and didnot attempt to cover pollution issues that arise in thebroader livestock value chain, outside the farmgate, forinstance from slaughterhouses, feed processing plants, orveterinary drug factories.