LAUSR

Spent ducks are female ducks that are no longer productive and have an average age of more than two years. Spent duck meat characteristic is tough, dark in color, pungent odor, high fat (3.84-8.47%), and high protein content 16.96-20.4% (Damayanti, 2006; Ali et al., 2007; Matitaputty & Suryana, 2010). Duck meat contains high unsaturated fatty acids and low saturated fatty acids compared to chicken meat. About 60% of total fatty acids are unsaturated fatty acids (Ali et al., 2007; Shin et al., 2019). Based on its meat’s toughness, duck meat needs to be processed into a product like nuggets.