Journal : ? , vol. 50 , p. 193–204–12 , 2000
Publication type : Academic article
Issue : 3
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Forty-eight crossbred [(Norwegian Landrace x Yorkshire) x (Norwegian Landrace x Duroc)] growing-finishing pigs (average 28.3 kg initial body weight and 104.7 kg final weight), were used to study the effect of adding food waste products (FWP) in diets. The treatments were comprised of six levels of FWP (0, 20, 40, 60, 80 and 100% of net energy), in combination with a barley-soybean diet. The FWP consisted of food leftovers, waste from food processing plants, bakery wastes, dairy wastes, and blood. Chemical composition of FWP averaged 214 g kg-1 dry matter, 49 g kg-1 crude protein, 33 g kg-1 crude fat, 5 g kg-1 crude fiber, 115 g kg-1 N-free extracts and 12 g kg-1 ash. Increasing dietary levels of FWP reduced (linear, P < 0.001) average daily intake of feed on a dry matter basis (ADFI), and ADFI was significantly lower when pigs were fed the diets with 60% or more of net energy as FWP. Increasing dietary levels of FWP reduced (linear, P < 0.01) fat firmness, and lightne (L* values) of both backfat