Recycled cafeteria food waste as a feed for swine: nutrient content digestibility, growth, and meat quality.

Abstract

This project was undertaken to compare growth, meat quality, and diet digestibility when pigs were fed cafeteria food waste (FW) or a corn/soybean meal (CSM) diet. Cafeteria food waste (36 samples) fed in the growing and finishing experiment averaged 22.4% DM, 21.4% CP, 14.1% ADF, 27.2% ether extract, and 3.2% ash. The first experiment used 50 crossbred pigs randomly assigned to four diets. During the growing phase, pigs fed a CSM diet gained faster (P < .05) than pigs fed FW or FW plus energy supplements. However, the two groups fed FW plus energy supplements (at 25 or 50% of the intake of the CSM diet) gained faster (P < .05) than pigs fed FW alone (.61 and .65 kg/d, respectively, vs .46 kg/d). In the finishing phase, FW plus an energy supplement fed at 50% of the level of CSM intake resulted in gains that did not differ from those of pigs fed the CSM diet (.90 vs .99 kg/d; P > .05). A nutrient digestibility and nitrogen balance trial using eight growing barrows compared FW with the same CSM growing diet fed earlier. Dry matter digestibility was similar for the two diets (P > .05). However, CP digestibility was higher (P < .05) in the FW diet than in the CSM diet (88.2 vs 84.3%). Although the percentage of nitrogen retained was not different between FW and CSM diets (56.0 vs 55.2%; P > .05), the amount of nitrogen retained was greater for pigs fed the CSM diet (29.3 vs. 24.5 g/d; P < .05) because DMI was greater (1.7 vs 1.4 kg/d) for pigs fed CSM compared with FW. At the completion of the finishing experiment, six pigs were selected from both the CSM and FW diets and fed to finishing weight. The pigs were slaughtered, and the pork loins were removed for flavor and texture analysis. A consumer panel rated the meat quality from FW pigs as acceptable and overall flavor comparable to CSM pigs (P > .05). These results indicate that food waste has nutritive value and may be useful in swine diets.

A study of the impact of moist-heat and dry-heat treatment processes on hazardous trace elements migration in food waste

“…Therefore, the resource utilization of food waste, such as anaerobic biogas production (Cekmecelioglu and Uncu, 2013;Chen et al, 2014;Forster-Carneiro et al, 2008;Tawfik and El-Qelish, 2012), feedstuff production (Kwak and Kang, 2006;Jin et al, 2012;Westendorf et al, 1998;Yang et al, 2006), and composting (Hwang et al, 2002;Seng et al, 2013;Kim et al, 2008), draws particular attention of researchers as well as administrators. For instance, from 2010 to 2014, the Chinese government launched a program for the resource utilization and safe treatment of food waste in 67 pilot cities, with the total treatment capacity as 17,770 tons/day.…”

Effects of different proportions of dried cafeteria leftover inclusion in a concentrate mix on performance of growing pigs

“…The use of by-products from agricultural, industrial processing and left over, such as cafeteria left over (Luu et al, 2000) is a good alternative which can help improve producers' economic returns. The use of food wastes as animal feed is an alternative of high interest since it produces an environmental and public benefit besides reducing the cost of animal production (Westendorf et al, 1998;Myer et al, 1999;Westendorf, 2000).…”

Pengaruh Penggunaan Sekam Padi Dalam Ransum Berbasis Limbah Pangan Hotel Kering Terhadap Pertumbuhan Dan Karkas Babi

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