Abstract
Six barrows, with an average initial body weight of 88 kg, were used in a digestibility and balance experiment to study the nutritive value of meat and bone meal (MBM). The MBM, which contained 478 g crude protein and 322 g ash/kg dry matter (DM), was included in barley-based diets at two levels: 100 and 200 g/kg. The experiment was conducted according to a two-period reversal design. The apparent digestibilities of organic matter, crude protein and crude fat in the MBM were 0.910, 0.909 and 0.730, respectively. The MBM was calculated to contain 434 g digestible crude protein, 14.26 MJ metabolizable energy and 8.82 MJ net energy/kg DM. The efficiency of nitrogen utilization decreased with an increasing MBM supply. Due to relatively high mineral intakes, the apparent digestibilities of calcium and phosphorus remained low.
Highlights
Meat and bone meals are by-products of the slaughtering and meat processing industry
The Finnish rendering plants produce approximately 29 million kg of meat and bone meal annually (Sirén, personal communication), a large proportion of which is used in pig diets
The results of feeding experiments have shown that replacement of soya bean meal with increasing levels of meat and bone meal causes a reduction in average daily gain and feed conversion efficiency (Alaviuhkola 1989, 1992), the calculated nutrient supply, based on the digestibilities and energy values reported in feed tables (Salo et al 1990) remained the same
Summary
Nutritive value of meat and bone meal for growing pigs. (Department of Animal Science, PO Box 28, FIN-00014 University of Helsinki, Finland.). With an average initial body weight of 88 kg, were used in a digestibility and balance experiment to study the nutritive value of meat and bone meal (MBM). The MBM, which contained 478 g crude protein and 322 g ash/kg dry matter (DM), was included in barley-based diets at two levels: 100 and 200 g/kg. The apparent digestibilities of organic matter, crude protein and crude fat in the MBM were 0.910, 0.909 and 0.730, respectively. The MBM was calculated to contain 434 g digestible crude protein, 14.26 MJ metabolizable energy and 8.82 MJ net energy/kg DM. Due to relatively high mineral intakes, the apparent digestibilities of calcium and phosphorus remained low
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