|
Matching Livestock Systems with Available Resources |
MEKARN Regional Conference 2007 |
Samples of sesame oil meal (SOM) taken from the expeller oil factories had 94.0% DM and as % in DM 37.8 crude protein, 9.57 crude fiber and 7.99 Ether extract. A digestibility trial using total collection method resulted in coefficients of apparent digestibility of DM 70.6%; crude protein 78.2%, crude fibre 26.6 %, ether extract 84.6% and ash 24.2%. Amino acid analysis pattern showed that methionine content rather high. SOM was preserved in room condition during 2, 6 and 12 months with low aflatoxin content (0.30-18µg/kg at 12 months), indicating that SOM has strong natural antioxidant properties.
32 crossbred pigs (Duroc x Yorkshirex Landrace) (16 castrated males and 16 females) with average body weight 25 ± 3 kg, and 70± 3 days old were allocated to four treatments in which protein of SOM replaced protein of SBM in proportions of 0, 33.3, 66.6 and 100%, equivalent to inclusion levels of 0, 8, 16 and 24% of SOM in the diets. Average daily weight gains were 769, 762, 772 and 745 g/day with feed conversion ratios of 2.53, 2.54, 2.53 and 2.6 for increasing levels of SOM in the diet. There was an increase of carcass dressing % and loin eye area, with reduction of back fat thickness with increasing inclusion levels of SOM in the diets. SOM increased the iodine index of pig fat.
Due to price of SOM being lower compared with SBM (0.214 vs. 0.315 USD /kg), the replacement of SBM by SOM in the diets can give higher benefits.