Effects of dietary n-3 polyunsaturated fatty acids and ... - FINS

1 st WorkshopXIII International Feed Technology SymposiumResults of examination of mixer efficiency for additives by using RF tracer are shown inTable 4.Table 4. Results of homogeniety examination by using RF tracerSample mass, g Absorbance (A) per 1005 min 10 min 15 min 5 min 10 min g 15 minSample 1 170,9 168,0 195,0 0,181 0,108 0,138Sample 2 189,4 194,5 190,2 0,194 0,126 0,126Sample 3 196,6 165,7 190,5 0,191 0,120 0,130Sample 4 185,5 191,7 183,6 0,194 0,102 0,138Sample 5 203,5 171,4 173,1 0,177 0,122 0,139Sample 6 176,0 159,3 182,1 0,202 0,115 0,138Sample 7 184,9 160,0 197,7 0,73 0,123 0,130Sample 8 167,6 184,7 165,4 0,160 0,113 0,143Sample 9 191,5 0,204Sample 10 175,0 0,201Mean value, x 0,187 0,116 0,135Standard deviation, 0,01 0,01 0,01Coefficient of variation, % 7,7 7,2 4,3From the results in Table 4 can be concluded that with usage of RF tracer for mixingperiod of 5 and 10 minutes CV results were higher than 5% (7,7% and 7,2%). Thisindicates that mixture had in adequate homogeniety. Prolongation of mixing time to 15min caused decreasing of CV to level belowe 5%, which is recommended upper limitvalue in premix production (Picture 6).184