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, 99 , ( (), MN - () . , , MN ; , , . 99 , 27 (106 ) 72 (284 ). (155 785 ) ( 0 90% , = 50%; 8.0 24.8% , = 16.2%; 7.2 12.8% . = 10.9%, ( 0.95 4.40 , = 2.86%). 56 72 (99 ), . , . , , . MN, (I ) - 0.75, +0.44, -1.9 + 0.52. - 0.12, + 0.14, . MN. (/ ) + 0.18, - 0.01 - 0.37. 57% 28% - (36%


) , , (0.85 ). , , . , - . , , , . MN - , MN . , - , MN , , . , , , . , ( /), ( ), ( ) . . , , -, . , . , - , - (.. ).

, , , 80% ; 20% (NRC. 1989). , , 80% (NRC, 1989). , 64%. - 100%) (NRC, 1989). , ; 50 100%. .



. Orskov et al. (1986) , 79% 74% , 40-50 , , . Guilloteau (1986) , 30% , . ', , () 50%. 80% ; , , 40%.

(NRC, 1985, 1989) , . . , (, ) . , , .





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