Forage feeding value estimation of birdsfoot Trefoil (Lotus corniculatus L.) | Оценка на хранителната стойност на фураж от звездан (Lotus corniculatus L.)
2010
Najdenova, J., Institute of Forage Crops, Pleven (Bulgaria) | Kyukuchukova, A., Institute of Forage Crops, Pleven (Bulgaria) | Georgieva, N., Institute of Forage Crops, Pleven (Bulgaria)
The changes during different years and growths in protein and fibers, analysed by classical chemical Weende and Van Soest analyses, in vitro enzymatic digestibility of organic matter were determined in forage from promissing strains and standard variety Targovishte 1 of birdsfoot trefoil - Lotus corniculatus L., grown in competitive variety trials. The field experiment was carried out in the Institute of Forage Crops, Pleven, 2002-2005. Crude protein content of studied patterns varied from 167 to 184 g kg-1 dry matter. In the frames of the years the variation was from weak CV 1,75 – 3,3% to middle CV 13,6%. The correlation between the crude protein content and crude fiber was high negative r = -0,996 as minimal content of crude fiber formed pattern № 24, which was with 8,0 g kg-1 lower than standard. Mean for the period the patterns № 24 and 6 distinguished towards standard. The patterns № 24 and 6 distinguished towards standard with the lowest mean fiber content of NDF 281 g kg-1 - 11,6 % and 302 g kg-1 - 5% respectively and ADF: 258 g kg-1 and 262 g kg-1 - 3.0 and 1.5 % respectively. The content of ADL was mean 68 g kg-1 as the variation was from 60 to 75 g kg-1 at lower values for patterns № 6 and 24 respectively with 12.9 and 7.1%. The enzyme digestibility of organic matter was high – mean 0.68 g kg-1. The digestibility of organic matter, mean for the period corresponded - for the pattern № 17 or was higher for the patterns № 6 and 24 from the standard digestibility. By the net energy feeding value all estimated patterns exceeded the standard as the arrange was in following increasing order № 17, 24, 6 - UFL-UFV: 0,767-0,792 – 0,667-0,695 and conserning of FUM-FUG – 0,636-0,656 – 0,545-0,568. The highest protein feeding value had the pattern № 24: total digestible protein TDP - PBD: 134 g kg-1, PDIN: 111 and PDIE: 96 g kg-1.
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