Proceedings Volume 2010 (format .pdf) - SimpBTH

The samples A and C have been recorded the highest content of Zn - 93.2 ppmand 87.5 ppm respectively. The iron (Fe), an element with major value in nutrition,has been recorded a big variation in the case of studied fodder samples, the biggestin the case of sample E (867.7 ppm).Physico chemical caracterization. The studied green fodder samples has beenphysico-chemical analysed and the results are shown below:SampleTabel 2. Physico-chemical characterization of samplesMOISTURE ASH PROTEIN FAT(%) (%) SU (%) SU (%) SUCRUDEFIBER(%) SUA 57.30 4.08 12.40 0.44 32.07C 65.93 2.73 10.59 0.44 34.91D 63.61 2.49 10.95 0.77 37.67T 67.80 2.07 12.22 0.26 36.31E 62.19 2.81 13.62 0.55 28.97The analysed fodder humidity varied between 57.30 and 67.80%. Thestudied fodder have a high protein content, which varies between 10.59 and 13.62(the maximmal value has been recorded in the case of the sample from outsideexperimental area and the minimmal value has been recorded in the case of thesample from a natural meadow, ammended, fertilised and padocked). The analysedgreen fodder samples have a low fat content between 0.26 and 0.77% su. Theanalysed fodder content in fibers varied between 28.97 and 37.67% su.Sensory fingerprint. The electronic nose (e-nose) FOX 4000 (Alpha MOS,France) is equipped with an automatic headspace sampler HS100 and with 18metallic oxide sensors. Green fodder analyzed were homogenized. Due to specificreactions to various kind of molecules, e-nose sensors produce signals for specificodor compounds. Several experiments were conducted to obtain an optimummethod.The analysis was performed using the same conditions at all the samples: Flow rate: 150 ml/min Sample quantity in the vial: 0.5 g Headspace incubation time: 180 s Headspace incubation temperature: 60 0 C Syringe temperature: 65 0 CFrom each sample 0.5 g was taken and placed in a glass vial. Headspace wasgenerated by heating and shaking vials containing homogenate sample.Using thesyringe from the autosampler, a portion of the headspace of each sample wasinjected into the FOX and measured. Each sample was analyzed for three times.From each sample was obtain a sensor responses like in figure 4.288