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

1 st WorkshopXIII International Feed Technology SymposiumTable 1. Chemical quality of feed ingredients of oleaceous plants originParameterSoybeangritsSoybeancakeSoybeanpelletSunflowerpelletProteins (%) 33.81-38.53 37.31-45.81 41.06-45.27 31.12-35.29Moisture (%) 5.21-8.30 4.88-9.11 9.92-11.52 6.76-12.93Fats * (%) 19.14-21.41 7.18-12.18 2.38-3.05 0.71-4.56Celullose (%) 3.46-6.51 3.12-6.23 2.97-7.44 18.05-24.24Ash (%) 4.49-5.22 4.91-6.49 5.62-5.75 5.48-6.65Urease activity (mgN/g/min) 0.08-0.52 0.06-0.44 0.07-0.23 -No. of samples 9 19 5 16Adequate quality (%) 67 100 80 75*Fat content in the sunflower pellets is not defined by Regulations on the quality andother requirements of fodder [16], and Regulations on changes and supplements ofregulations on the quality and other requirements of fodder [17], but is given in themanufacturer's declaration.During the investigation of chemical quality of animal feed ingredients of oleaceousplants origin inadequate quality was found in 16.33% of samples, which is significantlysmaller percentage compared with invalid samples of feed ingredients and foddermixtures (41.97%) originating from surroundings of Niš and South Morava region [6].Based on the results shown in Table 1 can be noticed that the protein content did notmatch the quality of the Regulations on the quality and other requirements of fodder[16], and Regulations on changes and supplements of regulations on the quality andother requirements of fodder [17] in 4.08% of oleaceous plants samples. In one sampleof soybean pellet and one sample of soybean grit detected protein contents were belowthe value of this parameter permitted by mentioned Regulations (44% or 36%). In thecase of cellulose content inadequate quality of 2 samples was a consequence of highervalues of this parameter than the maximum values issued by the current SerbianRegulations: 4.5% for soybean grit, and 21% for sunflower pellets. Three samples ofsunflower pellet (18% of tested samples) were incorrect with respect to the content of fatabove 3% (max value listed in the manufacturer's declaration). Urease activity did notmatch the value given in the Regulations on the quality and other requirements of fodder[16], and Regulations on changes and supplements of regulations on the quality andother requirements of fodder [17] in one soybean grit sample because it was higherhigher than 0.40 mgN/g/ min.Correctness of feed components has beneficial impact on the quality of forage mixturesin which content the individual nutrients take part. Our previous investigations of feedmixtures from Banat region of Vojvodina in the period from 2006-2008 [8] also revealedthe small percentage of unaccurate samples - only 3.12% of them had inadequate proteincontent, 6.26% calcium content and 3.12% phosphorous content.284