Study on Nutritional Component Difference of Rapeseed Meals in Different Producing Areas of Sichuan
The purpose of this study was to compare the nutritional component difference of rapeseed meals in different producing areas of Sichuan.A total of 17 rapeseed meal production enterprises(3 in the east,3 in the south,7 in the north and 4 in the center)were selected from 21 enterprises with rapeseed meal production li-censes in Sichuan province according to different producing areas(eastern Sichuan,southern Sichuan,north-ern Sichuan and central Sichuan),and 3 samples were collected from each.In addition,the rapeseed meal im-ported from Canada was collected from 3 feed manufacturers,and 3 samples were taken from each factory to determine the contents of conventional nutrients,amino acids,fatty acids and anti-nutritional factors.The re-sults showed as follows:1)the main components of rapeseed meals in Sichuan were 41.07％crude protein(CP),17.58 MJ/kg gross energy(GE),14.76％crude fiber(CF),52.65％neutral detergent fiber(NDF),35.12％acid detergent fiber(ADF),1.11％lysine(Lys),0.34％methionine(Met),0.53％cys-teine(Cys),0.37％tryptophan(Trp),1.41％threonine(Thr),13.82％erucic acid,51.00 pmol/g glu-cosinolide(GS),and 0.20 mg/g isothiocyanate(ITC).2)The contents of CP,calcium(Ca),Lys,Trp and Cys as well as GE in rapeseed meals in Sichuan were significantly lower than those in Canadian rapeseed meal(P＜0.05),while the contents of CF,NDF,ADF,acid detergent lignin(ADL),crude ash(Ash),erucic acid,linolenic acid and GS were significantly higher than those in Canadian rapeseed meal(P＜0.05).3)There were no significant differences in the contents of most conventional nutrients,amino acids,fatty acids,GS and ITC in rapeseed meals among different producing areas in Sichuan(P＞0.05),but there were differences in GE and the contents of Ash,starch,Ca,total phosphorus(TP)and Met.In conclusion,the rapeseed meals in Sichuan belong to the"double high"quality of high erucic acid and high GS,and there are certain differences in the nutritional components of rapeseed meals in different producing areas.[Chinese Jour-nal of Animal Nutrition,2024,36(7):4751-4760]
万方数据
维普
