Nutritional value study of cotton straws combined with whole maize and beet residue in mixed silage
The experiment aimed to explore the nutritional characteristics and feeding value of a mixed silage containing cotton stalks,whole corn plants,and sugar beet residue.The experiment was divided into three groups:The control group(CK group)used whole corn plant silage,while Group A and Group B used a 1∶1 mixture of cotton stalks with whole corn plants and sugar beet pulp for silage,with three replicates in each group.After 90 days of fermentation,samples were taken for analysis of silage fermentation quality,nutritional characteristics,and feeding value indicators.The results indicated that compared to the CK group,the pH values increased(P<0.05)and the Fisher's score decreased(P<0.05)in Group A and Group B.The CP,NDF,and ADF contentration increased(P<0.05),while the NFC content decreased in Group A and Group B(P<0.05).The RFV and RFQ of Group A were higher than those of Group B(P<0.05).Compared to the CK group,the in vitro gas production decreased in Group A and Group B,with Group A having higher gas production than Group B.The IVDMD of Group A and Group B was lower than that of the CK group(P<0.05).The study suggests that the feeding value of the mixed silage with cotton stalks,whole corn plants,and sugar beet residue is still lower than that of the whole corn plant silage.However,Group A exhibits a feeding value closer to that of the CK group,indicating higher application potential.
cotton strawwhole corn plantbeet residuemixed silagefermentation qualitynutritional characteristicsfeeding value
万方数据
维普
