A study for composite straw particles production and milk cow feeding

In this study, a high valueadded commoditycomposite straw particles was made from fresh alfalfa grass by cutdryshatterratio mixturepelletization procedure. A random grouping experiment was designed to evaluate the relationships between substitution quantity and milk production and grass consumption cost through feeding milk cow with composite straw particles substituted for 2.5 kg or 2.0 kg concentrated feed. The results showed that composite straw particles is a small volume, less expensive，antistorage and using convenient, palatable to livestock and higher nutrition products. Compared to the 2.5 kg concentrated feed, composite straw particles significantly increased milk production by 2.2 kg per cow each day，reduced forage cost by 0.47 yuan, increased income by 7.07 yuan；moreover, compared to 2.0 kg concentrated feed, composite straw particles strong significantly increased milk production 1.28 kg per cow each day, reduced forage cost 0.48 yuan, increased income 4.32 yuan.