The Effects of Feeding Cows with Italian Ryegrass

Effects of feeding cows with Italian ryegrass was investigated in this paper. Italian ryegrass was grown in winter fallow paddy field. The 23 days cow feeding experiment (5 days pretest and 18 days formal test) showed that replacing all or part of wild weeds with Italian ryegrass as the green fodder could improve milk production, prolong cresttime of lactation and increase the milk protein content. The experiment also proved Italian ryegrass can increase the rate of milk protein at the peak and the decline of cow-milking. By economic returns estimation, replacing all the wild weeds with Italian ryegrass as green fodder could make a profit of 6 RMB per cow per day. The economic returns are notable.