Supplementary minerals, protein and energy for cattle grazing stargrass pastures [Florida; Cynodon nlemfuensis]
1990
Horton, G.M.J. (Rutgers Univ., New Brunswick (Canada). Dept. of Animal Sciences) | Pitman, W.D. (Florida Univ., Ona (USA). Agriculture Research and Education Center)
Three protein-energy supplements and a typical protein fortified mineral supplement were compared with cattle grazing "Ona" stargrass (Cynodon nlemfuensis var. nlemfuensis) pastures during the winter season in Florida. Respective daily dry matter and crude protein intake were: fortified mineral, 0.21 kg and 0.04 kg; bermudagrass, 1.32 kg and 0.26 kg; molasses, 1.07 kg and 0.22 kg; corn, 1.30 kg and 0.26 kg. Average daily gains for cattle receiving the fortified mineral supplement, bermudagrass, molasses and corn supplements were 0.01, 0.18, 0.19 and 0.29 kg, respectively. These results indicate that energy was a limiting nutrient in stargrass pastures during the winter. Responses to protein-energy supplements were cost effective under these conditions.
显示更多 [+] 显示较少 [-]