Establishment of Rotational Grazing System on Dwarf Napiergrass Pasture Oversown with Italian Ryegrass by Smallholder Farmers of Japanese-Black Breeding Beef Cows in Southern Kyushu, Japan
In southern Kyushu, dwarf variety of late-heading type (DL) napiergrass (Pennisetum purpureum Schumach) has utilized for the rotational grazing in 4 months of hot summer period by Japanese-Black (JB) beef cows for 6 years in 2002-2007. The objectives of this study were to investigate the establishment of feeding system of DL napiergrass with Italian ryegrass (Lolium multiflorum Lam., IR) grazed by the standard herd of JB beef cows in breeding beef fanners. Grazing DL napiergrass pasture was established totally at 0.66 ha with 5 paddocks (0.132 ha each) in 2006. Oversowing of IR was imposed into the inter-row of DL napiergrass on December 8, 2007. Grazing for IR and DL napiergrass pastures was carried out in 30 and 71 days, respectively. Daily gain of beef cows for the grazing on DL napiergrass was averaged at 0.23 kg head-1 day-1, and carrying capacity was calculated at 891 CD ha-1. The results revealed that DL napiergrass with IR pasture should fit to the rotational grazing with maintaining the liveweight of grazing beef cows for 4.5 months, and it can be proposed for the sustainable and low-cost feeding system to smallholder farmers in this area.
Dwarf napiergrass Beef cows herd Daily gain Quality Rotational grazing
Yasuyuki Ishii Kiichi Fukuyama Takanori Iwakiri Ahmad Wadi Sachiko Idota
Faculty of Agriculture, University of Miyazaki, Miyazaki 8892192 Japan Polytechnic Agriculture Negeri Pangkep, Segeri Mandalle 90655, Indonesia
国际会议
首尔
英文
218-219
2009-08-10（万方平台首次上网日期，不代表论文的发表时间）