Sward characteristics, nutritive value and choice by cattle of conterminous monocultures of centipedegrass (Eremochloa ophiuroides) and bahiagrass (Paspalum notatum).
In south-western Japan, centipedegrass (Eremochloa ophiuroides; CG) offers a novel option for a warm-season perennial for grazing use in areas where bahiagrass (Paspalum notatum; BG) can be grown. However, the potential of CG as a forage has not been fully explored because of the short history as a forage crop. We conducted four experiments to evaluate CG (cv. TifBlair) in comparison with BG (cv. Pensacola) in terms of sward characteristics, nutritive value and choice by animals. In each experiment, four Japanese Black cows (Bos taurus) were individually allowed to graze conterminous monocultures of CG and BG (5 × 10 m each) for 30 min. Irrespective of regrowth durations and fertilizer rates, CG was consistently shorter, leafier and denser, contained lower acid detergent fiber and cellulose, and was preferred or equally selected by cows, as compared with BG. Furthermore, CG maintained sufficient levels of crude protein (80-89 g/kg DM) to ensure voluntary intake of ruminant animals under extended regrowth(‡) and without fertilizer, whereas BG failed to do so (65 g/kg DM). CG provided higher digestible dry matter than BG when crude protein concentration exceeded 86 g/kg DM. The results indicate advantages of CG as a forage.
Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.
Masahiko
M
Hirata
Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.
Toshiro
T
Okuma
Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.
Yuichiro
Y
Tanaka
Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.
Manabu
M
Tobisa
D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002417:Cattle / Q000502:physiology* / Q000523:psychology*; D002482:Cellulose / Q000032:analysis; D002755:Choice Behavior / Q000502:physiology*; D004063:Digestion; D004435:Eating; D005260:Female; D060434:Herbivory; D009753:Nutritive Value; D031781:Paspalum / Q000737:chemistry / Q000254:growth & development; D010940:Plant Proteins / Q000032:analysis; D006109:Poaceae / Q000737:chemistry / Q000254:growth & development
D010940:Plant Proteins; D002482:Cellulose
bahiagrass; centipedegrass; nutritive value; preference; sward structure