Evidence of Low Sodium Status in Beef Cattle Grazing Coloniao Guinea Grass Pasture
نویسندگان
چکیده
Playne (1970) suggested that the levels of sodium (Na) in some tropical grasses are below those considered sufficient for the requirements of lactating cows. We examined the concentration of Na in guinea grass from a number of areas in Queensland. Levels in creeping guinea (P. maximum Q 8132), P. maximum cv. Coloniao, P. maximum cv. Hamil and P. maximum (C.P.I. 37910, Makeuni) ranged from 0.007 to 0.014, 0,011 to 0.025 ,and 0.007 '-from granite, mixed alluvial and basalt soils respectively, In view of these low levels, we examined some physiological parameters in beef cattle grazing predominantly Coloniao guinea grass. e
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