Rumen Fermentation and Digestibility in Steers as Influenced by Level of Intake and Monensin

Abstract

M. 1983. Rumen fermentation and digestibility in steers as influenced by level of intake and monensin. Can. J. Anim. Sci. 63: 855-860.The effects of level of feed intake and monensin on rumen fermentation and digestibility in steers were evaluated. The four levels of feed intake were 30, 50, 70 and 90 g of dry matter per kilogram body weight raised to the 0.75 power (g/kgot').Monensin was included at 0 and 33 mg/kg diet.

Effect of monensin sodium on fermentation efficiency in sheep rumen (short communication)

“…An increase in fermentation efficiency in wether rations with addition of monensin is associated with an increase in the gross efficiency of feed conversion, which is highest in ration 14 (BARAN et al, 1986a) and also with a high molar % of propionic acid ( Table 2). The increase in propionic acid or change in the molar proportion of VFA in favour of propionate, are typical effects of monensin on rumen fermentation (RICHARDSON et al, 1976;CHALUPA et al, 198O,;HORTON et al, 1983;BARAN et al, 1986a). This favourable effect of monensin was more increased in adult wethers than in growing lambs, when monensin influenced favourably the rumen efficiency, but had no effect on lamb production parameters.…”