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Steers Grazing Endophyte-Free Tall Fescue: Seasonal Changes in Nutrient Quality, Forage Intake, Digesta Kinetics, Ruminal Fermentation, and Serum Hormones and Metaboliteslf2

Steers Grazing Endophyte-Free Tall Fescue: Seasonal Changes in Nutrient Quality, Forage Intake, Digesta Kinetics, Ruminal Fermentation, and Serum Horm

Steers Grazing Endophyte-Free Tall Fescue: Seasonal Changes in Nutrient Quality, Forage Intake, Digesta Kinetics, Ruminal Fermentation, and Serum Hormones and Metaboliteslf2   (Citations: 10)
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ABSTRACT Six ruminally,cannulated,Holstein steers (average BW 514 kg) grazed a 33-ha, unir- rigated, endophyte-free, tall fescue , .lo) during May (23.7; 3.11, June Key Words: Cattle, Festuca, Digestion, (20.7; 3.11, and September (21.0;
Published in 2010.
Cumulative Annual
    • ...This agrees with the results of McCracken et al. (1993), who found a decrease in ruminal ammonia when steers were moved from spring to autumn pasture...
    • ...Acetate, propionate and butyrate in the rumen fluid were influenced by the period but not by the concentrate type (Table 4). A period x concentrate x sampling time interaction (P<0.05) was observed for acetate, propionate and butyrate (Figure 1). Acetate, propionate and butyrate levels were high during early spring, when fiber digestibili ty is high, as reported by McCracken et al. (1993)...

    Andrea Cabidduet al. Effect of corn and beet pulp based concentrate on ruminal parameters i...

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