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  • Title: Effect of dietary composition on abomasal and duodenal myoelectrical activity.
    Author: Lester GD, Bolton JR.
    Journal: Res Vet Sci; 1994 Nov; 57(3):270-6. PubMed ID: 7871244.
    Abstract:
    The changes in the frequency of abomasal slow waves and their propagation, the abomasal spike burst rate and the duodenal spike burst rate were assessed in sheep fed three diets containing either 100 per cent concentrate, 50 per cent concentrate and 50 per cent forage, or 100 per cent forage. The frequency of abomasal slow waves and spike burst frequency were both significantly reduced in sheep fed the diets high in concentrate when compared with animals fed the 100 per cent roughage diet. The velocity of propagation of the slow waves and the duodenal spike burst frequency were not significantly affected by the dietary composition. The sheep consumed significantly less of the 100 per cent concentrate diet in the 45 minutes before recording than of the other two diets, but the amount of feed consumed was not correlated significantly with the changes observed in the myoelectrical activity. These are consistent with an inhibitory effect of concentrate on abomasal motility.
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