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Studies on the eating and ruminating behaviour of sheep: II. Effect of cutting length of ammoniated barley straw



Studies on the eating and ruminating behaviour of sheep: II. Effect of cutting length of ammoniated barley straw



Korean Journal of Animal Nutrition & Feedstuffs 19(2): 166-171



This experiment was conducted to determine the effect of cutting length of ammoniated barley straw on eating and ruminating behaviour of sheep. Three sheep averaging 40 kg body weight were assigned to a 3 times 3 Latin square design by three cutting length 3 cm, 9 cm and 15 cm of ammoniated barley straw. The results are as follows: 1. Eating time was increased as the cutting length of ammoniated barley straw increased, and ruminating and total chewing times were significantly (P lt 0.05) higher for 9 cm and 15 cm than for 3 cm. 2. Number of chews during eating was increased as the cutting length of ammoniated barley straw increased, and number of chews during ruminating and that of total chewing were significantly (P lt 0.05) increased as the cutting length increased. 3. Both chewing speed 1 (daily chewing numbers of ruminating/daily ruminating time (sec)) and chewing speed 2 (daily total chewing numbers/daily total chewing time (sec)) were accelerated with increased the cutting length of ammoniated barley straw. 4. Eating rates of DM and NDF were increased as the cutting length reduced, however ruminating and chewing efficiency of DM and NDF were significantly (P lt 0.01) higher for 3 cm than for 9 cm and 15 cm. 5. Number of boluses per day and number of chews per bolus were increased as the cutting length increased, but chewing time per bolus was highest at 9 cm.

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Accession: 009476146

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