Effect of fasting on ingestive behaviour of sheep grazing grass or white clover monocultures - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Proceedings Year : 1997

Effect of fasting on ingestive behaviour of sheep grazing grass or white clover monocultures

Abstract

Effects of fasting sheep for 24 h (F), compared with controls (NF), on their ingestive behaviour and particle size in extrusa was investigated using oesophageally fistulated animals, grazing monocultures of Lolium perenne (G) or Trifolium repens (C). Bite masses tended to be lower on G than C and tended to increase with fasting (40, 64, 61 and 70 mg DM bite-1) for treatments GNF, GF, CNF and CF, respectively. Prehension rate was lower (52 vs. 69 bites min-1) and masticating rate was higher (106 vs.86 mastications min-1) for G and C treatments, respectively. Over 24 h following fasting, NF animals grazed less (458 vs. 578 min 24 h-1) and ruminated less (276 vs. 348 min 24 h-1) than F animals. Particles in extrusa < 0.18 mm were 48 vs. 55 %, for G and F, and 49 vs.54% for F and NF treatments.
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Dates and versions

hal-04256568 , version 1 (23-11-2023)

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  • HAL Id : hal-04256568 , version 1

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P.D. Penning, Maryline Boval. Effect of fasting on ingestive behaviour of sheep grazing grass or white clover monocultures. 17, XVIII. International Grassland Congress, pp.2-26, 1997. ⟨hal-04256568⟩

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