Efficiency of Chewing for Breakdown of Large Particles during Eating and Ruminating in Sheep Fed Hays
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- UEDA Koichiro
- National Institute of Animal Industry
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- ICHINOHE Toshiyoshi
- Faculty of Life and Environmental Science, Shimane University
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- TAMURA Tadashi
- Shintoku Livestock Research Station
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- OKUBO Masahiko
- Faculty of Agriculture, Hokkaido University
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- ASAHIDA Yasushi
- Faculty of Agriculture, Hokkaido University
Bibliographic Information
- Other Title
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- めん羊の採食時および反芻時咀嚼による粗飼料大飼料片の微細化効率
- Efficiency of Chewing for Breakdown of
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Abstract
Sheep fed three kinds of hay, early cut orchardgrass hay (EOG), late cut orchardgrass hay (LOG) and alfalfa hay (ALF) were used to determine the chewing efficiency for large particles (LP; particles retained on the sieves with more than 1.18 mm aperture) breakdown during eating and ruminating. The LP proportion of ingested bolus and ruminal digesta was higher for EOG than for others. The efficiency of chewing for LP breakdown (g dry matter breakdown of LP/min of chewing) during eating tended to be higher for ALF than for others (EOG: 1.12, LOG: 0.88, ALF: 1.36g/min). However, the efficiency of chewing during ruminating differed statistically among the three kinds of hay (EOG: 0.98, LOG: 0.65, ALF: 0.47 g/min). For ALF, the efficiency of chewing during ruminating was significantly lower than that during eating. It was concluded that the extent of contribution of chewing to the breakdown of forage large particles differed among forage maturity and species, and between during eating and during ruminating.
Journal
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- Nihon Chikusan Gakkaiho
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Nihon Chikusan Gakkaiho 68 (10), 917-925, 1997
Japanese Society of Animal Science
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Keywords
Details 詳細情報について
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- CRID
- 1390001205195603840
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- NII Article ID
- 10024587528
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- NII Book ID
- AN00195188
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- ISSN
- 18808255
- 00215309
- 1346907X
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- NDL BIB ID
- 4324783
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed
