1995 Fiscal Year Final Research Report Summary
Analysis of differences in calf growth under grazing based on energy metabolism as affected by climatic condition
| Project/Area Number |
06454110
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Zootechnical science/Grassland science
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| Research Institution | Gifu University |
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Principal Investigator |
OKUBO Tadakatsu Gifu Univ. Professor, 流域環境研究センター, 教授 (90115535)
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| Co-Investigator(Kenkyū-buntansha) |
KUROKAWA Yuzo Tokyo Agric, Engen. Univ. Assist. Professor, 農学部, 助手 (00234592)
ITANO Shiro Gifu Univ. Assist. Professor, 農学部(附属農場), 助手 (80242741)
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| Project Period (FY) |
1994 – 1995
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| Keywords | Grazing calf / Beef cattle / Energy metabolism of calf / Grassland / Grazing pasture / Pangola grass grazing / Red top grazing / Pleioblastus chino under grazing |
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| Research Abstract |
Growth rate of calf under grazing is often observed to vary with seasonal condition and species composition of pasture vegetation located in different places. The difference in growth rate of calves was anslysed in terms of energy conversion on four steps from solar energy input to available herbage growth, from herbage allowance to herbage intake, from digestible energy to calf growth.
The efficiency of conversion varied with season and with species of grasses. Calf growth rate was related to the efficiency from metabolisable energy to gain and the efficiency was related with plant species.
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