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EFFECTS OF COW SLURRY ON HERBAGE PRODUCTION, INTAKE BY CATTLE AND GRAZING BEHAVIOUR
Author(s) -
Pain B. F.,
Leaver J. D.,
Broom D.M.
Publication year - 1974
Publication title -
grass and forage science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 56
eISSN - 1365-2494
pISSN - 0142-5242
DOI - 10.1111/j.1365-2494.1974.tb01233.x
Subject(s) - slurry , grazing , zoology , milk production , environmental science , grassland , tonne , agronomy , biology , chemistry , environmental engineering , organic chemistry
Grassland plots were dressed with different amounts of cow slurry in January or March and grazed by dairy heifers at intervals from late April to August. In the first experiment slurry was applied at levels up to 56 tonnes/ha (22±4 tons/ac) in March. Total herbage DM production was directly proportional to the amount of slurry applied. There was no effect of treatment on percentage herbage utilization. In the second experiment slurry was applied at levels up to 100 t/ha (40 tons/ac) in January or in March. There was no significant effect of time or level of slurry application on herbage production or on animal intake, but the behaviour of the heifers was modified during the first eight weeks after plots had been dressed with 75 or 100 t/ha (30 or 40 tons/ac).