Mineral concentration dynamics in milk during the lactation period of tsigay sheep
2005
Mikhajlova, G. | Grozeva, M. (Thracian University, Agricultural Faculty, Stara Zagora (Bulgaria)) | Gerchev, G.
During the period of the trial (April-July), the sheep were reared on pastures with various altitude: 500 m (in April), 800 m (in May and June) and 1500 m (in July), in sredna Stara planina mountain.In April, the animals were grazing and fed up with concentrate whereas during the other time they were only grazing. The influence of altitude, resp. the type of pasture where animals were reared, was the highest on milk content of the macro element magnesium and the trace elements iron and zinc. The influences of the month of study of sheep milk was the least in calciun, phosphorus, potassium, sodium and manganese concentratins and the uppermost - in magnesium, iron and zinc content.
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Эту запись предоставил Institute of Agricultural Economics