RESEARCHES REGARDING CONSUMPTION SPEED OF FORAGES IN MULTIPAROUS ROMANIAN BLACK AND WHITE COWS DURING COLD SEASON. 2. ADMINISTRATION OF RATION IN THREE PORTIONS
Keywords:
intake rate, forages, portion, Romanian Black and White, cowsAbstract
Two experiments were conducted to examine the effect that the order of
administrating forages into the portion has on the consumption speed of the
forages. Experiments A (order corn silage-pasture hay) and B (order pasture
hay-corn silage) involved 10 multiparous Romanian Black and White cows.
Cows were in their first 100 days of lactation and were housed in a tied
stanchion barn 24 hours per day. Ration offered comprised corn silage (20
kg), pasture hay (8 kg), concentrates (3 kg) and brewer’s yeast (2 kg). Cows
were fed three times per day, at 7:00, 13:00 and 19:00. Consumption speed
was calculated in minutes per kilograms of raw feed. Average consumption
speed values were calculated as follows: concentrates 3.04 min/kg, pasture
hay 25.45 min/kg, corn silage 4.96 min/kg and brewer’s yeast 2.34 min/kg.
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Journal of Dairy Science, vol 87, no. 10, 3417-3427.
