Scientific Papers Animal Science and Biotechnologies (Nov 2023)
RESEARCHES REGARDING CONSUMPTION SPEED OF FORAGES IN MULTIPAROUS ROMANIAN BLACK AND WHITE COWS DURING COLD SEASON. 2. ADMINISTRATION OF RATION IN THREE PORTIONS
Abstract
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.
