RESEARCHES REGARDING CONSUMPTION SPEED OF FORAGES IN MULTIPAROUS ROMANIAN BLACK AND WHITE COWS DURING COLD SEASON. 2. ADMINISTRATION OF RATION IN THREE PORTIONS

D. GAVOJDIAN, G. STANCIU, L.T. CZISZTER, I. TRIPON, S. ACATINCĂI, SILVIA ERINA

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.


Keywords


intake rate; forages; portion; Romanian Black and White; cows

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LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
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FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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