 | Abstract 641VARIACION DEL PESO VIVO Y DE LA PRODUCCION LACTEA DE VACAS MESTIZAS (Bos taurus x Bos indicus) SUPLEMENTADAS CON BLOQUES DE UREA-MELAZA DURANTE LA ESTACION LLUVIOSA [Variation in live weight and milk production of crossbred cows (Bos taurus x Bos indicus) supplemented with molasses/urea blocks during the rainy season]Juan Becerra* y Adriana David**, *Universidad de Córdoba, AA 1239, Monteria, Colombia. **ICA, Turipaná, AA 339, Pasto, Colombia. Livestock Research for Rural Development 1991 3(2): 8-12. During a 94-day period, in the rainy season, a group of four crossbred cows had access to a multinutritional block (10% urea, 30% molasses, 5% minerals) during a limited period of 3 hours daily following milking. A similar group was unsupplemented and served as controls. During the remainder of the day all animals grazed pastures of Brachiaria mutica and Digitaria decumbens. Milk production was 4.38 and 4.19 (SE ±0.61 ) kg/day and liveweight change 0.42 and 0.048 (SE ±0.19) kg/day, for the supplemented and control groups respectively. This abstract relates to the following species:
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