On-line version ISSN 1678-4596
CRANCIO, Leonardo Araripe et al. Heifers weight gain on Serra do Sudeste native pasture in RS, submitted to undesirable plants control and grazing intensities. Cienc. Rural [online]. 2006, vol.36, n.4, pp. 1265-1271. ISSN 1678-4596. http://dx.doi.org/10.1590/S0103-84782006000400034.
This work aimed to evaluate the effect of different undesirable plants controlling methods and grazing intensities on animal production in native pastures. The treatments were no control (T), spring clipping (P), autumn clipping (O) and chemical control (Q), under two levels of forage allowance, medium (8%) and high (14%), expressed in kg of dry matter offered daily per each 100kg of liveweight. The experimental design was a completely randomized block arranged in a factorial with two repetitions. Statistical analysis showed no interaction among treatments nor differences among control methods for variables concerning primary and secondary production (P>0.1). Animal performance in both forage allowances was not different (P>0.1). High forage allowances increased animal performance per unit area (P<0.1).
Keywords : chemical control; herbage allowance; clipping.