Lmc. Salviano, CROP RESIDUES FROM CORN AND COWPEA AS FODDER FOR STEERS BROWSING CAATINGA PASTURE, Pesquisa agropecuaria brasileira, 26(10), 1991, pp. 1815-1821
Zebu type steers, browsing a caatinga pasture on a 6 ha/head/year stoc
king rate were allocated to supplementation with crop residues, in the
following treatments: T1 = corn crop residues (CCR); T2 CCR + cowpea
(Vigna unguiculata) fodder (CF) in the proportion 1:1; and T3 = CF. Th
e fodder was furnished by the onset of the animal weight losses in the
dry season. A forth group of steers was kept in the same area but wit
hout any supplement. The research lasted two years (1982-83). There wa
s no difference among treatments in fodder intake and the average was
1.44 and 2.06 kg/100 kg liveweight for 1982 and 1983, respectively. Th
e daily weight gain (kg) for treatments T1, T2 and T3 was, respectivel
y, 0.02, 0.10 and 0.17 in 1982, and 0.07, 0.12 and 0.23 in 1983. There
was difference among treatments only in 1982 and in the joint analysi
s of both years, with T3 (RCF) being statistically superior (P/0,05) t
o T1 (CCR), but there were no difference between these treatments and
T2 (CCR + CF). The steers not supplemented lost steadly weight in the
dry season, and had to receive fodder to survive. Corn and cowpea crop
residues may either reduce weight losses or permit gain of steers bro
wsing caatinga pasture during the dry season.