Utilization of ensiled Pistachio processing residues (FPPR) in the diet of fattening calves
2008
FroughAmeri , Nader
Fresh pistachio processing residues (FPPR) was mixed with 5 percent sugar beet molasses and ensiled for two month. In a completely randomized experiment, 24 Holstein male calves with initial weight of 218 :f: 13 kg were fed individuality with four experimental diets including I, 2, 3 and 4 where the corn silage was substituted by 0.0, 33, 66 and 100 percent of FPPR respectively. During three month experiment, dry mater intakes were 8.25 :f:0.53, 9.7 :f:0.71, 10.83 f:0.55 and 9.25 :f:0.03 kg for diets 1, 2, 3 and 4 respectively which were significantly (P0.05) different. The average feed conversion ratio ranged 6.82 :f:1.2- 9.76 :f:2.8 that was the lowest for diet 1 and the highest for diet 4 (P0.05). The average daily weight gain were 1195 :f: 151, 1299 :f:137, 1205 :f:89 and 946 :f:227 kg for diets 1, 2, 3 and 4 respectively which were significantly (P0.05) different between the treatments. The initial weighs were 217 :f:14, 219 :f:13, 219.13 and 220 :f:13 kg that were not significantly different but the final weights were 322 :f:21, 333 :f:15, 325 :f:14 and 303 :f:28 that was significantly (P0.05) the lowest for treatment 4. Generally, it is concluded that FPPR silage may be included in the diet up to 66 percent of corn silage portion, when the corn silage is used up to 40 percent of diet dry mater.
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