Aiming to evaluate the effects of including millet (Pennisetum americanum) in diets for piavuçu, Leporinus macrocephalus, were utilized 240 fingerlings with initial weight of 1.38±0.03g, distributed in randomized blocks with six treatments (0.00; 6.00; 12.00; 18.00; 24.00 and 30.00% of millet in diets) and five replicates, in 30 net ponds (120L) installed in five cement abestos tanks (1,000L), with eight animals in each net ponds. There was no effect of millet inclusion on the final weight, weight gain, apparent alimentary […]

This experiment was undertaken to evaluate the effect of dietary tannin on growth performance and carcass composition of piauçu, for sixty days. Twenty one aquaria (80 L) were supplied with dechlorinated tap-water (1 L/min) in a closed system. Water quality was controled by biologic filter and heater. Fish, with inicial average weight 5.06 g, in a triplicate aquaria, were randomly assigned to each of 7 treatments. Experimental diets were formulated to contain approximately 3,200 kcal of digestible energy, 30% crude […]

ABSTRACT – The objective of this work was to evaluate the effects of the replacement of the protein from soybean meal (SM) by protein from canola meal (CM) in diets for piavuçu fry (Leporinus macrocephalus). Two hundred and eighty-eight fry with initial 0.17±.03 g LW and length of 2.95±.19 cm were allotted to 24 aquarium, (50-L) with 12 fish in each one. A completely randomized design with six treatments (0, 20.0, 40.0, 60.0, 80.0, and 100.0%), which corresponded to 0.0, […]