Apparent digestibility of conventional and alternative feedstuffs by hybrid tambacu juveniles

Abstract

The apparent digestibility coefficients (ADC's) of dry matter (DM), crude protein (CP), and gross energy (GE) of conventional feedstuffs (cottonseed meal-CSM, soybean meal-SBM, wheat bran-WHB, corn-COR) and regional alternative feedstuffs (common bean residue meal-CBR, mesquite meal-MES, pasta by-product meal-PBM) were determined for hybrid juvenile tambacu Colossoma macropomum × Piaractus mesopotamicus. The apparent DM and GE digestibility of feedstuffs decreased (p<0.05) as fiber content of the ingredients increased. No differences (p>0.05) were found among ADC's of PBM and COR. The lowest CP ADC among energy sources was observed in MES; the lowest CP ADC among plant protein sources was observed in CBR. Information about the ADC's of conventional and alternative feedstuffs for tambacu is essential to formulate low-cost diets and can contribute to regional development.

Manejo Da Adubação Na Cultura Do Milho Após Sucessão Com Tomateiro E Pastagens

“…Large producers have minimized these effects by purchasing feed directly from factories located in neighboring states. Another way to reduce producer expenses with food would be the use of alternative foods, complementary to feed (BICUDO et al, 2018;MMANDA et al, 2020), which has already been occurring.…”

Challenges in the aquaculture production chain in Curralinho, Marajó archipelago, Pará, Brazil

“…Large producers have minimized these effects by purchasing feed directly from factories located in neighboring states. Another way to reduce producer expenses with food would be the use of alternative foods, complementary to feed (BICUDO et al, 2018;MMANDA et al, 2020), which has already been occurring.…”

Protein‐sparing effect by dietary lipid increase in juveniles of the hybrid fish tambatinga (♀ Colossoma macropomum × ♂ Piaractus brachypomus )

“…In each diet, fish meal provided 400 g/kg of the dietary CP. Due to the lack of previous digestibility studies for tambatinga, the digestible energy of corn and soybean meal was estimated using the apparent digestibility coefficients for the hybrid fish tambacu ( C. macropomum female × Piaractus mesopotamicus male) determined by Bicudo, Araújo, Braga, Tonini, and Hisano (), while the digestible energy of fish meal was based on the apparent digestibility of this ingredient for pacu according to Abimorad, Squassoni, and Carneiro (). Tambacu and pacu were selected as reference species for the preparation of the experimental diets given their phylogenetic proximity and similar feeding habits to that of tambatinga.…”

“… Estimated using the apparent digestibility coefficients for tambacu (Bicudo et al, ) and fish meal for pacu (Abimorad et al, ). …”