Multienzyme complex in rations containing whole rice bran for newly weaned piglets
Juliano Pelição Molino A * , Rita da Trindade Ribeiro Nobre Soares B , Ricardo Augusto Mendonça Vieira B , Raphael Pires Bolzan C , José Geraldo Vargas Junior D and Rodrigo Fortunato de Oliveira
B *
A Federal Institute of Espírito Santo – Mountain Campus, Palhinha – Highway ES-130, Km 1, Montanha, ES 29890-000, Brazil.
B State University of Norte Fluminense Darcy Ribeiro, Center for Agricultural Science and Technology, Laboratory of Animal Science and Nutrition (LZNA), Avenida Alberto Lamego, 2000 – Parque California, Campos dos Goytacazes, RJ CEP: 28013-602, Brazil.
C Federal Institute of Espírito Santo, Highway ES-482 (Cachoeiro-Alegre) Km 47 Rive, Alegre, ES 29500-000, Brazil.
D Federal University of Espirito Santo – Alegre Campus, High University, S/N Guararema, Alegre, ES 29500-000, Brazil.
Handling Editor: Elizabeth Hines
Animal Production Science 62(17) 1720-1728 https://doi.org/10.1071/AN21557
Submitted: 29 October 2021 Accepted: 7 July 2022 Published: 1 August 2022
© 2022 The Author(s) (or their employer(s)). Published by CSIRO Publishing
Abstract
Context: The feeding of pigs raised in an intensive system has been made, in general, with rations formulated using corn and soybean meal as the main ingredients. Brown rice bran, a by-product of the processing of rice grains for human consumption, presents itself as an alternative for total or partial replacement.
Aims: The objective of the present study was to observe the effects of including 10% of whole rice bran (WRB), adding 0.02% exogenous multienzyme complex (MC) and changing the levels of metabolisable energy and available phosphorus (ME.aP) together in rations for newly weaned piglets.
Methods: Digestibility and metabolisability of the rations, as well as zootechnical performance, were evaluated using 24 and 144 animals respectively, distributed in randomised blocks in time, with eight treatments, in a 2 × 2 × 2 factorial scheme. Three repetitions were used in the metabolism essay, with one animal housed per cage, and six repetitions were made in the performance test, with three animals per stall, which was considered the experimental unit. Digestibility and metabolisability coefficients, weight gain and feed intake, as well as feed efficiency, were evaluated.
Key results: The results showed that the inclusion of WRB reduced the digestibility and metabolisability coefficients of the rations, while the addition of MC provided an improvement in these indexes. The performance test showed that the inclusion of WRB worsened (P < 0.05) the feed efficiency.
Conclusions and implications: The multienzyme complex improves the digestibility and metabolisability of experimental rations, although it does not influence the performance of piglets in the nursery phase.
Keywords: alternative food, digestibility, exogenous enzymes, metabolisability, phosphorus, pig nutrition, pig weaning, whole rice bran.
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