Determination of the mineral composition in agroindustrial by-products used in animal nutrition, by neutron activation analysis

Authors

  • José Cleto da Silva Filho
  • Maria José Aguirre Armelin
  • Aliomar Gabriel da Silva

DOI:

https://doi.org/10.1590/S1678-3921.pab1999.v34.5166

Keywords:

heavy metals

Abstract

This study aimed to analyze some agroindustrial by-products used to feed animals in order to identify the presence of the main minerals. Samples of cotton seed meal, rice, canola, soybean and wheat; fish meal, feather meal, meat meal, feather plus viscera meal; rinds of cotton, rice, orange; citrus pulp and tomato residue were collected in different sites of production of the by-products. The method of analysis used was the neutron activation followed by gamma ray spectrometry. The levels of minerals found in all samples were compared with the levels commonly found in forages. The mineral concentration, even those of the toxic elements, as As, Cd and Hg, was at low level and did not exceed the maximum tolerable levels for domestic animals.

Published

1999-02-01

How to Cite

Filho, J. C. da S., Armelin, M. J. A., & Silva, A. G. da. (1999). Determination of the mineral composition in agroindustrial by-products used in animal nutrition, by neutron activation analysis. Pesquisa Agropecuaria Brasileira, 34(2), 235–241. https://doi.org/10.1590/S1678-3921.pab1999.v34.5166

Issue

Section

ANIMAL NUTRITION