The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
This experiment was carried out to assess the fecal recuperation of the following internal markers: acid insoluble ash (AIA), acid detergent insoluble ash (ADIA), indigestible acid detergent fiber (IADF), indigestible neutral detergent fiber (INDF), and the apparent digestibility of dry matter (DM) and organic matter (OM). Four castrated sheep were used, fed with four levels of substitution of corn by cassava by-product meal. The feed samples, orts and feces were incubated in situ for 192 hours in three Holstein cows with ruminal cannula to determine the indigestible neutral detergent fiber and indigestible acid detergent fiber. The fecal recuperation of AIA and INDF were not different from 100% and had values for the digestibility coefficient of DM and OM similar to those obtained by the total feces collection method. The fecal recuperation of ADIA and IADF differed from 100%.
Fecal Recuperation of Internal Markers in Assay with Ruminants
Zeoula,Lúcia Maria and Prado,Ivanor Nunes do and Dian,Paulo Henrique Moura and Geron,Luiz Juliano Valério and Neto,Saul Ferreira de Caldas and Maeda,Emylin Midore and Peron,Paula Dal Pra and Marques,Jair de Araujo and Falcão,Alencariano José da Silva. Fecal Recuperation of Internal Markers in Assay with Ruminants. R. Bras. Zootec. [online]. 2002, vol.31, 4, [cited 2026-04-24], pp.1865-1874. Available from: <https://rbz.org.br/article/fecal-recuperation-of-internal-markers-in-assay-with-ruminants/>. ISSN 1516-3598. https://doi.org/10.1590/S1516-35982002000700030.
Zeoula,Lúcia Maria; Prado,Ivanor Nunes do; Dian,Paulo Henrique Moura; Geron,Luiz Juliano Valério; Neto,Saul Ferreira de Caldas; Maeda,Emylin Midore; Peron,Paula Dal Pra; Marques,Jair de Araujo; Falcão,Alencariano José da Silva. Fecal Recuperation of Internal Markers in Assay with Ruminants. R. Bras. Zootec., v.31, 4, p. 1865-1874. Jul. 2002. Available from: <https://rbz.org.br/article/fecal-recuperation-of-internal-markers-in-assay-with-ruminants/>. acess on 24 Apr. 2026. https://doi.org/10.1590/S1516-35982002000700030.
Zeoula,Lúcia Maria, & Prado,Ivanor Nunes do, & Dian,Paulo Henrique Moura, & Geron,Luiz Juliano Valério, & Neto,Saul Ferreira de Caldas, & Maeda,Emylin Midore, & Peron,Paula Dal Pra, & Marques,Jair de Araujo, & Falcão,Alencariano José da Silva. (2002). Fecal Recuperation of Internal Markers in Assay with Ruminants. R. Bras. Zootec., 31(4) , 1865-1874. https://doi.org/10.1590/S1516-35982002000700030.
ZeoulaLúcia Maria, PradoIvanor Nunes do, DianPaulo Henrique Moura, GeronLuiz Juliano Valério, NetoSaul Ferreira de Caldas, MaedaEmylin Midore, PeronPaula Dal Pra, MarquesJair de Araujo, FalcãoAlencariano José da Silva. Fecal Recuperation of Internal Markers in Assay with Ruminants. R. Bras. Zootec. [Internet]. 2002 Jul [cited 2026 Apr 24]; 31(4): 1865-1874. Available from: https://rbz.org.br/article/fecal-recuperation-of-internal-markers-in-assay-with-ruminants/. https://doi.org/10.1590/S1516-35982002000700030.
Figure 6
Differential abundance for the species Faecalibacterium prausnitzii (A) and Megamonas funiformis (B).
