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 research was carried out to evaluate the quality of the roughage produced by hydroponics. Rice hulls and chopped elephantgrass were used as substrates for corn cultivation, put on plastic canvas. Corn seeding density was 2.5 kg of seed/m2. A randomized experimental design was used, with seven replications. Plot utile area measured 0.5 m x 0.5 m. Fertiirrigation was used from the 3rd to the 14th day after seeding. Harvest occurred at the 14th day and fresh forage productivity was determined. Three types of samples were taken: complete forage (shoot + root + substratum), substratum + roots, and shoot only. The following response variables were determined: DM concentration, CP, NDF, ADF, and ash. The rice hulls substratum resulted in higher DM production, NDF, ADF and ash concentration, while the chopped elephantgrass promoted greater CP concentration, although with low DM concentration. The CP presented inverse relationship with DM concentration and its components: NDF, ADF and ash.
Hydroponic corn forage produced on different substrates
Campêlo,José Elivalto Guimarães and Oliveira,José Crisóstomo Gomes de and Rocha,André da Silva and Carvalho,José Francisco de and Moura,Geyson Coutinho and Oliveira,Maria Elizabete de and Silva,José Algaci Lopes da and Moura,José Wilson da Silva and Costa,Valter Marchão and Uchoa,Lindomar de Morais. Hydroponic corn forage produced on different substrates. R. Bras. Zootec. [online]. 2007, vol.36, 2, [cited 2026-03-07], pp.276-281. Available from: <https://rbz.org.br/article/hydroponic-corn-forage-produced-on-different-substrates/>. ISSN 1516-3598. http://doi.org/10.1590/S1516-35982007000200002.
Campêlo,José Elivalto Guimarães; Oliveira,José Crisóstomo Gomes de; Rocha,André da Silva; Carvalho,José Francisco de; Moura,Geyson Coutinho; Oliveira,Maria Elizabete de; Silva,José Algaci Lopes da; Moura,José Wilson da Silva; Costa,Valter Marchão; Uchoa,Lindomar de Morais. Hydroponic corn forage produced on different substrates. R. Bras. Zootec., v.36, 2, p. 276-281. Apr. 2007. Available from: <https://rbz.org.br/article/hydroponic-corn-forage-produced-on-different-substrates/>. acess on 07 Mar. 2026. http://doi.org/10.1590/S1516-35982007000200002.
Campêlo,José Elivalto Guimarães, & Oliveira,José Crisóstomo Gomes de, & Rocha,André da Silva, & Carvalho,José Francisco de, & Moura,Geyson Coutinho, & Oliveira,Maria Elizabete de, & Silva,José Algaci Lopes da, & Moura,José Wilson da Silva, & Costa,Valter Marchão, & Uchoa,Lindomar de Morais. (2007). Hydroponic corn forage produced on different substrates. R. Bras. Zootec., 36(2) , 276-281. http://doi.org/10.1590/S1516-35982007000200002.
CampêloJosé Elivalto Guimarães, OliveiraJosé Crisóstomo Gomes de, RochaAndré da Silva, CarvalhoJosé Francisco de, MouraGeyson Coutinho, OliveiraMaria Elizabete de, SilvaJosé Algaci Lopes da, MouraJosé Wilson da Silva, CostaValter Marchão, UchoaLindomar de Morais. Hydroponic corn forage produced on different substrates. R. Bras. Zootec. [Internet]. 2007 Apr [cited 2026 Mar 07]; 36(2): 276-281. Available from: https://rbz.org.br/article/hydroponic-corn-forage-produced-on-different-substrates/. http://doi.org/10.1590/S1516-35982007000200002.
Figure 3
Ruminal disappearance of ash-free neutral detergent fiber (aNDFom) at 30 h of in situ incubation in corn husks (fresh and ensiled) treated with calcium oxide (CaO) and a mixture of corn heavy steep water and sugarcane molasses (HM).
