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.
The ingestive behavior of beef heifers when submitted to different energy supplementation levels was evaluated. Heifers grazing Italian ryegrass (Lolium multiflorum Lam.) and black oat (Avena strigosa Schreb) pasture, were supplemented with wheat bran, supplied daily at 2 p.m. at levels of 0; 0.5; 1.0; 1.5% of live weight. The activities of grazing, rumination, idle and trough permanence, were recorded by visual observation, at a ten minute intervals, in four periods of 24 hours. For each supplementation level were allocated six animals of genetic groups Charolais, 3/4Charolais/Nellore and 5/8Nellore/Charolais, with eight months of age and 158 kg of initial weight. Supplemented animals reduced grazing time, compared with no supplemented animals, without changing estimated pasture consumption. Animals supplemented at 1.5% of live weight, spent longer time at trough and showed a higher visiting frequency. The supplementation levels did not interfere in rumination and idle times.
Ingestive behavior of beef heifers grazing oat (Avena strigosa Schreb) and ryegrass (Lolium multiflorum Lam) pasture under supplementation levels
Bremm,Carolina and Rocha,Marta Gomes da and Restle,João and Pilau,Alcides and Montagner,Denise Baptaglin and Freitas,Fabiana Kellermann de and Macari,Stefani and Elejalde,Denise Adelaide Gomes and Roso,Dalton and Roman,Juliano and Guterres,Éverton Pujol and Costa,Vagner Guasso da and Neves,Fábio Pereira. Ingestive behavior of beef heifers grazing oat (Avena strigosa Schreb) and ryegrass (Lolium multiflorum Lam) pasture under supplementation levels. R. Bras. Zootec. [online]. 2005, vol.34, 2, [cited 2026-04-23], pp.387-397. Available from: <https://rbz.org.br/article/ingestive-behavior-of-beef-heifers-grazing-oat-avena-strigosa-schreb-and-ryegrass-lolium-multiflorum-lam-pasture-under-supplementation-levels/>. ISSN 1516-3598. https://doi.org/10.1590/S1516-35982005000200005.
Bremm,Carolina; Rocha,Marta Gomes da; Restle,João; Pilau,Alcides; Montagner,Denise Baptaglin; Freitas,Fabiana Kellermann de; Macari,Stefani; Elejalde,Denise Adelaide Gomes; Roso,Dalton; Roman,Juliano; Guterres,Éverton Pujol; Costa,Vagner Guasso da; Neves,Fábio Pereira. Ingestive behavior of beef heifers grazing oat (Avena strigosa Schreb) and ryegrass (Lolium multiflorum Lam) pasture under supplementation levels. R. Bras. Zootec., v.34, 2, p. 387-397. Apr. 2005. Available from: <https://rbz.org.br/article/ingestive-behavior-of-beef-heifers-grazing-oat-avena-strigosa-schreb-and-ryegrass-lolium-multiflorum-lam-pasture-under-supplementation-levels/>. acess on 23 Apr. 2026. https://doi.org/10.1590/S1516-35982005000200005.
Bremm,Carolina, & Rocha,Marta Gomes da, & Restle,João, & Pilau,Alcides, & Montagner,Denise Baptaglin, & Freitas,Fabiana Kellermann de, & Macari,Stefani, & Elejalde,Denise Adelaide Gomes, & Roso,Dalton, & Roman,Juliano, & Guterres,Éverton Pujol, & Costa,Vagner Guasso da, & Neves,Fábio Pereira. (2005). Ingestive behavior of beef heifers grazing oat (Avena strigosa Schreb) and ryegrass (Lolium multiflorum Lam) pasture under supplementation levels. R. Bras. Zootec., 34(2) , 387-397. https://doi.org/10.1590/S1516-35982005000200005.
BremmCarolina, RochaMarta Gomes da, RestleJoão, PilauAlcides, MontagnerDenise Baptaglin, FreitasFabiana Kellermann de, MacariStefani, ElejaldeDenise Adelaide Gomes, RosoDalton, RomanJuliano, GuterresÉverton Pujol, CostaVagner Guasso da, NevesFábio Pereira. Ingestive behavior of beef heifers grazing oat (Avena strigosa Schreb) and ryegrass (Lolium multiflorum Lam) pasture under supplementation levels. R. Bras. Zootec. [Internet]. 2005 Apr [cited 2026 Apr 23]; 34(2): 387-397. Available from: https://rbz.org.br/article/ingestive-behavior-of-beef-heifers-grazing-oat-avena-strigosa-schreb-and-ryegrass-lolium-multiflorum-lam-pasture-under-supplementation-levels/. https://doi.org/10.1590/S1516-35982005000200005.
Figure 6
Differential abundance for the species Faecalibacterium prausnitzii (A) and Megamonas funiformis (B).
