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 objective of this study was to evaluate the chemical composition, digestibility and in situ degradation of dry matter of the diet consumed by sheep grazing on Panicum maximum cv. Tanzania under three defoliation frequencies, determined by the interception of the photosynthetically active radiation in the canopy (PAR) of 85, 95 and 97% on the first and fourth days of the grazing period. A randomized complete design in a 3 × 2 factorial arrangement (three defoliation frequencies and two days grazing), with four replications (poles). To determine the chemical composition, digestibility and an in situ dry matter degradation trial, a grazing simulation was carried out on the 1st and 4th days. Reduced defoliation frequency decreased the chemical composition, digestibility and in situ degradation of the diet. Thus defoliation frequency of tanzania grass is recommended of less or equal to 95% photosynthetically active radiation to maintain pasture quality.
Chemical composition, digestibility and in situ degradation of sheep diet on Tanzania grass with three defoliation frequencies
Valente,Bruno Stefano Miranda and Cândido,Magno José Duarte and Junior,José Antonio Alves Cutrim and Pereira,Elzânia Sales and Bomfim,Marco Aurélio Delmondes and Feitosa,José Valmir. Chemical composition, digestibility and in situ degradation of sheep diet on Tanzania grass with three defoliation frequencies. R. Bras. Zootec. [online]. 2010, vol.39, 1, [cited 2026-03-15], pp.113-120. Available from: <https://rbz.org.br/article/chemical-composition-digestibility-and-in-situ-degradation-of-sheep-diet-on-tanzania-grass-with-three-defoliation-frequencies/>. ISSN 1516-3598. http://doi.org/10.1590/S1516-35982010000100015.
Valente,Bruno Stefano Miranda; Cândido,Magno José Duarte; Junior,José Antonio Alves Cutrim; Pereira,Elzânia Sales; Bomfim,Marco Aurélio Delmondes; Feitosa,José Valmir. Chemical composition, digestibility and in situ degradation of sheep diet on Tanzania grass with three defoliation frequencies. R. Bras. Zootec., v.39, 1, p. 113-120. Jan. 2010. Available from: <https://rbz.org.br/article/chemical-composition-digestibility-and-in-situ-degradation-of-sheep-diet-on-tanzania-grass-with-three-defoliation-frequencies/>. acess on 15 Mar. 2026. http://doi.org/10.1590/S1516-35982010000100015.
Valente,Bruno Stefano Miranda, & Cândido,Magno José Duarte, & Junior,José Antonio Alves Cutrim, & Pereira,Elzânia Sales, & Bomfim,Marco Aurélio Delmondes, & Feitosa,José Valmir. (2010). Chemical composition, digestibility and in situ degradation of sheep diet on Tanzania grass with three defoliation frequencies. R. Bras. Zootec., 39(1) , 113-120. http://doi.org/10.1590/S1516-35982010000100015.
ValenteBruno Stefano Miranda, CândidoMagno José Duarte, JuniorJosé Antonio Alves Cutrim, PereiraElzânia Sales, BomfimMarco Aurélio Delmondes, FeitosaJosé Valmir. Chemical composition, digestibility and in situ degradation of sheep diet on Tanzania grass with three defoliation frequencies. R. Bras. Zootec. [Internet]. 2010 Jan [cited 2026 Mar 15]; 39(1): 113-120. Available from: https://rbz.org.br/article/chemical-composition-digestibility-and-in-situ-degradation-of-sheep-diet-on-tanzania-grass-with-three-defoliation-frequencies/. http://doi.org/10.1590/S1516-35982010000100015.
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).
