4 documents found, page 1 of 1
Intake, digestibility and rumen dynamics of neutral detergent fibre in cattle f...
Souza, Marjorrie A.; Detmann, Edenio; Paulino, Mário F.; Sampaio, Cláudia B.; Lazzarini, Ísis; Valadares Filho, Sebastião C.The objective of this work was to evaluate the effects of nitrogenous compounds and/or starch supplementation on the intake, digestibility and rumen dynamics of neutral detergent fibre (NDF) in cattle fed low-quality tropical forage. Four crossbred heifers (Holstein × Zebu) with a body weight 231.9 ± 15.5 kg and fitted with ruminal cannulae were used. The forage fed to the animals consisted of low-quality signa...
Parameterization of ruminal fibre degradation in low-quality tropical forage us...
Detmann, Edenio; Paulino, Mário F.; Mantovani, Hilário C.; Valadares Filho, Sebastião de C.; Sampaio, Cláudia B.; Souza, Marjorrie A. deThis work aimed to parameterize the ruminal degradation of neutral detergent fibre (NDF) from low-quality tropical forage using Michaelis–Menten kinetics. The intake, rumen outflow (L), fractional degradation rate (kd), discrete lag (LAG) and effective degradability (ED) of NDF, and the microbial flow of nitrogenous compounds into the small intestine (Nmic) were assessed in two 5 × 5 Latin square experiments by...
Nutritional performance of cattle grazing on low-quality tropical forage supple...
Lazzarini, Ísis; Edenio Detmann; Paulino, Mário Fonseca; Valadares Filho, Sebastião de Campos; Valadares, Rilene Ferreira DinizThe objective of this work was to evaluate the effects of protein and/or starch supplementation on the nutritional performance of cattle grazing on low-quality tropical forage. Five crossbred steers (Holstein × Gyr) with an average body weight (BW) of 397 kg that were fitted with ruminal and abomasal cannulae were used. The animals were kept in individual signal-grass (Bracharia decumbens) paddocks. Five treatm...
Nutritional performance of cattle grazing during rainy season with nitrogen and...
Lazzarini, Ísis; Detmann, Edenio; Valadares Filho, Sebastião de Campos; Paulino, Mário Fonseca; Batista, Erick Darlisson; Rufino, Luana Marta de AlmeidaThe objective of this work was to evaluate the effects of supplementation with nitrogen and starch on the nutritional performance of grazing cattle during the rainy season. Five rumen cannulated Nellore steers, averaging 211 kg of body weight (BW), were used. Animals grazed on five signal grass paddocks. Five treatments were evaluated: control (forage only), ruminal supplementation with nitrogen at 1 g of crude...