Rumen dynamics of neutral detergent fiber in cattle fed low-quality tropical forage and supplemented with nitrogenous compounds
Cláudia Batista Sampaio,Edenio Detmann,Isis Lazzarini,Marjorrie Augusto de Souza,Mário Fonseca Paulino,Sebastião de Campos Valadares Filho +5 more
TLDR
The rumen flow of fibrous particles showed a linear-response-plateau pattern according to the CP levels in diets, and the degradation rate of potentially degradable NDF was linearly increased with the CP Levels in diets.Abstract:
The aim of this work was to evaluate the effects of supplementation with nitrogenous compounds on rumen dynamics of neutral detergent fiber (NDF) in cattle fed low-quality tropical forage. Five crossbred heifers with average live weight of 180 kg and fitted with rumen cannulae were used. The animals were fed ad libitum with signal grass (Brachiaria decumbens Stapf.) hay, which had crude protein (CP) content of 4.86% of dry matter (DM). The five treatments were proposed in order to raise the CP level of diets to 0, 2, 4, 6, and 8 percentile points above the CP level of the forage. The supplement was a mixture of urea, ammonium sulfate, and albumin (4.5:0.5:1.0, respectively). The experiment was carried out according to a 5 × 5 Latin square design, with five experimental periods. The average CP levels in the diets were: 5.19, 7.11, 8.60, 11.67, and 13.02% on DM basis. The potentially degradable NDF was linearly increased according to the CP levels in diet up to 6.97% of CP. From this point, there was stabilization of estimates (47.87% of NDF). The degradation rate of potentially degradable NDF was linearly increased with the CP levels in diets. The rumen flow of fibrous particles (L) showed a linear-response-plateau pattern according to the CP levels in diets. The plateau (maximum estimate) began on 7.24% of CP. The mean retention time in the rumen and the rumen fill effect of undegradable NDF were affect by the CP levels similarly to L, with plateau (minimum) beginning on 6.90 and 6.97% of CP, respectively.read more
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Evaluation of ruminal degradation profiles of forages using bags made from different textiles
Tiago Neves Pereira Valente,Edenio Detmann,Augusto César de Queiroz,Sebastião de Campos Valadares Filho,Daiany Iris Gomes,Janderson Florêncio Figueiras +5 more
TL;DR: In this article, the degradation profiles of dry matter (DM) and neutral detergent fiber (NDF) of different forages using nylon (50 µm), F57 (Ankom®) and non-woven textile (NWT - 100 g/m2) bags were evaluated.
Journal ArticleDOI
Intake and digestibility in cattle fed low-quality tropical forage and supplemented with nitrogenous compounds
Isis Lazzarini,Edenio Detmann,Edenio Detmann,Cláudia Batista Sampaio,Mário Fonseca Paulino,Mário Fonseca Paulino,Sebastião de Campos Valadares Filho,Sebastião de Campos Valadares Filho,Marjorrie Augusto de Souza,Fabrício Albani Oliveira +9 more
TL;DR: Objetivou-se avaliar os efeitos de compostos nitrogenados suplementares sobre o consumo, a digestibilidade e a sintese de proteina microbiana em bovinos alimentados com forragem tropical de baixa qualidade sobre os consumos de MS, materia orgânica (MO) e fibra em detergente neutro (FDN).
Journal ArticleDOI
Intake and digestibility in cattle fed low-quality tropical forage and supplemented with nitrogenous compounds
Cláudia Batista Sampaio,Edenio Detmann,Mário Fonseca Paulino,Sebastião de Campos Valadares Filho,Marjorrie Augusto de Souza,Isis Lazzarini,Pedro Veiga Rodrigues Paulino,Augusto César de Queiroz +7 more
TL;DR: The effects of supplementation with nitrogenous compounds on intake, digestibility, and microbial protein synthesis in cattle fed low-quality tropical forage were assessed and microbial nitrogen flow in the intestine was linearly and positively related with the CP levels in the diet.
Journal ArticleDOI
Intake, digestibility and rumen dynamics of neutral detergent fibre in cattle fed low-quality tropical forage and supplemented with nitrogen and/or starch.
Marjorrie Augusto de Souza,Edenio Detmann,Mário Fonseca Paulino,Cláudia Batista Sampaio,Isis Lazzarini,Sebastião de Campos Valadares Filho +5 more
TL;DR: It is observed that nitrogen supplementation increased the estimated weighted degradation rate of NDF by 14.8%, whilst starch supplementation decreased this rate by 32.5%.
Journal ArticleDOI
Degradação in vitro da fibra em detergente neutro de forragem tropical de baixa qualidade em função de suplementação com proteína e/ou carboidratos
Viviane Aparecida Carli Costa,Edenio Detmann,Sebastião de Campos Valadares Filho,Mário Fonseca Paulino,Lara Toledo Henriques,Hilário Cuquetto Mantovani +5 more
TL;DR: It was observed that the degradation rate of potentially degradable NDF (pdNDF) was increased almost 46% with casein supplementation, resulting in an increment of 14.6% on the effective degraded fraction.
References
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Journal ArticleDOI
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Journal ArticleDOI
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Journal ArticleDOI
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Journal ArticleDOI
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