Record Details

Feeding strategies to increase nitrogen retention and improve rumen fermentation and rumen microbial population in beef steers fed with tropical forages

CGSpace

View Archive Info
 
 
Field Value
 
Title Feeding strategies to increase nitrogen retention and improve rumen fermentation and rumen microbial population in beef steers fed with tropical forages
 
Creator Durango Morales, Sandra Guisela
Barahona Rosales, Rolando
Bolívar Vergara, Diana María
Chirinda, Ngonidzashe
Arango, Jacobo
 
Subject dry matter
feed resources
nitrogen
bacteria
recursos de piensos
nitrógeno
leucaena leucocephala
tithonia diversifolia
 
Description The effect of the inclusion of Leucaena leucocephala and Tithonia diversifolia in Zebu steers receiving a diet based on improved pastures such as Brachiaria decumbens and Brachiaria hybrid cv Cayman on nitrogen (N) excretion, urinary volume and rumen microbial population was evaluated. To determine the dry matter intake and nutrient excretion, eight steers were used in a 4 × 4 Latin square design consisting of four periods and four diets. Four of them were cannulated for ruminal fluid extraction and quantification of ruminal microorganisms in three times of grazing (T0, T7 and T15). Forage intake was calculated through the external marker titanium dioxide. Diet including forages with superior protein content generated an increase in the gene copy numbers of Prevotella ruminicola and total bacteria on 15 sampling day (p < 0.001). Animals receiving diets with the dietary inclusion of Leucaena and Tithonia had daily N intakes of 228 and 113.5g N intake d−1, of which they excreted 42% and 61%, respectively. Inclusion of both protein forages increased daily urinary volume (9% and 7% d−1), with respect to the pasture-based diet. This study revealed that the inclusion of 18% Leucaena in a pasture-based diet improves the dry matter intake and N retention in Zebu steers under tropical conditions.
 
Date 2021-09-15
2021-10-06T09:05:03Z
2021-10-06T09:05:03Z
 
Type Journal Article
 
Identifier Durango, S.G.; Barahona, R.; Bolívar, D.; Chirinda, N.; Arango, J. (2021) Feeding strategies to increase nitrogen retention and improve rumen fermentation and rumen microbial population in beef steers fed with tropical forages. Sustainability 13(18):10312. ISSN: 2071-1050
2071-1050
https://hdl.handle.net/10568/115323
https://doi.org/10.3390/su131810312
PII-LAM_LivestockPlus
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format 10312
application/pdf
 
Publisher MDPI AG
 
Source Sustainability