ORIGINAL PAPER
The effects of feed blocks containing tomato and cucumber by-products on in vitro ruminal fermentation, microbiota, and methane production
 
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Experimental Station of Zaidín (CSIC, Spanish National Research Council), Profesor Albareda 1, 18008 Granada, Spain
CORRESPONDING AUTHOR
E. Molina-Alcaide   

Experimental Station of Zaidín (CSIC, Spanish National Research Council), Profesor Albareda 1, 18008 Granada, Spain
Publication date: 2013-09-02
 
J. Anim. Feed Sci. 2013;22(3):229–237
 
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ABSTRACT
The aim of this work was to evaluate in vitro the effect of replacing 0%, 50%, 75% or 100% of cereal-based concentrate in diets based on lucerne hay with feed blocks containing barley grain or 650 g · kg–1 fresh matter of greenhouse waste fruits (tomato, cucumber, or a 1:1 mixture of tomato and cucumber) on ruminal fermentation, methane production, and bacterial and methanogen population sizes. The type of feed-block showed no effect (p ≥ 0.25). The level of concentrate replacement with blocks did, however, affect (p ≤ 0.042) the pH, CH4 concentration, organic matter degradation rate, total gas, CH4 and total VFA production, acetate/propionate and CH4/total VFAs ratios, and molar proportions of acetate and butyrate, without changing (p ≤ 0.082) methanogen and total bacteria abundance. Increasing levels of concentrate replacement with feed blocks modified ruminal fermentation, dry matter and neutral detergent fibre digestibility, and had an antimethanogenic effect.
 
CITATIONS (3):
1.
Nutritive evaluation and milk quality of including of tomato or olive by-products silages with sunflower oil in the diet of dairy goats
A. Arco-Pérez, E. Ramos-Morales, D.R. Yáñez-Ruiz, L. Abecia, A.I. Martín-García
Animal Feed Science and Technology
 
2.
In vitro gas production and degradation kinetics of elephant grass silage with dried tamarind residue
D. Menezes, A. Barbosa, R. Rodrigues, F. Lista, T. Nascimento, S. Moraes, M. Queiroz, K. Busato
Journal of Animal and Feed Sciences
 
3.
Nutritive Value of Tomato Pomace for Ruminants and Its Influence on In Vitro Methane Production
Carlos Marcos, Evan de, Eduarda Molina-Alcaide, M. Carro
Animals
 
ISSN:1230-1388