Different dry matters content used for the conservation of annual ryegrass (Lolium multiflorum Lam.) in anaerobic environment

Taiani Ourique Gayer; Neliton Flores Kasper; Leonardo Ereno Tadielo; Rodrigo Holz Krolow; Eduardo Bohrer de Azevedo; Ricardo Pedroso Oaigen; Deise  Dalazen Castagnara

doi:10.5897/AJAR2018.13675

African Journal of
Agricultural Research

Abbreviation: Afr. J. Agric. Res.
Language: English
ISSN: 1991-637X
DOI: 10.5897/AJAR
Start Year: 2006
Published Articles: 6853

Full Length Research Paper

Different dry matters content used for the conservation of annual ryegrass (Lolium multiflorum Lam.) in anaerobic environment

Taiani Ourique Gayer

Taiani Ourique Gayer
Department of Veterinary Medicine, Federal University of Pampa, Uruguaiana, RS, Brazil.
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Neliton Flores Kasper

Neliton Flores Kasper
Department of Veterinary Medicine, Federal University of Pampa, Uruguaiana, RS, Brazil.
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Leonardo Ereno Tadielo

Leonardo Ereno Tadielo
Graduate Program in Animal Science, Federal University of ParanÃ¡ - UFPR, Sector Palotina, PR, Brazil.
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Rodrigo Holz Krolow

Rodrigo Holz Krolow
Department of Veterinary Medicine, Federal University of Pampa, Uruguaiana, RS, Brazil.
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Eduardo Bohrer de Azevedo

Eduardo Bohrer de Azevedo
Department of Agronomy, Federal University of Pampa, Itaqui, RS, Brazil.
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Ricardo Pedroso Oaigen

Ricardo Pedroso Oaigen
1Department of Veterinary Medicine, Federal University of Pampa, Uruguaiana, RS, Brazil.
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Deise Dalazen Castagnara

Deise Dalazen Castagnara
Department of Veterinary Medicine, Federal University of Pampa, Uruguaiana, RS, Brazil.
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Article Number - C0B84DA60208
Vol.14(6), pp. 369-378 , February 2019
https://doi.org/10.5897/AJAR2018.13675

Received: 26 October 2018
Accepted: 31 January 2019
Published: 07 February 2019

Abstract

Annual ryegrass (Lolium multiflorum Lam.) is widely used for feeding ruminants, and the conservation of this material as haylage can be an alternative to farms. The aim of this work is to study the nutritional and microbiological value of annual ryegrass (L. multiflorum Lam.) pre-dried and stored with different dry matter contents (250, 350, 450, 550, 650 and 750 g kg-1) in anaerobic environment. The experimental design was completely randomized with six treatments and four replications. The pH presented at the time of opening of the silos showed a linear increase of 0.003 pH units for each 1 g kg-1 of dry matter increase in ryegrass, as the materials with contents above 550 g kg-1 of dry matter showed a pH above the desired pH. Materials containing 650 and 750 g kg-1 dry matter showed the lowest concentrations of NH3-N. This fact indicates that haylages with higher levels of dry matter present lower protein losses after aerobic exposure. The increase in dry matter contents of the treatments provided higher crude protein contents to the materials (being 112.91 g kg-1 of dry matter) in the treatment with 750 g kg-1 of dry matter. The best results for the proliferation of LABs and efficiency in pH decrease were in the treatment with 450 g kg-1 of dry matter.

Key words: Haylage, chemical composition, Lolium multiflorum, silage, microorganism.