Características nutricionales y fermentativas de mezclas ensiladas de desechos de piña y avícolas
Date
Authors
Gutiérrez, Francisco
Rojas Bourrillón, Augusto
Dormond Herrera, Herbert
Poore, Mathew
WingChing Jones, Rodolfo
Journal Title
Journal ISSN
Volume Title
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Abstract
Mediante el uso de microsilos se analizó
las características fermentativas y nutricionales
de ensilajes de mezclas de desechos frescos de
piña y avícolas. Las mezclas se establecieron en
relación base fresca de 100% piña; 90:10; 80:20
y 70:30 piña: pollinaza, respectivamente, con 5
repeticiones por tratamiento. Los ensilajes se
prepararon simulando el manejo de silos comerciales, colocando los materiales en capas de tal
manera que la capa superior e inferior fueron de
desechos de piña. La adición creciente de pollinaza incrementó los contenidos de materia seca,
proteína cruda, fibra detergente ácido, lignina, silice y elementos minerales mayores y trazas.
Contrariamente, la inclusión de pollinaza redujo
los contenidos de extracto etéreo, fibra detergente neutro, hemicelulosa, celulosa y la digestibilidad in vitro de la materia seca. La inclusión de
pollinaza en la mezcla aumentó los valores de pH,
nitrógeno amoniacal, ácido butírico y redujo los
contenidos de ácido láctico, etanol y ácido acético de los ensilajes. Se concluye que la mezcla
90:10 desechos de piña y pollinaza presenta las
mejores características fermentativas (pH: 3,62;
NH3-N/N total: 16%; ácido láctico 3,19% MS; ácido butírico 0,06% MS) y nutricionales con un
valor de DIVMS de 79%; y contenidos de 13%
MS; 11% PC; 2% EE; 65% FDN; 15% CNE;
35% FDA; 30% hemicelulosa; 30% celulosa;
3,9% lignina; 0,43% silice; 1,28% de Ca; 0,73%
de P y 0,20% de Mg.
By using laboratory silos, mixtures of pinneaple waste and poultry litter were ensiled during 60 days to study fermentation and quality characteristics. Ratios of pinneaple and poultry litter used were based on 100% pinneaple; 90:10; 80:20 and 70:30 wet basis, respectively. Materials were arranged on layers in such a way that the upper and lower were pinneaple waste. The addition of poultry litter in the mixture increased dry matter, crude protein, ADF, lignin, silica and mineral content of the silages, but decreased ether extract, NDF, hemicellulose, cellulose and IVDMD. Addition of poultry litter increased silage pH, ammonia nitrogen, butiric acid content and decreased lactic acid, acetic acid and ethanol concentrations. It is concluded that a mixture of 90:10 of pinneaple waste and poultry litter resulted on good fermentation silages with pH values of 3.62, 16% amonia-nitrogen; lactic acid 3.19 %DM, and, butiric acid 0.06%DM. The nutrient content of this silage was 13% DM, 10% CP, 2% EE, 65% FND, 15% NSC, 35% FAD, 30% hemicellulose, 30% cellulose, 3.9% lignin, 0.43% silica, 1.28% Ca, 0.73% P, 0.20% Mg and 79% IVDM digestibility.
By using laboratory silos, mixtures of pinneaple waste and poultry litter were ensiled during 60 days to study fermentation and quality characteristics. Ratios of pinneaple and poultry litter used were based on 100% pinneaple; 90:10; 80:20 and 70:30 wet basis, respectively. Materials were arranged on layers in such a way that the upper and lower were pinneaple waste. The addition of poultry litter in the mixture increased dry matter, crude protein, ADF, lignin, silica and mineral content of the silages, but decreased ether extract, NDF, hemicellulose, cellulose and IVDMD. Addition of poultry litter increased silage pH, ammonia nitrogen, butiric acid content and decreased lactic acid, acetic acid and ethanol concentrations. It is concluded that a mixture of 90:10 of pinneaple waste and poultry litter resulted on good fermentation silages with pH values of 3.62, 16% amonia-nitrogen; lactic acid 3.19 %DM, and, butiric acid 0.06%DM. The nutrient content of this silage was 13% DM, 10% CP, 2% EE, 65% FND, 15% NSC, 35% FAD, 30% hemicellulose, 30% cellulose, 3.9% lignin, 0.43% silica, 1.28% Ca, 0.73% P, 0.20% Mg and 79% IVDM digestibility.
Description
Keywords
DESPERDICIO AGRÍCOLA, Pollinaza, Ensilaje, NUTRICIÓN, Pineapple waste, Poultry litter, Silage, NUTRITION