The use of crude glycerin as an alternative to reduce fermentation losses and enhance the nutritional value of Piata grass silage

被引:0
|
作者
Previdelli Orrico Junior, Marco Antonio [1 ]
Velazquez Duarte, Jose Augusto [2 ]
Crone, Carla [1 ]
Neves, Franciely de Oliveira [1 ]
Reis, Ricardo Andrade [3 ]
Amorim Orrico, Ana Carolina [1 ]
Schwingel, Alice Watte [4 ]
Vilela, Danielle Marques [5 ]
机构
[1] Fundacao Univ Fed Grande Dourados, Fac Ciencias Agr, Dourados, MS, Brazil
[2] Univ Nacl Asuncion, Fac Ciencias Agr, Pedro Juan Caballero, Paraguay
[3] Univ Estadual Paulista, Fac Ciencias Agr & Vet, Dept Zootecnia, Jaboticabal, SP, Brazil
[4] Univ Estadual Paulista, Fac Ciencias Agr, Botucatu, SP, Brazil
[5] Fundacao Univ Fed Grande Dourados, Fac Ciencias Biol & Ambientals, Dourados, MS, Brazil
关键词
biodiesel; byproduct; forage conservation; glycerol; ruminants; LACTIC-ACID BACTERIA; AEROBIC STABILITY; INCLUSION LEVELS; SUGAR-CANE; QUALITY; METABOLISM; MOLASSES; HERBAGE; FORAGE; CORN;
D O I
10.1590/S1806-92902017000800002
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The objective of this study was to evaluate fermentation losses and the nutritional value of silage of Brachiaria brizantha cv BRS Piata ensiled with different levels of crude glycerin. The experiment followed a 4 x 2 completely randomized factorial design with four doses of crude glycerin (0, 100, 200, and 300 g kg(-1) of DM silage) and two cutting ages (45 and 60 days) with four replicates per treatment (silos). The parameters of dry matter losses, effluents losses, gas losses, pH, microbial population, and nutritional value of the silage were evaluated. There was no difference in pH among the tested doses of crude glycerin. However, reductions in dry matter and gas losses were observed as a function of crude glycerin doses. Bacterial populations of lactic acid and facultative mesophilic anaerobes also increased as a function of crude glycerin inclusion. Crude glycerin increased ether extract levels and reduced neutral detergent fiber and acid detergent fiber concentrations (dilution effect), improving chemical composition of the silage. Crude glycerin can be used in the ensiling of Piata grass and the dose of 300 g kg(-1) of DM yields the best results.
引用
收藏
页码:638 / 644
页数:7
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