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首页> 外文期刊>Turkish Journal of Agriculture & Forestry >Effects of microbial inoculants Enterococcus faecium EF2/3s and EF26/42 on microbial, chemical, and fermentation parameters in grass silage
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Effects of microbial inoculants Enterococcus faecium EF2/3s and EF26/42 on microbial, chemical, and fermentation parameters in grass silage

机译：微生物接种粪便肠球菌EF2 / 3s和EF26 / 42对青贮草中微生物，化学和发酵参数的影响

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Survival of inoculants in grass silages may enable them to improve the quality of silages through enrichment with polyunsaturated fatty acids (PUFAs). The effects of 2 inoculants, Enterococcus faecium 2/3s (EF2/3s) and E. faecium 26/42 (EF26/42), on nutrient composition, fermentation parameters, and fatty acid content in grass silages during ensiling (111 days) of fresh grass (G) were examined under laboratory conditions. The G [285 g of dry matter (DM) kg~(-1) ] was ensiled in 36 polyethylene jars (1 L) divided into 3 x 12 sets per treatment and ensiled at 21 °C for 111 days. The 3 silage treatments used were: 1) grass without inoculant (GS, control), 2) grass inoculated by the strain EF2/3s (GS+EF2/3s), and 3) grass inoculated by the strain EF26/42 (GS+EF26/42). The inoculant strains were sufficiently established during ensiling and reached 4.62 log_(10) cfu g~(-1) for EF2/3s and 3.76 log_(10) cfu g~(-1) for EF26/42 on day 111 of ensiling. Crude protein contents were G > GS+EF2/3s > GS+EF26/42 >GS (129,110,109, and 100 g kg~(-1) of DM, respectively). The lactate-to-acetate ratios were GS < GS+EF26/42 < GS+EF2/3s (2.82, 4.20, and 4.70, respectively). Concentrations of alpha-linolenic acid and gamma-linolenic acid were highest in grass before ensiling (P < 0.001). Higher isomer C18:2 (9,11) content (P < 0.01) was detected in GS+EF2/3s and GS+EF26/42 than in GS. Nutritional manipulation associated with Enterococcus faecium EF2/3s and EF26/42 inoculation of GS resulted in better quality of silages based on lower lactate (GS+EF26/42) and a greater lactic-to-acetic acid ratio (GS+EF2/3s and GS+EF26/42). This might positively affect PUFAs and their isomers.
机译：青贮饲料中孕育剂的生存可能使它们通过富含多不饱和脂肪酸（PUFA）来提高青贮饲料的质量。两种接种剂粪肠球菌2 / 3s（EF2 / 3s）和粪肠球菌26/42（EF26 / 42）对青贮青贮饲料（111天）中营养成分，发酵参数和脂肪酸含量的影响。在实验室条件下检查了鲜草（G）。将G [285g干物质（DM）kg·（-1）]青贮在36个聚乙烯罐（1L）中，每次处理分成3×12组，并在21℃青贮111天。使用的3种青贮饲料处理方法是：1）没有接种物的草（GS，对照），2）EF2 / 3s菌株（GS + EF2 / 3s）接种的草，和3）EF26 / 42菌株（GS +）接种的草EF26 / 42）。在接种过程中已充分建立了接种菌株，在接种第111天，EF2 / 3s达到了4.62 log_（10）cfu g〜（-1），EF26 / 42达到了3.76 log_（10）cfu g〜（-1）。粗蛋白含量为G> GS + EF2 / 3s> GS + EF26 / 42> GS（分别为129,110,109和100 g kg〜（-1）DM）。乳酸与乙酸酯之比为GS

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