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Effect of applying molasses or inoculants containing homo-fermentative or hetero-fermentative bacteria at two rates on the fermentation and aerobic stability of com silage

This study determined how the fermentation and aerobic stability of corn silage are affected by treatment with molasses or 2 dual-purpose inoculants applied at or above the recommended rate. Corn forage (DeKalb 69–70) was harvested at 39% dry matter (DM) and ensiled after treatment with no additives...

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Published: 2009
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LEADER 00000njm a2000000a 4500
001 oai:repository.ui.edu.ng:123456789/5567
042 |a dc 
720 |a Huisden, C. M.  |e author 
720 |a Adesogan, A. T.  |e author 
720 |a Kim, S. C.  |e author 
720 |a Ososanya, T.  |e author 
260 |c 2009 
520 |a This study determined how the fermentation and aerobic stability of corn silage are affected by treatment with molasses or 2 dual-purpose inoculants applied at or above the recommended rate. Corn forage (DeKalb 69–70) was harvested at 39% dry matter (DM) and ensiled after treatment with no additives (control, CON), molasses (MOL), Buchneri 500 inoculant, or Pioneer 11C33 inoculant. Molasses was applied at 3% of forage DM. Buchneri 500 was applied at the recommended rate of 8 mg/kg fresh forage to supply 1 × 10(5) cfu/g of Pediococcus pentosaceus 12455 and 4 × 10(5) cfu/g of Lactobacillus buchneri 40788 (BB) or at twice the recommended rate (DBB). Pioneer 11C33 inoculant was applied at the recommended rate of 1.1 mg/kg fresh forage to supply 1 × 10(5) cfu/g of a mixture of Lactobacillus plantarum, L. buchneri, and Enteroccocus faecium (PN) or at twice the recommended rate (DPN). Each treatment was applied in quadruplicate and the treated forages were ensiled within 20-L mini silos for 135 d at 18 to 35°C. Molasses-treated silages had greater ash and starch concentrations than CON silages and greater lactate and ethanol concentrations than other silages. Like CON silages, MOL silages had high yeast counts (>10(5) cfu/g); consequently, they deteriorated within 30h as shown by temperature increase. Inoculant-treated silages had lower lactate to acetate ratios than CON or MOL silages largely because they had greater acetate concentrations. Consequently, all inoculant-treated silages had fewer yeasts (<10(5) cfu/g) and were more stable (>30 h) than CON and MOL silages. When applied at recommended rates, PN and BB had similar effects on silage chemical composition, fermentation, fungal counts, and aerobic stability, except for a lower lactate concentration in PN silages. Concentrations of VFA, and NH3-N, pH, and extent of aerobic stability were similar for PN, DPN, BB, and DBB silages. However, lactate concentration was greater in DPN than in PN. In conclusion, MOL application increased ethanol and lactate concentration and did not improve aerobic stability. Both dual-purpose inoculants made the fermentation more heterolactic and thereby improved the aerobic stability of corn silage. Doubling the rate of application of either inoculant did not further improve fermentation or aerobic stability. 
024 8 |a 1525-3198 
024 8 |a 0022-0302 
024 8 |a ui_art_huisden_effect_2009 
024 8 |a Journal of Dairy Science 92, pp. 690-697 
024 8 |a http://ir.library.ui.edu.ng/handle/123456789/5567 
653 |a Aerobic stability 
653 |a Silage 
653 |a Lactobacillus buchneri 
653 |a Molasses 
245 0 0 |a Effect of applying molasses or inoculants containing homo-fermentative or hetero-fermentative bacteria at two rates on the fermentation and aerobic stability of com silage