Theme 2-3: Forage Production and Utilization--Poster Sessions
Description
Pearl millet (Pennisetum glaucum L.) stover is one of the main crop by-products in West Africa. To effectively use the crop by-product resources as roughage for ruminant to cover the feed shortage in the dry season, the millet stover silage was prepared using laboratory-scale fermentation system without (control) or with lactic acid bacteria inoculant (LP, Lactobacillus plantarum) and cellulase enzyme (AC, Acremonium) in Burkina Faso, and their fermentation characteristics and chemical composition were analyzed. The dry matter (DM) of fresh millet before ensiling was 44.3%, and their organic matter, crude protein (CP), ether extract, neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents were 92.34%, 0.72%, 3.75%, 69.04%, and 43.56% based on a DM basis, respectively. After 120 days of fermentation, the control silage was of poor quality, while the all additive-treated silages had good fermentation patterns, with higher (P < 0.05) lactic acid content and lower (P < 0.05) pH value, butyric acid and ammonia nitrogen contents than those of control. The silage was fermented as better quality in AC treatment than LP treatment, and the combination of LP and AC resulted in the synergistic fermentation effect. The CP content decreased in control silage, NDF and ADF contents decreased in AC-treated silage, while other chemical compositions did not differ greatly. All silages fermented stably and were not spoiled during ensiling. The results demonstrate that the millet could prepare silage as preserved feed for ruminant and the microbial additive could improve fermentation quality.
Included in
Silage Preparation and Fermentation Characteristics of Pearl Millet Stover Treated with Microbial Additive in West Africa
Pearl millet (Pennisetum glaucum L.) stover is one of the main crop by-products in West Africa. To effectively use the crop by-product resources as roughage for ruminant to cover the feed shortage in the dry season, the millet stover silage was prepared using laboratory-scale fermentation system without (control) or with lactic acid bacteria inoculant (LP, Lactobacillus plantarum) and cellulase enzyme (AC, Acremonium) in Burkina Faso, and their fermentation characteristics and chemical composition were analyzed. The dry matter (DM) of fresh millet before ensiling was 44.3%, and their organic matter, crude protein (CP), ether extract, neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents were 92.34%, 0.72%, 3.75%, 69.04%, and 43.56% based on a DM basis, respectively. After 120 days of fermentation, the control silage was of poor quality, while the all additive-treated silages had good fermentation patterns, with higher (P < 0.05) lactic acid content and lower (P < 0.05) pH value, butyric acid and ammonia nitrogen contents than those of control. The silage was fermented as better quality in AC treatment than LP treatment, and the combination of LP and AC resulted in the synergistic fermentation effect. The CP content decreased in control silage, NDF and ADF contents decreased in AC-treated silage, while other chemical compositions did not differ greatly. All silages fermented stably and were not spoiled during ensiling. The results demonstrate that the millet could prepare silage as preserved feed for ruminant and the microbial additive could improve fermentation quality.
