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Physical, fermentative, and nutritional quality of silages made from three Sorghum bicolor varieties as affected by ensiling duration in South-west Nigeria

文献类型： 外文期刊

作者： Usman, Samaila 1 ; Dele, Peter Aniwe 2 ; Jimoh, Saheed Olaide 2 ; Aderinboye, Ronke Yemisi 5 ; Olanite, Jimoh Al 1 ;

作者机构： 1.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Lanzhou 730020, Peoples R China

2.Fed Univ Agr, Dept Pasture & Range Management, Abeokuta, Ogun State, Nigeria

3.Chinese Acad Agr Sci, Grassland Res Inst, Key Lab Grassland Ecol & Restorat, Minist Agr, 120 East Wulanchabu St, Hohhot 010010, Inner Mongolia, Peoples R China

4.Sustainable Environm Food & Agr Initiat, Lagos 104101, Nigeria

5.Fed Univ Agr, Dept Anim Nutr, Abeokuta, Ogun State, Nigeria

关键词： Livestock; Forage; Nutrition; Gas production; Digestibility

期刊名称：TROPICAL ANIMAL HEALTH AND PRODUCTION （ 影响因子：1.333； 五年影响因子：1.296 ）

ISSN： 0049-4747

年卷期： 2021 年 53 卷 2 期

页码：

收录情况： SCI

摘要： Despite large-scale sorghum production in Nigeria, its utilization as livestock feed is limited to the stover following grain harvest. Therefore, we evaluated the physical, fermentative, and nutritive quality of whole-crop silages from three Sorghum bicolor varieties at different ensiling durations. The experiment was 3x5 factorial comprising three varieties (Samsorg14, Samsorg17, and Samsorg41) and five ensiling durations (0, 4, 8, 12, and 16 weeks). Forages were ensiled at the dough stage, and the silos were opened at the pre-determined durations for quality analyses. Samsorg14 silage recorded higher pH (5.88) and significant titratable acidity (8.32 g kg(-1)), while the least pH was observed for Samsorg17 silage (4.63). The forages ensiled for 8 weeks had a higher pH (5.04) compared with 4.51, 5.03, and 4.57 recorded at 4, 12, and 16 weeks, respectively. In contrast, forages ensiled for 4 weeks recorded the highest titratable acidity (8.39) and Flieg point (104.07). CP content was higher in fresh Samsorg17 (110.64 g kg(-1)) and lower (71.01 g kg(-1)) in Samsorg41 ensiled for 8 weeks as influenced by variety x ensiling duration. Cumulative gas volume and methane were higher for Samsorg41 silage (21.21 and 6.76 ml 200 mg(-1) DM respectively). Ensiling for 16 weeks resulted in higher silages' IVDMD (44.00%) compared with other ensiling durations. Samsorg14 and Samsorg17 had a relatively stable silage pH, higher CP, and digestibility. Therefore, their silages could be conserved up to 16 weeks to provide high-quality feed for ruminants during the dry season to maintain animal productivity and ultimately enhance food security.

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