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Effect of Several Hetero- and Homofermentative Lactic Acid Bacteria Inoculants on the Chemical and Proximate Composition in Corn Silage

Nasyatul, M.H.¹*, Faisal, A.B.², Julie-Marzlinda, M.R.², Sasyafezleen, M.Z.², Faiz,A.H.², Syafri-Famin, A.A.², Marini, A.M.³ and Noraini, S.¹

¹Malaysian Agricultural Research and Development Institute, Serdang, Selangor
²Malaysian Agricultural Research and Development Institute, Kluang, Johore
³Malaysian Agricultural Research and Development Institute, Kemaman, Terengganu

Malaysian J. Anim. Sci. 2022 25(2): 1-11

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This study aimed to determine the effect of homofermentative and heterofermentative lactic acid bacteria on the chemical and nutritional components of corn silage. The variety of corn used in this study was GWG 4546 at the harvesting age of 110 days. It was ensiled with 105cfu of LAB for each gram of fresh material. The strains of LAB used to ensile were P. acidilactici (homofermentative LAB), L.plantarum (hetero-homofermentative LAB) and L. fermentum(heterofermentative LAB). The fresh stover was packed in 5L of HDPE plastic jar and kept at room temperature for 28 days. The silages were harvested every week for chemical and proximateanalysis. The experimental design was completely randomized design, with 5 treatments x 4 fermentative periods x 3 replicates. From the study, inoculation of homofermentative P. acidilacticiproduces more lactic acid at an early stage of ensiling, whereas heterofermentative L. plantarumproduce more lactic acid at later stages. Furthermore, the crude protein content and metabolizable energy of corn stover silage inoculated with homofermetative LAB were found to be constant throughout the 28 days of fermentation and the values were significantly higher than silages inother treatments. However, there were no significant differences in fibre content, ash content, pHvalues, dry matter, and fat content among all groups. Therefore, it can be concluded that the addition of homofermentative P. acidilactici resulted in better preservation with improved energy and protein values in 110-days of grain corn stover after 28 days of ensilation.