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Author: search.filters.author.Srikijkasemwat, K.Subject: search.filters.subject.Silage

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    Chemical composition and diversity of lactic acid bacteria in Guinea grass based silages
    (2019-05-01)
    Kongsan, S.
    ;
    Srikijkasemwat, K.
    ;
    Jirajaroenrat, K.
    ;
    Suphalucksana, W.
    Ensilage is considered that widespread among conserving method of fodder crops. The successes of this process depend on bacteria in lactic acid bacteria (LAB) group as existing in forage crops. The chemical composition and diversity of lactic acid bacteria in silages based on guinea grass was investigated. Result showed that the silages contained 62.55 to 76.47% moisture, 23.53 to 37.45% dry matter (DM) and 6.11 to 15.74% ash. Groundnut silage (T3) showed the lowest crude fiber (CF), neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents. Two hundred and eighty-two isolates of LAB were isolated from five silage formula based on guinea grass supplementation with either lead tree leaves or groundnut. Most of isolates were gram-positive and catalase-negative bacteria. Based on morphological characteristics and PCR-RAPD analysis, the isolates were divided into 21 groups (Guinea Grass Mixed Legume Silage (GMLS) 1 to GMLS21). The phylogenetic relation of the representative strains was analyzed from the data of 16S ribosomal DNA sequencing. Prevalent of LAB found in the silages included Lactobacillus plantarum, Pediococcus acidilactici, Pediococcus pentosaceus, Enterococcus hirae, and Weissella paramesenteroides. L. plantarum was a dominant population and found distribution in all silage formula. This study revealed that the silage samples, including guinea grass, lead tree and groundnut contain mainly of L. plantarum. The information obtained can be used for the anterior design of reasonable inoculants for improvement of silage quality for cattle feed.
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    The effect of adding mung bean meal supplementation on Napier Pakchong 1 silage on fermentation quality and nutrient composition
    (2018-12-01)
    Boonkoed, S.
    ;
    Suphalucksana, W.
    ;
    Sitthigripong, R.
    ;
    Srikijkasemwat, K.
    ;
    Mitchaothai, J.
    The effect of mung bean meal supplementation on Napier Pakchong 1 silage on fermentation quality and nutritional value was investigated. The results found that pH of all treatments of mung bean meals on Napier Pakchong 1 silage ranges from 4.17-4.73 was the lowest value found in the treatment 1 whereas highest value found in the treatment 6 (P<0.01). When volatile basic nitrogen (VBN) in silage was recorded, the VBN in the ailage of the treatment 5 had the highest value (35.56%) and followed by that of the treatment 6 (32.98%) while the lowest VBN found in the silage of the treatment 1 (8.57%) (P<0.01). Moreover, the silage in the treatment 6 was the highest nutritional proportion by increasing dry matter (DM), crude protein (CP), ether extract (EE) and gross energy (GE), while decreasing ash, neutral detergent fiber (NDF) and acid detergent fiber (ADF) (P<0.01). Thus, making silage by adding mung bean meals on Napier Pakchong 1 could improve nutritional value of silage in term of increasing DM, CP, EE and GE contents, but decreasing contents of ash, NDF and ADF. In addition, making silage from Napier Pakchong 1 grass by replacing mung bean meal at 10-20% could be applicable for preserving ruminant roughage.