Polyorach, Sineenart

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Polyorach, Sineenart
Alternative Name
Polyorach, S.
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Email
sineenart.po@kmitl.ac.th

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    Improving the quality of sugarcane bagasse by urea and calcium hydroxide on gas production, degradability and rumen fermentation characteristics
    (2017-12-01)
    Gunun, N.
    ;
    Gunun, P.
    ;
    Wanapat, M.
    ;
    Cherdthong, A.
    ;
    Kang, S.
    The objective of this study was to determine the influence of urea and whole soybean meal or calcium hydroxide [Ca(OH)<inf>2</inf>] treatment on sugarcane bagasse nutritive values and in vitro fermentation. The experimental design was a completely randomized design (CRD) and the dietary treatments were sugarcane bagasse treated with urea (0, 20, 40g/kg) and whole soybean meal or Ca(OH)<inf>2</inf> (0, 25, 50g/kg). It was found that the protein content of sugarcane bagasse was significantly increased by whole soybean meal and urea treatment, and the values ranged from 65-71 g/kg DM. On the other hand, treatment of Ca(OH)<inf>2</inf> 50 g/kg with urea 40 g/kg could reduce (p<0.05) fiber content of sugarcane bagasse and the values were 533, 514 and 104 g/kg DM for NDF, ADF and ADL, respectively. Gas production from the insoluble fraction (b), potential extent of gas production (a+b) and cumulative gas production were significantly increased (p<0.05) in sugarcane bagasse treated with urea 40 g/kg and urea 40 g/kg + whole soybean meal 25 g/kg (55.3, 53.5 and 50.1 ml), respectively. Urea and Ca(OH)<inf>2</inf> treatment could increase DM and OM degradability, true digestibility and microbial mass of sugarcane bagasse(p<0.05). Furthermore, the concentration of C3, C2 and C2:C3 were improved by urea and whole soybean meal or Ca(OH)<inf>2</inf> treatment. In addition, methane production was decreased in sugarcane bagasse treated with urea 40 g/kg in the present study. Based on this experiment, it could be concluded that treatment of urea and Ca(OH)<inf>2</inf> was an alternative method to improve the nutritive value of sugarcane bagasse, gas production, digestibility and ruminal fermentation characteristics.
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    Effects of microbial fermented liquid (MFL) supplementation on gas production kinetics and digestibility using in vitro gas production technique
    (2018-12-01)
    Nampukdee, R.
    ;
    Polyorach, S.
    ;
    Wanapat, M.
    ;
    Kang, S.
    ;
    Cherdthong, A.
    The effects of microbial fermented liquid (MFL) supplementation on rumen fermentation and digestibility of dairy steer using in vitro gas production technique was studied. The two rumen fistulated dairy steers as a rumen fluid donor was used. The levels of source of microbes (yeast (Y) and microbial fermented liquid (MFL) were incorporated with the levels of supplementation (0, 10, 20 and 30 % of concentrate) was recorded. It was found that the intercept value (a) and IVDMD and IVOMD were interacted (p<0.01) between microbial source and supplement levels, while, supplement levels affected on a and the insoluble fraction (b), microbial source affected on b, potential extent of gas production (a+b) and cumulative gas production at 72 h and IVOMD. Moreover, supplementation of MFL with 20 % of concentrate were the highest (p<0.05) of b, c, a+b, cumulative gas production at 72 h, IVDMD and IVOMD. In conclusion, supplementation of MFL could improve nutritional digestibility and a possible productivity in ruminants.
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    Effect of Delonix regia seed meal supplementation in Thai native beef cattle on feed intake, rumen fermentation characteristics and methane production
    (2017-10-01)
    Supapong, C.
    ;
    Cherdthong, A.
    ;
    Seankamsorn, A.
    ;
    Khonkhaeng, B.
    ;
    Wanapat, M.
    The aim of this research was to investigate the effect of supplementing Delonix regia (DR) seed meal on feed intake, digestibility, rumen fermentation, nitrogen balance and CH<inf>4</inf> production in Thai native beef cattle fed on rice straw. Four Thai native beef cattle with the initial body weight (BW) of 100 ± 5.0 kg were randomly assigned according to a 4 × 4 Latin square design to receive DR seed meal supplementation at 0, 90, 180 and 270 g/d. The present results revealed that the total intake (g/kg BW<sup>0.75</sup>) was significantly increased with the inclusion of dry matter (DM) seed meal at 270 g (P < 0.05). DM and OM digestibility were decreased when increasing DR seed meal levels (P < 0.05). Ruminal NH<inf>3</inf>-N concentration increased in beef cattle receiving DR seed meal. Supplementation of DR seed meal did not alter fungal zoospores’ concentration (P > 0.05), whereas the protozoal population was at 0, 4 h post feeding, and the mean values reduced when increasing the levels of DR seed meal supplemented (P < 0.05). The concentration of propionic acid at 4 h post feeding and its average concentration were significantly highest when 270 g DR seed meal was supplemented (P < 0.05). Estimation of CH<inf>4</inf> concentrations and CH<inf>4</inf> per dry matter intake were found reduced when increasing its DR seed meal concentration. In addition, N absorption, N retention and proportion of N retention to N intake were enhanced when 270 g DR seed meal was supplemented (P < 0.05). Thus, the inclusion of DR seed meal at 270 g/d resulted in improving total feed intake, rumen fermentation and N balance whereas there was reduced DM digestibility, protozoal population and CH<inf>4</inf> production in beef cattle fed rice straw base.