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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    Item type:Publication,
    Winged bean tuber as a novel alternative to corn meal in concentrate mixture in Thai native beef cattle diets
    (2025-12-01)
    Unnawong, Narirat
    ;
    Cherdthong, Anusorn
    ;
    Chankaew, Sompong
    ;
    Rakvong, Teppratan
    ;
    Suriyapha, Chaichana
    Background: In times of high feed costs and severe feed competition, it is crucial to explore alternative feedstuffs. Identifying alternative feed sources is essential for developing cost-effective and sustainable solutions to address challenges in livestock production and economic constraints. This study evaluates the effects of replacing corn with different levels of winged bean tuber (WBT) in concentrate mixtures on feed intake, feed utilization, and rumen fermentation in Thai native beef cattle. Animals were randomly assigned to a 4 × 4 Latin square design, with WBT replacing corn in the concentrate mixture at levels of 0, 33, 67, and 100%. Results: Replacing corn with WBT (0–100%) in the concentrate diet did not affect (p > 0.05) dry matter, organic matter, or crude protein intake. However, neutral detergent fiber (NDF) and acid detergent fiber (ADF) intake increased linearly (p < 0.05) at 67% and 100% replacement levels. Although nutrient digestibility remained unchanged, ruminal pH, ammonia-nitrogen concentration, and protozoal population increased linearly (p < 0.05) at 67% and 100% WBT replacement levels. However, WBT replacement did not significantly affect blood urea nitrogen (BUN) concentrations. As the level of WBT increased in the concentrate diet, the concentration of propionic acid (C3) increased, but the amount of acetic acid (C2) and the ratio of C2 to C3 decreased linearly (p < 0.05) without shifting the acetic concentration. Additionally, replacing corn with WBT in the concentrate diet had no effect on nitrogen balance. Conclusion: The WBT can be used as an alternative for corn grain up to 100% in ruminant diets without changing feed digestibility, the BUN, and nitrogen balance. It can also improve the fermentation characteristics in the rumen.
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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.