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首页> 外文期刊>Tropical Animal Health and Production >Aspergillus terreus treated rice straw suppresses methane production and enhances feed digestibility in goats
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Aspergillus terreus treated rice straw suppresses methane production and enhances feed digestibility in goats

机译：曲霉治疗稻草抑制甲烷的生产，增强山羊的饲料消化

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The objectives of this study were to test the efficacy of producing lovastatin in rice straw treated with Aspergillus terreus in larger laboratory scale following the procedure previously reported and to investigate the effectiveness of the treated rice straw containing lovastatin on methane mitigation in goats. The concentration of lovastatin in the treated rice straw was 0.69 +/- 0.05 g/kg dry matter (DM) rice straw. Our results showed that supplementation of lovastatin at 4.14 mg/kg BW reduced methane production by 32% while improving the DM digestibility by 13% (P & 0.05) in goats fed fermented rice straw compared to those fed untreated rice straw. Populations of total methanogens and Methanobacteriales species were significantly reduced (P & 0.05) while the population of total bacteria and Ruminococcus albus were increased in the treatment group (P & 0.05). Our results demonstrated that lovastatin in the treated rice straw acted specifically on the methanogens by inhibiting the activity of HMG-CoA reductase in the methanogens' cell membrane biosynthesis pathway and thus the growth of rumen methanogens as previously reported. This study provides a simple yet practical approach to mitigate enteric methane production particularly in the developing countries which depend heavily on the use of agro-biomass such as rice straw to feed their ruminant animals.
机译：本研究的目的是测试在先前报告的程序后较大实验室规模在较大的实验室规模中产生稻草秸秆在稻草中产生洛伐他汀的疗效，并探讨含有洛伐他汀对山羊甲烷缓解的稻草秸秆的有效性。稻草稻草中洛伐他汀的浓度为0.69 +/- 0.05g / kg干物质（DM）稻草。我们的研究结果表明，甲烷产量降低了32％，同时通过喂养未处理的稻草相比，在牛肝菌中提高13％（P＆amp; 0.05）的DM消化率降低了32％。总甲烷酮和甲基杆菌物种的种群显着降低（P＆amp; 0.05），而治疗组（P＆amp; 0.05）中的总细菌和喇菇的群体增加。我们的研究结果表明，通过抑制甲烷基因的细胞膜生物合成途径中HMG-CoA还原酶的活性，因此如前所述，通过抑制HMG-COA还原酶的活性，在甲烷中专门作用于甲烷酮的洛伐他汀。本研究提供了一种简单而实用的方法，可以减轻肠溶甲烷的生产，特别是在发展中国家，这些国家依赖于使用稻草等农业生物量喂养反刍动物的发展中国家。

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