含有希尔加德扁豆乳杆菌（CNCM-I-4785）的接种剂对不同培养温度下长期储存的玉米青贮饲料的微生物群、发酵和有氧稳定性的影响

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-06-13 DOI:10.1139/cjas-2023-0117

Pascal Drouin, Érica Benjamim da Silva, Richard Anthony Scuderi, Julien Tremblay, Mathieu Castex, E. Apper

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引用次数: 0

摘要

未经处理（对照组）或用接种剂（布氏扁豆乳杆菌、希尔加德氏扁豆乳杆菌和五胜肽球菌，INO）处理的整株玉米在恒温（MS-C）或变温（MS-V）的微型筒仓中贮藏 210 天，或在料仓中贮藏 220 天。在筒仓表面下 50 厘米（D50）和 150 厘米（D150）处采集筒仓样品。来自 MS-V 和 MS-C 的样品具有相似的 pH 值和乳酸、丙酸、1,2-丙二醇和乙醇浓度，但乙酸含量不同（P = 0.009）。此外，MS-V 的细菌（P = 0.002）和真菌（P = 0.011）丰富度高于 MS-C。在迷你硅藻和沙坑中，接种会降低（P < 0.001）乳酸水平，同时增加（P < 0.05）乙酸、1,2-丙二醇和真菌的丰富度。在沙坑中，从 D50 采集的样本的有氧稳定性（P < 0.05）低于 D150，但与对照组相比，无论采样深度如何，接种都会提高有氧稳定性（P < 0.05）。迷你硅藻的储存温度对发酵概况或真菌群落没有明显影响。总之，无论贮藏温度如何，接种都能提高迷你型青贮饲料的乙酸产量和真菌多样性；无论取样深度如何，接种都能提高双层青贮饲料的乙酸产量和真菌多样性，从而提高 D50 和 D150 双层青贮饲料长期贮藏后的需氧稳定性。

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Effects of an inoculant containing Lentilactobacillus hilgardii (CNCM-I-4785) on the microbiome, fermentation, and aerobic stability of corn silage stored for long-term at different incubation temperatures

Whole-plant corn untreated (Control) or treated with an inoculant (Lentilactobacillus buchneri, Lentilactobacillus hilgardii, and Pediococcus pentosaceus, INO) was ensiled for 210 d in mini-silos at constant (MS-C) or variable temperature (MS-V) or for 220 d in bunkers. Bunker samples were collected at 50 (D50) and 150 (D150) cm below silo surface. Samples from MS-V and MS-C had similar pH and concentrations of lactic acid, propionic acid, 1,2-propanediol, and ethanol, but different acetic acid content (P = 0.009). Additionally, MS-V exhibited greater bacterial (P = 0.002) and fungal (P = 0.011) richness than MS-C. Inoculation decreased (P < 0.001) lactic acid levels while increasing (P < 0.05) acetic acid, 1,2-propanediol, and fungal richness in both mini-silos and bunker. In bunkers, samples collected from D50 had a lower aerobic stability (P < 0.05) than D150, but inoculation increased (P < 0.05) aerobic stability compared to Control, regardless of sampling depth. The storage temperature of mini-silos did not markedly impact the fermentation profile or fungal community. Overall, inoculation increased acetic acid production and fungal diversity in mini-silos, regardless of the storage temperature, and in bunkers, irrespective of sampling the depth, improving the aerobic stability of D50 and D150 bunker silages after long-term ensiling.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.