Acknowledgement
This work was supported by the National Key Research and Development Program of China (2023YFD2000701), the Natural Science Foundation of Heilongjiang Province (YQ2023C011), the Key Research and Development Program of Heilongjiang Province (GZ20230028), the Joint key project of Natural Science Foundation of Heilongjiang Province (ZL2024C018) and Harbin PROSYN Unite Microbial Feed Co., Ltd. (NEAU-HBBS-202201).
References
- Huuskonen A. Effects of skim milk and whey-based milk replacers on feed intake and growth of dairy calves. J Appl Anim Res 2017;45:480-4. https://doi.org/10.1080/09712119.2016.1217868
- Hulbert LE, Moisá SJ. Stress, immunity, and the management of calves. J Dairy Sci 2016;99:3199-216. https://doi.org/10.3168/jds.2015-10198
- Li Y, Lv M, Wang J, et al. Dandelion (Taraxacum mongolicum hand.-mazz.) supplementation-enhanced rumen fermentation through the interaction between ruminal microbiome and metabolome. Microorganisms 2021;9:83. https://doi.org/10.3390/microorganisms9010083
- Bag A, Bhattacharyya SK, Bharati P, Pal NK, Chattopadhyay RR. Evaluation of antibacterial properties of Chebulic myrobalan (fruit of Terminalia chebula Retz.) extracts against methicillin resistant Staphylococcus aureus and trimethoprim-sulphamethoxazole resistant uropathogenic Escherichia coli. Afr J Plant Sci 2009;3:25-9.
- Wang B, Lv D, Huang P, Yan F, Liu C, Liu H. Optimization, evaluation and identification of flavonoids in Cirsium setosum (Willd.) MB by using response surface methodology. J Food Meas Charact 2019;13:1175-84. https://doi.org/10.1007/s11694-019-00033-7
- Hu F, Bi Y, Zheng X, Lu M, Diao Q, Tu Y. Effect of baicalin supplementation on the growth, health, antioxidant and antiinflammatory capacity, and immune function of preweaned calves. Anim Feed Sci Technol 2023;298:115598. https://doi.org/10.1016/j.anifeedsci.2023.115598
- Casper DP, Hultquist KM, Acharya IP. Lactobacillus plantarum GB LP-1 as a direct-fed microbial for neonatal calves. J Dairy Sci 2021;104:5557-68. https://doi.org/10.3168/jds.2020-19438
- Banka AL, Guralp SA, Gulari E. Secretory expression and characterization of two hemicellulases, xylanase, and β-xylosidase, isolated from Bacillus subtilis M015. Appl Biochem Biotechnol 2014;174:2702-10. https://doi.org/10.1007/s12010-014-1219-1
- Alugongo GM, Xiao JX, Chung YH, et al. Effects of Saccharomyces cerevisiae fermentation products on dairy calves: performance and health. J Dairy Sci 2017;100:1189-99. https://doi.org/10.3168/jds.2016-11399
- Fan JP, He CH. Simultaneous quantification of three major bioactive triterpene acids in the leaves of Diospyros kaki by high-performance liquid chromatography method. J Pharm Biomed Anal 2006;41:950-6. https://doi.org/10.1016/j.jpba.2006.01.044
- Chen S, Li X, Liu X, et al. Investigation of chemical composition, antioxidant activity, and the effects of alfalfa flavonoids on growth performance. Oxid Med Cell Longev 2020;2020:8569237. https://doi.org/10.1155/2020/8569237
- Association of Official Analytical Chemists (AOAC) International. Official methods of analysis of AOAC International. 18th ed. AOAC International; 2005.
- Love WJ, Lehenbauer TW, Van Eenennaam AL, et al. Sensitivity and specificity of on-farm scoring systems and nasal culture to detect bovine respiratory disease complex in preweaned dairy calves. J Vet Diagn Invest 2016;28:119-28. https://doi.org/10.1177/1040638715626204
- Cheng JB, Bu DP, Wang JQ, et al. Effects of rumen-protected γ-aminobutyric acid on performance and nutrient digestibility in heat-stressed dairy cows. J Dairy Sci 2014;97:5599-607. https://doi.org/10.3168/jds.2013-6797
- Tan L, Li X, Fan C, et al. Supplementation of lentinan improves lactation performance by altering ruminal microorganisms and metabolites in dairy cows. Anim Nutr 2025;21:107-18. https://doi.org/10.1016/j.aninu.2024.12.005
- Ma L, Zhu Y, La ALTZ, Lourenco JM, Callaway TR, Bu D. Schizochytrium sp. and lactoferrin supplementation alleviates Escherichia coli K99-induced diarrhea in preweaning dairy calves. J Dairy Sci 2024;107:1603-19. https://doi.org/10.3168/jds.2023-23466
- Xu S, Feng X, Zhao W, Bi Y, Diao Q, Tu Y. Rumen and hindgut microbiome regulate average daily gain of preweaning Holstein heifer calves in different ways. Microbiome 2024;12:131. https://doi.org/10.1186/s40168-024-01844-7
- Ma T, Villot C, Renaud D, et al. Linking perturbations to temporal changes in diversity, stability, and compositions of neonatal calf gut microbiota: prediction of diarrhea. ISME J 2020;14:2223-35. https://doi.org/10.1038/s41396-020-0678-3
- Kimelman H, Shemesh M. Probiotic bifunctionality of Bacillus subtilis: rescuing lactic acid bacteria from desiccation and antagonizing pathogenic Staphylococcus aureus. Microorganisms 2019;7:407. https://doi.org/10.3390/microorganisms7100407
- Li HH, Jiang XR, Qiao JY. Effect of dietary Bacillus subtilis on growth performance and serum biochemical and immune indexes in weaned piglets. J Appl Anim Res 2021;49:83-8. https://doi.org/10.1080/09712119.2021.1877717
- Yang S, Zhang J, Jiang Y, et al. Effects of Artemisia argyi flavonoids on growth performance and immune function in broilers challenged with lipopolysaccharide. Anim Biosci 2021;34:1169-80. https://doi.org/10.5713/ab.20.0656
- Murovec U, Accetto T. Transcriptomic analysis of polysaccharide utilization loci reveals substrate preferences in ruminal generalists Segatella bryantii TF1-3 and Xylanibacter ruminicola KHP1. BMC Genomics 2024;25:495. https://doi.org/10.1186/s12864-024-10421-z
- Xue C, Li G, Zheng Q, et al. Tryptophan metabolism in health and disease. Cell Metab 2023;35:1304-26. https://doi.org/10.1016/j.cmet.2023.06.004
- Hu J, Zhang S, Li M, Zhao G. Impact of dietary supplementation with β-alanine on the rumen microbial crude protein supply, nutrient digestibility and nitrogen retention in beef steers elucidated through sequencing the rumen bacterial community. Anim Nutr 2024;17:418-27. https://doi.org/10.1016/j.aninu.2024.02.006
- Castro JJ, Gomez A, White BA, Mangian HJ, Loften JR, Drackley JK. Changes in the intestinal bacterial community, short-chain fatty acid profile, and intestinal development of preweaned Holstein calves. 1. Effects of prebiotic supplementation depend on site and age. J Dairy Sci 2016;99:9682-702. https://doi.org/10.3168/jds.2016-11006
- Detman A, Mielecki D, Chojnacka A, Salamon A, Błaszczyk MK, Sikora A. Cell factories converting lactate and acetate to butyrate: clostridium butyricum and microbial communities from dark fermentation bioreactors. Microb Cell Fact 2019;18:36. https://doi.org/10.1186/s12934-019-1085-1
- Louis P, Flint HJ. Diversity, metabolism and microbial ecology of butyrate-producing bacteria from the human large intestine. FEMS Microbiol Lett 2009;294:1-8. https://doi.org/10.1111/j.1574-6968.2009.01514.x
- Qiao S, Lian X, Yue M, et al. Regulation of gut microbiota substantially contributes to the induction of intestinal Treg cells and consequent anti-arthritis effect of madecassoside. Int Immunopharmacol 2020;89:107047. https://doi.org/10.1016/j.intimp.2020.107047
- Liu Y, Zhou M, Yang M, et al. Pulsatilla chinensis saponins ameliorate inflammation and DSS-induced ulcerative colitis in rats by regulating the composition and diversity of intestinal flora. Front Cell Infect Microbiol 2021;11:728929. https://doi.org/10.3389/fcimb.2021.728929
- He Z, Ma Y, Chen X, et al. Temporal changes in fecal unabsorbed carbohydrates relative to perturbations in gut microbiome of neonatal calves: emerging of diarrhea induced by extended-spectrum β-lactamase-producing enteroaggregative Escherichia coli. Front Microbiol 2022;13:883090. https://doi.org/10.3389/fmicb.2022.883090