摘要
【Abstract】 The rumen microbiota is important for energy and nutrient acquisition in cattle, and therefore its composition may also affect carcass merit and meat quality attributes. In this study, we examined the associations between archaeal and bacterial taxa in the rumen microbiota of beef cattle and 12 different attributes, including hot carcass weight (HCW), dressing percentage, ribeye area (REA), intramuscular fat content, marbling score, fat thickness, yield grade, moisture content, purge loss, and shear force. There were significant correlations between the relative abundance of certain archaeal and bacterial genera and these attributes. Notably, Selenomonas spp. were positively correlated with live weight and HCW, while also being negatively correlated with purge loss. Members of the Christensenellaceae R-7, Moryella, and Prevotella genera exhibited positive and significant correlations with various attributes, such as dressing percentage and intramuscular fat content. Ruminococcaceae UCG-001 was negatively correlated with live weight, HCW, and dressing percentage, while Acidaminococcus and Succinivibrionaceae UCG-001 were negatively correlated with intramuscular fat content, moisture content, and marbling score. Overall, our findings suggest that specific changes in the rumen microbiota could be a valuable tool to improve beef carcass merit and meat quality attributes. Additional research is required to better understand the relationship between the rumen microbiota and these attributes, with the potential to develop microbiome-targeted strategies for enhancing beef production. 【Key points】 • Certain rumen bacteria were associated with carcass merit and meat quality • Moryella was positively correlated with intramuscular fat in beef carcasses • Acidaminococcus spp. was negatively correlated with marbling and intramuscular fat
摘要译文
【摘要】瘤胃微生物群对于牛的能量和养分获取至关重要，因此其组成也可能影响尸体优点和肉质质量属性。在这项研究中，我们检查了肉牛瘤胃菌群中古细菌和细菌分类群之间的关联，以及12种不同的属性，包括热car体重量（HCW），敷料百分比，肋骨面积，REA），肌肉内脂肪的评分，脂肪得分，脂肪，脂肪，脂肪，脂肪。厚度，产量等级，水分含量，清除损失和剪切力。某些古细菌和细菌属的相对丰度与这些属性之间存在显着相关性。值得注意的是，Selenomonas spp。与活体重和HCW呈正相关，同时也与清除损失负相关。Christensenellaceae R-7，Moryella和Prevotella属的成员与各种属性（例如敷料百分比和肌内脂肪含量）表现出正相关。Ruminococcaceae UCG-001与活体重，HCW和敷料百分比负相关，而酸性氨基甲环菌和琥珀酸UCG-001与肌肉内脂肪含量，湿度，湿度，湿度和大理石花粉分数负相关。总体而言，我们的发现表明，瘤胃微生物群的具体变化可能是改善牛肉car体功绩和肉质质量属性的宝贵工具。需要进行其他研究以更好地了解瘤胃微生物群与这些属性之间的关系，并有可能制定以微生物组为靶向的策略来增强牛肉生产。【关键点】•某些瘤胃细菌与car体的优点和肉质•肉食棒上的肉食相关•牛肉尸体中的肌内脂肪呈正相关。与大理石花纹和肌内脂肪负相关
Devin B. Holman (0000-0001-5306-3732) [1];Katherine E. Gzyl [2];Haley Scott [3];Nuria Prieto [4];Óscar López-Campos [5];Cara Service[6];. Associations between the rumen microbiota and carcass merit and meat quality in beef cattle[J]. Applied Microbiology and Biotechnology, 2024,108(1): 287