饲粮钙磷水平对断奶后羔羊屠宰性能和肉品质的影响

试验旨在研究饲料中钙磷水平对断奶后羔羊屠宰性能和肉品质的影响。选用120只70日龄、体重(16.27±3.33)kg的断奶后察哈尔羊(德国肉用美利奴羊×内蒙古细毛羊),公母各半,随机分成4个处理,每处理30个重复,在保持能氮水平相近的情况下(消化能18MJ/kg、蛋白17.5%)饲喂4种钙、磷水平的日粮:0.49%、0.28%(I组),0.55%、0.32%(II组),0.64%、0.47%(III组),0.87%、0.70%(IV组)。预试期5d,正试期60d。(结果)结果显示:1)饲粮钙磷水平对断奶羔羊宰前活重、胴体重和屠宰率的影响差异不显著(P>0.05);2)饲粮钙磷水平对断奶羔羊肌肉滴水损失、pH、剪切力、肉色L*、a*、b*值的影响差异不显著(P>0.05)。结果表明,饲粮钙磷水平对断奶后羔羊屠宰性能和肉品质没有显著影响。

Koumiss Consumption Alleviates Symptoms of Patients with Chronic Atrophic Gastritis:A Possible Link to Modulation of Gut Microbiota

Intestinal dysbiosis is closely related to a variety of medical conditions,especially gastrointestinal diseases.The present study aimed to investigate the effects of koumiss on chronic atrophic gastritis(CAG)in an outpatient clinical trial(n=10;all female subjects aged 41-55;body mass index ranging from 19.5 to 25.8).Each patient consumed three servings of koumiss per day(i.e.250 ml daily before each of 3 meals)for a 60-day period.The improvement of patients'symptoms was monitored by comparing the total scores of symptoms before and after the treatment.Meanwhile,the changes in the patients’fecal microbiota composition and specific blood parameters were determined.After the 60-day koumiss administration,significant symptom improvements were observed,as evidenced by the reduction of the total symptoms score,and changes in blood platelet and cholesterol levels.The changes in patients’fecal microbiota composition were found.The patients’fecal microbiota fell into two distinct enterotypes,Bacteroides dorei/Bacteroides uniformis(BB-enterotype)and Prevotella copri(P-enterotype).Significant less Bacteroides uniformis was found in the BB-enterotype patient group,while significant more butyrate-producing bacteria(e.g.Eubacterium rectale and Faecalibacterium prausnitzii)were found in the P-enterotype patient group,following koumiss administration.After stopping koumiss consumption,the relative abundance of some biomarker taxa returned to the original level,suggesting that the gut microbiota modulatory effect was not permanent and that continuous koumiss administration was required to maintain the therapeutic effect.In conclusion,koumiss consumption could alleviate the symptoms of CAG patients.Our results may help understand the mechanism of koumiss in alleviating CAG disease symptoms,facilitating the development of such products with desired therapeutic functions.

蒙药莲座蓟历史沿革及现代研究概况

通过查阅蒙医药经典著作及莲座蓟的相关研究文献报道,整理蒙药材莲座蓟的相关资料,为其临床蒙医应用和进一步研究开发提供依据。查阅文献报道可知,莲座蓟的现代研究较少,影响其质量标准的提升以及产业化等,而且还存在蒙医临床上混乱应用的现象。莲座蓟在中医临床几乎不使用,因此加大民族医药的研究力度,保护民族医药的特色意义较大。

基于设备树的火电项目质量追溯管理实践

通过对电力行业发展现状及火力发电设备质量管理问题进行分析,梳理我国火电项目质量管理领域研究成果,建立基于设备树的火电项目质量追溯管理体系,分析火电项目质量追溯管理流程。通过汇总设备相关信息、基建期信息和生产期信息,实现设备与相关单位部门、责任人的信息关联,为项目全过程质量追溯和责任认定提供数据基础,可有效提升设备运行过程中的标准化管理和风险控制水平。