Fermentation quality of herbal tea residue and its application in fattening cattle under heat stress.
Fermentation quality of herbal tea residue and its application in fattening cattle under heat stress.
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花草茶渣的发酵品质及其在热应激牛育肥中的应用
DOI：
10.1186/s12917-021-03061-y
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发表时间：
2021-11-12
影响因子：
2.6
通讯作者：
Sun J
中科院分区：
文献类型：
--
作者：
Zhuang X;Chen Z;Sun X;Li F;Luo J;Chen T;Xi Q;Zhang Y;Sun J
凉茶渣（HTR）通常被认为是凉茶饮料生产中的废物，但它仍然保留了丰富的营养成分和活性物质。本研究的主要目的是研究发酵技术对提高htr品质的影响，并重点研究发酵htr对育肥牛夏季热应激的缓解作用。本试验将发酵后的废HTR饲喂45头育肥牛，分为3组（发酵HTR替代饲粮中0、15、30%的饲料成分），饲喂试验期40 d。对育肥牛的生理指标、生长性能和粪便微生物群进行了评价。结果表明，发酵HTR能有效降低热应激条件下育肥牛的呼吸速率和直肠温度，提高日采食量和日增重，提高抗氧化剂含量和血液免疫指标。此外，我们研究了对照组和30% HTR替代组6头育肥牛的粪便微生物群组成，发现发酵HTR显著改变了育肥牛粪便微生物群组成，增加了微生物多样性，相关分析表明，细菌与热应激条件下育肥牛粪便SCFA水平密切相关。本试验以发酵HTR替代饲粮中30%的饲料成分，可改变育肥牛肠道微生物，维持健康，缓解热应激。在线版本包含补充材料，可在10.1186/s12917-021-03061-y获得。
Herbal tea residue (HTR) is generally considered to be the waste of herbal tea beverage production while it still retains rich nutrients and active substances. The main aim of the present study was to investigate the effect of fermentation technology on improving the quality of HTRs, and focus on the fermented HTR-induced alleviation of summer heat stress in fattening cattle. In this study, the waste HTR was fermented and then fed to a total of 45 fattening cattle that were divided into 3 groups (fermented HTR replaced 0, 15, 30% of the forage component of the diet), and the feeding experiment was lasted for 40 days. The physiological indexes, growth performance and fecal microbiota of fattening cattle were evaluated and results showed that fermented HTR could effectively reduce the respiratory rate and rectal temperature of fattening cattle under heat stress, increase the daily feed intake and daily gain, and improve the antioxidant content and blood immune index. In addition, we studied the fecal microbiota composition of 6 fattening cattle in control and 30% HTR substitution groups and found fermented HTR significantly changed the composition of fecal microbiota and increased microbial diversity, and correlation analysis suggested that the bacteria were closely related to fecal SCFA levels of fattening cattle under heat stress. In this study, fermented HTR replaced 30% of the forage component of the diet that can change the intestine microorganisms, maintain health and alleviate the heat stress of fattening cattle. The online version contains supplementary material available at 10.1186/s12917-021-03061-y.
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影响因子：
1.6
作者：
Chaudhary, Sandhya S.;Singh, Virendra Kumar;Patel, Pankaj A.
通讯作者：
Patel, Pankaj A.
影响因子：
4.4
作者：
Chen, K. -L.;Kho, W. -L.;Hsieh, C. -W.
通讯作者：
Hsieh, C. -W.
影响因子：
3.5
作者：
Hristov, A. N.;Harper, M. T.;DiMarco, K.
通讯作者：
DiMarco, K.
影响因子：
4.8
作者：
Desideri, D.;Meli, M. A.;Feduzi, L.
通讯作者：
Feduzi, L.
影响因子：
4.1
作者：
Kondo, M;Kita, K;Yokota, H
通讯作者：
Yokota, H