Effects of Phragmites australis Shoot Remainder Silage on Growth Performance, Blood Biochemical Parameters, and Rumen Microbiota of Beef Cattle

被引：5

作者：

Wang, Qiye ^{[1
,2
]}

Zeng, Xianglin ^{[1
]}

Zeng, Yutong ^{[1
]}

Liu, Xiaoruowei ^{[1
]}

Wang, Yancan ^{[1
]}

Wang, Xin ^{[1
]}

Li, Jianzhong ^{[1
]}

Wang, Yiqiang ^{[3
]}

Feng, Zhi ^{[3
]}

Huang, Pengfei ^{[1
]}

Yin, Jia ^{[1
]}

Huang, Jing ^{[1
]}

Zhu, Mingzhi ^{[4
]}

Yang, Huansheng ^{[1
,2
]}

机构：

[1] Hunan Normal Univ, Hunan Int Joint Lab Anim Intestinal Ecol & Hlth, Hunan Prov Key Lab Anim Intestinal Funct & Regula, Coll Life Sci,Lab Anim Nutr & Human Hlth, Changsha, Peoples R China

[2] Chinese Acad Sci,Inst Subtrop Agr, Hunan Prov Key Lab Anim Nutrit Physiol & Metab Pr, Hunan Prov Engn Res Ctr Hlthy Livestock,Sci Obser, Key Lab Agro Ecol Processes Subtrop Reg,Minist Ag, Changsha, Peoples R China

[3] Cent South Univ Forestry & Technol, Hunan Prov Key Lab Forestry Biotechnol, Key Lab Nonwood Forest Nurturing & Protect Natl, Minist Educ, Changsha, Peoples R China

[4] Hunan Agr Univ, Coll Hort, Natl Res Ctr Engn Technol Utilizat Funct Ingredie, Key Lab Tea Sci,Minist Educ, Changsha, Peoples R China

来源：

FRONTIERS IN VETERINARY SCIENCE | 2022年 / 9卷

关键词：

Phragmites australis feed; growth performance; rumen microbiota; rumen bacterial function; beef cattle; BACTERIAL COMMUNITY DIVERSITY; DIETARY ENERGY; MEAT QUALITY; DAIRY-COWS; FERMENTATION; CAPACITY; ROUGHAGE; PASTURE; IMPACT;

D O I：

10.3389/fvets.2022.778654

中图分类号：

S85 [动物医学（兽医学）];

学科分类号：

0906 ;

摘要：

The objective of the present study was to assess the effects of replacing corn silage with Phragmites australis shoot remainder (PSR) silage on intake, growth performance, serum biochemical parameters, and rumen microbial diversity of growing-finishing beef. Fifteen Angus beef cattle with an average body weight of 253 +/- 2.94 kg were randomly divided into three groups (five replicas vs. each group vs. Angus beef cattle). The three treatments were group A fed 60% PSR silage + 40% concentrate, group B fed 30% PSR silage + 30% corn silage + 40% concentrate, and group C fed 60% corn silage + 40% concentrate. The adaptation period was 15 days, and the trial period lasted for 45 days. Results showed that the ADG was significantly higher, and FCR was significantly lower both in groups A and B compared with group C. The results of serum biochemical parameters showed that the concentration of GLU was significantly lower in group B than both groups A and C. Microbial diversity results showed that the OTUs, Shannon, Chao1, and ACE indices were significantly lower in group A compared with groups B and C. At the phyla level, the relative abundances of Tenericutes and Melainabacteria had significant differences among the three groups, and the relative abundances of Papillibacter, Anaeroplasma, and Anaerovorax had significant differences among the three groups at the genus level. Additionally, Rikenellaceae was the unique biomarker among the three groups. Furthermore, the results of function prediction showed that the gene families associated with metabolism of cofactors and vitamins, cellular processes and signaling, metabolism, biosynthesis of other secondary metabolites, infectious diseases, signaling molecules and interaction, nervous system, and digestive system were significantly decreased, while lipid metabolism was dramatically increased from groups A to C at KEGG level 2. At KEGG level 3, 11 metabolic pathways were significantly influenced among the three groups. In summary, these findings indicated that PSR silage substituted the corn silage totally or partially improved the growth performance, and altered the rumen microbial composition and diversity and the corresponding change in prediction function of rumen bacteria in Angus beef cattle.

引用

页数：11

共 44 条

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