Whole-Plant Corn Silage Improves Rumen Fermentation and Growth Performance of Beef Cattle by Altering Rumen Microbiota

Cui, Yalei; Liu, Hua; Gao, Z.; Xu, Junying; Liu, Boshuai; Guo, Mingming; Yang, Xu; Niu, Jiakuan; Zhu, Xiaoyan; Ma, Sen; Li, Defeng; Sun, Yu; Ya, Shi

doi:10.21203/rs.3.rs-944720/v1

Cited by 3 publications

(2 citation statements)

References 23 publications

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“…Rumen pH and VFA content are essential index for assessing ruminant fermentation (Cui et al 2022). In this study, FHTR substituting for WCS significantly decreased the ruminal pH, which may be related to changes in rumen VFA.…”

Section: Rumen Fermentationmentioning

confidence: 63%

Effects of fermented herbal tea residue on meat quality, rumen fermentation parameters and microbes of black goats

Wang,

Wu,

Guo

et al. 2023

AMB Expr

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Herbal tea residue (HTR) is generally considered to be a reusable resource which has still retains considerable proportion of nutrients and active substances. This study aimed to investigate the effects of substitution of whole corn silage with fermented herbal tea residue (FHTR) on meat quality, serum indices, rumen fermentation, and microbes in Chuanzhong black goats. Twenty-two female Chuanzhong black goats (4 months old) with similar weight (9.55 ± 0.95 kg) were selected and randomly divided into two groups. FHTR was used to replace 0% (CON group) and 30% (FHTR group) of whole corn silage in the diets and fed as a total mixed ration (TMR) for Chuanzhong black goats. The adaptation feeding period was 7 days, and the experimental period was 35 days. Results illustrated that the FHTR group had higher value of a* and concentrations of DM and CP and lower rate of water loss (P < 0.05) than the CON group. For the serum indices, goats fed with 30% FHTR had higher (P < 0.05) concentration of CR on day 35. For rumen fermentation, the pH and ratio of acetic acid/propionic acid (AA/PA) in the FHTR group were significantly lower than those in the CON group (P < 0.05). In addition, we studied the goats’s rumen microbial community composition and found that the dominant phyla were Firmicutes, Bacteroidetes,and Tenericutes; and the dominant genera were Quinella, Candidatus_Saccharimonas, and Saccharofermentans. There was a significant difference in the beta diversity of the rumen microbiota between groups (P < 0.05). To sum up, the addition of FHTR can affect the meat quality, serum indices, improved rumen fermentation by adjusted the diversity and function of the rumen microbiota.

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Section: Rumen Fermentationmentioning

confidence: 63%

Effects of fermented herbal tea residue on meat quality, rumen fermentation parameters and microbes of black goats

Wang,

Wu,

Guo

et al. 2023

AMB Expr

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“…The library quality was assessed on the Qubit@ 2.0 Fluorometer (Thermo Scienti c) and Agilent Bioanalyzer 2100 system. Consequently, 250bp paired-end reads were generated by sequencing on an Illumina Nova Seq platform [14]. And these were the raw data.…”

Section: Library Preparation and Sequencingmentioning

confidence: 99%

Analysis of rumen Bacterial diversity in Mongolian sheep based on 16S rDNA sequencing

Qiao

Shí

Jia

2023

Preprint

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Background Rumen microorganisms play an important role in the physiology, nutrition, pathology, and host immunity of ruminants. Of these microorganisms, bacteria were the most abundant in the rumen. The main purpose of this article is to explore the diversity, abundance and microflora function of rumen bacteria in Mongolian sheep in Inner Mongolia. 11 rumen samples from adult sheep from Inner Mongolia were collected randomly lived in the same environment and fed in the same way. Using Illumine Seq platform, 16S rDNA V4 regions were sequenced to analyze the rumen microbial structure and function prediction of the rumen fluid from the 11 Mongolia sheep. Results 6200 effective sequences and 57759 OTUs for species categorization were acquired by 16S rDNA amplicon sequencing. The analysis of bacterial diversity showed that the dominant bacteria groups were Bacteroidota and Firmicutes at the phylum level and Prevotellaceae at the family level. It was shown that most genes encoded by sheep rumen bacteria were related to metabolism, followed by gene information processing and environmental information processing. Additionally, results showed that fibrinolytic enzymes and cellulose-degrading bacteria were abundant in Mongolian sheep rumen. Conclusions The results revealed the population distribution, population characteristics, and quantity of rumen bacteria in sheep, which laid a foundation for the study of rumen bacterial diversity. Additionally, it served as a resource for cultivating strains that produce cellulase and a manual for identifying cellulose degradation genes with potential for commercial use.

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Effect of waste mango silage on the in vitro gas production, in situ digestibility, intake, apparent digestibility, and ruminal characteristics in calf diets

et al. 2023

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Background and Aim: Mexico is the fifth largest producer of mangoes in the world. For the conservation of agro-industrial waste and crop residues, the ensiling technique has shown good results. This study aimed to evaluate the effect of increasing the level of mango silage (86% waste mango and 14% pangola grass hay) in calf diets on in vitro gas production, in situ digestibility, intake, apparent digestibility, and ruminal characteristics. Materials and Methods: The diets contained 0 (T0), 30 (T1), 45 (T2), and 60% (T3) mango silage. The partial (24, 48, and 72 h) and cumulative (72 h) biogas, CH4 production, and degradation were determined in the in vitro evaluation. In situ digestibility and estimators of fermentation kinetics of dry matter (DM) and organic matter (OM) were determined. Intake, apparent nutrient digestibility, and rumen parameters of calves (200 kg) were evaluated in a 4 × 4 Latin square design. Response to increased mango silage was calculated by linear and quadratic orthogonal contrasts. Results: In vitro partial and cumulative biogas production decreased linearly (p < 0.05), and the partial and cumulative CH4 production did not show linear or quadratic contrast (p > 0.05); in vitro DM degradation, in vitro neutral detergent fiber degradation, and in vitro acid detergent fiber degradation showed a linear increase (p < 0.05). In situ dry matter digestibility (DMDis), in situ organic matter digestibility (OMDis), b, a + b, c, and effective digestibility (ED) of DMDis, a, a + b, c, and ED of OMDis increased linearly (p < 0.05). Dry matter intake, OM intake, and crude protein intake showed a linear increase (p < 0.05); NDF intake and ADF intake presented a quadratic behavior (p < 0.05). Apparent digestibility of DM, OM, CP, and hemicellulose, pH, N-NH3, total bacterial count, acetate, propionate, butyrate, volatile fatty acids, acetate: propionate ratio, cellulolytic bacteria, and protozoa did not present a linear or quadratic orthogonal effect (p > 0.05). Conclusion: The in vitro, in situ, and in vivo variables demonstrated that up to 60% mango silage can be used for the intensive fattening of calves in confinement. Keywords: alternative feed, alternative feeding, cattle, silage, tropics.

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Whole-Plant Corn Silage Improves Rumen Fermentation and Growth Performance of Beef Cattle by Altering Rumen Microbiota

Cited by 3 publications

References 23 publications

Effects of fermented herbal tea residue on meat quality, rumen fermentation parameters and microbes of black goats

Effects of fermented herbal tea residue on meat quality, rumen fermentation parameters and microbes of black goats

Analysis of rumen Bacterial diversity in Mongolian sheep based on 16S rDNA sequencing

Effect of waste mango silage on the in vitro gas production, in situ digestibility, intake, apparent digestibility, and ruminal characteristics in calf diets

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