دورية أكاديمية

Holstein and Jersey Steers Differ in Rumen Microbiota and Enteric Methane Emissions Even Fed the Same Total Mixed Ration.

التفاصيل البيبلوغرافية
العنوان: Holstein and Jersey Steers Differ in Rumen Microbiota and Enteric Methane Emissions Even Fed the Same Total Mixed Ration.
المؤلفون: Islam M; Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon, South Korea.; Department of Microbiology and Parasitology, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh., Kim SH; Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon, South Korea., Ramos SC; Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon, South Korea., Mamuad LL; Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon, South Korea., Son AR; Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon, South Korea., Yu Z; Department of Animal Sciences, The Ohio State University, Columbus, OH, United States., Lee SS; Institute of Agriculture and Life Science and University-Centered Labs, Gyeongsang National University, Jinju, South Korea., Cho YI; Animal Disease and Diagnostic Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon, South Korea., Lee SS; Ruminant Nutrition and Anaerobe Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon, South Korea.
المصدر: Frontiers in microbiology [Front Microbiol] 2021 Mar 18; Vol. 12, pp. 601061. Date of Electronic Publication: 2021 Mar 18 (Print Publication: 2021).
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Frontiers Research Foundation Country of Publication: Switzerland NLM ID: 101548977 Publication Model: eCollection Cited Medium: Print ISSN: 1664-302X (Print) Linking ISSN: 1664302X NLM ISO Abbreviation: Front Microbiol Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Lausanne : Frontiers Research Foundation
مستخلص: Previous studies have focused on the rumen microbiome and enteric methane (CH 4 ) emissions in dairy cows, yet little is known about steers, especially steers of dairy breeds. In the present study, we comparatively examined the rumen microbiota, fermentation characteristics, and CH 4 emissions from six non-cannulated Holstein (710.33 ± 43.02 kg) and six Jersey (559.67 ± 32.72 kg) steers. The steers were fed the same total mixed ration (TMR) for 30 days. After 25 days of adaptation to the diet, CH 4 emissions were measured using GreenFeed for three consecutive days, and rumen fluid samples were collected on last day using stomach tubing before feeding (0 h) and 6 h after feeding. CH 4 production (g/d/animal), CH 4 yield (g/kg DMI), and CH 4 intensity (g/kg BW 0.75 ) were higher in the Jersey steers than in the Holstein steers. The lowest pH value was recorded at 6 h after feeding. The Jersey steers had lower rumen pH and a higher concentration of ammonia-nitrogen (NH 3 -N). The Jersey steers had a numerically higher molar proportion of acetate than the Holstein steers, but the opposite was true for that of propionate. Metataxonomic analysis of the rumen microbiota showed that the two breeds had similar species richness, Shannon, and inverse Simpson diversity indexes. Principal coordinates analysis showed that the overall rumen microbiota was different between the two breeds. Both breeds were dominated by Prevotella ruminicola , and its highest relative abundance was observed 6 h after feeding. The genera Ethanoligenens , Succinivibrio , and the species Ethanoligenens harbinense, Succinivibrio dextrinosolvens, Prevotella micans, Prevotella copri, Prevotella oris, Prevotella baroniae , and Treponema succinifaciens were more abundant in Holstein steers while the genera Capnocytophaga, Lachnoclostridium, Barnesiella, Oscillibacter , Galbibacter , and the species Capnocytophaga cynodegmi, Galbibacter mesophilus, Barnesiella intestinihominis, Prevotella shahii , and Oscillibacter ruminantium in the Jersey steers. The Jersey steers were dominated by Methanobrevibacter millerae while the Holstein steers by Methanobrevibacter olleyae . The overall results suggest that sampling hour has little influence on the rumen microbiota; however, breeds of steers can affect the assemblage of the rumen microbiota and different mitigation strategies may be needed to effectively manipulate the rumen microbiota and mitigate enteric CH 4 emissions from these steers.
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
(Copyright © 2021 Islam, Kim, Ramos, Mamuad, Son, Yu, Lee, Cho and Lee.)
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فهرسة مساهمة: Keywords: Holstein steer; Jersey steer; enteric methane emissions; rumen fermentation; rumen microbiota
تواريخ الأحداث: Date Created: 20210419 Latest Revision: 20210421
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC8044996
DOI: 10.3389/fmicb.2021.601061
PMID: 33868186
قاعدة البيانات: MEDLINE
الوصف
تدمد:1664-302X
DOI:10.3389/fmicb.2021.601061