2022
DOI: 10.3390/ani12192606
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Effects of Feed Composition in Different Growth Stages on Rumen Fermentation and Microbial Diversity of Hanwoo Steers

Abstract: Ruminants are a major source of greenhouse gas emissions, and information on ruminant fermentation and microorganisms is essential to understand ruminant digestion, which is associated with environmental pollution. The present study investigated rumen fermentation and microbial diversity according to the three different growth stages of four Hanwoo steers: growing (12 months, G), early fattening (18 months, EF), and late fattening (25 months, LF). No significant differences were observed in rumen pH and ammoni… Show more

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Cited by 2 publications
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“…A good rumen environment will support the optimum growth of rumen microbes which have an important role in the process of pISSN 2621-9182 eISSN 2621-9190 DOI: 10.20956/hajas.v5i1.24777 feed degradation and feed fermentation in the rumen. The level of rumen pH for optimum feed fermentation in the rumen is 6 to 7 [1], [2], [3]. Whereas the concentration of ammonia for better feed degradation and fermentation is 85-300 mg/l or 6-21 mM [4].…”
Section: Introductionmentioning
confidence: 99%
“…A good rumen environment will support the optimum growth of rumen microbes which have an important role in the process of pISSN 2621-9182 eISSN 2621-9190 DOI: 10.20956/hajas.v5i1.24777 feed degradation and feed fermentation in the rumen. The level of rumen pH for optimum feed fermentation in the rumen is 6 to 7 [1], [2], [3]. Whereas the concentration of ammonia for better feed degradation and fermentation is 85-300 mg/l or 6-21 mM [4].…”
Section: Introductionmentioning
confidence: 99%
“…Differences in microbial population found in the different groups (M1, M2, M3, M4) can be related to the differences in feed intake during different stages, as feed affects the rumen microbiome. 1-3-day old heifers showed Streptococcus as dominant species, young calves fed with whole milk presented more Prevotella, and in adult cattle the dominant population was Bacteroidetes (Ryu et al, 2022). Moreover, the microbial fecal composition of dairy heifers changes constantly during the first weeks of life (Malmuthuge et al, 2014), when diet is constantly changing and adapting to the animal requirements.…”
Section: Hap Identificationmentioning
confidence: 99%