Effect of asynchronous nitrogen and energy supply on growth of ruminal bacteria in batch culture.
Identifieur interne : 001518 ( Main/Exploration ); précédent : 001517; suivant : 001519Effect of asynchronous nitrogen and energy supply on growth of ruminal bacteria in batch culture.
Auteurs : J R Newbold [États-Unis] ; S R RustSource :
- Journal of animal science [ 0021-8812 ] ; 1992.
Descripteurs français
- KwdFr :
- Acides gras volatils (analyse), Amidon (métabolisme), Ammoniac (analyse), Animaux (MeSH), Azote (métabolisme), Bactéries (croissance et développement), Bovins (MeSH), Concentration en ions d'hydrogène (MeSH), Fermentation (MeSH), Glucides (analyse), Glucose (métabolisme), Mâle (MeSH), Métabolisme glucidique (MeSH), Protéines (métabolisme), Rumen (microbiologie), Soja (MeSH), Substances tampon (MeSH), Urée (métabolisme), Zea mays (MeSH).
- MESH :
- analyse : Acides gras volatils, Ammoniac, Glucides.
- croissance et développement : Bactéries.
- microbiologie : Rumen.
- métabolisme : Amidon, Azote, Glucose, Protéines, Urée.
- Animaux, Bovins, Concentration en ions d'hydrogène, Fermentation, Mâle, Métabolisme glucidique, Soja, Substances tampon, Zea mays.
English descriptors
- KwdEn :
- Ammonia (analysis), Animals (MeSH), Bacteria (growth & development), Buffers (MeSH), Carbohydrate Metabolism (MeSH), Carbohydrates (analysis), Cattle (MeSH), Fatty Acids, Volatile (analysis), Fermentation (MeSH), Glucose (metabolism), Hydrogen-Ion Concentration (MeSH), Male (MeSH), Nitrogen (metabolism), Proteins (metabolism), Rumen (microbiology), Soybeans (MeSH), Starch (metabolism), Urea (metabolism), Zea mays (MeSH).
- MESH :
- chemical , analysis : Ammonia, Carbohydrates, Fatty Acids, Volatile.
- growth & development : Bacteria.
- chemical , metabolism : Glucose, Nitrogen, Proteins, Starch, Urea.
- microbiology : Rumen.
- Animals, Buffers, Carbohydrate Metabolism, Cattle, Fermentation, Hydrogen-Ion Concentration, Male, Soybeans, Zea mays.
Abstract
The effects of an asynchronous supply of fixed amounts of N and carbohydrate on bacterial growth were measured in two batch culture experiments. In Exp. 1, aqueous glucose and urea solutions were added at hourly intervals to culture flasks containing strained ruminal liquor and phosphate/bicarbonate buffer. The ratio of urea N to glucose was either constant (Synchrony, 26 mg of N/g of glucose) or increased exponentially over time (Asynchrony, .013 to 48,900 mg of N/g of glucose). After 12 h, identical quantities of glucose and urea had been added in both treatments. Bacterial population size (estimated from optical density) was greater (P less than .001) from 5 to 8 h of incubation for Synchrony than for Asynchrony, but after 12 h there was no difference (P greater than .1) between treatments. In Exp. 2, large (1 to 1.5 mm) and small (less than .5 mm) corn particles were used as slowly and rapidly degraded energy sources, with soybean meal (1 to 1.5 mm) and a papaic digest of soybean meal as sources of slowly and rapidly degraded N. At incubation times, when the ratio between total starch and N degraded was equal between treatments, bacterial population size was unaffected by the relative rate of N and OM supply. In both experiments, bacterial growth recovered quickly from transient restriction caused by deficits of N.
DOI: 10.2527/1992.702538x
PubMed: 1548218
Affiliations:
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type="state">Michigan</region></placeName></affiliation></author><author><name sortKey="Rust, S R" sort="Rust, S R" uniqKey="Rust S" first="S R" last="Rust">S R Rust</name></author></analytic><series><title level="j">Journal of animal science</title><idno type="ISSN">0021-8812</idno><imprint><date when="1992" type="published">1992</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ammonia (analysis)</term><term>Animals (MeSH)</term><term>Bacteria (growth & development)</term><term>Buffers (MeSH)</term><term>Carbohydrate Metabolism (MeSH)</term><term>Carbohydrates (analysis)</term><term>Cattle (MeSH)</term><term>Fatty Acids, Volatile (analysis)</term><term>Fermentation (MeSH)</term><term>Glucose (metabolism)</term><term>Hydrogen-Ion Concentration (MeSH)</term><term>Male (MeSH)</term><term>Nitrogen (metabolism)</term><term>Proteins (metabolism)</term><term>Rumen (microbiology)</term><term>Soybeans (MeSH)</term><term>Starch (metabolism)</term><term>Urea (metabolism)</term><term>Zea mays (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acides gras volatils (analyse)</term><term>Amidon (métabolisme)</term><term>Ammoniac (analyse)</term><term>Animaux (MeSH)</term><term>Azote (métabolisme)</term><term>Bactéries (croissance et développement)</term><term>Bovins (MeSH)</term><term>Concentration en ions d'hydrogène (MeSH)</term><term>Fermentation (MeSH)</term><term>Glucides (analyse)</term><term>Glucose (métabolisme)</term><term>Mâle (MeSH)</term><term>Métabolisme glucidique (MeSH)</term><term>Protéines (métabolisme)</term><term>Rumen (microbiologie)</term><term>Soja (MeSH)</term><term>Substances tampon (MeSH)</term><term>Urée (métabolisme)</term><term>Zea mays (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Ammonia</term><term>Carbohydrates</term><term>Fatty Acids, Volatile</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Acides gras volatils</term><term>Ammoniac</term><term>Glucides</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Bactéries</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Bacteria</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Glucose</term><term>Nitrogen</term><term>Proteins</term><term>Starch</term><term>Urea</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Rumen</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Rumen</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Amidon</term><term>Azote</term><term>Glucose</term><term>Protéines</term><term>Urée</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Buffers</term><term>Carbohydrate Metabolism</term><term>Cattle</term><term>Fermentation</term><term>Hydrogen-Ion Concentration</term><term>Male</term><term>Soybeans</term><term>Zea mays</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Animaux</term><term>Bovins</term><term>Concentration en ions d'hydrogène</term><term>Fermentation</term><term>Mâle</term><term>Métabolisme glucidique</term><term>Soja</term><term>Substances tampon</term><term>Zea mays</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The effects of an asynchronous supply of fixed amounts of N and carbohydrate on bacterial growth were measured in two batch culture experiments. In Exp. 1, aqueous glucose and urea solutions were added at hourly intervals to culture flasks containing strained ruminal liquor and phosphate/bicarbonate buffer. The ratio of urea N to glucose was either constant (Synchrony, 26 mg of N/g of glucose) or increased exponentially over time (Asynchrony, .013 to 48,900 mg of N/g of glucose). After 12 h, identical quantities of glucose and urea had been added in both treatments. Bacterial population size (estimated from optical density) was greater (P less than .001) from 5 to 8 h of incubation for Synchrony than for Asynchrony, but after 12 h there was no difference (P greater than .1) between treatments. In Exp. 2, large (1 to 1.5 mm) and small (less than .5 mm) corn particles were used as slowly and rapidly degraded energy sources, with soybean meal (1 to 1.5 mm) and a papaic digest of soybean meal as sources of slowly and rapidly degraded N. At incubation times, when the ratio between total starch and N degraded was equal between treatments, bacterial population size was unaffected by the relative rate of N and OM supply. In both experiments, bacterial growth recovered quickly from transient restriction caused by deficits of N.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">1548218</PMID><DateCompleted><Year>1992</Year><Month>04</Month><Day>22</Day></DateCompleted><DateRevised><Year>2019</Year><Month>05</Month><Day>09</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0021-8812</ISSN><JournalIssue CitedMedium="Print"><Volume>70</Volume><Issue>2</Issue><PubDate><Year>1992</Year><Month>Feb</Month></PubDate></JournalIssue><Title>Journal of animal science</Title><ISOAbbreviation>J Anim Sci</ISOAbbreviation></Journal><ArticleTitle>Effect of asynchronous nitrogen and energy supply on growth of ruminal bacteria in batch culture.</ArticleTitle><Pagination><MedlinePgn>538-46</MedlinePgn></Pagination><Abstract><AbstractText>The effects of an asynchronous supply of fixed amounts of N and carbohydrate on bacterial growth were measured in two batch culture experiments. In Exp. 1, aqueous glucose and urea solutions were added at hourly intervals to culture flasks containing strained ruminal liquor and phosphate/bicarbonate buffer. The ratio of urea N to glucose was either constant (Synchrony, 26 mg of N/g of glucose) or increased exponentially over time (Asynchrony, .013 to 48,900 mg of N/g of glucose). After 12 h, identical quantities of glucose and urea had been added in both treatments. Bacterial population size (estimated from optical density) was greater (P less than .001) from 5 to 8 h of incubation for Synchrony than for Asynchrony, but after 12 h there was no difference (P greater than .1) between treatments. In Exp. 2, large (1 to 1.5 mm) and small (less than .5 mm) corn particles were used as slowly and rapidly degraded energy sources, with soybean meal (1 to 1.5 mm) and a papaic digest of soybean meal as sources of slowly and rapidly degraded N. At incubation times, when the ratio between total starch and N degraded was equal between treatments, bacterial population size was unaffected by the relative rate of N and OM supply. In both experiments, bacterial growth recovered quickly from transient restriction caused by deficits of N.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Newbold</LastName><ForeName>J R</ForeName><Initials>JR</Initials><AffiliationInfo><Affiliation>Department of Animal Science, Michigan State University, East Lansing 48824.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Rust</LastName><ForeName>S R</ForeName><Initials>SR</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>J Anim Sci</MedlineTA><NlmUniqueID>8003002</NlmUniqueID><ISSNLinking>0021-8812</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance 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MajorTopicYN="N">Cattle</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005232" MajorTopicYN="N">Fatty Acids, Volatile</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005285" MajorTopicYN="N">Fermentation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005947" MajorTopicYN="N">Glucose</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006863" MajorTopicYN="N">Hydrogen-Ion Concentration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008297" MajorTopicYN="N">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009584" MajorTopicYN="N">Nitrogen</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011506" MajorTopicYN="N">Proteins</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012417" MajorTopicYN="N">Rumen</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013025" MajorTopicYN="N">Soybeans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013213" MajorTopicYN="N">Starch</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014508" MajorTopicYN="N">Urea</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003313" MajorTopicYN="N">Zea mays</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1992</Year><Month>2</Month><Day>1</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1992</Year><Month>2</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1992</Year><Month>2</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">1548218</ArticleId><ArticleId IdType="doi">10.2527/1992.702538x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Michigan</li></region><settlement><li>East Lansing</li></settlement><orgName><li>Université d'État du Michigan</li></orgName></list><tree><noCountry><name sortKey="Rust, S R" sort="Rust, S R" uniqKey="Rust S" first="S R" last="Rust">S R Rust</name></noCountry><country name="États-Unis"><region name="Michigan"><name sortKey="Newbold, J R" sort="Newbold, J R" uniqKey="Newbold J" first="J R" last="Newbold">J R 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