Brangus cows have ovarian reserve parameters more like Brahman than Angus cows
Bos indicus females have more surface antral follicles than Bos taurus females; however, histological studies demonstrated no difference in total number of primordial follicles between these two biological types of cattle. Primordial follicle density in the ovary was less in Nelore ovaries compared...
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| Veröffentlicht in: | Animal reproduction science 2019-10, Vol.209, p.106170-106170, Article 106170 |
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| creator | Cushman, Robert A. Soares, Émerson M. Yake, Hannah K. Patterson, Allyson L. Rosasco, Shelby L. Beard, Joslyn K. Northrop, Emmalee J. Rich, Jerica J.J. Miles, Jeremy R. Chase, Chadwick C. Gonda, Michael G. Perry, George A. McNeel, Anthony K. Summers, Adam F. |
| description | Bos indicus females have more surface antral follicles than Bos taurus females; however, histological studies demonstrated no difference in total number of primordial follicles between these two biological types of cattle. Primordial follicle density in the ovary was less in Nelore ovaries compared to Angus ovaries, but no studies have examined the primordial follicle density in Bos indicus cross-bred females. It, therefore, was hypothesized that primordial follicle density in the ovary would decrease as percentage Bos indicus increased. Ovaries were collected from cross-bred Angus (n = 32, no Bos indicus influence), Brangus (n = 15), or Brahman (n = 9) cows and prepared for histological evaluation. There was no difference in total number of primordial follicles per ovary between breeds (P > 0.10). When numbers of primordial follicles were expressed on a per gram of ovarian tissue basis, there were fewer primordial follicles per gram of ovarian tissue in Brangus and Brahman cows than in Angus cows (P 0.10). Differences in primordial follicle density could indicate differences in capacity of ovarian stroma to produce factors necessary for oogonial proliferation and primordial follicle formation among breeds. Identifying these factors could improve the aprroach for culturing pre-antral follicles of cattle. Furthermore, these results explain why ultrasonographic antral follicle counts may need to be adjusted to a greater threshold to predict size of the ovarian reserve and determine ovarian reserve related reproductive traits in Bos indicus females. |
| doi_str_mv | 10.1016/j.anireprosci.2019.106170 |
| format | Article |
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Primordial follicle density in the ovary was less in Nelore ovaries compared to Angus ovaries, but no studies have examined the primordial follicle density in Bos indicus cross-bred females. It, therefore, was hypothesized that primordial follicle density in the ovary would decrease as percentage Bos indicus increased. Ovaries were collected from cross-bred Angus (n = 32, no Bos indicus influence), Brangus (n = 15), or Brahman (n = 9) cows and prepared for histological evaluation. There was no difference in total number of primordial follicles per ovary between breeds (P > 0.10). When numbers of primordial follicles were expressed on a per gram of ovarian tissue basis, there were fewer primordial follicles per gram of ovarian tissue in Brangus and Brahman cows than in Angus cows (P < 0.05). Brangus cows did not differ from Brahman cows in primordial follicle density (P > 0.10). Differences in primordial follicle density could indicate differences in capacity of ovarian stroma to produce factors necessary for oogonial proliferation and primordial follicle formation among breeds. Identifying these factors could improve the aprroach for culturing pre-antral follicles of cattle. Furthermore, these results explain why ultrasonographic antral follicle counts may need to be adjusted to a greater threshold to predict size of the ovarian reserve and determine ovarian reserve related reproductive traits in Bos indicus females.</description><identifier>ISSN: 0378-4320</identifier><identifier>EISSN: 1873-2232</identifier><identifier>DOI: 10.1016/j.anireprosci.2019.106170</identifier><identifier>PMID: 31514925</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Angus ; Animals ; Brahman ; Brangus ; Breed ; Breeding ; Cattle ; Cattle - anatomy & histology ; Cattle - classification ; Cell Count ; Cell Size ; cows ; crossbreds ; Female ; histology ; Nellore ; Organ Size ; Ovarian Follicle - anatomy & histology ; Ovarian Follicle - cytology ; ovarian follicles ; Ovarian reserve ; Ovarian Reserve - physiology ; Ovary - anatomy & histology ; Ovary - cytology ; Pedigree ; reproductive traits ; Species Specificity ; ultrasonography ; zebu</subject><ispartof>Animal reproduction science, 2019-10, Vol.209, p.106170-106170, Article 106170</ispartof><rights>2019</rights><rights>Published by Elsevier B.V.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c461t-edae5c5f8ba8b5c28080df5de223a1c358b3259fa415e77f5848bb45deac87ff3</citedby><cites>FETCH-LOGICAL-c461t-edae5c5f8ba8b5c28080df5de223a1c358b3259fa415e77f5848bb45deac87ff3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0378432019303902$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31514925$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Cushman, Robert A.</creatorcontrib><creatorcontrib>Soares, Émerson M.</creatorcontrib><creatorcontrib>Yake, Hannah K.</creatorcontrib><creatorcontrib>Patterson, Allyson L.</creatorcontrib><creatorcontrib>Rosasco, Shelby L.</creatorcontrib><creatorcontrib>Beard, Joslyn K.</creatorcontrib><creatorcontrib>Northrop, Emmalee J.</creatorcontrib><creatorcontrib>Rich, Jerica J.J.</creatorcontrib><creatorcontrib>Miles, Jeremy R.</creatorcontrib><creatorcontrib>Chase, Chadwick C.</creatorcontrib><creatorcontrib>Gonda, Michael G.</creatorcontrib><creatorcontrib>Perry, George A.</creatorcontrib><creatorcontrib>McNeel, Anthony K.</creatorcontrib><creatorcontrib>Summers, Adam F.</creatorcontrib><title>Brangus cows have ovarian reserve parameters more like Brahman than Angus cows</title><title>Animal reproduction science</title><addtitle>Anim Reprod Sci</addtitle><description>Bos indicus females have more surface antral follicles than Bos taurus females; however, histological studies demonstrated no difference in total number of primordial follicles between these two biological types of cattle. Primordial follicle density in the ovary was less in Nelore ovaries compared to Angus ovaries, but no studies have examined the primordial follicle density in Bos indicus cross-bred females. It, therefore, was hypothesized that primordial follicle density in the ovary would decrease as percentage Bos indicus increased. Ovaries were collected from cross-bred Angus (n = 32, no Bos indicus influence), Brangus (n = 15), or Brahman (n = 9) cows and prepared for histological evaluation. There was no difference in total number of primordial follicles per ovary between breeds (P > 0.10). When numbers of primordial follicles were expressed on a per gram of ovarian tissue basis, there were fewer primordial follicles per gram of ovarian tissue in Brangus and Brahman cows than in Angus cows (P < 0.05). Brangus cows did not differ from Brahman cows in primordial follicle density (P > 0.10). Differences in primordial follicle density could indicate differences in capacity of ovarian stroma to produce factors necessary for oogonial proliferation and primordial follicle formation among breeds. Identifying these factors could improve the aprroach for culturing pre-antral follicles of cattle. Furthermore, these results explain why ultrasonographic antral follicle counts may need to be adjusted to a greater threshold to predict size of the ovarian reserve and determine ovarian reserve related reproductive traits in Bos indicus females.</description><subject>Angus</subject><subject>Animals</subject><subject>Brahman</subject><subject>Brangus</subject><subject>Breed</subject><subject>Breeding</subject><subject>Cattle</subject><subject>Cattle - anatomy & histology</subject><subject>Cattle - classification</subject><subject>Cell Count</subject><subject>Cell Size</subject><subject>cows</subject><subject>crossbreds</subject><subject>Female</subject><subject>histology</subject><subject>Nellore</subject><subject>Organ Size</subject><subject>Ovarian Follicle - anatomy & histology</subject><subject>Ovarian Follicle - cytology</subject><subject>ovarian follicles</subject><subject>Ovarian reserve</subject><subject>Ovarian Reserve - physiology</subject><subject>Ovary - anatomy & histology</subject><subject>Ovary - cytology</subject><subject>Pedigree</subject><subject>reproductive traits</subject><subject>Species Specificity</subject><subject>ultrasonography</subject><subject>zebu</subject><issn>0378-4320</issn><issn>1873-2232</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkMtOwzAQRS0EoqXwCyjs2KT4ESfOslS8JAQbWFuOM6EueRQ7LeLvmSqlYgcbW7bOvTM6hFwwOmWUpVfLqWmdh5XvgnVTTlmO_ynL6AEZM5WJmHPBD8mYikzFieB0RE5CWFJKszTNj8lIMMmSnMsxebr2pn1bh8h2nyFamA1E3cZ4Z9rIQwCP75XxpoEefIiazkNUu3eIMLZoEOoXeMz2DafkqDJ1gLPdPSGvtzcv8_v48fnuYT57jG2Ssj6G0oC0slKFUYW0XFFFy0qWgIsbZoVUheAyr0zCJGRZJVWiiiJBwFiVVZWYkMuhFx18rCH0unHBQl2bFrp10FwIyZgSPP0b5TnNqURLiOYDatFs8FDplXeN8V-aUb01r5f6l3m9Na8H85g9341ZFw2U--SPagTmAwDoZePAa6yA1kKJhbbXZef-MeYbSG2bJw</recordid><startdate>20191001</startdate><enddate>20191001</enddate><creator>Cushman, Robert A.</creator><creator>Soares, Émerson M.</creator><creator>Yake, Hannah K.</creator><creator>Patterson, Allyson L.</creator><creator>Rosasco, Shelby L.</creator><creator>Beard, Joslyn K.</creator><creator>Northrop, Emmalee J.</creator><creator>Rich, Jerica J.J.</creator><creator>Miles, Jeremy R.</creator><creator>Chase, Chadwick C.</creator><creator>Gonda, Michael G.</creator><creator>Perry, George A.</creator><creator>McNeel, Anthony K.</creator><creator>Summers, Adam F.</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7S9</scope><scope>L.6</scope></search><sort><creationdate>20191001</creationdate><title>Brangus cows have ovarian reserve parameters more like Brahman than Angus cows</title><author>Cushman, Robert A. ; Soares, Émerson M. ; Yake, Hannah K. ; Patterson, Allyson L. ; Rosasco, Shelby L. ; Beard, Joslyn K. ; Northrop, Emmalee J. ; Rich, Jerica J.J. ; Miles, Jeremy R. ; Chase, Chadwick C. ; Gonda, Michael G. ; Perry, George A. ; McNeel, Anthony K. ; Summers, Adam F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c461t-edae5c5f8ba8b5c28080df5de223a1c358b3259fa415e77f5848bb45deac87ff3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Angus</topic><topic>Animals</topic><topic>Brahman</topic><topic>Brangus</topic><topic>Breed</topic><topic>Breeding</topic><topic>Cattle</topic><topic>Cattle - anatomy & histology</topic><topic>Cattle - classification</topic><topic>Cell Count</topic><topic>Cell Size</topic><topic>cows</topic><topic>crossbreds</topic><topic>Female</topic><topic>histology</topic><topic>Nellore</topic><topic>Organ Size</topic><topic>Ovarian Follicle - anatomy & histology</topic><topic>Ovarian Follicle - cytology</topic><topic>ovarian follicles</topic><topic>Ovarian reserve</topic><topic>Ovarian Reserve - physiology</topic><topic>Ovary - anatomy & histology</topic><topic>Ovary - cytology</topic><topic>Pedigree</topic><topic>reproductive traits</topic><topic>Species Specificity</topic><topic>ultrasonography</topic><topic>zebu</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cushman, Robert A.</creatorcontrib><creatorcontrib>Soares, Émerson M.</creatorcontrib><creatorcontrib>Yake, Hannah K.</creatorcontrib><creatorcontrib>Patterson, Allyson L.</creatorcontrib><creatorcontrib>Rosasco, Shelby L.</creatorcontrib><creatorcontrib>Beard, Joslyn K.</creatorcontrib><creatorcontrib>Northrop, Emmalee J.</creatorcontrib><creatorcontrib>Rich, Jerica J.J.</creatorcontrib><creatorcontrib>Miles, Jeremy R.</creatorcontrib><creatorcontrib>Chase, Chadwick C.</creatorcontrib><creatorcontrib>Gonda, Michael G.</creatorcontrib><creatorcontrib>Perry, George A.</creatorcontrib><creatorcontrib>McNeel, Anthony K.</creatorcontrib><creatorcontrib>Summers, Adam F.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>Animal reproduction science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cushman, Robert A.</au><au>Soares, Émerson M.</au><au>Yake, Hannah K.</au><au>Patterson, Allyson L.</au><au>Rosasco, Shelby L.</au><au>Beard, Joslyn K.</au><au>Northrop, Emmalee J.</au><au>Rich, Jerica J.J.</au><au>Miles, Jeremy R.</au><au>Chase, Chadwick C.</au><au>Gonda, Michael G.</au><au>Perry, George A.</au><au>McNeel, Anthony K.</au><au>Summers, Adam F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Brangus cows have ovarian reserve parameters more like Brahman than Angus cows</atitle><jtitle>Animal reproduction science</jtitle><addtitle>Anim Reprod Sci</addtitle><date>2019-10-01</date><risdate>2019</risdate><volume>209</volume><spage>106170</spage><epage>106170</epage><pages>106170-106170</pages><artnum>106170</artnum><issn>0378-4320</issn><eissn>1873-2232</eissn><abstract>Bos indicus females have more surface antral follicles than Bos taurus females; however, histological studies demonstrated no difference in total number of primordial follicles between these two biological types of cattle. Primordial follicle density in the ovary was less in Nelore ovaries compared to Angus ovaries, but no studies have examined the primordial follicle density in Bos indicus cross-bred females. It, therefore, was hypothesized that primordial follicle density in the ovary would decrease as percentage Bos indicus increased. Ovaries were collected from cross-bred Angus (n = 32, no Bos indicus influence), Brangus (n = 15), or Brahman (n = 9) cows and prepared for histological evaluation. There was no difference in total number of primordial follicles per ovary between breeds (P > 0.10). When numbers of primordial follicles were expressed on a per gram of ovarian tissue basis, there were fewer primordial follicles per gram of ovarian tissue in Brangus and Brahman cows than in Angus cows (P < 0.05). Brangus cows did not differ from Brahman cows in primordial follicle density (P > 0.10). Differences in primordial follicle density could indicate differences in capacity of ovarian stroma to produce factors necessary for oogonial proliferation and primordial follicle formation among breeds. Identifying these factors could improve the aprroach for culturing pre-antral follicles of cattle. Furthermore, these results explain why ultrasonographic antral follicle counts may need to be adjusted to a greater threshold to predict size of the ovarian reserve and determine ovarian reserve related reproductive traits in Bos indicus females.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>31514925</pmid><doi>10.1016/j.anireprosci.2019.106170</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Angus Animals Brahman Brangus Breed Breeding Cattle Cattle - anatomy & histology Cattle - classification Cell Count Cell Size cows crossbreds Female histology Nellore Organ Size Ovarian Follicle - anatomy & histology Ovarian Follicle - cytology ovarian follicles Ovarian reserve Ovarian Reserve - physiology Ovary - anatomy & histology Ovary - cytology Pedigree reproductive traits Species Specificity ultrasonography zebu |
| title | Brangus cows have ovarian reserve parameters more like Brahman than Angus cows |
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