Effects of eCG in Milking Dairy Cows with High Levels of BUN and Synchronized with Ovsynch Protocol
Previous research indicates that high blood urea nitrogen (BUN) concentrations are associated with decreased fertility in lactating dairy cows.This experiment was done to evaluate the effects of equine chorionic gonadotropin (eCG) administration (with or without eCG) on fertility of lactating dairy...
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| Veröffentlicht in: | Biosciences, biotechnology research Asia biotechnology research Asia, 2016-06, Vol.13 (2), p.769-777 |
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| creator | Karami, F. Fallah Rad, A.H. Mesgaran, M. Danesh Azizzadeh, M. Heidarpour, M. |
| description | Previous research indicates that high blood urea nitrogen (BUN) concentrations are associated with decreased fertility in lactating dairy cows.This experiment was done to evaluate the effects of equine chorionic gonadotropin (eCG) administration (with or without eCG) on fertility of lactating dairy cows with different levels of BUN subjected to fixed-time artificial insemination (FTAI).Ovulation was synchronized in all cows using Presynch-Ovsynch program and start 37 days post parturition(pp). Blood samples were collected on days 50-55 pp to assess BUN and cows were classified as with high urea when BUN was 20< ng/mL(n=64); otherwise, they were classified as cows with optimal urea when BUN was >10 and |
| doi_str_mv | 10.13005/bbra/2096 |
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Danesh ; Azizzadeh, M. ; Heidarpour, M.</creator><creatorcontrib>Karami, F. ; Fallah Rad, A.H. ; Mesgaran, M. Danesh ; Azizzadeh, M. ; Heidarpour, M.</creatorcontrib><description>Previous research indicates that high blood urea nitrogen (BUN) concentrations are associated with decreased fertility in lactating dairy cows.This experiment was done to evaluate the effects of equine chorionic gonadotropin (eCG) administration (with or without eCG) on fertility of lactating dairy cows with different levels of BUN subjected to fixed-time artificial insemination (FTAI).Ovulation was synchronized in all cows using Presynch-Ovsynch program and start 37 days post parturition(pp). Blood samples were collected on days 50-55 pp to assess BUN and cows were classified as with high urea when BUN was 20< ng/mL(n=64); otherwise, they were classified as cows with optimal urea when BUN was >10 and <15 (n=62). Within each group, cows were assigned randomly to receive either 600 IU eCG concurrent with PGF2a treatment of the Ovsynch protocol (treatment cows)or with no further treatment (control cows). Blood samples were collected on Days 0 and 5 after FTAI to evaluate the effect of eCG administration on synchornization and plasma concentration of P4. Pregnancy diagnoses were performed by ultrasound. No treatment effects were detected for Pregnancy per AI at Days 30. However, P/AI at Days 30 was not affected by treatment with eCG but P/AI at 60 days post-AI in cow with high BUN levels in control group was less and differed significantly than treatment group with optimal BUN (OR=4.722; P=0.016). This differ significant, P/AI at 60 days post-AI no observed in cow with high BUN that treatment with eCG. P4 concentrations on Days 5 differed significantly between treatments and control group in both levels of BUN concentration. Inclusion of eCG in ovsynch protocol increased progestron concentrations in early time of luteal phase after AI. The use of eCG in ovsynch protocol will improve reproductive efficiency in dairy cows with high levels of BUN.</description><identifier>ISSN: 0973-1245</identifier><identifier>EISSN: 2456-2602</identifier><identifier>DOI: 10.13005/bbra/2096</identifier><language>eng</language><publisher>Bhopal: Biosciences Biotechnology Research Asia</publisher><subject>Animal lactation ; Artificial insemination ; Blood ; Cattle ; Chorionic gonadotropin ; Fertility ; Gonadotropins ; Milk ; Milking ; Nitrogen ; Ovulation ; Parturition ; Pituitary (anterior) ; Plasma ; Pregnancy ; Prostaglandins ; Proteins ; Reproduction (biology) ; Time synchronization ; Ultrasound ; Urea ; Ureas</subject><ispartof>Biosciences, biotechnology research Asia, 2016-06, Vol.13 (2), p.769-777</ispartof><rights>2018. This work is licensed under http://creativecommons.org/licenses/by-nc-sa/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1406-ac4c4c307b9ad68e3328248485d0f1b08dad756cf01abe0015c2a06066db23fd3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Karami, F.</creatorcontrib><creatorcontrib>Fallah Rad, A.H.</creatorcontrib><creatorcontrib>Mesgaran, M. Danesh</creatorcontrib><creatorcontrib>Azizzadeh, M.</creatorcontrib><creatorcontrib>Heidarpour, M.</creatorcontrib><title>Effects of eCG in Milking Dairy Cows with High Levels of BUN and Synchronized with Ovsynch Protocol</title><title>Biosciences, biotechnology research Asia</title><description>Previous research indicates that high blood urea nitrogen (BUN) concentrations are associated with decreased fertility in lactating dairy cows.This experiment was done to evaluate the effects of equine chorionic gonadotropin (eCG) administration (with or without eCG) on fertility of lactating dairy cows with different levels of BUN subjected to fixed-time artificial insemination (FTAI).Ovulation was synchronized in all cows using Presynch-Ovsynch program and start 37 days post parturition(pp). Blood samples were collected on days 50-55 pp to assess BUN and cows were classified as with high urea when BUN was 20< ng/mL(n=64); otherwise, they were classified as cows with optimal urea when BUN was >10 and <15 (n=62). Within each group, cows were assigned randomly to receive either 600 IU eCG concurrent with PGF2a treatment of the Ovsynch protocol (treatment cows)or with no further treatment (control cows). Blood samples were collected on Days 0 and 5 after FTAI to evaluate the effect of eCG administration on synchornization and plasma concentration of P4. Pregnancy diagnoses were performed by ultrasound. No treatment effects were detected for Pregnancy per AI at Days 30. However, P/AI at Days 30 was not affected by treatment with eCG but P/AI at 60 days post-AI in cow with high BUN levels in control group was less and differed significantly than treatment group with optimal BUN (OR=4.722; P=0.016). This differ significant, P/AI at 60 days post-AI no observed in cow with high BUN that treatment with eCG. P4 concentrations on Days 5 differed significantly between treatments and control group in both levels of BUN concentration. Inclusion of eCG in ovsynch protocol increased progestron concentrations in early time of luteal phase after AI. The use of eCG in ovsynch protocol will improve reproductive efficiency in dairy cows with high levels of BUN.</description><subject>Animal lactation</subject><subject>Artificial insemination</subject><subject>Blood</subject><subject>Cattle</subject><subject>Chorionic gonadotropin</subject><subject>Fertility</subject><subject>Gonadotropins</subject><subject>Milk</subject><subject>Milking</subject><subject>Nitrogen</subject><subject>Ovulation</subject><subject>Parturition</subject><subject>Pituitary (anterior)</subject><subject>Plasma</subject><subject>Pregnancy</subject><subject>Prostaglandins</subject><subject>Proteins</subject><subject>Reproduction (biology)</subject><subject>Time synchronization</subject><subject>Ultrasound</subject><subject>Urea</subject><subject>Ureas</subject><issn>0973-1245</issn><issn>2456-2602</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNotkF1LwzAUhoMoOOZu_AUB74S6k6RJu0utugnTCbrrkuZjy6zNTLqN-evtNnkvDrw8nBcehK4J3BEGwIdVFeSQwkicoR5NuUioAHqOejDKWEK65hINYlwBQAdBRkgPqSdrjWoj9habYoxdg19d_eWaBX6ULuxx4XcR71y7xBO3WOKp2Zr6SD_M37BsNP7YN2oZfON-jT6Bs208dPg9-NYrX1-hCyvraAb_t4_mz0-fxSSZzsYvxf00USQFkUiVdmGQVSOpRW4YozlN8zTnGiypINdSZ1woC0RWBoBwRSUIEEJXlFnN-ujm9Hcd_M_GxLZc-U1ousmSEqAs45yRjro9USr4GIOx5Tq4bxn2JYHy6LE8eCwPHtkfyWhkPQ</recordid><startdate>20160628</startdate><enddate>20160628</enddate><creator>Karami, F.</creator><creator>Fallah Rad, A.H.</creator><creator>Mesgaran, M. Danesh</creator><creator>Azizzadeh, M.</creator><creator>Heidarpour, M.</creator><general>Biosciences Biotechnology Research Asia</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>LK8</scope><scope>M7P</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20160628</creationdate><title>Effects of eCG in Milking Dairy Cows with High Levels of BUN and Synchronized with Ovsynch Protocol</title><author>Karami, F. ; Fallah Rad, A.H. ; Mesgaran, M. Danesh ; Azizzadeh, M. ; Heidarpour, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1406-ac4c4c307b9ad68e3328248485d0f1b08dad756cf01abe0015c2a06066db23fd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Animal lactation</topic><topic>Artificial insemination</topic><topic>Blood</topic><topic>Cattle</topic><topic>Chorionic gonadotropin</topic><topic>Fertility</topic><topic>Gonadotropins</topic><topic>Milk</topic><topic>Milking</topic><topic>Nitrogen</topic><topic>Ovulation</topic><topic>Parturition</topic><topic>Pituitary (anterior)</topic><topic>Plasma</topic><topic>Pregnancy</topic><topic>Prostaglandins</topic><topic>Proteins</topic><topic>Reproduction (biology)</topic><topic>Time synchronization</topic><topic>Ultrasound</topic><topic>Urea</topic><topic>Ureas</topic><toplevel>online_resources</toplevel><creatorcontrib>Karami, F.</creatorcontrib><creatorcontrib>Fallah Rad, A.H.</creatorcontrib><creatorcontrib>Mesgaran, M. Danesh</creatorcontrib><creatorcontrib>Azizzadeh, M.</creatorcontrib><creatorcontrib>Heidarpour, M.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>Advanced Technologies & Aerospace Database (1962 - current)</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection (Proquest) (PQ_SDU_P3)</collection><collection>ProQuest Biological Science Collection</collection><collection>Biological Science Database</collection><collection>ProQuest Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Publicly Available Content (ProQuest)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Biosciences, biotechnology research Asia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Karami, F.</au><au>Fallah Rad, A.H.</au><au>Mesgaran, M. Danesh</au><au>Azizzadeh, M.</au><au>Heidarpour, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of eCG in Milking Dairy Cows with High Levels of BUN and Synchronized with Ovsynch Protocol</atitle><jtitle>Biosciences, biotechnology research Asia</jtitle><date>2016-06-28</date><risdate>2016</risdate><volume>13</volume><issue>2</issue><spage>769</spage><epage>777</epage><pages>769-777</pages><issn>0973-1245</issn><eissn>2456-2602</eissn><abstract>Previous research indicates that high blood urea nitrogen (BUN) concentrations are associated with decreased fertility in lactating dairy cows.This experiment was done to evaluate the effects of equine chorionic gonadotropin (eCG) administration (with or without eCG) on fertility of lactating dairy cows with different levels of BUN subjected to fixed-time artificial insemination (FTAI).Ovulation was synchronized in all cows using Presynch-Ovsynch program and start 37 days post parturition(pp). Blood samples were collected on days 50-55 pp to assess BUN and cows were classified as with high urea when BUN was 20< ng/mL(n=64); otherwise, they were classified as cows with optimal urea when BUN was >10 and <15 (n=62). Within each group, cows were assigned randomly to receive either 600 IU eCG concurrent with PGF2a treatment of the Ovsynch protocol (treatment cows)or with no further treatment (control cows). Blood samples were collected on Days 0 and 5 after FTAI to evaluate the effect of eCG administration on synchornization and plasma concentration of P4. Pregnancy diagnoses were performed by ultrasound. No treatment effects were detected for Pregnancy per AI at Days 30. However, P/AI at Days 30 was not affected by treatment with eCG but P/AI at 60 days post-AI in cow with high BUN levels in control group was less and differed significantly than treatment group with optimal BUN (OR=4.722; P=0.016). This differ significant, P/AI at 60 days post-AI no observed in cow with high BUN that treatment with eCG. P4 concentrations on Days 5 differed significantly between treatments and control group in both levels of BUN concentration. Inclusion of eCG in ovsynch protocol increased progestron concentrations in early time of luteal phase after AI. The use of eCG in ovsynch protocol will improve reproductive efficiency in dairy cows with high levels of BUN.</abstract><cop>Bhopal</cop><pub>Biosciences Biotechnology Research Asia</pub><doi>10.13005/bbra/2096</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Animal lactation Artificial insemination Blood Cattle Chorionic gonadotropin Fertility Gonadotropins Milk Milking Nitrogen Ovulation Parturition Pituitary (anterior) Plasma Pregnancy Prostaglandins Proteins Reproduction (biology) Time synchronization Ultrasound Urea Ureas |
| title | Effects of eCG in Milking Dairy Cows with High Levels of BUN and Synchronized with Ovsynch Protocol |
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