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Association of Anti-Mullerian Hormone, Inhibin A and B, With Genomic Prediction of Daughter Pregnancy Rate, Ovarian Responses, and Pregnancy Per Artificial Insemination in Lactating Dairy Cows
Association of Anti-Mullerian Hormone, Inhibin A and B, With Genomic Prediction of Daughte...
Association of Anti-Mullerian Hormone, Inhibin A and B, With Genomic Prediction of Daughter Pregnancy Rate, Ovarian Responses, and Pregnancy Per Artificial Insemination in Lactating Dairy Cows

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자료유형  
 학위논문 서양
최종처리일시  
20260202105149
ISBN  
9798297645417
DDC  
636
저자명  
Salman, Saleh.
서명/저자  
Association of Anti-Mullerian Hormone, Inhibin A and B, With Genomic Prediction of Daughter Pregnancy Rate, Ovarian Responses, and Pregnancy Per Artificial Insemination in Lactating Dairy Cows
발행사항  
[Sl] : University of California, Davis, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
102 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-04, Section: B.
주기사항  
Advisor: Lima, Fabio.
학위논문주기  
Thesis (Ph.D.)--University of California, Davis, 2025.
초록/해제  
요약Anti-Mullerian hormone (AMH) has emerged as a potential biomarker for super-ovulatory response ovarian reserve and reproductive performance in dairy cattle, yet its association with fertility traits and reproductive outcomes remains unclear. Moreover, inhibin A and B are gonadal hormones involved in the regulation of FSH and folliculogenesis; however, their association with reproductive physiology and fertility traits in dairy cattle remains largely unexplored. Furthermore, the relationship between AMH and inhibin A & B, as potential biomarkers for reproductive performance, and its association with GDPR has yet to be investigated. The objectives of this study were to evaluate the association of plasma concentration of AMH and inhibin A and B at the first gonadotropin-releasing hormone (G1) and prostaglandin F2α (PGF) of breeding Ovsynch of a Double-Ovsynch (DO) protocol with genomic prediction of daughter pregnancy rate (GDPR), ovulation at G1, and pregnancy per artificial insemination(P/AI). Lactating Holstein cows (n = 519) with data available for GDPR, ovarian dynamics at G1, PGF, and P/AI were used to investigate associations of AMH, GDPR, and pregnancy outcomes. At G1 and PGF, cows had their ovaries scanned by ultrasonography for characterization of ovarian structures, and blood samples were collected for assessment of AMH, inhibin-A, inhibin-B and progesterone (P4) concentrations. Univariate analyses were performed to explore the relationship among these hormones and parity, lactation number, body condition score (BCS) at G1 and PGF, GDPR at G1 and PGF, presence of corpus luteum (CL) 14mm, diameter of CL, presence of multiple CL, total luteal volume, presence of large antral follicles 10mm, diameter of the largest follicle, presence of multiple follicles, follicular volume, number of follicles, number CL, plasma P4 concentration, ovulation at G1, and P/AI. Multivariable logistic regression was used to assess the relationship of AMH with ovulation at G1, P/AI, and other variables associated with these responses. Also, receiver operating characteristics (ROC) were performed to assess whether AMH concentrations could predict ovulation at G1 and P/AI. Concentrations of AMH at days -10 and -3 were moderately correlated (r = 0.76). Multiparous cows had greater AMH concentration than primiparous cows. Cows in their 2nd and 3rd lactations had greater AMH concentrations than those in their 1st lactation. The AMH concentrations were weakly correlated with GDPR at G1 (r = 0.05) and PGF (r = 0.12). Cows were categorized according to GDPR, and there was a quadratic relationship between AMH concentration and GDPR quartile. The presence of multiple antral follicles was negatively associated with AMH concentration at the PGF, but not at G1. The number of follicles 10 mm tended to be associated with higher AMH concentration at both time points. Neither the size of the largest follicle nor the total follicular volume was associated with AMH at G1 and PGF. The presence of multiple CLs was not associated with AMH, and the total luteal volume was positively associated with high AMH concentrations at G1 and PGF. The AMH concentration was not associated with P4 concentration at G1 and PGF. The AMH concentration was greater in cows that ovulated than in cows that failed to ovulate, but AMH was not associated with ovulation and P/AI. The ROC analysis indicates that AMH concentrations could not predict ovulation at G1 or P/AI. For the inhibin A and B results, the concentration of inhibin A and inhibin B were moderately correlated between the two time points of the DO, the G1, and PGF (r = 0.64 and 0.73, respectively), while correlations between the two hormones at any time point remained low (r = 0.14 and 0.19, respectively). For luteal parameters, there were correlations only between Inhibin A and the largest CL at PGF (r = -0.11) and total volume at PGF (r = -0.11). In contrast, luteal parameters at G1 were not correlated with inhibin B had no correlations. For follicular parameters, there were no correlations for either Inhibin A or Inhibin B. For hormonal concentrations, there was a tendency for a correlation (r = -0.08) between P4 and Inhibin A at G1, but Inhibin A at PGF and P4 and Inhibin B at G1 and PGF were not correlated. When Inhibin concentrations were categorized, cows in the High Inhibin A group had a greater number of follicles than cows in the low Inhibin A group at G1. Moreover, cows in the High Inhibin A group had a smaller size for the largest CL than cows in the low Inhibin A group at G1. Greater inhibin A concentrations at PGF were observed in multiparous cows. For GDPR, there was only a tendency for a correlation between inhibin A and GDPR at PGF. When categorized, cows in the High Inhibin A at PGF had greater GDPR than cows in the Low Inhibin A group. In a multivariable regression model for ovulation, cows in the High Inhibin A and Medium Inhibin A groups at G1 ovulate more than cows in the Low Inhibin A group. In our univariate analysis, Inhibin B at G1 was greater in non-pregnant cows than in pregnant cows, but the multivariable logistic regression models showed that neither inhibin A nor B were associated with P/AI. The ROC analysis indicates that inhibin A and B concentrations could predict ovulation at G1 or P/AI. In conclusion, AMH concentration was positively associated with lactation number and had a weak, quadratic relationship with GDPR quartiles, but was not associated with ovulation at G1 or pregnancy per timed AI. Inhibin A and B were modestly associated with reproductive outcomes, but their predictive utility for ovulation and pregnancy per AI was limited.
일반주제명  
Animal sciences
일반주제명  
Endocrinology
일반주제명  
Physiology
키워드  
Fertility
키워드  
Ovarian dynamics
키워드  
Ovulatory response
키워드  
Reproductive performance
키워드  
Anti-Mullerian hormone
기타저자  
University of California, Davis Animal Biology
기본자료저록  
Dissertations Abstracts International. 87-04B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aSalman,  Saleh.
■24510▼aAssociation  of  Anti-Mullerian  Hormone,  Inhibin  A  and  B,  With  Genomic  Prediction  of  Daughter  Pregnancy  Rate,  Ovarian  Responses,  and  Pregnancy  Per  Artificial  Insemination  in  Lactating  Dairy  Cows
■260    ▼a[Sl]▼bUniversity  of  California,  Davis▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a102  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-04,  Section:  B.
■500    ▼aAdvisor:  Lima,  Fabio.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Davis,  2025.
■520    ▼aAnti-Mullerian  hormone  (AMH)  has  emerged  as  a  potential  biomarker  for  super-ovulatory  response  ovarian  reserve  and  reproductive  performance  in  dairy  cattle,  yet  its  association  with  fertility  traits  and  reproductive  outcomes  remains  unclear.  Moreover,  inhibin  A  and  B  are  gonadal  hormones  involved  in  the  regulation  of  FSH  and  folliculogenesis;  however,  their  association  with  reproductive  physiology  and  fertility  traits  in  dairy  cattle  remains  largely  unexplored.  Furthermore,  the  relationship  between  AMH  and  inhibin  A  &  B,  as  potential  biomarkers  for  reproductive  performance,  and  its  association  with  GDPR  has  yet  to  be  investigated.  The  objectives  of  this  study  were  to  evaluate  the  association  of  plasma  concentration  of  AMH  and  inhibin  A  and  B  at  the  first  gonadotropin-releasing  hormone  (G1)  and  prostaglandin  F2α  (PGF)  of  breeding  Ovsynch  of  a  Double-Ovsynch  (DO)  protocol  with  genomic  prediction  of  daughter  pregnancy  rate  (GDPR),  ovulation  at  G1,  and  pregnancy  per  artificial  insemination(P/AI).  Lactating  Holstein  cows  (n  =  519)  with  data  available  for  GDPR,  ovarian  dynamics  at  G1,  PGF,  and  P/AI  were  used  to  investigate  associations  of  AMH,  GDPR,  and  pregnancy  outcomes.  At  G1  and  PGF,  cows  had  their  ovaries  scanned  by  ultrasonography  for  characterization  of  ovarian  structures,  and  blood  samples  were  collected  for  assessment  of  AMH,  inhibin-A,  inhibin-B  and  progesterone  (P4)  concentrations.  Univariate  analyses  were  performed  to  explore  the  relationship  among  these  hormones  and  parity,  lactation  number,  body  condition  score  (BCS)  at  G1  and  PGF,  GDPR  at  G1  and  PGF,  presence  of  corpus  luteum  (CL)  14mm,  diameter  of  CL,  presence  of  multiple  CL,  total  luteal  volume,  presence  of  large  antral  follicles  10mm,  diameter  of  the  largest  follicle,  presence  of  multiple  follicles,  follicular  volume,  number  of  follicles,  number  CL,  plasma  P4  concentration,  ovulation  at  G1,  and  P/AI.  Multivariable  logistic  regression  was  used  to  assess  the  relationship  of  AMH  with  ovulation  at  G1,  P/AI,  and  other  variables  associated  with  these  responses.  Also, receiver  operating  characteristics  (ROC)  were  performed  to  assess  whether  AMH  concentrations  could  predict  ovulation  at  G1  and  P/AI.  Concentrations  of  AMH  at  days  -10  and  -3  were  moderately  correlated  (r  =  0.76).  Multiparous  cows  had  greater  AMH  concentration  than  primiparous  cows.  Cows  in  their  2nd  and  3rd  lactations  had  greater  AMH  concentrations  than  those  in  their  1st  lactation.  The  AMH  concentrations  were  weakly  correlated  with  GDPR  at  G1  (r  =  0.05)  and  PGF  (r  =  0.12).  Cows  were  categorized  according  to  GDPR,  and  there  was  a  quadratic  relationship  between  AMH  concentration  and  GDPR  quartile.  The  presence  of  multiple  antral  follicles  was  negatively  associated  with  AMH  concentration  at  the  PGF,  but  not  at  G1.  The  number  of  follicles    10  mm  tended  to  be  associated  with  higher  AMH  concentration  at  both  time  points.  Neither  the  size  of  the  largest  follicle  nor  the  total  follicular  volume  was  associated  with  AMH  at  G1  and  PGF.  The  presence  of  multiple  CLs  was  not  associated  with  AMH,  and  the  total  luteal  volume  was  positively  associated  with  high  AMH  concentrations  at  G1  and  PGF.  The  AMH  concentration  was  not  associated  with  P4  concentration  at  G1  and  PGF.  The  AMH  concentration  was  greater  in  cows  that  ovulated  than  in  cows  that  failed  to  ovulate,  but  AMH  was  not  associated  with  ovulation  and  P/AI.  The  ROC  analysis  indicates  that  AMH  concentrations  could  not  predict  ovulation  at  G1  or  P/AI.  For  the  inhibin  A  and  B  results,  the  concentration  of  inhibin  A  and  inhibin  B  were  moderately  correlated  between  the  two  time  points  of  the  DO,  the  G1,  and  PGF  (r  =  0.64  and  0.73,  respectively),  while  correlations  between  the  two  hormones  at  any  time  point  remained  low  (r  =  0.14  and  0.19,  respectively).  For  luteal  parameters,  there  were  correlations  only  between  Inhibin  A  and  the  largest  CL  at  PGF  (r  =  -0.11)  and  total  volume  at  PGF  (r  =  -0.11).  In  contrast,  luteal  parameters  at  G1  were  not  correlated  with  inhibin  B  had  no  correlations.  For  follicular  parameters,  there  were  no  correlations  for  either  Inhibin  A  or  Inhibin  B.  For  hormonal  concentrations,  there  was  a  tendency  for  a  correlation  (r  =  -0.08)  between  P4  and  Inhibin  A  at  G1, but  Inhibin  A  at  PGF  and  P4  and  Inhibin  B  at  G1  and  PGF  were  not  correlated.  When  Inhibin  concentrations  were  categorized,  cows  in  the  High  Inhibin  A  group  had  a  greater  number  of  follicles  than  cows  in  the  low  Inhibin  A  group  at  G1.  Moreover,  cows  in  the  High  Inhibin  A  group  had  a  smaller  size  for  the  largest  CL  than  cows  in  the  low  Inhibin  A  group  at  G1.  Greater  inhibin  A  concentrations  at  PGF  were  observed  in  multiparous  cows.  For  GDPR,  there  was  only  a  tendency  for  a  correlation  between  inhibin  A  and  GDPR  at  PGF.  When  categorized,  cows  in  the  High  Inhibin  A  at  PGF  had  greater  GDPR  than  cows  in  the  Low  Inhibin  A  group.  In  a  multivariable  regression  model  for  ovulation,  cows  in  the  High  Inhibin  A  and  Medium  Inhibin  A  groups  at  G1  ovulate  more  than  cows  in  the  Low  Inhibin  A  group.  In  our  univariate  analysis,  Inhibin  B  at  G1  was  greater  in  non-pregnant  cows  than  in  pregnant  cows,  but  the  multivariable  logistic  regression  models  showed  that  neither  inhibin  A  nor  B  were  associated  with  P/AI.  The  ROC  analysis  indicates  that  inhibin  A  and  B  concentrations  could  predict  ovulation  at  G1  or  P/AI.  In  conclusion,  AMH  concentration  was  positively  associated  with  lactation  number  and  had  a  weak,  quadratic  relationship  with  GDPR  quartiles,  but  was  not  associated  with  ovulation  at  G1  or  pregnancy  per  timed  AI.  Inhibin  A  and  B  were  modestly  associated  with  reproductive  outcomes,  but  their  predictive  utility  for  ovulation  and  pregnancy  per  AI  was  limited.
■590    ▼aSchool  code:  0029.
■650  4▼aAnimal  sciences
■650  4▼aEndocrinology
■650  4▼aPhysiology
■653    ▼aFertility
■653    ▼aOvarian  dynamics
■653    ▼aOvulatory  response
■653    ▼aReproductive  performance
■653    ▼aAnti-Mullerian  hormone
■690    ▼a0475
■690    ▼a0409
■690    ▼a0719
■71020▼aUniversity  of  California,  Davis▼bAnimal  Biology.
■7730  ▼tDissertations  Abstracts  International▼g87-04B.
■790    ▼a0029
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359630▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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