7 Relationships between antral follicle count, serum concentration of anti-Müllerian hormone, and fertility in dairy cows

2022 ◽  
Vol 34 (2) ◽  
pp. 237
Author(s):  
D. Scarlet ◽  
L. Schwarzmann ◽  
R. Bruckmaier ◽  
H. Bollwein
Keyword(s):  
Serum Concentration ◽  
Dairy Cows ◽  
Antral Follicle ◽  
Antral Follicle Count

Evaluation of three-dimensional sonography for antral follicle count in cycling dairy cows

2018 ◽  
Vol 160 (12) ◽  
pp. 719-726
Author(s):  
A Schweizer ◽  
F Janett ◽  
H Bollwein
Keyword(s):  
Dairy Cows ◽  
Three Dimensional ◽  
Antral Follicle ◽  
Antral Follicle Count

scholarly journals Repeatability of antral follicle count according parity in dairy cows

2018 ◽  
Vol 64 (6) ◽  
pp. 535-539
Author(s):  
Keisuke KOYAMA ◽  
Takeshi KOYAMA ◽  
Masahito SUGIMOTO
Keyword(s):  
Dairy Cows ◽  
Antral Follicle ◽  
Antral Follicle Count

Reduced Antral Follicle Count in Dairy Cows of Reproductive Age Is Associated with a High Incidence of Aneuploidy and Alterations in the Localization of PGRMC1 and AURKB.

2012 ◽  
Vol 87 (Suppl_1) ◽  
pp. 298-298
Author(s):  
Federica Franciosi ◽  
Valentina Lodde ◽  
Irene Tessaro ◽  
Davide Corbani ◽  
Silvia C. Modina ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Antral Follicle ◽  
Antral Follicle Count ◽  
Reproductive Age ◽  
High Incidence

106 Effect of Heat-Stress on Antral Follicle Count and Serum Concentration of Anti-Mullerian Hormone in Bos taurus Crossbred Beef Cows

2018 ◽  
Vol 30 (1) ◽  
pp. 192
Author(s):  
F. A. Diaz ◽  
E. J. Gutierrez ◽  
B. A. Foster ◽  
P. T. Hardin ◽  
K. R. Bondioli
Keyword(s):  
Heat Stress ◽  
Serum Concentration ◽  
Cell Function ◽  
Bos Taurus ◽  
High Stress ◽  
Antral Follicle ◽  
Beef Cows ◽  
Antral Follicle Count ◽  
Selection Marker ◽  
Mild Stress

Anti-mullerian hormone (AMH) has become an important tool for the selection of donors with high antral follicle count and high superovulatory response for in vivo or in vitro embryo production programs. The serum concentration of AMH is becoming a suitable selection marker because it presents minimal variation during the oestrous cycle and is repeatable during multiple cycles. It is known that heat stress results in decreased production of reproductive steroid and protein hormones in stressed animals. Importantly, the effect of heat stress on the serum concentration of AMH is still unknown. The objective of this experiment was to evaluate the antral follicle count and AMH serum concentration levels during the spring to summer transition to assess the effect of heat stress in these parameters. Ten Bos taurus crossbred non-lactating beef cows (body condition 4–8 on 9-pt scale; mean = 6.7) were used in the experiment. Dominant follicle removal was performed 5 days before sample collection and antral follicle count. Blood was collected through caudal tail venipuncture in serum collection tubes. Antral follicle count was performed through trans-vaginal ultrasound imaging of ovaries where follicles ≥2 to 3 mm were counted. Serum AMH concentration was measured utilising the Bovine AMH ELISA kit AL-114. Blood sampling and antral follicle count was performed at midmonth during April, May, June, and July. Serum AMH and antral follicle count was analysed by ANOVA. Days with average temperature-humidity index (THI) >75 (mild stress) per month were 0/30, 6/31, 26/30, and 31/31 for April, May, June, and July, respectively. Days with average THI >79 (high stress) per month were 0/30, 0/31, 6/30, and 14/31 for April, May, June, and July, respectively. The total antral follicle count for both ovaries (mean ± SE) was 36.1 ± 4.20, 48.1 ± 7.19, 34.2 ± 4.19, and 46.5 ± 5.85 for April, May, June, and July, respectively. There was no difference (P = 0.1936) in antral follicle count between months. Serum AMH concentration (ng mL−1) was 0.554 ± 0.14, 0.857 ± 0.21, 0.513 ± 0.12, and 0.575 ± 0.13 for April, May, June, and July, respectively. There was no difference (P = 0.3851) in AMH serum concentration between months. The concentration of AMH/follicle (AMH serum concentration/antral follicle count; ng mL−1) was 0.0150 ± 0.0028, 0.0166 ± 0.0018, 0.0152 ± 0.0036, and 0.0123 ± 0.0025 for April, May, June, and July, respectively. There was no difference (P = 0.7385) in the concentration of AMH/follicle between months. Results of the experiment showed that heat stress does not affect antral follicle count, AMH serum concentration, or concentration of AMH/follicle and suggest that granulosa cell function in terms of AMH production is not affected by heat stress during the spring to summer transition.

1057 The association between Anti-Mullerian Hormone concentrations, antral follicle count and fertility measures in dairy cows

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 506-507
Author(s):  
M. Gobikrushanth ◽  
P. A. Dutra ◽  
C. A. Felton ◽  
A. Ruiz-Sanchez ◽  
T. C. Bruinjé ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Antral Follicle ◽  
Antral Follicle Count

scholarly journals Relationships between antral follicle count, blood serum concentration of anti-Müllerian hormone and fertility in mares

2019 ◽  
Vol 161 (10) ◽  
pp. 627-638
Author(s):  
J Traversari ◽  
H Aepli ◽  
B Knutti ◽  
J Lüttgenau ◽  
R M Bruckmaier ◽  
...  
Keyword(s):  
Serum Concentration ◽  
Blood Serum ◽  
Antral Follicle ◽  
Antral Follicle Count

Association between antral follicle count and reproductive measures in New Zealand lactating dairy cows maintained in a pasture-based production system

2016 ◽  
Vol 85 (3) ◽  
pp. 466-475 ◽  
Author(s):  
Marcelo F. Martinez ◽  
Neil Sanderson ◽  
Laurel D. Quirke ◽  
Stephen B. Lawrence ◽  
Jennifer L. Juengel
Keyword(s):  
New Zealand ◽  
Dairy Cows ◽  
Production System ◽  
Antral Follicle ◽  
Antral Follicle Count ◽  
Lactating Dairy Cows

scholarly journals PHYSIOLOGY AND ENDOCRINOLOGY SYMPOSIUM: Anti-Müllerian hormone: a biomarker for the ovarian reserve, ovarian function, and fertility in dairy cows

2019 ◽  
Vol 97 (4) ◽  
pp. 1446-1455 ◽  
Author(s):  
Francesca Mossa ◽  
James J Ireland
Keyword(s):  
Dairy Cows ◽  
Ovarian Reserve ◽  
Maternal Nutrition ◽  
Ovarian Function ◽  
Bos Taurus ◽  
Antral Follicle ◽  
Antral Follicle Count ◽  
Dairy Heifers ◽  
Follicular Waves ◽  
Heritable Trait

Abstract This review summarizes studies we conducted to test the hypothesis that size of the ovarian reserve (number of healthy follicles and oocytes in ovaries) positively impacts ovarian function and fertility in cattle. Key results, primarily in Bos taurus dairy cattle, show that antral follicle count (AFC) during follicular waves is highly variable between individuals, but very highly repeatable within individuals. Cycling heifers with low (≤15 follicles ≥3 mm, ~20% of a herd) vs. a high AFC (≥25, ~20% of a herd) have a smaller ovarian reserve, higher FSH but lower anti-Müllerian hormone (AMH), androstenedione, estradiol, and progesterone concentrations. Moreover, cattle with low AFC have a thinner endometrium, decreased response of granulosal, thecal, or luteal cells to FSH or LH and a poorer response to superovulation compared to cattle with high AFC. Interestingly, cows with a very high AFC as heifers have reduced fertility, fewer lactations, and shorter herd longevity, whereas cows with a low vs. intermediate AFC have reduced fertility, fewer lactations, and shorter herd longevity. Anti-Müllerian hormone concentrations are static within individuals but highly positively correlated with AFC, but fertility is not correlated with circulating AMH concentration in heifers and dairy cows with low vs. a higher AMH as heifers have reduced fertility and a shorter herd longevity. Anti-Müllerian hormone concentrations in dairy heifers are a moderately heritable trait (36%), and negatively impacted by inadequate maternal nutrition during early pregnancy or high maternal somatic cell count. We conclude that genetic or environmental manipulations of AMH could enhance size of the ovarian reserve and ovarian function, thereby improving fertility, response to superovulation, and longevity in dairy cows.

Should fertile women quit drinking alcohol to produce better quality oocytes?

Zygote ◽  
2020 ◽  
pp. 1-3
Author(s):  
Burcu Ozbakir ◽  
Pinar Tulay
Keyword(s):  
Alcohol Consumption ◽  
Young Women ◽  
Antral Follicle ◽  
Antral Follicle Count ◽  
Control Group ◽  
Social Drinkers ◽  
Antral Follicles ◽  
Healthy Women ◽  
Significant Difference

Summary Alcohol consumption has long been shown to affect both fetal health and pregnancy. In this study, antral follicle count, maturation level of oocytes including morphological assessment and number of metaphase I (MI), metaphase II (MII) and germinal vesicle (GV) stage oocytes obtained from young women (age < 30 years old) with or without alcohol consumption were investigated. In total, 20 healthy women who were social drinkers and 36 healthy women who do not consume alcohol were involved in this study. Women in both study and control groups were undergoing controlled ovarian stimulation. The antral follicle count and the number and quality of the oocytes retrieved were evaluated and recorded. In total, 635 antral follicles, 1098 follicles and 1014 oocytes with 820 MII, 72 MI and 78 GV stage oocytes were collected from the social drinkers. In the control group, 628 antral follicles, 1136 follicles and 1085 oocytes with 838 MII, 93 MI and 102 GV stage oocytes were evaluated. The results of this study showed that the antral follicle count was very similar in both groups. The number of oocytes and MII stage oocytes was slightly higher in the control group, although it was not a significant difference. This study showed that although the consumption of alcohol may have adverse effects post-implantation, it may not have a solid effect during oogenesis in young women. The results of this study are especially important in clinical settings as some women who are social drinkers undergo in vitro fertilization treatments.

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