Effect of exogenous administration of oxytocin on postpartum follicular dynamics, estrus rate and ovulation in Nili‐Ravi buffaloes

2021 ◽  
Author(s):  
Saeed Murtaza ◽  
Abdul Sattar ◽  
Nasim Ahmad ◽  
Muhammad Jamil Ahmad ◽  
Saleem Akhtar ◽  
...  
Keyword(s):  
Follicular Dynamics

Ovarian Follicular Dynamics of five-eighths Girolando Cows

2001 ◽  
Vol 36 (3-4) ◽  
pp. 207-210 ◽  
Author(s):  
AS Santos Filho ◽  
MAL Oliveira ◽  
JGL Caldas ◽  
PF Lima ◽  
IV Donato
Keyword(s):  
Follicular Dynamics

Progestin regulation of follicular dynamics in beef cattle

2009 ◽  
Author(s):  
Mallory Elise Risley
Keyword(s):  
Beef Cattle ◽  
Follicular Dynamics

Gestational exposure to Δ9-THC impacts ovarian follicular dynamics and angiogenesis in adulthood in Wistar rats

2021 ◽  
pp. 1-5
Author(s):  
Annia A. Martínez-Peña ◽  
Kendrick Lee ◽  
James J. Petrik ◽  
Daniel B. Hardy ◽  
Alison C. Holloway
Keyword(s):  
Reproductive Health ◽  
Cannabis Sativa ◽  
Follicular Development ◽  
Angiogenic Factor ◽  
Postnatal Life ◽  
Adult Rat ◽  
Female Reproductive Health ◽  
Gestational Exposure ◽  
Follicular Dynamics

Abstract With the legalization of marijuana (Cannabis sativa) and increasing use during pregnancy, it is important to understand its impact on exposed offspring. Specifically, the effects of Δ-9-tetrahydrocannabinol (Δ9-THC), the major psychoactive component of cannabis, on fetal ovarian development and long-term reproductive health are not fully understood. The aim of this study was to assess the effect of prenatal exposure to Δ9-THC on ovarian health in adult rat offspring. At 6 months of age, Δ9-THC-exposed offspring had accelerated folliculogenesis with apparent follicular development arrest, but no persistent effects on circulating steroid levels. Ovaries from Δ9-THC-exposed offspring had reduced blood vessel density in association with decreased expression of the pro-angiogenic factor VEGF and its receptor VEGFR-2, as well as an increase in the anti-angiogenic factor thrombospondin 1 (TSP-1). Collectively, these data suggest that exposure to Δ9-THC during pregnancy alters follicular dynamics during postnatal life, which may have long-lasting detrimental effects on female reproductive health.

scholarly journals The use of a ‘first-wave’ model to study the effect of nutrition on ovarian follicular dynamics and ovulation rate in the sheep

Reproduction ◽  
2010 ◽  
Vol 140 (6) ◽  
pp. 865-874 ◽  
Author(s):  
C Viñoles ◽  
B Paganoni ◽  
K M M Glover ◽  
J T B Milton ◽  
D Blache ◽  
...  
Keyword(s):  
Body Condition ◽  
Wave Model ◽  
Ovulation Rate ◽  
Short Term ◽  
Metabolic Hormones ◽  
Follicular Waves ◽  
Follicular Wave ◽  
The Third ◽  
High Concentrations ◽  
Follicular Dynamics

We have developed an experimental model in which groups of ewes are simultaneously experiencing the first ovarian follicular wave of their oestrous cycle. We used this ‘first-wave model’ in a 2×2 factorial experiment (ten ewes per group) to study the effect of body condition (BC) and a short-term supplement on follicular dynamics and ovulation rate. The ‘first-wave’ was established by giving ewes three injections of prostaglandin (PG), 7 days apart. The 6-day supplement (lupin grain) began 2 days after the second PG injection and continued until the third. Follicles were studied by ultrasound, and blood was sampled to measure glucose and hormones. The supplement increased (P<0.01) the concentrations of glucose, insulin and leptin, decreased FSH concentrations (P<0.01) and tended to increase oestradiol concentrations (P=0.06). The supplement tended to increase the number of 3 mm follicles (P=0.06). Compared with low-BC ewes, high-BC ewes had more follicular waves (P<0.05), higher concentrations of insulin, leptin and IGF1 (P<0.05) and tended to have higher FSH concentrations (P=0.09). Leptin and insulin concentrations remained high until the end of supplementation in high-BC ewes, whereas they decreased after the third day of supplementation in low-BC ewes. In conclusion, high concentrations of metabolic hormones in fat ewes are associated with the development of more follicular waves. When a supplement is superimposed on this situation, changes in glucose and metabolic hormones allow more follicles to be selected to ovulate.

scholarly journals Follicular Dynamics and Corpus Luteum Growth and Function in Pregnant Versus Nonpregnant Dairy Cows

1991 ◽  
Vol 74 (1) ◽  
pp. 115-123 ◽  
Author(s):  
C. Taylor ◽  
R. Rajamahendran
Keyword(s):  
Dairy Cows ◽  
Corpus Luteum ◽  
And Function ◽  
Follicular Dynamics

Neonatal exposure to bisphenol A or diethylstilbestrol alters the ovarian follicular dynamics in the lamb

2011 ◽  
Vol 32 (3) ◽  
pp. 304-312 ◽  
Author(s):  
Oscar E. Rivera ◽  
Jorgelina Varayoud ◽  
Horacio A. Rodríguez ◽  
Mónica Muñoz-de-Toro ◽  
Enrique H. Luque
Keyword(s):  
Bisphenol A ◽  
Neonatal Exposure ◽  
Follicular Dynamics

Ovarian follicular dynamics and plasma steroid concentrations are not significantly different in ewes given intravaginal sponges containing either 20 or 40mg of fluorogestone acetate

2009 ◽  
Vol 71 (4) ◽  
pp. 676-682 ◽  
Author(s):  
C.A. Letelier ◽  
I. Contreras-Solis ◽  
R.A. García-Fernández ◽  
C. Ariznavarreta ◽  
J.A.F. Tresguerres ◽  
...  
Keyword(s):  
Follicular Dynamics

Follicular dynamics and plasma FSH and progesterone concentrations during follicular deviation in the first post-ovulatory wave in Nelore (Bos indicus) heifers

2007 ◽  
Vol 98 (3-4) ◽  
pp. 189-196 ◽  
Author(s):  
Caliê Castilho ◽  
Joaquim M. Garcia ◽  
Andrea Renesto ◽  
Guilherme P. Nogueira ◽  
Leonardo F.C. Brito
Keyword(s):  
Bos Indicus ◽  
Follicular Dynamics

scholarly journals Effect of Dietary Energy and Protein on Bovine Follicular Dynamics and Embryo Production In Vitro: Associations with the Ovarian Insulin-Like Growth Factor System1

2001 ◽  
Vol 64 (6) ◽  
pp. 1624-1632 ◽  
Author(s):  
D.G. Armstrong ◽  
T.G. McEvoy ◽  
G. Baxter ◽  
J.J. Robinson ◽  
C.O. Hogg ◽  
...  
Keyword(s):  
Growth Factor ◽  
Dietary Energy ◽  
Insulin Like Growth Factor ◽  
Embryo Production ◽  
Follicular Dynamics

Effects of long-term treatment with bovine somatotropin on follicular dynamics and subsequent oocyte and blastocyst yield in an opu-ivf program

1998 ◽  
Vol 49 (5) ◽  
pp. 983-995 ◽  
Author(s):  
P.E.J Bols ◽  
M.T Ysebaert ◽  
A Lein ◽  
M Coryn ◽  
A Van Soom ◽  
...  
Keyword(s):  
Term Treatment ◽  
Bovine Somatotropin ◽  
Long Term Treatment ◽  
Follicular Dynamics
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