Uterine Involution, Follicle Development and Concentrations of Plasma Progesterone, 20α-OH-Progesterone and Total Estrogen Levels During the Postpartum Period in Anatolian Donkeys

Author(s):  
Hakan KALENDER ◽  
Selim ASLAN ◽  
Franz SCHWARZENBERGER ◽  
Nil ERÜNAL MARAL ◽  
Hakkı İZGÜR ◽  
...  
1979 ◽  
Vol 59 (3) ◽  
pp. 481-490 ◽  
Author(s):  
P. MATTON ◽  
V. ADELAKOUN ◽  
J. J. DUFOUR

Plasma steroids (cortisol, progesterone, estrone and estradiol) were studied during the peripartum period in cows with three different types of parturition: unifoetal normal (VUN), unifoetal with retained placenta (VRP), multifoetal with or without retained placenta (VG). In the control group, cortisol rose gradually from 8 ng/ml on day −7 to 11 ng/ml on the day of parturition and thereafter came back to the level of day −7. In the VRP group, cortisol was slightly lower than in the control on day −7 and it did not vary significantly before or after parturition. In the group of cows with multiple births, where retained placenta was encountered in 3/4 cases, cortisol was much higher than in control animals. Plasma progesterone decreased gradually from 5.5 ng/ml to less than 1 ng/ml on the day of parturition in the control group. In the group VRP and VG, it was significantly higher than in the control on the 2 days before and on the day of parturition. The patterns of estrone and estradiol were similar in the groups VUN and VRP until the first day following parturition, but much higher in the cows giving birth to twins. During the postpartum period, the drop in estrogens was much slower in the VRP and VG groups than in the VUN control group. These results suggest that retention of the placenta is not linked with the plasma concentration of cortisol but rather associated with an increased level of progesterone on the day of parturition and that the slower decrease in estrogen levels after parturition would be the result of the persisting attachment of the foetal membranes.


2021 ◽  
Vol 38 (3) ◽  
pp. 245
Author(s):  
Juli Melia ◽  
Ayu Wannisa ◽  
Tongku Nizwan Siregar ◽  
Hafizuddin Hafizuddin ◽  
Budianto Panjaitan ◽  
...  

The aim of this study was to observe the uterine involution of Etawa crossbreed (PE) goat using transcutaneous ultrasonography (USG). This study used four postpartum female goats that released placenta normally. The goats were examined on lateral recumbence position. Uterine involution was observed daily. The study began from the first day of postpartum period until there were no more reduction of uterine horns lumen diameter. From the 1st to 7th day of postpartum period, ultrasound imaging of the uterine wall showed caruncle which was hypoechoic, lumen of uterine filled with lochia (the image was hypoechoic to anechoic) and a clearly visible uterine horns lumen which had decreased in diameter from 105.9 ± 0.9 mm to 87.2 ± 4.6 mm. From the 8th day to the 14th day, lumen diameter had decreased from 80.4 ± 3.8 mm to 63.6 ± 3.2 mm. The presence of caruncle was reduced and the amount of lochia was decreased (anechoic). From the 15th day to the 21st day, lumen diameter had decreased from 61.4 ± 2.1 mm to 52.1 ± 2.7 mm, and the remnants of caruncle and lochia were still visible. From the 22nd day to the 26th day, the diameter of the uterine wall had decreased from 49.7 ± 0.6 mm to 41.5 ± 6.7 mm, and the lochia and caruncle were no longer visible. From the 26th to the 30th day, uterine horns lumen diameter had still decreased from 41.5 ± 6.7 mm to 31.7 ± 0.9 mm. Uterine horns lumen diameter size had decreased every day, stabilized on the 30th day, and ceased to decrease on the 31st day, where the diameter size was the same as on the 30th day postpartum (31.7 ± 0.9 mm). It can be concluded that the duration of uterine involution in PE goats, which had normal delivery is 30-31 days.


2015 ◽  
Vol 27 (1) ◽  
pp. 178
Author(s):  
K. M. Lemes ◽  
L. A. Silva ◽  
E. C. C. Celeghini ◽  
M. A. Alonso ◽  
G. Pugliesi ◽  
...  

The postpartum period is characterised by the rapid uterine involution process and return of ovarian activity (foal heat), resulting in a fertile oestrus in most of the mares. However, the follicular development and selection processes during this period are not completely known in horses. We aimed to study the characteristics of follicular growth and vascular perfusion in the ovary during the early postpartum period in mares that demonstrated oestrous behaviour and had early (<10 days) or late (≥10 days) ovulation. Ten mares were scanned daily from the first day postpartum (Day 1) until the day of the first postpartum ovulation (Day 0). The animals were split in the early (n = 3) and late (n = 7) ovulation groups (averaged interval between parturition and ovulation: 8.0 ± 0.0 and 14.7 ± 1.2 days, respectively). For ultrasound exams a Duplex B-mode and colour Doppler instrument (M5VET®, Mindray, Shenzhen, China) was used with a multifrequency linear probe. Data were analysed for the main effects of group, day, and their interaction using the PROC MIXED procedure of SAS software (version 9.3, SAS Institute Inc., Cary, NC, USA). For the follicular growth, no difference (P > 0.05) was detected between the groups when the data were analysed for the days relative to ovulation (from Day 7 to Day 1). However, the dominant follicle was larger (P < 0.05) in the early-ovulated group (37.2 ± 1.6 v. 21.9 ± 1.1) in all days during early postpartum (Day 1 to Day 7). The number of follicles with >25 mm diameter was also greater (P < 0.05) in the early-ovulated group (1.1 ± 0.1 v. 0.1 ± 0.1) during the first 3 days postpartum. In addition, the late-ovulated mares showed greater number of follicles with 20–25 mm during Day 4 to Day 7 (2.0 ± 0.2 v. 0.7 ± 0.1). For the blood flow characteristics, no difference (P > 0.05) was detected in the coloured signals of blood flows in the follicular wall of the dominant follicle or in the ovarian pedicle ipsilateral to the largest follicle. Therefore, the characteristics of the follicle growth on the preceding days of ovulation were similar between the early- and late-ovulated mares and consistent with the follicular dynamics expected in non-pregnant and non-lactating mares. However, when the data were analysed for the days relative to parturition, a greater follicle development was present in mares that ovulate earlier during the postpartum period (<10 days). In conclusion, the results suggest that important events may occur previous to the parturition, resulting in an early follicle development, mainly in those mares that show heat signs and ovulate within 10 days postpartum. Research was supported by FAPESP process number 2010/10692-9 and CNPq process number 135954/2011-8.


2019 ◽  
Vol 81 (3) ◽  
pp. 491-498 ◽  
Author(s):  
Cyril P. STEPHEN ◽  
Walter H. JOHNSON ◽  
Stephen J. LEBLANC ◽  
Robert A. FOSTER ◽  
Tracey S. CHENIER

2016 ◽  
Vol 3_2016 ◽  
pp. 43-48
Author(s):  
Karimova G.N. Karimova ◽  
Eremina O.V. Eremina ◽  
Ogai O.Yu. Ogai ◽  
Boikova Yu.V. Boikova ◽  
Gus A.I. Gus A ◽  
...  

2015 ◽  
Vol 13 ◽  
Author(s):  
José Carlos Dos Santos Breda ◽  
Luiz Ernandes Kozicki

The study of ovarian follicular dynamics (OFD) and other changes in the bovine reproductive tract has developedsignificantly over the past two decades, primarily due to the use of non-invasive investigative approaches suchas ultrasound. Advances in ultrasound examinations have provided a better understanding of ovarian activity,uterine involution, oviducts status, and other segments of the reproductive tract in the bovine postpartumperiod. Procedures including tracking of the reproductive tract have likewise aided in the development of newmethodologies and techniques to improve reproductive performance in cattle. The aim of this review was tosummarize knowledge regarding the reproductive tract in dairy cows during the postpartum period.


Author(s):  
Juliana Kristoschek ◽  
Renato Moreira de Sá ◽  
Fernanda Silva ◽  
Guillermo Vellarde

Purpose Our aim was to describe the changes observed by ultrasonography in uterine dimensions during the early puerperium among women who experienced an uncomplicated puerperium. Additionally, the influence of parity, mode of delivery, breastfeeding and birth weight on uterine involution was evaluated. Methods Ninety-one patients underwent an ultrasound examination on days 1 (D1), 2 (D2) and 7 (D7) of the postpartum period. The longitudinal, anteroposterior and transverse uterine diameters were measured, and the uterine volume was calculated by the formula: longitudinal diameter (LD) X anteroposterior diameter (APD) X transverse diameter (TD) X 0.45. The thickness and length of the uterine cavity were also measured. Results The uterine volume and the LD, APD and TD decreased by 44.8%, 20.9%, 11.8% and 20.0% respectively. The uterine cavity thickness was reduced by 23%, and the length of the cavity was reduced by 27.2% on D7. Uterine involution was correlated inversely with parity when the day of the postpartum period was not taken into account (p = 0.01). However, when the uterine involution was correlated to parity separately, with D1, D2 or D3, no correlations were found. A significant difference occurred at D2, when it was found that the uterus had a smaller volume following cesarean section compared with vaginal delivery (p = 0.04). The high birth weight and breastfeeding were significantly related to uterine involution (p ≤ 0.01 and p = 0.04). Conclusion The sonographic evaluation of the uterus in the early puerperium should consider birth weight, breastfeeding and parity, as well as the delivery route on D2, to identify abnormalities related to uterine involution.


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