Accurately predicting parturition in cows can be difficult because of the variability in gestation length and uncertainty of the time of parturition. The goal of the present study was to determine the electrolyte concentrations of prepartum mammary secretions of gravid cows and to investigate retrospectively the possible predictive relationships between these concentrations and the time of part...

Clinical examination and emergency care in newborn puppies is difficult, due to their different physiological characteristics and needs from those of adult dogs. This paper reviews the physiological events during parturition and the influence of parturition on puppy health.

The levels of four pregnanolone isomers and their polar conjugates and pregnenolone sulfate were measured in the plasma of 13 and 7 women at delivery with subarachnoidal and epidural analgesia, respectively, and in corresponding samples of umbilical plasma using a simple quadrupole GC/MS system with electron impact ionization (pregnenolone isomers), RIA following HPLC separation (pregnenolone) ...

Given the influence of retentio secundinarum (RS) on reproductive performance cows, current work aimed to assess effect various approaches treatment retained placenta main parameters, primarily interval from parturition first service, and insemination index. The trial involved 120 dairy cows in which was not expelled within 24 h postpartum. group (G1, n=60) contained extirpated, but they were a...

To study the temporal relationship between changes in hormone levels with the development of myometrial gap junctions, rats were sacrificed to collect uterine vein blood and uterine tissues daily from Day 15 to Day 20 of pregnancy, every 3 h on Day 21, during delivery, and 3 h after parturition. Levels of progesterone, estradiol and prostaglandin F2 alpha (PGF2 alpha) were measured by specific ...

OBJECTIVES The "dysregulated parturition" narrative posits that the human stress response includes a cascade of hormones that "dysregulates" and accelerates parturition but provides questionable utility as a guide to understand or prevent preterm birth. We offer and test a "strategic parturition" narrative that not only predicts the excess preterm births that dysregulated parturition predicts b...

The process of parturition involves the complex interplay of factors that change the excitability and contractile activity of the uterus. We have compared the relative gene expression profile of myometrium from rats before parturition (21 days pregnant) and during delivery, using high-density DNA microarray. Of 8,740 sequences available in the array, a total of 3,782 were detected as present. F...

the aim of the present study was to determine the effect of dietary supplementation of pioglitazone (pgt) during transition period on the ovarian function and the incidence of several diseases after parturition. eighty holstein cows were randomly allocatted to four treatment groups (n=20) using a 2×2 factorial design.  pioglitazone was fed for 14 day before the expected parturition time, or for...

background: the lori-bakhtiari sheep breed is one of the most common native breed in the south-western parts of iran. the peri-parturition period (2 weeks before to, 2 weeks after parturition), is generally of critical importance regarding the health, production and profitability of the ewes. objectives: this study was carried out to compare the serum concentrations of glucose, non-esterified f...