相关实验视频

Updated: Jun 3, 2025

Bovine Ovarian Cortex Tissue Culture
06:32

Bovine Ovarian Cortex Tissue Culture

Published on: January 14, 2021

4.6K

活动监测设备数据与卵巢,子宫,荷尔蒙和妊娠变量之间的关系在牛肉奶牛中

Cecilia Constantino Rocha1, Ana Beatriz Montevecchio2, Alexandra Bennett3

  • 1Department of Animal Sciences, University of Florida, Gainesville, FL, USA; Division of Animal Sciences, Southwest Research, Extension, and Education Center, University of Missouri, Mt Vernon, Missouri, USA.

Theriogenology
|January 10, 2025
PubMed
概括

加速度计算法在检测肉牛的雌性行为时,与视觉雌性斑点观测相比,显示精度较低. 在这项研究中,雌激素强度测量不能准确预测怀孕结果.

关键词:
加速度计的速度计.人工智能的人工智能是人工智能.胚胎转移是胚胎的转移.雌激素 雌激素 是一种

更多相关视频

In Vitro Culture Strategy for Oocytes from Early Antral Follicle in Cattle09:30

In Vitro Culture Strategy for Oocytes from Early Antral Follicle in Cattle

Published on: July 8, 2020

8.6K
Methods for Studying Uterine Contributions to Pregnancy Establishment in an Ovariectomized Mouse Model06:49

Methods for Studying Uterine Contributions to Pregnancy Establishment in an Ovariectomized Mouse Model

Published on: April 7, 2023

1.6K

相关概念视频

Hormonal Regulation of the Menstrual Cycle01:22

Hormonal Regulation of the Menstrual Cycle

The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
283
Hormonal Control of the Ovarian Cycle01:30

Hormonal Control of the Ovarian Cycle

The ovarian cycle is meticulously regulated by the hypothalamic-pituitary-gonadal axis. This cycle orchestrates the release of a mature oocyte, essential for reproduction.
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle.  At puberty, GnRH secretion increases in both frequency and...
404
Ovarian Cycle01:27

Ovarian Cycle

The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle...
982
Internal Receptors01:31

Internal Receptors

Many cellular signals are hydrophilic and therefore cannot pass through the plasma membrane. However, small or hydrophobic signaling molecules can cross the hydrophobic core of the plasma membrane and bind to internal, or intracellular, receptors that reside within the cell. Many mammalian steroid hormones use this mechanism of cell signaling, as does nitric oxide (NO) gas.
69.4K
Oogenesis02:07

Oogenesis

In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
63.4K