ジェニーの発情同期と卵胞発達パターン
Naerhulan Ayiken1, Yeertai Tuohudashen1, Younusi Huojiaabudula1
1College of Animal Science and Technology, Shihezi University, Shihezi 832003, China.
Journal of equine veterinary science
|February 7, 2026
まとめ
春季におけるCIDR+GnRH-PGF2αプロトコルは、ジェニーの発情同期を効果的に同期させ、受胎率を向上させた。卵胞発達における品種差が観察され、最適な繁殖効率のための人工授精時期に影響を与えた。
科学分野:
- 獣医学;生殖生物学;動物科学
背景:
- 季節変動と品種差はジェニーの繁殖効率に影響を与える。;中国品種のための最適化された発情同期プロトコルが不足している。
研究 の 目的:
- ジェニーの発情同期のための3つのホルモンプロトコルの比較。;デジョウおよび新疆ウイグル自治区のジェニーにおける季節を通じた卵胞発達の特性評価。
主な方法:
- 238頭のジェニーにGnRH-PGF2α（2つのタイミング）またはCIDR+GnRH-PGF2αを投与した。;発情、排卵、受胎率を記録した。;125頭のジェニーで超音波検査により卵胞動態を評価した。
主要な成果:
- CIDR+GnRH-PGF2αを4月～5月に実施したところ、発情率（85.0%）および受胎率（81.3%）が高かった。;生殖成績は7月～8月と比較して4月～5月の方が優れていた。;新疆ウイグル自治区のジェニーは卵胞の成長が速かった。;デジョウのジェニーは排卵前の卵胞が大きかった。
結論:
- 春季におけるCIDR+GnRH-PGF2αは、ジェニーの発情同期および受胎に最も効果的なプロトコルである。;品種特異的な卵胞発達パターンは、人工授精時期の情報を提供する。;排卵における卵巣の側性化は検出されなかった。
関連する概念動画
01:30Simplified Synchronous Machine Model
790
The Synchronous Machine Model is a fundamental tool in analyzing and ensuring the transient stability of power systems. This model simplifies the representation of a synchronous machine under balanced three-phase positive-sequence conditions, assuming constant excitation and ignoring losses and saturation. The model is pivotal for understanding the behavior of synchronous generators connected to a power grid, particularly during transient events.
In this model, each generator is connected to a...
In this model, each generator is connected to a...
790
01:06Fixed Action Patterns
17.7K
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
17.7K
01:26Patterns of Fever
3.9K
Before understanding the types and patterns of fever, it is essential to know its phases.
3.9K
01:21Three-Phase Short Circuit—Unloaded Synchronous Machine
718
Conducting a three-phase short circuit test on an unloaded synchronous machine helps understand its impact on the system. The AC fault current's oscillogram, with the DC offset removed, reveals that the waveform amplitude decreases from an initially high value to a steady-state level for one phase of the machine.
This behavior occurs due to the magnetic flux produced by the short-circuit armature currents. Initially, these currents follow high-reluctance paths but eventually shift to...
This behavior occurs due to the magnetic flux produced by the short-circuit armature currents. Initially, these currents follow high-reluctance paths but eventually shift to...
718
01:29Oxygen Requirements and Growth Patterns
1.5K
Microorganisms exhibit diverse oxygen requirements and growth patterns driven by their metabolic strategies and environmental adaptations. Oxygen, while essential for many organisms, can also be toxic under certain conditions, shaping how microorganisms grow and survive.Oxygen Requirements of MicroorganismsMicroorganisms are classified based on their ability to use or tolerate oxygen:● Obligate aerobes like Mycobacterium tuberculosis need oxygen for energy production, as it serves as the...
1.5K
01:43Sustainable Development
15.2K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
15.2K