oestrus

简明释义

英[ˈiːstrəs]美[ˈestrəs]

n. 发情，发情期；牛虻

英英释义

单词用法

同义词

反义词

例句

1.Effects of hormone dosage, interval time of hormone injection, oestrus period, season and temperature influenced on mouse superovulation were studied in this experiment.

分析了激素剂量、激素注射间隔时间、发情周期、季节和温度对小鼠超排效果的影响。

2.Effects of hormone dosage, interval time of hormone injection, oestrus period, season and temperature influenced on mouse superovulation were studied in this experiment.

分析了激素剂量、激素注射间隔时间、发情周期、季节和温度对小鼠超排效果的影响。

3.Using female mice in research is complicated by the females' oestrus cycle - it impacts on neuro-physiological parameters, including behaviour and perception of stress.

由于雌性小鼠的发情周期，用雌性小鼠进行的研究很复杂——它影响神经生理参数，包括应激的行为和知觉。

4.Large Numbers of practical productions have proved that the success rate of oestrus season for sheep embryo transfer was obviously higher than the non-oestrus season.

大量的生产实践证明繁殖季节绵羊胚胎移植成功率明显高于非繁殖季节。

5.The donor and acceptor mice were treated to oestrus synchronization or superovulation at the same time and the fertilized ova were collected for microinjection.

经显微注射后的受精卵适当培养，选择优质胚胎进行受体小鼠的输卵管移植；

6.During oestrus or direct contact, panda show their likes or dislikes, their intimate through different frequencies of clicks, howls, roars, and baas.

在发情期或直接接触时，大熊猫通过发出不同频率的吱吱叫、嗥叫、吼叫、咩叫声等，表达厌恶、亲近、喜欢等各种情感。

7.The animal has arrived at oestrus, has been also block of wood eating and drinking frequently, showing such as being to fidgeting.

动物到了发情期，也是经常不吃不喝，表现得是烦躁不安。

8.Also disclosed is a method of detecting the reproductive status, in particular the oestrus cycle, of a mammal.

并且公开了一种用于检测哺乳动物的生殖状况，特别是发情周期的方法。

9.When gilts or sows enter oestrus in their reproductive cycles (about 21 days long) they are ready to be bred.

小母猪和大母猪的发情期大概是21天，这是她们的生理循环周期，准备繁殖阶段。

10.Effects of different nutrition levels on oestrus time of over-early weaning ewes;

实验模拟了不同风浪强度、不同营养水平下铜绿微囊藻的生长速率。

11.During the mating season, female animals often exhibit signs of oestrus.

在交配季节，雌性动物通常会表现出发情期的迹象。

12.Veterinarians monitor the oestrus cycle to determine the best time for breeding.

兽医监测发情周期以确定最佳繁殖时间。

13.The duration of oestrus can vary significantly among different species.

不同物种之间的发情期持续时间可能差异显著。

14.Some dogs may become aggressive during their oestrus phase.

一些狗在它们的发情期期间可能会变得有攻击性。

15.Farmers often track the oestrus cycles of their livestock for breeding purposes.

农民通常会跟踪他们家畜的发情周期以便繁殖。

作文

The term oestrus refers to a specific phase in the reproductive cycle of female mammals, particularly among species that exhibit estrous cycles. This period is characterized by heightened sexual receptivity and fertility. During oestrus (发情期), females are often more active in seeking out mates, signaling their readiness for mating through various behaviors and physiological changes. Understanding oestrus is crucial not only for biologists studying animal behavior but also for those involved in animal husbandry and conservation efforts. In many species, the oestrus cycle is influenced by environmental factors such as daylight, temperature, and the availability of food. For example, in some deer species, the onset of oestrus is closely tied to the changing seasons, ensuring that mating occurs when conditions are most favorable for raising offspring. This synchronization with environmental cues helps to maximize the chances of survival for the young. The physiological changes that occur during oestrus include alterations in hormone levels, particularly estrogen. These hormonal shifts lead to changes in the female's reproductive organs, making them more receptive to mating. In many cases, females will exhibit behavioral signs of oestrus, such as vocalizations, increased movement, and even changes in grooming habits. These behaviors serve to attract males and signal their availability. In domestic animals, understanding the timing of oestrus is vital for breeders. For instance, knowing when a female dog or cat is in oestrus can help owners make informed decisions about breeding. This knowledge can also prevent unwanted litters, as many pet owners choose to spay or neuter their animals to avoid the challenges associated with breeding. Moreover, the study of oestrus extends beyond just domestic animals; it plays a significant role in wildlife management and conservation. Many endangered species have specific breeding seasons, and understanding their oestrus cycles can aid in developing effective conservation strategies. By ensuring that breeding programs align with natural reproductive cycles, conservationists can increase the chances of successful breeding and population recovery. The concept of oestrus also has implications in medical research. Scientists study the reproductive cycles of various mammals to understand human reproductive health better. Insights gained from the study of oestrus in other species can lead to advancements in reproductive technologies and treatments for infertility. In conclusion, the term oestrus encapsulates a critical aspect of reproductive biology in female mammals. From influencing mating behaviors to informing breeding practices in domestic animals and aiding conservation efforts, the significance of oestrus cannot be understated. As we continue to explore the complexities of animal reproduction, the understanding of oestrus will remain a cornerstone of biological and ecological research.

术语oestrus指的是雌性哺乳动物生殖周期中的特定阶段，特别是在表现出发情周期的物种中。这个时期的特点是性欲和生育能力的增强。在oestrus（发情期）期间，雌性动物通常更积极地寻找伴侣，通过各种行为和生理变化来发出它们交配准备好的信号。理解oestrus不仅对研究动物行为的生物学家至关重要，也对参与动物饲养和保护工作的人士极为重要。 在许多物种中，oestrus周期受到环境因素的影响，如日照、温度和食物的可获得性。例如，在某些鹿类物种中，oestrus的开始与季节变化密切相关，确保交配发生在最有利于抚养后代的条件下。这种与环境线索的同步有助于最大化幼崽的生存机会。 在oestrus期间发生的生理变化包括激素水平的改变，特别是雌激素。这些激素的变化导致雌性的生殖器官发生变化，使其更能接受交配。在许多情况下，雌性动物会表现出oestrus的行为迹象，例如发声、活动增加，甚至梳理习惯的变化。这些行为旨在吸引雄性并发出它们的可交配信号。 在家畜中，了解oestrus的时机对繁殖者至关重要。例如，知道雌性狗或猫何时处于oestrus可以帮助主人做出关于繁殖的明智决定。这种知识也可以防止不必要的小狗小猫出生，因为许多宠物主人选择绝育以避免与繁殖相关的挑战。 此外，oestrus的研究不仅限于家畜；它在野生动物管理和保护中也扮演着重要角色。许多濒危物种有特定的繁殖季节，了解它们的oestrus周期可以帮助制定有效的保护策略。通过确保繁殖计划与自然生殖周期一致，保护工作者可以提高成功繁殖和种群恢复的机会。 oestrus的概念在医学研究中也具有重要意义。科学家研究各种哺乳动物的生殖周期，以更好地理解人类的生殖健康。从其他物种对oestrus的研究中获得的见解可以推动生殖技术和不孕症治疗的进步。 总之，术语oestrus概括了雌性哺乳动物生殖生物学中的一个关键方面。从影响交配行为到指导家畜的繁殖实践，再到帮助保护工作，oestrus的重要性不容小觑。随着我们继续探索动物繁殖的复杂性，对oestrus的理解将始终是生物学和生态研究的基石。