家禽

For female chickens, however, the body weight at 14 wks of age for AA was greater (p.05) than that for TT. Therefore, P0U1F1_6 is an effective molecular marker that can be used in MAS program for early growth rate in chicken, especially for male chickens.The better understanding of the mechanism of broodiness stands great significance not only for avian genetics, behavior, and endocrinology, but also for the acceleration of poultry breeding progress against broodiness to enhance egg producti

研究家禽就巢性的遗传机理，不但对鸟类遗传学、行为学、内分泌学等方面有重要的理论意义，而且本研究成果有助于加速无就巢性或低就巢性的家禽品种或品系的培育，从而提高禽群的产蛋性能和种刚性能，尤其对我国地方禽种资源的开发利用有重要的意义，具有广阔的应用前景。

Prolactin,Growth Hormone, and Thyroid-stimulating Hormone-β, secreting by chicken anterior pituitary, are essential hormones affecting chicken laying ability, growth rate, and immunity via regulating chicken broodiness, development, and immune response.

催乳素（Prolactin，PRL）、生长激素（Growth Hormone，GH）、促甲状腺素β（Thyroid-stimulating Hormone-β，TSHβ）是家禽垂体前叶分泌的具有重要生理功能的激素，这些激素通过调控家禽就巢性的发生与维持、生长发育、免疫应答等过程来影响家禽的产蛋性能、生长性能以及免疫力。

College of Animal Science and Technology, China Agricultural University, Beijing 100094, ChinaProlactin,Growth Hormone, and Thyroid-stimulating Hormone-β, secreting by chicken anterior pituitary, are essential hormones affecting chicken laying ability, growth rate, and immunity via regulating chicken broodiness, development, and immune response.

催乳素（Prolactin，PRL）、生长激素（Growth Hormone，GH）、促甲状腺素β（Thyroid-stimulating Hormone-β，TSHβ）是家禽垂体前叶分泌的具有重要生理功能的激素，这些激素通过调控家禽就巢性的发生与维持、生长发育、免疫应答等过程来影响家禽的产蛋性能、生长性能以及免疫力。

In a majority of poultry plants in the United States, an immersion water chiller is used to chill birds.

在美国的大多数家禽工厂，用浸泡冷水机组来冷冻家禽。

Any of an English breed of domestic fowl often crossbred to produce roasters.

英国品种的小家禽；主要用于杂交产生适合烤的家禽。

Based on different DNA fragments between Z and W chromosome, the developed PCR method has no risk of the mistrial of those sex identification markers depended on W chromosome, and can omit extra internal control or restriction enzyme deigestion. The DNA-based spindlin gene approach can provide a rapid, exact and low cost method for sex identification in poultry.

本研究以PCR检测家禽Z与W性染色体中之纺缍体蛋白基因intron序列，以其长度的差异来鉴定家禽性别，可避免仅检测W染色体性别鉴定标记的误判，且不需再搭配内部对照，更不需结合限制酶切割法即进行家禽性别鉴定。

The content of poultry science is mainly composed of introduction, poultry breeding, reproduction and hatch, as well as nutrition and management for feeding, environment control, equipments for poultry farm and technology for feeding, etc.

家禽学的主要内容为：绪论、家禽的育种、繁殖、孵化；营养与饲养管理；家禽的环境、禽舍与设备及各阶段的饲养管理技术等。

Fresh, frozen or live poultry, other than live poultry on a poultry farm

新鲜、冷藏或活家禽，不包括家禽农场的活家禽

The difference between china poultry industry and international standard is becoming smaller and smaller in breeder,disease control,nutrition and technique after rapid development in china ,but the difference is still big on poultry house environmental control,The effection of house environment improvement on chick health and performance is overlooked . Poultry house environmental control is becoming more and more important in poultry industry.

随着近年来养鸡业的迅猛发展，目前我国在品种、营养、疾病控制和饲养技术方面与国际先进水平的差距逐渐缩小，但在环境控制方面还存在着很大的差距，环境控制对家禽生产的影响一直没有得到应有的重视，在国内目前基本解决了家禽良种引进、烈性传染病控制、营养和饲养技术等问题的前提下，鸡舍环境控制在家禽生产中起着非常重要的作用。

At present, the village for many years more than 5000 poultry rearing large families more than 50 years, the volume of poultry in more than 40 million, the poultry industry could be in a value of about 14,000,000 yuan.

目前，全村有年饲养家禽5000只以上的饲养大户50多户，年家禽饲养量40多万只，家禽饲养业年可创值约1400万元。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。