就巢性

In avian, PRL is especially crucial for reproduction traits such as broodiness and thus for egg production.

在家禽中PRL主要影响就巢性，进而影响到产蛋性能等繁殖性状。

Considering the biological importance of POU1F1 and the results got in our research, we suggested that Pit-1 be a candidate gene for growth, egg laying and broodiness research in poultry.

考虑到POU1F1的重要作用和作者的研究，作者认为Pit-1基因可作为家禽生长、产蛋、就巢性等重要经济性状的候选基因。

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。

Studies on the Blue-shell chickens under floor condition showed that the PRLpro2 deletion allele was significantly (p.05) associated with broody traits including nesting days, broody days, repeats of broody cycles, duration of broodiness, and broody frequency.

对平养条件下绿壳蛋鸡的就巢性研究表明，缺失型等位基因与就巢性状(卧息时间、就巢时间、就巢次数、就巢持续时间和就巢频率)呈显著的正相关(P.05)。

Based on the understanding of physiological pathway for broodiness, three genes related to broodiness including PRL, PRL receptor, and pituitary-specific transcription factor (POU1F1)-encoding genes were selected as candidates to screen the genomic variation by means of PCR-SSCP protocol and analyze the association with chicken broodiness and other target traits.

禽类血浆PRL水平上升与就巢行为的起始和维持具有密切的相关性，本研究采用候选基因的策略，通过分析就巢行为发生的生理机制，选择与就巢性状密切关联的PRL、PRL受体和PRL转录调控因子——垂体特异转录因子(pituitary-specific transcription factor，POUlF1)基因，采用PCR-SSCP分析检测基因变异，并分析基因变异与就巢性和其它目标性状的相关性。

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。

Common symptom has, depressed of ill chicken spirit, feed wastage decreases, angular; Increase of the hen with respect to mew sex, volume yield an egg drops; Till,spend gently serious respiratory tract symptom, include cough, sneeze mixes a large number of lachrymation; The head and facial ministry oedema, nerve is mixed mussily diarrhoea.

常见症状有，病鸡精神沉郁，饲料消耗量减少，消瘦；母鸡的就巢性增强，产蛋量下降；轻度直至严重的呼吸道症状，包括咳嗽、打喷嚏和大量流泪；头部和脸部水肿，神经紊乱和腹泻。

It has been well established that PRL is closely related to the onset and maintenance of broody behavior.

在家禽中PRL主要影响就巢性，进而影响到产蛋性能等繁殖性状。

Metastatic tumours should consider melanoma (coexists of both nested and spindled areas), neuroendocrine tumour (nests separated by fibrovascular septa) and poorly differentiated carcinoma.

如果是转移性肿瘤，那么就应该考虑黑色素瘤、神经内分泌肿瘤（细胞巢间见纤维血管间隔）以及低分化癌。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。