蛋鸡

尽管肉鸡和蛋鸡SS神经原数量没有明显的性别变化，但公鸡SS神经原的总数比母鸡要高。

Though no obvious sex difference was identified in the distribution of the SS-neuron both in the broiler and layer , the total number of SS-neuron in the male was higher than that in the female .

蛋鸡养殖市场效益分析与提高效益的关键技术

Analysis of Layer Breeding Market Efficiency and Key Technologies for Improving Efficiency

不同剂量维生素C对蛋鸡免疫机能的影响

Effects of Different Dietary Vitamin C Levels on Immune Fuction of Layers

昼夜节律性温度变化对蛋鸡血钙浓度及其pH值的影响

Effect on Blood Calcium Concentration and pH in Hens under Cyclic Temperature Changes

维生素C、E对热应激期蛋鸡血液生化指标的影响

Effects of vitamin C and E on blood biochemical parameters in layers exposed to heat stress

维生素C对蛋鸡部分免疫器官指数及新城疫抗体效价的影响

Effect of Dietary Vitamin C Levels on the Part of Immune Organ Index and the Immune Fuction of Newcastle Disease

高能低蛋白日粮对蛋鸡肝载脂蛋白AⅠ基因mRNA表达的影响

Effect of high-energy-low-protein diet on Apo A ⅰ mRNA expression in liver of laying hens

热应激中蛋鸡血液和肝脏SOD活性的动态变化

Change on SOD in Red Cell and Liver of Laying Hens in Heat-stress

试验一、二、三组蛋鸡的产蛋率、平均产蛋量和饲料转化率都高于对照组，差异极显著（p＜0.01）。

The layering rate , average laying quantity and feed conversion efficiency of the experimental groups were higher than the normal control group .

日粮钙水平对产蛋鸡吸收~（65）Zn的影响

Influence of High Level of Dietary Calcium upon Absorption of Zinc in Laying Hens

结果表明：各组间罗曼蛋鸡产蛋率、饲料转化率、产蛋饲料成本和血液生化指标测定值有显著（P＜0.05）或极显著（P＜0.01）差异。

The results showed that there were highly significant differences among various group hens in laying rate , feed conversion efficiency and blood parameters .

EM有效微生物饲喂蛋鸡效果的研究

Studies on the Effects of EM Effective Microbe for Feeding Layers

低钙性笼养蛋鸡骨质疏松症PTH、CT及E2的变化

Changes of PTH , CT and E_2 in Cage layer Osteoporosis form Lower Calcium Dietary

~（90）Sr在京白蛋鸡体内的分布动力学研究

Kinetics of distribution of ~ ( 90 ) sr in Beijing - white layers

来曲唑对青年ISA蛋鸡髓质骨形成的影响

Effect of Letrozole on Medullary Bone Osteogenesis in Young ISA Hens

不同光周期下ISA褐蛋鸡松果腺GnRH-ⅠmRNA表达的变化

Change of GnRH - ⅰ mRNA expression in pineal Gland for ISA brown layers at different photoperiods

FH生物活性饲料酵母的营养特点及在蛋鸡饲料中的应用试验

The Nutrition Characteristics and Application Test on Layer Feed of FH Biological Activity Feed Yeast

SPA活体测定蛋鸡胫骨骨矿含量方法及其重复性、准确度的探讨

Study on precision and accuracy in measurement in vivo of bone mineral content with SPA in hens

这一结果提示突变型抑癌基因p53的表达参与蛋鸡J亚群禽白血病发生、发展过程。

The result suggested that expression of tumor suppressor gene p53 was concerned with occurrence and development of avian leukosis subgroup J .

热应激产蛋鸡日粮中添加抗氧化微营养素对其心、肝、蛋中维生素E含量的影响

The effect of high ambient temperature and adding anti-oxidative micro-nutrients to the diets on the contents of vitamin E in the heart , liver and egg of layers

日粮Se水平为0.20～0.25mg/kg时，蛋鸡血液免疫指标的改善程度不一。

As the level of dietary Se was 0.30 mg / kg , the degree of improving immune index of blood was different .

研究了15、35、58和70周龄伊莎（ISA）笼养蛋鸡骨代谢变化规律。

The changes of bone metabolism in ISA layers with 15,35,58 and 70 week-age were reported in this paper .

本文利用mRNA差异显示技术对8周龄中国地方品种丝毛乌骨鸡、引进品种白莱航蛋鸡、白洛克肉鸡进行基因差异表达分析。

MRNA differential display method was used to analyze differential expressed gene fragments ( among ) 8 week - old Silkies , White Leghorn and White Plymouth Rock breeds .

蛋鸡血浆VLDL浓度二世代双向选择对体脂沉积的影响

Effects of Plasma VLDL Concentration Divergent Selection on Abdominal Fat Deposit of Layer Chickens

不同日龄蛋鸡卵泡发育、血清FSH和E2值变化规律以及转化生长因子β1（TGFβ1）在卵巢和输卵管表达规律的研究

The Study of Dynamic Changing Manners of Follicles Development , FSH , E_2 and TGF - β _1 Expression in Ovary and Oviduct in Hens at Different Days

发现蛋鸡在生长早期（1周龄和3周龄）SS神经原数量较多，6周龄时暂时降低，到9周龄又回升；

The number of SS neuron was increased at 1 week and 3 weeks then decreased at 6 weeks , followed by increased by 9 weeks .

本文给出了产蛋率的样条优化回归分析方法，并应用于杭州市蛋鸡试验场法国ISA蛋鸡的产蛋率数据。

Spline optimization regression analysis methods were applied to get the data of egg laying rate of French ISA layer in Hangzhou Layer Experiment Farm .

为进一步了解该病毒对鸡的非典型发病的原因，我们通过人工发病方法对不同ND抗体水平的产蛋鸡进行了攻毒试验。此结果与绵羊人工感染Br.ovis结果相似。

For understanding the reason why this strain could cause atypical ND , we implemented an artificial infection experiment that three different ND antibody levels ' layers were used and challenged with this isolate .

本研究以大豆生物活性肽（SBP）为原料，着重研究了大豆肽对蛋鸡的生产性能、蛋黄胆固醇、蛋黄色度的影响，从胆汁酸、胆固醇代谢的角度对大豆肽的影响机制进行了探讨。

This study focused on the effects of soybean bioactive peptides ( SBP ) on productive performance , yolk cholesterol and yolk color in laying hens .

选用24周龄Hy－Line蛋鸡分别饲养于20℃、30℃和35℃环境中，在日粮中添加不同水平的抗氧化微营养素，观察了产蛋鸡生产性能的变化。

Twenty four week old Hy line laying hens were kept at ambient temperatures of 20 ℃, 30 ℃, and 35 ℃ to investigate the effect of anti oxidative micro nutrients on the performance of laying hens .