试验旨在研究中药五倍子和五味子对蛋鸡生长性能、血液指标和免疫功能的影响.试验选择 1 日龄农大 3 号蛋鸡 450 只,随机分为 10 组,每组 3 个重复,每个重复 15 只,分别饲喂基础日粮(对照组)、基础日粮+0.5%五倍子(Ⅰ组)、基础日粮+1%五倍子(Ⅱ组)、基础日粮+1.5%五倍子(Ⅲ组)、基础日粮+0.5%五味子(Ⅳ组)、基础日粮+1%五味子(Ⅴ组)、基础日粮+1.5%五味子(Ⅵ组)、基础日粮+0.5%五倍子+0.5%五味子(Ⅶ组)、基础日粮+0.5%五倍子+1%五味子(Ⅷ组)、基础日粮+1%五倍子+0.5%五味子(Ⅸ组),试验期为 42 d.结果显示:Ⅰ组、Ⅳ组、Ⅴ组、Ⅵ组体重显著高于对照组(P<0.05);Ⅰ组、Ⅱ组、Ⅳ组、Ⅴ组、Ⅵ组平均日增重显著高于对照组(P<0.05),Ⅵ组平均日增重最高;Ⅴ组平均日采食量显著高于对照组(P<0.05);Ⅳ组脾脏指数显著低于对照组(P<0.05);Ⅳ组血清中 SOD酶活性显著高于对照组(P<0.05).研究表明,在日粮中添加不同剂量的五味子和五倍子能够提高蛋鸡的生产性能,增强其机体免疫力和抗氧化能力,其中日粮中添加 0.5%的五味子效果较明显.

为研究五味子对产蛋期藏鸡肠道微生物的影响,探明中药五味子对家禽肠道微生物作用的机理,以40周龄藏鸡作为试验对象,对照组饲喂全价产蛋期日粮,试验组饲喂添加0.5％五味子的全价日粮,4周后收集藏鸡回肠内容物,对其中微生物的16S rRNA V3～V4可变区进行Illumina高通量测序和生物信息学分析.结果表明,饲料中添加五味子后藏鸡肠道微生物的OTU种类无显著变化,但相似性增加.藏鸡肠道微生物中厚壁菌门、拟杆菌门、变形菌门、梭杆菌门为优势菌群,五味子组与对照组相比拟杆菌门相对丰度上调16.37％,主要是由拟杆菌门下的拟杆菌属和理研杆菌属的相对丰度上升引起,厚壁菌门相对丰度下调19.78％,这主要是由厚壁菌门下的的乳酸杆菌属和罗姆布齐亚菌属的相对丰度下调引起.五味子组氨基酸球菌科、考拉杆菌属的相对丰度与对照组相比上调差异显著(P<0.05).五味子组与对照组相比肠道微生物物种α多样性有所升高,组内不同样本间微生物β多样性的差异性减小,但差异不显著.结果表明,产蛋期藏鸡饲料中添加0.5％五味子使藏鸡肠道微生物多样性增高,而个体间菌群差异性减小,部分有益微生物的生长得到了有效促进,有利于藏鸡肠道健康.

为提高水禽体重测定的智能化水平,避免测定对种群造成的应激,采用AI监控结合人工辅助方式,测定408只太湖母鹅的实时总重和数量,构建出用多个样本平均数估计体重参数的统计模型.结果表明,智能采集系统估计的平均值优于随机抽样,更加接近总体平均数.智能采集系统估计的标准差处于随机抽测标准差的取值范围内,估计结果与抽样方式有关.智能采集次数k越多,单次样本含量数越大,智能化称重采集分析结果越准确.研究结果提示,智能采集总样本含量在200只以上,智能采集次数30次以上,以提高智能采集分析系统估计的准确性.

无界化理念,是新加坡南洋理工学院(NYP)的创新思想和理念内涵之一,也是重要特色之一.文章主要从校中厂建设、课程体系改革、教学模式的改革、科研项目的融合、考核方式的改革等几个方面介绍了《家禽生产》课程教学"无界化"融合的实践.

针对现代畜牧业转型升级对专业技术技能人才的需求，我们提出将“科研”融入高职教育“工学结合”人才培养过程，探索工作过程、学习过程和技术活动过程的有机结合，并以《家禽生产》课程改革为例，阐述了高职“工学研融合”课程教学改革的探索与实践，旨在解决高职专业教学与产业发展脱节、毕业生实践创新能力不强等突出问题，提升人才培养质量。

"教学工厂"理念是职业技术学院重要的办学思想。主要从"情境化"教学平台的建设背景、平台建设、组织实施、心得体会等几个方面介绍了畜牧兽医专业《家禽生产》课程建设"工学结合"教学工厂的过程和实践情况。

<正>蛋壳质量的好坏一直是影响禽蛋业经济效益的一个重要因素。影响蛋壳品质的因素很多,包括家禽品种、疾病、饲养的环境温度、动物所处的生理阶段和饲料中各种营养物质的含量等,都能影响蛋壳的质量。当家禽患有新城疫、传染性支气管炎和产蛋下降

在江苏现代畜牧业校企合作示范区,江苏畜牧兽医职业技术学院与江苏高邮鸭集团合作建成的“校中厂”及畜牧兽医企业技师工作站正式成立并投入运营.由江苏畜牧兽医职业技术学院实施的“校中厂”和技师工作站模式,选择企业主体、学校主导的校企合作新路径,较好地解决了目前我国高职教育校企合作中出现的企业的主体地位没有凸显、政府的主体行为指向不明、学校的主导作用很难发挥的瓶颈问题,为高职教育校企合作开创一条新的发展之路.

[Objective] The effects of adding activin A in the culture solution on the cytoplasmic maturation of pig oocytes during in vitro maturation process.[Method] Different dose of Activin A was added in TCM-199 to culture pig oocytes for 40 h.The distribution morphological types of the stained mitochondria were observed by using laser confocal microscope to judge whether the cytoplast of pig oocytes was mature or not.[Result] When the dose of Activin A was 100 ng/ml,the number of oocytes with diffusedly-distributed mitochondria in the cytoplast extremely significantly increased(P0.01) and the number of oocytes with peripherally-distributed mitochondria and semi peripherally-distributed mitochondria significantly decreased(P0.05).[Conclusion] Adding Activin A in the mature culture solution during in vitro maturation process of pig oocytes can promote the cytoplasmic maturation of oocytes.

<正>斗鸡是以善打好斗著称的珍禽。斗性是动物为了争夺地盘、饮食、配偶权及群体中的统治地位而进行的斗争行为。斗鸡打斗有很高的观赏价值,2008年3月份江苏畜牧兽医职业技术学院畜牧科技园引进中原斗鸡40只、越南斗鸡20只,进行扩繁、适应性

Objective: To evaluate the relationship between the melanocortin receptor 1(MC1R) gene and coat color by comparing single-strand conformation polymorphism(SSCP) of Tibetan mastiff with different coat colors.Methods: DNA extracted from specimens of Tibetan mastiff with different coat colors were analyzed and se quenced.A pair of primers was designed by sequence of MC1R gene of Holstein published in GenBank.Results: The MC1R gene of SSCP in the Tibetan mastiff was detected through PCR-SSCP.The polymorphism was found with two alleles A and B and three genotypes AA,AB and BB.The polymorphic fragments were sequenced.Ac cording to the results of sequencing,the mutation(G313A) in CDS of MC1R gene was found and it altered amino acid at the position 105 from alanine to threonine.Conclusion: There is no notable correlation between SNP of MC1R gene and coat color.

The principal component trait about functional group was set up by restriction of decision rate.12 quantitative traits of 27 Chinese native chicken breeds were used to Constructed 3 functional principal component traits:volume of principal component,reproduction of principal component,slaughter of principal component,which were used for cluster analysis and comprehensive evaluation of Chinese native chicken species would be a new method.

构建一种基于工作过程的＂理实一体化＂教学模式并付诸于实践,将有助于提高畜牧兽医专业教学水平和人才培养质量。本文从课程设计理念与思路、整合课程内容、构建＂六化＂教学模式、改革教学方法与手段、建立多元综合评价的考核方式和创造＂四维＂保障条件等方面阐述了《家禽生产》课程进行＂理实一体化＂教学改革的实践。

家禽生产是畜牧兽医类专业的核心专业技能课程之一.江苏畜牧兽医职业技术学院根据国务院关于大力发展职业教育的决定精神,以科学发展观为指导,促进高职教育健康发展的总体要求,围绕家禽生产各环节任务需求,依托江苏畜牧兽医职业技术学院雄厚的校内外实训基地及多元化教学团队的支撑,开发了"课堂一养殖场"工学交替、轮岗实训的教学模式,对建设家禽生产国家精品课程,培养畜牧专业高技能人才具有重要的意义.

Comprehensive principal component trait is set up by restriction of breeding objective using integration and optimization methods.It is a linear combination of straits with principal component which have larger phenotype or genotype variance.As selection index,ti is unique,predictable and can result in good selection effect.

工作过程系统化的课程开发是在有序性、整体性和生成性的原则下,从实际工作的需要和高职教育需要这两个维度上予以整体设计,有系统的逻辑路线。在基于工作过程系统化的《家禽生产》课程开发思想指导下,详细叙述了该课程的开发理念与思路、具体开发过程和教学方法与手段的应用。课程开发体现了职业教育工作与学习紧密联系,较好地突出了课程的职业性、开发性和实践性。

根据畜牧产业结构调整对人才规格的要求,探索一套与动物科学专业人才培养目标相适应的模块嵌入式产学合作模式,对构建专业人才培养方案,提高人才培养质量具有一定的参考价值。

The differentiation of poultry′s gonads is related to the regulation of estrogen,and the synthesis of estrogen is catalyzed by aromatase.The female muscovy gonads can develop into male when the activity of aromatase is blocked by aromatase inhibitor before sexual differentiation.In order to learn the effection of aromatase inhibitor to the hatchability and the growth of sexual gonade on muscovy,in this experiment,the fertilized eggs were injected separately with two kinds of aromatase inhibitors,formestane(steroid) and letrozole(nonseroid).The results showed that 100 and 150 μg·egg-1 formestane(steroid) can effectively reverse female muscovy to male(P0.01),the rate of masculinization was 52.94% and 55.56% which was identified by genetic sex,but the hatchability of muscovy decreased along with the concentration of formestane,100 μg·egg-1 letrozole(nonseroid) can effectively reverse female muscovy to male(P0.05) and the rate of masculinization was 36.36%,but 50 and 150 μg·egg-1 letrozole can′t reverse sexual efficiency.The hatchability of letrozole groups were lower than that of the normal group.The two sides of sexual gonads on fully masculinized muscovys were like normal testis,but there were some morphologic differentiations among the two sides of sexual gonads on partial masculinized muscovys.The left gonad was reversed less than the right′s and the structure was between testis and ovary.

Center on breeding objectives,the canonical selection index of Landrace pigs is estimated by combination of canonical analytical and path analytical method.The total heredity progress CGS_(V(x_i)) of trait x_i for canonical objective trait(V) can be differentiated in parts : direct contribution C_i of trait x_i and indirect contribution r_(pij) C_j of trait x_i via trait x_j.It can help in the understanding of weight and function of each trait in canonical selection index.