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Effective interventions to improve domain-specific social, emotional, or academic outcomes for twice-exceptional individuals who are gifted with ADHD as a disability
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作者 La Shun Carroll 《Psychosomatic Medicine Research》 2023年第4期1-4,共4页
The demand for effective interventions to improve domain-specific academic outcomes for individuals with special needs at either end of the spectrum has existed for some time.Since the earlier contributions to the lit... The demand for effective interventions to improve domain-specific academic outcomes for individuals with special needs at either end of the spectrum has existed for some time.Since the earlier contributions to the literature documenting gifted individuals who were simultaneously exhibiting disabilities,there has been some progress in our understanding.We now know that in individuals with both gifts and disabilities,potentially,either or both of the exceptionalities can obscure the effects of the other,which significantly delays the average time to receive a diagnosis.Such delays in diagnosis detrimentally impact the the form of effective interventions without a diagnosis.The purpose of this paper is t quality of life across various domains because there can be no opportunity to receive help in o determine whether effective interventions exist to improve domain-specific(i.e.,social,emotional,or academic)outcomes for people with both gifts and disabilities.A query was performed using evidence databases TRIP and PDQ for“twice-exceptional,”“Giftedness,”“Disability,”and“intervention.”The four most relevant,freely available studies in English were selected for critique.Despite identifying potential threats to validity among the studies,methodological similarities among them were strong enough to confidently conclude that not only do effective interventions exist for the population of gifted with ADHD,but the outcomes of these interventions may also carry over into other domains resulting in indirect effects. 展开更多
关键词 domain specific intervention academic outcomes giftedNESS twice exceptional SOCIAL EMOTIONAL academic ADHD
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Sensitizing a Gifted Child with Autism Spectrum Disorder towards Social Cognition: From Assessment to Treatment 被引量:1
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作者 Sergio Melogno Barbara Trimarco +1 位作者 Maria Antonietta Pinto Gabriel Levi 《World Journal of Neuroscience》 2016年第2期171-180,共10页
Social cognition difficulties are well documented in children with Autism Spectrum Disorder (ASD). This clinical case study reports on social cognition assessment and treatment of a gifted child, SC (9 years), with AS... Social cognition difficulties are well documented in children with Autism Spectrum Disorder (ASD). This clinical case study reports on social cognition assessment and treatment of a gifted child, SC (9 years), with ASD and an extraordinarily high verbal IQ (146). The assessment of theory of mind, emotion recognition and pragmatic abilities showed some weaknesses in these areas. The 4-month treatment was divided into 14 sessions and was aimed at helping SC to improve his abilities to recognize emotions and comprehend mental states. The main technique used in the intervention was “social reading” with video clips. The initial assessment was repeated after the treatment and in a follow up session. The results of this case study suggest that “social reading” can be considered as a beneficial technique for children with high-functioning ASD, and especially in giftedness conditions. 展开更多
关键词 Autism Spectrum Disorder gifted Child Social Cognition TREATMENT ASSESSMENT
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澳洲Gifted Education的教育特点及启示
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作者 过小芳 《基础教育外语教学研究》 2003年第1期55-58,共4页
本文在论述了Gifted Education的历史后,介绍了澳大利亚在Gifted Educafon方面的开展情况,并提出了Gifted Education在中国的价值体现,即迎合现代教育理念的发展需求,特殊的学习群体可以保证Gifted Education的顺利开展,为精英教育的发... 本文在论述了Gifted Education的历史后,介绍了澳大利亚在Gifted Educafon方面的开展情况,并提出了Gifted Education在中国的价值体现,即迎合现代教育理念的发展需求,特殊的学习群体可以保证Gifted Education的顺利开展,为精英教育的发展提供支持和保障,最后结合中国具体情况得出几点启示:要得到政府的支持,成为一种决策;要有科学公正的选拔程序和措施,要用动态的、辩证的眼光面对Gifted Education的发展。 展开更多
关键词 gifted EDUCATION 教育特点 澳大利亚 精英教育 智力超常学生
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Translating Interdisciplinary Research on Language Learning into Identifying Specific Learning Disabilities in Verbally Gifted and Average Children and Youth
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作者 Ruby Dawn Lyman Elizabeth Sanders +1 位作者 Robert D. Abbott Virginia W. Berninger 《Journal of Behavioral and Brain Science》 2017年第6期227-246,共20页
The current research was grounded in prior interdisciplinary research that showed cognitive ability (verbal ability for translating cognitions into oral language) and multiple-working memory endophenotypes (behavioral... The current research was grounded in prior interdisciplinary research that showed cognitive ability (verbal ability for translating cognitions into oral language) and multiple-working memory endophenotypes (behavioral markers of genetic or brain bases of language learning) predict reading and writing achievement in students with and without specific learning disabilities in written language (SLDs-WL). Results largely replicated prior findings that verbally gifted with dyslexia score higher on reading and writing achievement than those with average verbal ability but not on endophenotypes. The current study extended that research by comparing those with and without SLDs-WL with assessed verbal ability held constant. The verbally gifted without SLDs-WL (n = 14) scored higher than the verbally gifted with SLDs-WL (n = 27) on six language skills (oral sentence construction, best and fastest handwriting in copying, single real word oral reading accuracy, oral pseudoword reading accuracy and rate) and four endophenotypes (orthographic and morphological coding, orthographic loop, and switching attention). The verbally average without SLDs-WL (n = 6) scored higher than the verbally average with SLDs-WL (n = 22) on four language skills (best and fastest hand-writing in copying, oral pseudoword reading accuracy and rate) and two endophenotypes (orthographic coding and orthographic loop). Implications of results for translating interdisciplinary research into flexible definitions for assessment and instruction to serve students with varying verbal abilities and language learning and endophenotype profiles are discussed along with directions for future research. 展开更多
关键词 Defining SPECIFIC LEARNING DISABILITIES (SLDs) Diagnosing SPECIFIC LEARNING DISABILITIES in Written LANGUAGE (SLDs-WL) Verbal giftedNESS Multi-Component Working Memory ENDOPHENOTYPES LANGUAGE LEARNING Mechanism Translation Science for Diagnosis of SLDs
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Eating Habits, Family Flexibility and the Body Mass Index (BMI) in Gifted Students
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作者 Asghar Pouresmali Parastoo Semsarilar +1 位作者 Mehri Mowlaie Jaber Alizadeh Goradel 《Open Journal of Medical Psychology》 2015年第4期116-123,共8页
The aim of this research was to examine the effect of eating habits and family flexibility on the body mass index in gifted students of the eighth and ninth grade of high school. The research design of this study was ... The aim of this research was to examine the effect of eating habits and family flexibility on the body mass index in gifted students of the eighth and ninth grade of high school. The research design of this study was descriptive-correlation. The statistical population of this research included all high school gifted students of the eighth and ninth grade. The sample consisted of 220 gifted students who were selected by random sampling method. The average age of these participants was 14.56 years old, SD 10.41. Average participants BMI was 31.25, SD 3.12. One hundred and fifteen (52.28%) of these students were females and one hundred and five (47.72%) were males. Family flexibility was measured by Shakeri flexibility scale, eating habits were measured through Coker and Roger Eating Habits Questionnaire and body mass index was tested by Omron digital device. Using SPSS software, the data were analyzed to calculate correlation and simultaneous regression. The results of correlation showed that in these students, concern with weight and dieting and total eating habits have significant relationship with BMI (P < 0.001). The result of simultaneous regression also showed that concern with weight and dieting and total eating habits could explain BMI in these students (P < 0.001) and family flexibility could not explain BMI in these students (P < 0.005). The results emphasize the more important role of eating habits than family flexibility on BMI in gifted students because of sensitive and higher level of intelligence and high peer competitions. 展开更多
关键词 EATING HABITS FAMILY FLEXIBILITY Body Mass Index (BMI) gifted Student
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Xing Liangkun,a Gifted Ceramic Artist
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《China & The World Cultural Exchange》 2001年第3期11-13,共3页
关键词 Xing Liangkun a gifted Ceramic Artist
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Gifted Education in Hong Kong:A School-Based Support Program Catering to Learner Diversity 被引量:1
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作者 Ruby S.H.Cheung Anna N.N.Hui Alan C.K.Cheung 《ECNU Review of Education》 2020年第4期632-658,共27页
Purpose:This study explores the contributions and effectiveness of the Jockey Club“Giftedness into Flourishing Talents”Project(Project GIFT)in supporting learner diversity in gifted education,including meeting the e... Purpose:This study explores the contributions and effectiveness of the Jockey Club“Giftedness into Flourishing Talents”Project(Project GIFT)in supporting learner diversity in gifted education,including meeting the educational and psychological needs of highly capable and gifted students in Hong Kong.Design/Approach/Methods:This study investigates the effectiveness of Project GIFT in supporting the development of diversity in learning in 20 project schools.Through close cooperation with project schools,Project GIFT comprised six developmental areas:school development,curriculum development,teachers’professional development,parent empowerment,student development,and financial support.To further assess the usefulness of the school-based support provided by Project GIFT,this study examines the implementation of school-based gifted education in two project schools based on the aforementioned components.educational program in gifted education that intervened at both Level 1(whole class)and Level 2(pullout)of the three-tiered policy stipulated by the Hong Kong Education Bureau.One of the few gifted education programs implemented in Asia,Project GIFT focused on six key components to specifically support high-ability and gifted students with diverse educational and affective needs.This study shows that Project GIFT significantly enhanced diversity in learning,its collaboration with two key schools resulting in the successful enhancement of school development,professional development,curriculum development,student development,parent empowerment,and financial support.Originality/Value:The article fills the research gap by examining the effectiveness of a schoolbased gifted education program focused on enriching and differentiating curricula for different regular and pull-out programs.In doing so,this article attests to the success of the program in addressing the educational and psychosocial needs of gifted students at local schools in Hong Kong. 展开更多
关键词 Enriched and differentiated curricula gifted education giftedNESS learner diversity school-based curriculum talent search and development
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A hybrid method to select morphometric features using tensor completion and F-score rank for gifted children identification
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作者 ZHANG Jin FENG Fan +4 位作者 HAN TianYi DUAN Feng SUN Zhe CAIAFA Cesar F. SOLÉ-CASALS Jordi 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2021年第9期1863-1871,共9页
Gifted children are able to learn in a more advanced way than others, probably due to neurophysiological differences in the communication efficiency in neural pathways. Topological features contribute to understanding... Gifted children are able to learn in a more advanced way than others, probably due to neurophysiological differences in the communication efficiency in neural pathways. Topological features contribute to understanding the correlation between the brain structure and intelligence. Despite decades of neuroscience research using MRI, methods based on brain region connectivity patterns are limited by MRI artifacts, which therefore leads to revisiting MRI morphometric features, with the aim of using them to directly identify gifted children instead of using brain connectivity. However, the small, high-dimensional morphometric feature dataset with outliers makes the task of finding good classification models challenging. To this end, a hybrid method is proposed that combines tensor completion and feature selection methods to handle outliers and then select the discriminative features. The proposed method can achieve a classification accuracy of 93.1%, higher than other existing algorithms, which is thus suitable for the small MRI datasets with outliers in supervised classification scenarios. 展开更多
关键词 gifted children identification morphometric features tensor completion feature selection
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基于MILP的GIFT积分区分器搜索及优化
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作者 祖锦源 刘杰 +2 位作者 石一鹏 张涛 张国群 《计算机科学》 CSCD 北大核心 2023年第S02期886-893,共8页
Banik等提出的轻量级分组密码GIFT算法已经入选了NIST针对国际轻量级密码算法开展的标准化竞赛的最终轮。目前已有针对其的线性分析、差分分析等的相关研究,但针对GIFT的积分分析仍待进一步研究。针对GIFT在积分密码分析过程中可分路径... Banik等提出的轻量级分组密码GIFT算法已经入选了NIST针对国际轻量级密码算法开展的标准化竞赛的最终轮。目前已有针对其的线性分析、差分分析等的相关研究,但针对GIFT的积分分析仍待进一步研究。针对GIFT在积分密码分析过程中可分路径表达冗余的问题,提出了基于混合整数线性规划模型的积分区分器搜索求解和优化算法。首先对GIFT算法创建MILP积分分析模型,利用可分性质分别对GIFT算法的线性层和非线性层进行刻画。对线性层利用传播规则进行表达;对非线性S盒在传播规则的基础上使用贪心算法对表达式进行精简优化,得到了15个不等式作为约束条件。经过MILP求解后,得到64个9轮积分区分器。在此基础上,针对基于贪心算法的MILP求解模型精确度不足问题,引入MILP模型对S盒的可分性质进行重新表达,设计基于MILP的约简算法对GIFT积分区分器搜索进行优化,并重新求解MILP模型,最高得到了3个13轮的积分区分器。因此,基于MILP的S盒新约简算法可以优化S盒可分性质的表达,有效增加对GIFT算法的积分区分器攻击轮数,提高积分攻击效果。 展开更多
关键词 积分密码分析 混合整数线性规划算法 GIFT 可分性质 SPN网络结构
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Enhancing Security by Using GIFT and ECC Encryption Method in Multi-Tenant Datacenters 被引量:1
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作者 Jin Wang Ying Liu +2 位作者 Shuying Rao R.Simon Sherratt Jinbin Hu 《Computers, Materials & Continua》 SCIE EI 2023年第5期3849-3865,共17页
Data security and user privacy have become crucial elements in multi-tenant data centers.Various traffic types in the multi-tenant data center in the cloud environment have their characteristics and requirements.In th... Data security and user privacy have become crucial elements in multi-tenant data centers.Various traffic types in the multi-tenant data center in the cloud environment have their characteristics and requirements.In the data center network(DCN),short and long flows are sensitive to low latency and high throughput,respectively.The traditional security processing approaches,however,neglect these characteristics and requirements.This paper proposes a fine-grained security enhancement mechanism(SEM)to solve the problem of heterogeneous traffic and reduce the traffic completion time(FCT)of short flows while ensuring the security of multi-tenant traffic transmission.Specifically,for short flows in DCN,the lightweight GIFT encryption method is utilized.For Intra-DCN long flows and Inter-DCN traffic,the asymmetric elliptic curve encryption algorithm(ECC)is utilized.The NS-3 simulation results demonstrate that SEM dramatically reduces the FCT of short flows by 70%compared to several conventional encryption techniques,effectively enhancing the security and anti-attack of traffic transmission between DCNs in cloud computing environments.Additionally,SEM performs better than other encryption methods under high load and in largescale cloud environments. 展开更多
关键词 Multi-tenant DATACENTER user privacy transmission security GIFT ECC
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基于FPGA的GIFT分组密码算法实现
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作者 马绪健 刘姝 +1 位作者 高铭泽 董秀则 《计算机应用研究》 CSCD 北大核心 2023年第6期1825-1828,1844,共5页
GIFT算法作为PRESENT算法的改进版本,结构上更加简洁高效,在FPGA上运行时,性能仍然存在提升空间。对此提出了一种新的实现方案,通过将算法的40轮迭代计算优化为20轮迭,并将加解密与轮密钥生成操作并行执行。在xc6slx16 FPGA平台综合后,... GIFT算法作为PRESENT算法的改进版本,结构上更加简洁高效,在FPGA上运行时,性能仍然存在提升空间。对此提出了一种新的实现方案,通过将算法的40轮迭代计算优化为20轮迭,并将加解密与轮密钥生成操作并行执行。在xc6slx16 FPGA平台综合后,频率可达194 MHz,吞吐量可达1.2 Gbps,消耗时钟周期21个,结果表明,所提方法相比现有工作具有更好的性能表现和更少的时钟周期消耗,实现在FPGA上高速运行是切实可行的。 展开更多
关键词 GIFT 双级联 FPGA 轻量级分组密码
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Implications of The Gift of the Magi for Moral Education of Teenagers From the Perspective of Interaction Ritual Chains
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作者 Chen Linlin Wang Yuqing 《Contemporary Social Sciences》 2023年第4期133-141,共9页
Adolescence is a pivotal moment in shaping one’s character and holds great implications for one’s values and personal growth.The Gift of the Magi by O.Henry portrays how an ordinary young couple in difficult financi... Adolescence is a pivotal moment in shaping one’s character and holds great implications for one’s values and personal growth.The Gift of the Magi by O.Henry portrays how an ordinary young couple in difficult financial circumstances managed to show their love for each other,eulogizing truth,goodness,and beauty in humanity.We conducted a thorough examination of the significance of moral values conveyed in The Gift of the Magi for teenager education using the“situation-emotion-symbol”model that is based on Randall Collins’theory of interaction ritual chains in order to establish an interaction ritual chain model for moral education of teenagers.Our study reveals that situated cognition is useful in constructing the focus of attention for the moral education of teenagers;that shared emotion is the driving force for achieving moral education of teenagers;and that symbolic connections help teenagers put the virtues they’ve learned from The Gift of the Magi into action and provides effective measures that can significantly contribute to the cultivation and implementation of moral education among teenagers. 展开更多
关键词 interaction ritual chains The Gift of the Magi moral education of teenagers situated cognition shared emotions symbolic connections
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基于英文经典短篇小说的“以读促写”实践探讨——以欧·亨利短篇小说The Gift of the Magi为例
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作者 王寒英 《韶关学院学报》 2023年第11期74-80,共7页
立足于教师教学实践与学生的实战操练,以阅读欧·亨利的经典短篇小说The Gift of the Magi为途径,研究该小说的写作风格、写作技巧和语言风格,以实现学生读后促写的顺利迁移,进一步提升学生读后续写情节与细节刻画能力。
关键词 以读促写 欧·亨利 The Gift of the Magi 英文经典短篇小说
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吉富品系尼罗罗非鱼(GIFT)群体内的形态差异与分化 被引量:20
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作者 何杰 徐跑 +7 位作者 董在杰 朱健 张守领 张成锋 杨弘 农肖颖 梁政远 缪凌鸿 《中国水产科学》 CAS CSCD 北大核心 2009年第1期54-60,共7页
研究所用60个家系的吉富品系尼罗罗非鱼(GIFT strain Nile tilapia,Oreochromis niloticus;简称吉富罗非鱼)样本均为由世界渔业中心所在地马来西亚引进的原种。采用传统形态学测量方法,测量每尾鱼的体质量、体长、体高、体宽、头长、尾... 研究所用60个家系的吉富品系尼罗罗非鱼(GIFT strain Nile tilapia,Oreochromis niloticus;简称吉富罗非鱼)样本均为由世界渔业中心所在地马来西亚引进的原种。采用传统形态学测量方法,测量每尾鱼的体质量、体长、体高、体宽、头长、尾柄长和尾柄高后进行主成分分析和相关分析,研究吉富品系尼罗罗非鱼群体内的形态差异。结果显示,吉富罗非鱼体高与体质量的相关性最大(R2=0.9002)。在体长与体质量对应的点状分布中,总群体、雌雄群体和每个家系群体中均呈现出2条带状,分布于2条带的个体间质量差异不显著(P>0.05),对应的个体数量之比接近常数0.7;体高、体宽、头长、尾柄长和尾柄高相应的分布则呈现出变异幅度迥异的条带。本研究表明,吉富罗非鱼群体内部在形态上存在差异。 展开更多
关键词 吉富品系尼罗罗非鱼(GIFT) 群体 形态 体质量 差异与分化
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吉富罗非鱼对饲料中锌的需要量 被引量:10
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作者 吴凡 蒋明 +4 位作者 文华 刘伟 田娟 杨长庚 黄凤 《淡水渔业》 CSCD 北大核心 2015年第4期63-69,共7页
为考察吉富罗非鱼(GIFT,Oreochromis niloticus)对饲料中锌的需要量,以蛋氨酸锌为锌源,配制锌添加水平分别为0,10,20,40,80,160 mg/kg的6组等氮等脂饲料(实测值分别为9.98,21.47,33.75,56.03,88.16,172.54 mg/kg),饲喂初始体质量为(84.4... 为考察吉富罗非鱼(GIFT,Oreochromis niloticus)对饲料中锌的需要量,以蛋氨酸锌为锌源,配制锌添加水平分别为0,10,20,40,80,160 mg/kg的6组等氮等脂饲料(实测值分别为9.98,21.47,33.75,56.03,88.16,172.54 mg/kg),饲喂初始体质量为(84.44±3.04)g的吉富罗非鱼,试验鱼分为6组,每组3个重复,每个重复20尾鱼,养殖周期为10周。结果显示,随着饲料中锌含量的增加,吉富罗非鱼的增重率、特定生长率先显著升高,在锌含量达到33.75 mg/kg后趋于稳定,添加锌显著降低了饲料系数,提高了成活率。饲料锌含量对全鱼水分、粗蛋白及灰分含量无显著影响,显著降低了全鱼粗脂肪含量。饲料中添加锌对血清总胆固醇含量无影响,显著提高了血清碱性磷酸酶的活性,碱性磷酸酶活性在锌含量达到33.75 mg/kg后趋于稳定,血清甘油三酯含量,乳酸脱氢酶、谷草转氨酶和谷丙转氨酶活性则呈下降趋势。饲料锌含量显著影响脊椎骨、全鱼和肝脏锌的含量,脊椎骨和全鱼锌含量先线性上升,在锌含量达到56.03 mg/kg后趋于稳定,各组的肌肉锌含量无显著差异。以增重率、骨骼锌和全鱼锌含量为评价指标,根据折线回归分析得出,以蛋氨酸锌为添加锌源,吉富罗非鱼对饲料中锌的需要量分别为32.37、55.67和56.13 mg/kg。 展开更多
关键词 吉富罗非鱼(GIFT OREOCHROMIS niloticus) 生长 需要量
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改变水体盐度对吉富罗非鱼肌肉营养和呈味的影响 被引量:25
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作者 郭振 梁拥军 杨广 《淡水渔业》 CSCD 北大核心 2014年第4期77-82,95,共7页
为了解改变水体盐度对吉富罗非鱼(GIFT Oreochromis niloticus)肌肉营养价值和呈味的影响,以生长于淡水中的吉富罗非鱼为研究对象,逐步增加水体盐度,检测盐度分别达到18和36后鱼体肌肉中氨基酸和脂肪酸的变化。结果显示:盐度改变能明显... 为了解改变水体盐度对吉富罗非鱼(GIFT Oreochromis niloticus)肌肉营养价值和呈味的影响,以生长于淡水中的吉富罗非鱼为研究对象,逐步增加水体盐度,检测盐度分别达到18和36后鱼体肌肉中氨基酸和脂肪酸的变化。结果显示:盐度改变能明显影响罗非鱼肌肉内氨基酸、游离氨基酸及脂肪酸的含量,氨基酸总量、必需氨基酸及鲜味氨基酸含量均与盐度呈正相关关系。盐度调整完成后的第2 d,盐度为18和36的处理组鱼肉中氨基酸总量(TAA)分别为18.66%和19.54%,必需氨基酸指数(EAAI)分别为90.85和93.45,明显高于对照组(TAA为17.62%,EAAI为87.72),鲜味氨基酸含量也表现出相似的变化趋势;盐度调整完成后的第3 d,盐度18的处理组鱼肉中游离氨基酸总量(TFAA)达到最大值,而盐度为36的处理组在第2 d即已达到最高,分别为对照组(TFAA为0.085%)的2.52倍和4.06倍;盐度增加还可以提高罗非鱼肌肉中饱和脂肪酸(SFA)、单不饱和脂肪酸(MUFA)及多不饱和脂肪酸(PUFA)的含量,增大PUFA/SFA比值,提高罗非鱼脂肪酸的营养价值。 展开更多
关键词 吉富罗非鱼( GIFT OREOCHROMIS niloticus) 盐度 氨基酸 脂肪酸
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RAPD-SCAR Markers for Genetically Improved NEW GIFT Nile Tilapia (Oreochromis niloticus niloticus L.) and Their Application in Strain Identification 被引量:8
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作者 李思发 唐首杰 蔡完其 《Zoological Research》 CAS CSCD 北大核心 2010年第2期147-153,共7页
The NEW GIFT Nile tilapia (Oreochromis niloticus niloticus L.) is a nationally certificated new strain selected over 14 years and 9 generations from the base strain of GIFT Nile tilapia, introduced in 1994. This new... The NEW GIFT Nile tilapia (Oreochromis niloticus niloticus L.) is a nationally certificated new strain selected over 14 years and 9 generations from the base strain of GIFT Nile tilapia, introduced in 1994. This new variety has been extended in most of areas of China. The management of genetically improved strains, including the genetic markers for identification is needed urgently. RAPD analysis was conducted and their conversion to SCAR markers was developed. From NEW GIFT Nile tilapia, two strain-specific RAPD bands, S304624 bp and S36568 bp were identified. The strain-specific RAPD bands were gel-purified, cloned, and sequenced. Locus-specific primers were then designed to amplify the strain-specific bands. PCR amplification was conducted to test the variations in allele frequencies of two converted SCAR markers among the NEW GIFT Nile tilapia and its base strains, as well as 7 additional farmed strains worldwide. The frequency of SCAR marker Ⅰ (553 bp) was 85.7% in NEW GIFT Nile tilapia, but 16.7% in the base strain. The frequency of SCAR marker Ⅱ (558 bp) was 91.4% in NEW GIFT Nile tilapia, but 0% 70% in the 7 other strains. In order to confirm the utility of these two markers, an examination was conducted for a wild population from Egypt, resulted the frequency of SCAR Ⅰ and Ⅱ was 10% and 70%, respectively, much lower than that of New GIFT strain. The increase in allele frequency of these two SCAR markers suggests that these markers might be genetically linked to the quantitative trait loci (QTL) underlining the performance traits by long term selection, and indicate the bright potential of SCAR marker technology for tracking generations during selection progress and for distinguishing among genetically improved strain and other strains. 展开更多
关键词 NEW GIFT Strain Nile tilapia RAPD-SCAR marker Tracking Identification
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蚕蛹替代鱼粉对吉富罗非鱼肌肉营养成分的影响 被引量:6
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作者 王淑雯 罗莉 +4 位作者 黄先智 陈拥军 朱旺明 黄旺 林肯 《淡水渔业》 CSCD 北大核心 2016年第2期60-65,共6页
试验以300尾初始体重为(44.40±0.41)g的吉富罗非鱼(GIFT,Oreochromis niloticus)为研究对象,分别饲喂用蚕蛹(SP)替代0、25%、50%、75%和100%鱼粉(FM)的5种等氮(32%)等脂(5.5%)的饲料(分别命名SP0、SP25、SP50、SP75和SP100,基础饲... 试验以300尾初始体重为(44.40±0.41)g的吉富罗非鱼(GIFT,Oreochromis niloticus)为研究对象,分别饲喂用蚕蛹(SP)替代0、25%、50%、75%和100%鱼粉(FM)的5种等氮(32%)等脂(5.5%)的饲料(分别命名SP0、SP25、SP50、SP75和SP100,基础饲料中含8%的鱼粉),每组3重复,每重复20尾鱼,在室内循环水养殖系统进行为期8周的生长试验,旨在探讨蚕蛹替代鱼粉对吉富罗非鱼肌肉营养成分的影响。结果表明:随蚕蛹替代水平上升,吉富罗非鱼肌肉粗蛋白、灰分、总氨基酸、必需氨基酸显著下降,肌肉粗脂肪含量无显著差异;较SP0组,SP100组肌肉总氨基酸和必需氨基酸分别下降3.99%和3.46%。随蚕蛹替代量增加,吉富罗非鱼肌肉C18∶3n-3和C20∶5n-3显著上升,C18∶2n-6显著下降;SP100组吉富罗非鱼肌肉C18∶3n-3和C20∶5n-3较SP0组分别上升105.33%和132.72%。结论:蚕蛹替代鱼粉后显著提高了吉富罗非鱼肌肉C18∶3n-3和C20∶5n-3含量,有利于生产富含n-3PUFA的鱼肉产品。 展开更多
关键词 蚕蛹 鱼粉 吉富罗非鱼(GIFT Oreochromis niloticus) 氨基酸 脂肪酸
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吉富罗非鱼对饲料中苏氨酸的需要量 被引量:4
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作者 周兴华 向枭 +2 位作者 罗莉 文华 赵海鹏 《淡水渔业》 CSCD 北大核心 2014年第4期83-89,共7页
选用初始体质量为(67.08±0.22)g的吉富罗非鱼(GIFT Oreochromis niloticus)360尾,随机分成6组,每组3个重复,分别在水泥池(2.5 m×1.4 m×1.5 m)中饲喂苏氨酸水平为0.49%、0.88%、1.27%、1.67%、2.06%和2.46%(占饲料的质量... 选用初始体质量为(67.08±0.22)g的吉富罗非鱼(GIFT Oreochromis niloticus)360尾,随机分成6组,每组3个重复,分别在水泥池(2.5 m×1.4 m×1.5 m)中饲喂苏氨酸水平为0.49%、0.88%、1.27%、1.67%、2.06%和2.46%(占饲料的质量分数)的6组等氮半精制饲料(蛋白质质量分数为32.13%),经60 d生长实验确定吉富罗非鱼的苏氨酸需要量。结果显示,随着饲料苏氨酸水平增加,各饲料处理组成活率(96.67%~98.83%)无显著差异。吉富罗非鱼的增重率、特定生长率和蛋白质效率显著升高,均在1.67%组达到最大值;饲料系数显著降低,在1.67%组达到最小值;随着饲料苏氨酸水平进一步提高,上述指标不再发生显著变化。随饲料苏氨酸水平增加,吉富罗非鱼的肥满度无明显变化,肝体指数和脏体指数呈明显的先降后升趋势。饲料苏氨酸适宜水平(0.49%~1.67%)能使吉富罗非鱼肌肉水分含量显著降低,蛋白质含量显著增加,对脂肪和灰分含量无显著影响。饲料中苏氨酸水平为1.67%时,吉富罗非鱼肌肉苏氨酸含量和氨基酸总量均为最大值,显著高于其它各组。以增重率、特定生长率、饲料系数和蛋白质评价指标经二次回归分析得出,吉富罗非鱼饲料中苏氨酸适宜需要量以占饲料的质量分数计为1.62%~1.72%(饲料蛋白质质量分数32.13%)或以占饲料蛋白质的质量分数为5.04%~5.35%。 展开更多
关键词 吉富罗非鱼( GIFT OREOCHROMIS niloticus) 苏氨酸 需要量
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饲料中添加谷胱甘肽对吉富罗非鱼抗氧化和抗亚硝基氮应激能力的影响 被引量:5
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作者 周婷婷 曹俊明 +4 位作者 黄燕华 王国霞 赵红霞 孙智武 刘群芳 《淡水渔业》 CSCD 北大核心 2013年第1期59-62,68,共5页
选择初始体重(3.27±0.04)g的吉富罗非鱼(GIFT Oreochromis niloticus),分别投喂基础饲料和添加80、160、240、320和400 mg/kg谷胱甘肽(GSH)的试验饲料,记作G0、G80、G160、G240、G320和G400。49 d后,G320血清和G160、G240肝脏谷胱... 选择初始体重(3.27±0.04)g的吉富罗非鱼(GIFT Oreochromis niloticus),分别投喂基础饲料和添加80、160、240、320和400 mg/kg谷胱甘肽(GSH)的试验饲料,记作G0、G80、G160、G240、G320和G400。49 d后,G320血清和G160、G240肝脏谷胱甘肽S-转移酶,G160、G240血清和G320肝脏谷胱甘肽还原酶,G240肝脏超氧化物歧化酶,G320血清和G240肝脏过氧化氢酶活性,G240~G400血清和G240肝脏总抗氧化能力,G320血清抗超氧阴离子活性,与对照组相比分别显著升高。G80~G320肝脏丙二醛含量显著低于对照组。在亚硝基氮应激96 h内,G320累积死亡率显著降低。结果表明,饲料中添加一定量的GSH能显著提高罗非鱼的抗氧化性能和抗亚硝基氮应激能力。 展开更多
关键词 谷胱甘肽 吉富罗非鱼(GIFT Oreochromis niloticus) 抗氧化 亚硝基氮
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