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6篇 您的检索式:作者名="Chris Haley"
    题名 作者 年代 出处 被引量
1对两种不同饲养条件下猪生长和胴体性状的遗传与表型参数的研究显示文摘本文对自由采食和限制喂料两群猪的平均日增重(DG)、平均日采食量(FI)、饲料转化率(FCR)、P_2点背膘厚(BF)和后腿瘦肉量(HL)作了遗传分析和比较。试验猪为合成品系,主要的遗传血统为大白猪和长白猪以及少量的巴克夏猪。限制采食猪各性状的平均数和标准差为:DG 729±48.45g,FI 1.85±0.043kg,FCR 2.56±0.15,BF 15.3±1.90mlmHL 6.07±0.36kg,自由采食猪相应为:821±85.87g,2.31±0.16 kg,2.85±0.31,16.8±2.43mm,6.07±0.56kg。限制采食猪各性状的遗传力:DG 0.399,FI 0.410,FC R0.403,BF 0.619,HL 0.446,而自由采食猪分别为0.307,0.480,0.129,0.315和0.350。在限制采食下,日增重与饲料转化率、日增重与后腿瘦肉量、饲料转化率与后腿瘦肉量有很强的遗传相关,分别为-0.94,0.95和-0.97;而在自由采食下这三个相关分别为-0.46,0.97和-0.46。胡锦平 Chris Haley Cam Mcphee 1990畜牧兽医学报1990,21,2:3
2限制与自由采食条件下猪主要性状遗传和表型参数的研究显示文摘猪的生长速度、饲料转化率和胴体质量是主要生产经济指标,也是重要的育种改良性状。了解这些性状在不同饲养条件下的遗传和表型参数,可为育种选择工作提供依据。本文对自由采食和限制喂料两群猪的平均日增重(DG)、日采食量(FI)、饲料转化率(FCR)、P_2点背瞟厚(BF)和后腿瘦肉量(HL)作了遗传分析和比较。试验猪为合成品系,其主要遗传成份为大白猪和长白猪以及少量巴克夏猪。分析结果:限制采食猪各性状的平均数和标准差为:DG729±48.45g,FI1.85±0.043kg,FCR2.56±0.15,BF15.3±1.90mm,HL6.07±0.36kg;自由采食猪依次为821±85.87g,213±0.16kg,2.85±0.31,16.8±2.43mm和6.07±0.56kg。限制采食猪各性状的遗传力为:DG0.399,F10.410;FCR0.403,BF0.619,HL0.446;自由采食猪依次为0.307,0.480,0.129,0.315和0.350。在限制采食下,DG与FCR、HL;FCR与HL之间有很强的遗传相关,相关系数分别为-0.94,0.95和-0.97;而在自由采食下,这三个相关系数则依次为-0.46,0.97和-0.46。胡锦平 Chris Haley Cam Mcphee 1989浙江农业学报1989,1,1:1
3Multiple Marker Mapping of Quantitative Trait Loci in a Cross Be-tween Outbred Wild Boar and Large White Pigs显示文摘Sara A. Knott Lena Marklund Chris S. Haley 0,,:1
4Fine mapping of trypanosomiasis resistance loci in murine advanced intercross lines显示文摘Fuad Iraqi Steven J. Clapcott Praveen Kumari Chris S. Haley Stephen J. Kemp Alan J. Teale 2000Mammalian Genome2000,,8:1
5QTL express:mapping quantitative trait loci in simple and complex pedigrees 显示文摘George Seaton Chris S Haley 2002Bioinformatics Applications Note2002,18,2:1
6Every breath you take:assessing metabolic costs of toxin resistance in garter snakes(Thamnophis)显示文摘Trait specialization often comes at the expense of original trait function,potentially causing evolutionary tradeoffs that may render specialist populations vulnerable to extinction.However,many specialized adaptations evolve repeatedly,suggesting selection favors specialization in specific environments.Some garter snake(Thamnophis)populations possess specialized mutations in voltage-gated sodium channels that allow them to consume Pacific newts(Taricha)defended by a highly potent neurotoxin(tetrodotoxin).These mutations,however,also decrease protein and muscle function,suggesting garter snakes may suffer evolutionary tradeoffs.We measured a key physiological process,standard metabolic rate(SMR),to investigate whether specialized adaptations in toxin-resistant garter snakes affect baseline energy expenditure.In snakes,skeletal muscles influence metabolism and power ventilation,so inefficiencies of sodium channels in these muscles might impact whole-animal energy expenditure.Further,because sodium channels are membrane-bound proteins,inefficiencies of channel kinetics and performance might be exacerbated at suboptimal temperatures.We measured SMR in 2 species,Thamnophis atratus and Thamnophis sirtalis,that independently evolved tetrodotoxin resistance through unique mutations,providing replicate experiments with distinct underlying genetics and potential physiological costs.Despite our expectations,neither resistance phenotype nor sodium channel genotype affected metabolism and resistant snakes did not perform worse under suboptimal body temperature.Instead,T.atratus and T.sirtalis show nearly identical rates of mass-adjusted energy expenditure at both temperatures,despite differing eco-morphologies,life histories,and distant phylogenetic positions.These findings suggest SMR may be a conserved feature of Thamnophis,and that any organismal tradeoffs may be compensated to retain whole-animal function.Haley A.MONIZ Molly A.RICHARD C.M.GIENGER Chris R.FELDMAN 2022Integrative Zoology2022,17,4:0
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