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Simultaneous estimation of genetic parameters for production and litter size traits in Czech Large White and Czech Landrace pigs
total number of piglets born number of piglets weaned lean meat content average daily gain heritability genetic correlation REML
2015/6/24
Genetic parameters for total number of piglets born per litter, number of piglets weaned per litter, lean meat content, and average daily gain from birth till the end of the field test were estimated ...
Association analysis of seven candidate genes with performance traits in Czech Large White pigs
pig genotyping SNP performance trait estimated breeding value (EBV) Czech Large White
2015/6/9
In this study association analyses were performed between genes tagged SNP (IGF2, NAMPT, DGAT1, MYF4, MC3R, MC4R and MYOD1), performance traits (backfat thickness, lean meat content, average daily gai...
The pattern of development for gene expression of sterol regulatory element binding transcription factor 1 in pigs
SREBF1 gene expression fat deposition pig
2015/6/2
Sterol regulatory element-binding transcription factor 1 (SREBF1) has been implicated as a key regulator of adipocyte differentiation and lipid metabolism. The pattern of SREBF1 gene expression in dif...
Intermediately virulent Rhodococcus equi isolates from pigs in Slovenia: discovery of new plasmid types and assessment of genetic diversity by pulsed-field gel electrophoresis
genotyping molecular epidemiology restriction enzyme analysis
2015/4/2
The presence of large plasmids in 30 Rhodococcus equi strains isolated from pig lymph nodes with granulomatous changes was investigated. Plasmid DNAs were isolated and digested with the restriction en...
Genotype by environment interaction for carcass traits and intramuscular fat content in heavy Iberian pigs fattened in two different free-range systems
premium cuts intramuscular fat breeding values economic values
2014/10/24
Genotype by environment interaction (G×E) is a potential source of reduced efficiency in genetic improvement programs in livestock. The objective of the current work consisted of checking the existenc...
摘要应用RAPD技术分析了梅山猪、淮南猪、通城猪、八眉猪、合作猪、大白猪的遗传变异。用276个随机引物对6个猪种混合DNA扩增筛选，24个引物产生多态性。此24个引物经重新优化反应条件体系后，对276个个体DNA进行扩增。结果6个猪种的遗传多样性指数分别为0.178672、0.17781、0.15995、0.14549、0.16949和0.14157,群体内平均遗传多样性指数为0.16216，总群...
摘要
为了寻找影响猪重要胴体性状主基因在染色体的位置，我们以大白猪和梅山猪为父母本建立了F2资源家系。随机选留81头F2代个体，经屠宰获得猪胴体性状数据。结合家系个体的48个微卫星标记基因型，用线性模型最小二乘法对各胴体性状进行数量性状基因座（QTL）的区间定位。定位结果表明位于猪染色体（SSC）4号的瘦肉率和瘦肉量QTL达到基因组极显著水平；SSC1、2和4上眼肌面积QTL达到染色体显著水平；...
猪的雌雄连锁图谱的比较研究Comparison between the Female- and Male-linkage Maps in Pigs
猪 微卫星 雌性连锁图谱 雄性连锁图谱
2008/1/8
摘要
用统计的方法，对以一个商品猪群为参考家系，采用163个微卫星标记和3个I-型分子标记（RYR1、PRKAG3、PIT1）构建的猪常染色体雌、雄连锁图谱的长度进行了比较。结果表明，常染色体的雌性连锁图谱的总长度为2625.9 cM，雄性连锁图谱的总长度为2259.7 cM，二者比率为1.16 ：1；除了1号和14号染色体以外，其余染色体的雌性连锁图谱的长度均比雄性连锁图谱长。1、3、5、6、...
含不同比例莱芜猪血缘杂交猪胴体品质及肉质特性的研究Studies on Carcass and Meat Quality Performance of Crossbred Pigs withGraded Proportions of Laiwu Black Genes
猪 莱芜猪 杂交 胴体品质 肉质特性
2008/1/6
摘 要： 以莱芜猪、3/4莱芜猪、1/2莱芜猪、1/4莱芜猪和大约克夏猪（共60头）为研究对象，在同样条件下饲养至90kg屠宰，研究比较不同比例莱芜猪血缘对肥育猪胴体品质和肉质特性的影响。结果表明：不同血缘结构的试验猪间在胴体重、胴体长、后腿比例和背膘厚方面存在显著的差异（P<0.05）；眼肌面积和瘦肉率方面则存在极显著的差异（P<0.01），并且是随莱芜猪血缘含量的减少，其胴体长、后腿比例、眼肌...
五种品系猪亲缘关系的RAPD分析Analysis on Phylogenetic Relationship and Selection of Polymorphic Primers to Five Breeds of Pigs by RAPD of 190 Arbitrary Primers
随机扩增多态DNA 小型猪 亲缘关系
2007/12/7
摘要应用190个RAPD引物对贵州小型猪,巴马小型猪、西双版纳近交系小耳猪JB和JS亚系、荣昌猪Ⅰ系、长白猪的亲缘关系进行了初步分析,其中39个引物的扩增结果具有非常明显的品系间多态性,将其扩增结果以RAPDistance package Version 1?04程序进行分析,计算相对遗传距离指数1－F,再用NJ法进行聚类分析,构建系统树。结果表明,三种小型猪相互间亲缘关系较近,尤以贵州小型猪与巴...