Báo cáo sinh học: " Genetic analysis of twinning rate in Israeli Holstein cattle" pptx

... to the genetics of twinning in dairy cattle. In cattle, twinning may have both desirable and undesirable effects. The major contribution of twinning would be an increased calf ... appropriate for analyzing twinning rate. Observations of cows with an exceptional rate of twinning and of sires with an exceptional prepotency for twinning...

Ngày tải lên: 14/08/2014, 20:20

... significance. 3.3. Inbreeding of the lines The evolution of the average inbreeding level was similar for the progressor and regressor lines. Inbreeding increased in a linear way of about +3.51% ... within separate sublines, the estimated breeding values for the TPI were averaged per subline as well. In the regressor line, there were no large changes in the rank- ing of the sublin...

Ngày tải lên: 14/08/2014, 13:22

... [9]]. These two clusters of strains were clearly separated from the major cluster of SEOV strains including R. rattus-associ- ated strain Gou originated from Zhejiang (China) [24]. This result ... screening of rodents. ÅL participated in the study coordination and drafting the manuscript. YS par- ticipated in the study coordination and trapping and screening of rodents. HH partici...

Ngày tải lên: 20/06/2014, 01:20

... combining ovulation rate and embryonic survival, especially as genetic correlation decreased. creased more in Lacaune than in Merino. Direct selection for LS in Merino induced no ... ways of combining OR and ES performance. In b-ORLS, a direct estimation of the breeding values for LS is obtained, whereas in t-ORES the estimated breeding...

Ngày tải lên: 09/08/2014, 18:21

... restreinte INTRODUCTION Hypothesis testing of genetic parameters is of great concern when analyzing genotype x environment interaction experiments. For instance, Visscher (1992) investigated ... w1 h2 2" alt ="" likelihood ratio test of the reduced model (H o: homogeneity of genetic and intra- class correlations between environments) against the...

Ngày tải lên: 09/08/2014, 18:21

... problem of testing homo- geneity of intra-class correlations among environments in the case of univariate linear models, without making any assumption about the genetic correlation ... extensively used in factor analysis of psychological data (Lawley and Maxwell, 1963). Original article Genetic variation of traits measured in several envi...

Ngày tải lên: 09/08/2014, 18:21

... pathways in order to double mass while maintaining the same cell size distribution after cell division? In proliferating cells, with increasing growth rates, in addition to coordinating the length of ... decrease in levels of glutamate. Instead, there was a corresponding trend in the increase in the transcript and protein levels of the mitochondrial 2-oxoglutarate transporte...

Ngày tải lên: 06/08/2014, 18:21

... different origin. The data were collected from a single herd and comprised 7 718 individuals in line B and 9 391 in line R, the lines having 12 and 9 generations of selection ... we did

Ngày tải lên: 14/08/2014, 20:20

... The figures in the table clearly illustrate how increasing the amount of information in the data modifies

Ngày tải lên: 09/08/2014, 18:21

... of D simulans and D sechellia were established by mixing isofemale lines collected in the Seychelles in 1985. Interspecific hybrids were produced by crossing females of ... 1989). The number of loci that are modified during the speciation process remains a subject of debate (Coyne, 1992). In the case of D sechellia adapting to morinda,...

Ngày tải lên: 09/08/2014, 18:22