Báo cáo sinh học: "Genetic parameters for twinning in the Maine-Anjou breed" pot

... parameters and bull transmitting abilities were estimated for twinning in the Maine-Anjou breed. Twin calving performance was analyzed as a thresholdbinary trait assuming ... conclusionson the genetic determinism of twinning. Under a major gene simple hypothesis(1 locus with 2 alleles), at least 3 factors interact for determining the shape of the distribution ... be used in order to reject the polygenic hypothesis (Le Roy, 1989).Foulley et al (1990; unpublished mimeo) proposed a selection program for twinning in the Maine-Anjou...

Báo cáo sinh học: " Genetic parameters for resistance to the Salmonella abortusovis vaccinal strain Rv6 in sheep" ppt

... whatever the starting solution given. Since performances were only recorded on the lastgeneration, we tested the effect of the pedigree information on the quality of the estimation of the maternal ... vaccination was always performed on the left side). The genetic parameters for the bacterial count in the spleen (Log-BgS),estimated with the VCE software and assuming the normality of the distribution,may ... Bacterial strainDue to the restraints related to the inoculation of a virulent S. abortusovisstrain (breeding in a protected environment,full destruction of the carcasses, ), the vaccinal strain of...

Báo cáo sinh học: " Genetic parameters for social effects on survival in cannibalistic layers: Combining survival analysis and a linear animal model" pdf

... was placed in another laying house. In both laying houses, the 17-week-old hens were allocated to laying cages, with fourbirds of the same line and age in a cage. The individualsmakingupacagewerecombinedatrandom.Inbothlaying ... because the prediction fr om 2STEPrefers to the scale of the hazard rate rather than the observed phenotype. For line W1r2= 0.32, for lineWBr2=0.37,andforlineWFr2=0.17,whenusing the genetic ... because the transfor-mation is non-linear. Therefore, the predicted pheno-types using 2ST EP are on the hazard rate scale, whereas the predicted phenotypes using LAM are on the observed scale for...

Báo cáo sinh học: "Genetic parameters for somatic cell score according to udder infection status in Valle del Belice dairy sheep and impact of imperfect diagnosis of infection" pptx

... indicating whether an animal wasinfected at the time of sampling. Therefore, instead ofusing mixture models to determine the infection status[1,11], we were able to analyze SCC, and therefore ... components and heritability for the infectionstatus were first estimated using an animal linear modelaccounting for the same effects included in the modelused for SCS. Then, a threshold animal ... independence(i.e. infection in one half, which results in an increase in SCC, does not increase SCC in the other half). If Se was in fact less than perfect, this wo uld only have slightlyinfluencedthetruedifference(delta)betweenthetwopopulations;...

Báo cáo sinh học: "Genetic parameters for lactation traits of milking ewes: protein content and composition, fat, somatic cells and individual laboratory cheese yield" ppt

... being centrifuged for astandard time of 15 min at 2 500 rpm after longitudinal cutting and the wheybeing removed after draining for 45 min with the test-tube face downward (the curd remained ... wasalso the least rich in fat, protein, casein and serum protein contents. As the ewes became older, there was an increase in fat and protein contents and the milk yield was higher. Accordingly, the ... were found for casein and serum protein contents nor their genetic relationships with othermilk traits. The estimation of genetic parameters for casein content would help in re-examining the selection...

Báo cáo sinh học: " Genetic parameters for litter size in sheep: natural versus hormone-induced oestrus" pptx

... ef-fect, indicating a slower mixing of the chain. Slower mixing of the chain iscaused by less information coming from the data. In the case of the covariancebetween PE-eﬀects, information ... number of samples before crossing the mean valueof the chain for the second time. The burn -in samples were removed, leaving a“stationary phase” of the chain for further processing. Serial correlations ... higher values in the Suﬀolkbreed and for LSI.Rescaling of the estimates to the underlying scale in ates the values for the heritabilities to values in the range of 0.13 to 0.17. The fraction...

Báo cáo sinh học: " Genetic parameters for first lactation dairy traits in the Alpine and Saanen goat breeds" docx

... with a within-flock analy-sis, because of the predominant mating system. They generally agreed with the resultsobtained in the other species, in particular in the dairy ... (JE2; ! P the vector of the fixed effects of the year-flock, the year-month, the age at kidding, the birth type (defined as above), the genotype of the dam (Alpine, Saanen ... whichconstitutes a preliminary step for a successful selection for protein, especially since the literature for protein traits has been very sparse in the dairy goat, and in all dairy...

Báo cáo khoa học: "Genre distinctions for Discourse in the Penn TreeBank" pot

... lexically marked.1 IntroductionIt is well-known that texts differ from each other in a variety of ways, including their topic, the read-ing level of their intended audience, and their in- tended purpose ... tools are beingdeveloped.This is a start on such an undertaking. In lieuof any informative meta-data in the PTB ﬁles1, Ilooked at line-level patterns in the 2159 ﬁles thatmake up the Penn ... property is notdiscussed further here, but is worth investigating in the future.)With respect to explicit intra-sentential con-nectives, the main point of interest in Figure 4is that SUMMARIES...

Báo cáo sinh học: " Genetic parameters related to environmental variability of weight traits in a selection experiment for weight gain in mice; signs of correlated canalised response" pot

... the Bulmer effect [3] at the beginning of the experiment, the inbreeding, the drift or the response variability. Since the mean of the traitincreased across generations and the coefficient of variation ... assumethat there is a linear association between the additive genetic value affecting the mean and the additive genetic value affecting the environmental variance.Therefore, the boxplot for posterior ... itresults in a loss of expected selection response. The modelling of heterogeneity is based on the hypothesis of the existenceof a pool of genes controlling the mean of the performance and another...

Báo cáo khao học: "Genetic parameters for spiral-grain angle in two 19-year-old clonal Norway spruce trials" potx

... grain angle to se-lection for reduced grain inclination of individual rings. Thisprovided an indication of the most efficient age to select for decreasing the average grain spirality of the ... variance into additive and dominance variance.However, in the only published study reporting genetic pa-rameters for spiral grain in Norway spruce, the results indi-cated that the dominating ... throughout the ra-dius (figure 3). Two clones had high grain angles in the ringinterval from 5 to 10. A selection for low grain angle in the ju-venile wood may therefore decrease the proportion...

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