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 threshold binary trait assuming ... conclusions on the genetic determinism of twinning. Under a major gene simple hypothesis (1 locus with 2 alleles), at least 3 factors interact for determining the...

Ngày tải lên: 14/08/2014, 20:20

... whatever the starting solution given. Since performances were only recorded on the last generation, 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 ass...

Ngày tải lên: 14/08/2014, 13:22

... was placed in another laying house. In both laying houses, the 17- week-old hens were allocated to laying cages, with four birds of the same line and age in a cage. The individuals makingupacagewerecombinedatrandom.Inboth laying ... because the prediction fr om 2STEP refers to the scale of the hazard rate rather than the observed phenotype. For line W1 r 2 = 0.32, for...

Ngày tải lên: 14/08/2014, 13:21

... indicating whether an animal was infected at the time of sampling. Therefore, instead of using mixture models to determine the infection status [1,11], we were able to analyze SCC, and therefore ... components and heritability for the infection status were first estimated using an animal linear model accounting for the same effects included in the model used for SCS. Then, a...

Ngày tải lên: 14/08/2014, 13:21

... being centrifuged for a standard time of 15 min at 2 500 rpm after longitudinal cutting and the whey being removed after draining for 45 min with the test-tube face downward (the curd remained ... was also 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 high...

Ngày tải lên: 14/08/2014, 13:21

... ef- fect, indicating a slower mixing of the chain. Slower mixing of the chain is caused by less information coming from the data. In the case of the covariance between PE-effects, information ... number of samples before crossing the mean value of the chain for the second time. The burn -in samples were removed, leaving a “stationary phase” of the chain for further p...

Ngày tải lên: 14/08/2014, 13:22

... with a within-flock analy- sis, because of the predominant mating system. They generally agreed with the results obtained 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...

Ngày tải lên: 14/08/2014, 19:23

... lexically marked. 1 Introduction It 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 being developed. This is a start on such an undertaking. In lieu of any informative meta-data in the PTB files 1 , I looked at line-level patterns in the 2159 fi...

Ngày tải lên: 30/03/2014, 23:20

... the Bulmer effect [3] at the beginning of the experiment, the inbreeding, the drift or the response variability. Since the mean of the trait increased across generations and the coefficient of variation ... assume that there is a linear association between the additive genetic value affecting the mean and the additive genetic value affecting the environmental variance. Th...

Ngày tải lên: 14/08/2014, 13:22

... grain angle to se - lection for reduced grain inclination of individual rings. This provided 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 th...

Ngày tải lên: 08/08/2014, 14:20