Báo cáo sinh học: "Genetic parameters of some growth and egg production traits in laying Brown Tsaiya" docx

... of Taiwan Livestock Research Institute (TLRI) started a breeding project of laying ducks in 1984 (Tai, 1985b). The genetic improvement of laying traits in ducks can include ... hs estimates were low, h!+d values were Original article Genetic parameters of some growth and egg production traits in laying Brown Tsaiya (Anas platyry...

Ngày tải lên: 14/08/2014, 20:20

... male in 98.7% of LW and 99.1% of LR litters, precluding the possibility of obtaining a reliable estimation of litter effects for ’sib’ traits. A random sampling of one ... feed intake and rate of feed intake but higher genetic correlations of daily eating time with daily feed intake (r A = 0.44) and rate of feed intake (rp = -0....

Ngày tải lên: 09/08/2014, 18:22

... laying duck. heritability / genetic correlation / animal model / laying duck * Correspondence and reprints Pingel H (1990) Genetics of egg production and reproduction in ... define a selection strategy by selecting for a linear combination of the predicted breeding values of the 4 traits EW40, BW40, NEGG52 and ES40. The optimal linea...

Ngày tải lên: 09/08/2014, 18:22

... (numbers of levels were 14 and 11 in lines A and B respectively) and sex, Ulk a (q, x 1) vector pertaining to random effects of sires and maternal grandsires and u 2k ... situation in which selecting against one of the deformities would allow a decrease in incidence of all the various deformities (and thus an increase in...

Ngày tải lên: 09/08/2014, 18:22

... plant and the traits measured included pH at 20 min (pH 20 ) and 24 h post-mortem (pHu) and colour of the breast and thigh meat. The heritabilities of the rate and the extent of the pH fall in the ... two distinct analyses were carried out, the first one including pH 20 , pHu, L ∗ , a ∗ , b ∗ parameters and the second one C and H parameters. Finally, a specific analys...

Ngày tải lên: 14/08/2014, 13:22

... platele ts, and mainly granulocytes are the sources of more than 90% of circu- lating VEGF-A [30]. In contrast, in an animal model of sepsis VEGF-A levels increased in liver, kidney and heart, and no ... environ- ment (including outpatients) are warranted to check whether levels of these biomarkers obtained in a “real world” setting will be able to capture this increase...

Ngày tải lên: 18/06/2014, 19:20

... Chain Monte Carlo approach. We assumed flat priors for sys- tematic and random effects. The marginal posterior dis- tribution of the trait of interest was obtained using Gibbs sampling. A single ... Genetics and statistical properties of residual feed intake. J Anim Sci 1993, 71:3239-3250. 8. Luiting P: Genetic variation in energy partitioning of laying hens: cause of genet...

Ngày tải lên: 14/08/2014, 13:21

... between healthy and infected halves, assuming 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 ... Breeding and Genomics Centre, Wageningen University, PO Box 338, 6700 AH Wageningen, The Netherlands. 3 The Roslin Institute and Royal (Dick) School of Veterinary Studies, Univer...

Ngày tải lên: 14/08/2014, 13:21

... pertinent information included t he date of milk sampling, number of suckled lambs, date of birth of the ewe and lambing date. Lactation measures of milk composition traits (fat content, protein ... 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...

Ngày tải lên: 14/08/2014, 13:21

... modelling of heterogeneity is based on the hypothesis of the existence of a pool of genes controlling the mean of the performance and another pool of genes controlling the homogeneity of the ... exploratory signs of correlated canalised response were investigated, and the correspond- ing expected consequences of a combined selection with the objective of in- creasing...

Ngày tải lên: 14/08/2014, 13:22