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

... B. Hannrup et al.Genetic parameters for spiral grain Original article Genetic parameters for spiral-grain angle in two 19-year-old clonal Norway spruce trials Björn Hannrup a* , Michael ... of the two innermost rings, above 0.8 (table II). The expected correlated response in mean grain angle of rings 3 to 15 following indirect selection for grain angle of the...

Ngày tải lên: 08/08/2014, 14:20

... for egg weight. One value of h2 = 0.34 has been found

Ngày tải lên: 09/08/2014, 18:22

... similar to linear mixed- models equations; indeed, the right hand side of [6] can be expressed as: Original article Genetic parameters of the twisted legs syndrome in broiler ... situation in which selecting against one of the deformities would allow a decrease in incidence of all the various deformities (and thus an increase...

Ngày tải lên: 09/08/2014, 18:22

... alt="" Original article Genetic parameters of feeding behaviour and performance traits in group-housed Large White and French Landrace growing pigs F Labroue R Guéblez P Sellier 1 ... variability of feeding behaviour criteria. The aim of the present study was to estimate genetic parameters of the Large White and French Landrace...

Ngày tải lên: 09/08/2014, 18:22

... Original article Genetic and environmental factors affecting some reproductive traits of Holstein cows in Cuba A Menendez Buxadera L Dempfle 1 Centro de Investigacidn para el ... dairy cows obtained from 1980 to 1988 was studied in order to determine the environmental and genetic factors affecting the reproductive performance of Ho...

Ngày tải lên: 09/08/2014, 18:22

... parameters can be mea- sured: survival rate, lethal dose leading to 50% of dead animals (LD50), internal organ contamination, presence/ absence of Salmonella, Salmonella count, etc. The main infection ... human consumer. In particular, asymp- tomatic carriers have a major role in Salmonella propaga- tion in poultry and hence in food contamination, since they cannot be e...

Ngày tải lên: 14/08/2014, 13:21

... parameters for social effects on survival in cannibalistic layers: Combining survival analysis and a linear animal model Esther D Ellen 1* , Vincent Ducrocq 2 , Bart J Ducro 1 , Roel F Veerkamp 3 , ... to include associative effects in the current software for survival analysis. A solution could be to combine survival analysis and a linear...

Ngày tải lên: 14/08/2014, 13:21

... as: Riggio et al.: Genetic parameters for somatic cell score according to udder infection status in Valle del Belice dairy sheep and impact of imperfect diagnosis of infection. Genetics Selection Evolution ... indicating whether an animal was infected at the time of sampling. Therefore, instead of using mixture models to determine the infect...

Ngày tải lên: 14/08/2014, 13:21

... 10.1051/gse:2002024 Original article Genetic parameters for lactation traits of milking ewes: protein content and composition, fat, somatic cells and individual laboratory cheese yield Med. Houcine O THMANE , ... factors and the genetic parameters for total milk traits (fat content, protei n content, casein content, serum protein content, lac...

Ngày tải lên: 14/08/2014, 13:21

... Bacterial strain Due to the restraints related to the inoculation of a virulent S. abortusovis strain (breeding in a protected environment,full destruction of the carcasses, ), the vaccinal strain of ... during the infection period. The animals with the highest levels of IgM at D0, before Salmonella infection, were the less infected after experimental inocula...

Ngày tải lên: 14/08/2014, 13:22

... correlation (r pe ) for litter size after natural oestrus (LSN) and litter size after induced oestrus (LSI) in the Suffolk and Texel. For the different linear models the Akaike Information Criterion ... litter size in Baluchi sheep using Gibbs sampling, J. Anim. Sci. 77 (1999) 533–540. To access this journal online: www.edpsciences.org Genetic parameters of litter...

Ngày tải lên: 14/08/2014, 13:22

... daily gain. Changes due to selection have been widely reported in mice and estimation of realised heritability for post-weaning gain and realised genetic correlations for post- weaning gain and ... methods for WG: (A) the classic selection, choosing animals according to their perfor- mance and randomly mating selected individuals; (B) weighted selection un- balancing...

Ngày tải lên: 14/08/2014, 13:22

... Original article Genetic and phenotypic relationships between physiological traits and performance test traits in sheep ND Cameron, E Cienfuegos-Rivas AFRC Roslin Institute (Edinburgh), ... fat line, but on fasting the lean line had higher values. Phenotypic correlations between physiological and performance traits Phenotypic correlation...

Ngày tải lên: 14/08/2014, 19:22

... 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 species until ... since the body weight and the growth rate are larger in the Saanen than in the Alpine. Within-breed genetic parameters A review of the liter...

Ngày tải lên: 14/08/2014, 19:23

... 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