Báo cáo sinh học: " Impact of the use of bovine somatotropin (BST) on dairy cattle selection" ppt

... J. Dairy Sci. 67, 1567-1580 Simianer H. & Wollny C. (1989) Impact of the potential use of Bovine Somatotropin (BST) on the efficiency of a conventional dairy cattle ... None of these 3 conditions is met in a BST situation. The impact of BST is not a mere reduction of heritability. As might be anticipated, the bull-d...

Ngày tải lên: 14/08/2014, 20:20

... better understand the mechanism of action of HRSV neutralizing antibodies and the impact of resistance to these antibodies upon the fusion activity of the F protein. A summary of these results is ... formation of mature virion particles [26,28,29]. It is possible that the RNA sequence of this region contains some critical function, and/or that mutations in this regio...

Ngày tải lên: 18/06/2014, 18:20

... observed in the progression of viral pathogenesis or the duration of sur- vival of BALB/c scid mice versus NOD scid mice (Fig. 2B). Flow cytometry demonstrated that approximately one- third of the peripheral ... caveat of the NK cell deple- tion experiments was that control IgG or anti-asialo GM1 had the unanticipated effect of prolonging the survival of HSV-1 infect...

Ngày tải lên: 19/06/2014, 08:20

... lot of the apparent complexity in cell biology is a product of over-expression studies, and loss -of- function data can clarify some of these situations.” “And then we will have to go back to the ... 16% of the genes gave visible phenotypes in at least one of the two cell lines. The group then had to work out a formalized process for dealing with all the information tha...

Ngày tải lên: 06/08/2014, 18:20

... For example, because of such highways of gene sharing these types of analyses group members of the order Thermotogales with the Firmicutes, and the members of the 54.2 Journal of Biology 2009, ... measure of how representative a particular topology of each tree is to the rest of the trees in the Forest of Life. In reconstructing the central tendency in such...

Ngày tải lên: 06/08/2014, 19:20

... frequency and timing of the intervention, duration of the intervention, format of the intervention (e.g., web-based, person-to-person contact), known effectiveness of the intervention for changing ... Hospital; Office of Continuing Education and Professional Development, Faculty of Medicine, University of Toronto, Toronto, Canada Full list of author information is avai...

Ngày tải lên: 10/08/2014, 10:23

... management conditions decreasing incidence of deformations in salmonids also decreased the amount of genetic variation available for selection. Genetic variation for deformations was low or non-existent ... to the two production environments. Second, it is possible that after the splitting, the same families were independently subjected to deformations in both environments. On...

Ngày tải lên: 14/08/2014, 13:22

... than the animal model, because it takes into account the information of the markers; but neither of the two models is able to find the causal mutations. On the contrary, the QTL regression model, ... model used. The main difference between both models concerns the inclusion of the probabilities of the parental origin of the QTL alleles, which is ignored in...

Ngày tải lên: 14/08/2014, 13:21

... studied the impact of various selection orientations (use of cryopreserved semen, conservation of male lines, etc.) only on the male path, because applying the above conditions on the female ... (similar to the one used in the Netherlands), where the semen of all young bulls is stored in the cryobank. In the simulations performed here, we investigated the...

Ngày tải lên: 14/08/2014, 13:21

... Parliament, European Council (2003) Directive 2003/30/EC of the Parliament and of the Council of 8 May 2003 on the promotion of the use of biofuels or other renewable fuels for transport, Brussels ... considerably in the scenarios. Keywords: diet; agriculture; energy. Introduction Agriculture has various impacts on the environment. One of the most ob...

Ngày tải lên: 18/06/2014, 18:20