Báo cáo sinh học: " A short-term divergent selection for resistance to Teladorsagia circumcincta in Romanov sheep using natural or artificial challenge" pptx

... Chaumeil Natural or artificial infection with T. circumcincta 225 Figure 5. Protocol for assessing resistance to T. circumcincta in artificially and natu- rally infected flocks (INF = artificial infection; ... selection forresistancetoTeladorsagia circumcincta in Romanov sheep using natural or artificial challenge Lucas G a , Jacques B b , Jacquelin...

Ngày tải lên: 14/08/2014, 13:22

... demonstrated that the total extensor cross-sectional area of the forearm was greater in low-line pigs than in high-line pigs. Most of the cross-sectional-area difference was ... the carpal joint. The carpal joint of low-line pigs has been reported to have a smaller resting angle and to have been more difficult to extend than in high-li...

Ngày tải lên: 14/08/2014, 20:20

... (P) was 3.46 for F, 0.85 for M, 3.68 for Dm and 2.59 for H. Table 4 shows the mean (and standard deviation) of fer- tility and hatchability rates for days 2–15 or days 2–8 after a single AI for ... brought about a correlated increase in fertility and hatchability rates according to egg set, especially for days 2–8 after AI, thereby demonstrating the feasibility of sel...

Ngày tải lên: 14/08/2014, 13:21

... direction nor significance. 3.3. Inbreeding of the lines The evolution of the average inbreeding level was similar for the progressor and regressor lines. Inbreeding increased in a linear way of about ... Profile Index, estimated using all data and pedigree information on all lines over 18 generations, was 0. 46 ± 0.03. When estimated in selected lines separately, the analyses gave si...

Ngày tải lên: 14/08/2014, 13:22

... scheme, standard deviations increase when progeny test capacity increases. More males are evaluated on maternal performance and thus the uncertainty in preweaning parameters has a larger ... imply taking into account several points that are unusual in dairy cattle schemes: multistage selection with normal distribution and treating candidates for...

Ngày tải lên: 09/08/2014, 18:21

... of data was constructed to evaluate sampling variances and covariances between preweaning genetic parameters (Phocas et al, 1995). The sampling variance-covariance matrix ... candidates for selection within an age class is not valid. Moreover, the probabilities of origin of each kind of breeding animals (for instance, AI and NS bulls) are ......

Ngày tải lên: 09/08/2014, 18:21

... needs. Availability meant true availability of stores for home sires or potential availability after purchase from another AI (artificial insemination) organization if needed. Here, declared stores ... simulated annealing (ASA) that maximizes a leading function penalized for constraints (see Appendices 1 and 2). In the first step, alternative solutions for the ASA process were obt...

Ngày tải lên: 14/08/2014, 13:21

... microsatellite loci (AGLA17 and SOD1) probably linked to the candidate gene for the polled trait in the populations investig ated. The po lled trait is an autosomal dominant trait in cattle and to date ... the Academy of Finland, the Ministry of Agriculture and Forestry in Finland, the Nordic Gene Bank for Farm Animals (NGH), and the Nordic Council of Ministers. We also thank Ta...

Ngày tải lên: 14/08/2014, 13:21

... important traits of animal species are not normally distributed, such as binary disease resistant traits or ordinal categorical traits. When analyzing such traits, one usually ... estimation. With an animal model, the typical size of a data set could be very large, making factorization of A into Z very expensive. In addition, matrix A is...

Ngày tải lên: 09/08/2014, 18:22

... methods for motif finding (e.g., [15,18]), our combinatorial for- mulation naturally incorporates amino acid substitution Algorithms for Molecular Biology 2006, 1:13 http://www.almob.org/content/1/1/13 Page ... of local multiple alignments. Bioinformatics 2005, 21:i344-i350. 47. Kingsford C, Zaslavsky E, Singh M: A compact mathematical pro- gramming formulation for DNA motif finding...

Ngày tải lên: 12/08/2014, 17:20