Báo cáo sinh học: " The pattern of genetic and environmental variation in relation to ageing in laying hens" ppt

... in the En line than in the Ew line. However, no such pattern was found for egg number or egg weight in the 2 lines investigated. Original article The pattern of genetic and ... variation as well as in environmental variation with age. The results support the mutation accumulation theory of ageing and other theories which...

Ngày tải lên: 14/08/2014, 20:20

... selection candidates but can vary depen ding on the number of relatives in train- ing and the degree of additive -genetic relationships with training individuals (Figure 3 and 4). The impact of additive -genetic ... for training bulls and denoted as scenario a max =1. Tostudytheeffectofthesizeofthetrainingdataon accuracy at different a max values, training data sets were...

Ngày tải lên: 14/08/2014, 13:21

... monitoring and evaluation) and the same proportion was involved in AFP surveillance. On the other hand, in Zambia, nurses and midwives were involved in the full range of functions for SIAs and ... preven- tion of diseases; caring for, supporting and comforting cli- ents; continuously assessing and monitoring health needs and responses to interventions; advocacy...

Ngày tải lên: 18/06/2014, 17:20

... span between males and females is hindered by our lack of understanding of the basic mechanisms of aging and underlying causes of mortality. Life span appears to be limited by the accumulation of irreversible ... study included an elegant control for maternal effects, in that animals with varying amounts of inbreeding had mothers of the same genotype, thus separati...

Ngày tải lên: 06/08/2014, 19:20

... mixoploid according to the method developed by Berg and Brem (1991). After 10 min the pellet of COCs was removed from the bottom of the cylinder and transferred to the collecting ... - The present work describes a cytogenetic study of early bovine embryos (two to sixteen blastomeres) produced in vitro to determine the proporti...

Ngày tải lên: 09/08/2014, 18:22

... the relationship by using other models, the equations shown in figures 6-8 allow us to explain over 80% (see table V) of the vari- ation within the data. The remaining ... data) compared to more passive pollinator types (ie, paintbrushes and misting pollinators). It should be possible, then, to influence the proportion of applied male...

Ngày tải lên: 08/08/2014, 23:22

... wherein providers become aware of the guideline, agree with the guideline, decide to adopt the practices, and adhere to the guideline as appro- priate [9]. Therefore, rather than solely target the ... strate- gies involve changes in the task context relevant to a spe- cific set of CPGs. They seek to minimize contextual barriers to the adoption of CPGs and...

Ngày tải lên: 11/08/2014, 05:21

... activity of m otoneurones of muscles acting at the same joint or at different joints. Several studies have linked the malfunction of these pathways to motor deficits on the paretic side of stroke individuals. ... coactivation of knee and ankle extensors is related to transmission changes in spinal pathways and clinical scores of motor function in chronic hemipare...

Ngày tải lên: 19/06/2014, 08:20

... notable. By increasing the coefficient of variation by a factor of 2.4 the rate of inbreeding increased by 14% (Models 2 and 3). The rate of inbreeding obtained when the number ... The decrease in inbreeding rates was due to decreased variances of family sizes. The increase in frequency of flushing also led to a decrease...

Ngày tải lên: 09/08/2014, 18:22

... approximate method to compute the marginal contribution (p k) of each ancestor and to find the smallest set of ancestors. The ancestors contributing the most to the population ... probabilities of gene origin but accounting for bottlenecks in the pedigree; and (3) to compare these three methods to each other and to the class...

Ngày tải lên: 09/08/2014, 18:22