Last, we estimated the time-varying reproductive number of cholera by assuming a fixed generation time throughout the epidemic, which may not reflect reality due to the possibility of differences in care-seeking behavior and differential contraction of generation intervals
between populations with an increasing prevalence of cholera (9).
ZPLAN+ calculates the generation interval
directly from the gene flow-matrix.
Genomics offers the opportunity to considerably decrease the generation interval
by selecting younger parents at all stages.
For example, genetic gains would be higher if the trait under selection has a higher heritability; genetic gains would be lower over the 35-y time frame if an abalone species with a longer generation interval
is considered (Falconer & Mackay 1989).
Estimates of the generation interval
for the four gamete passages, for the whole pedigree of the Mediterranean buffaloes, were 8.
For cattle, this is especially true, thanks to the gains expected from genome wide marker assisted selection (GW-MAS), due to the large generation intervals
and the high costs induced by conventional testing of bulls in the dairy industry.
2] is fixed and the generation interval
, for a given herd, is difficult to change.
i) the instant in time after contact of the polymer at the mold wall, that the flow mark generation interval
The calculation of the proportion of expected infections produced by secondary cases at the time when their corresponding index case is reported (PIR2) is conducted in the same way as that of PIR1, but a 2-generation interval
is used instead of a standard generation interval
The generation interval
(GI) was computed for four selection pathways (sire to son, sire to daughter, dam to son, dam to daughter) according to Falconer and Mackay (1996) definition.
For instance, when the packet generation interval
Despite these advances there is still a need for information about pedigree in order to identify temporal trends and to evaluate inbreeding, confirmation of pedigree, effective size, generation interval
, genetic diversity and several other important population parameters (FARIA et al.
For each breed, a reference population was defined as piglets born from year 2008 to 2009 (two yrs) because the average generation interval
for each breed was close to 2 yr (Duroc: 1.
These probabilities depend on the number of days separating the onset of symptoms on the 2 farms (i and j) and the distance (in kilometers) separating i and j, and the probabilities were extracted from a probability density function of the generation interval
(online Technical Appendix, wwwnc.
Latency and infectious periods can be summed into a single statistic called the generation interval
, which measures the interval between disease onset in 2 successive cases.