Sentence examples for fertility value from inspiring English sources

If the base fertility value for the jth age group is f j, then the Sykes transformed fertility value, F j, is {F}_j={f}_j;exp left 5 rjright) (1 where the time interval is 5 years and r is the intrinsic annual rate of natural increase associated with the F j. Index j reflects the sequence of the 5-year age groups, with j = 1 for ages 0 4, j = 2 for ages 5 9, and so on.

Indeed, the lack of predictive fertility value of many proposed sperm quality parameters may be due to the fact that a mixed population of functional and non-functional spermatozoa is almost always considered.

Soils on upland benches formed in limestones have soil fertility values that are comparable to fertile floodplain soils.

In each base pattern, the sum of the fertility values is one.

In this study, the wide ranges of values and skewed distributions indicated that more meaningful estimates of K status could be made if a population distribution of K fertility values was described using individual samples.

To facilitate the analytical model, the base age-specific fertility rates were adjusted to the desired NRR by a Sykes transformation (Sykes 1973), an approach that was also employed to adjust fertility values in the Coale and Trussell (1974) model fertility schedules.

The standard cohort-component approach to population projection advances an initial population using a Leslie matrix, i.e., a projection matrix that has fertility values in its first row and survival probabilities on its subdiagonal (Preston et al. 2001, Chap. 6).

However, on average, first litter latencies and other fertility values in the null mice were not significantly different from the controls.

It is shown that the benefit obtained selecting replacement ewes by prepubertal AMH would be higher for intermediate than for either high or low flock fertility values.

c) Cumulated fertility schedule for a period φ(i): φ i = ∑ k = 0 i f k d) Average parity equivalents for a period (F i)): F i) are computed by interpolation using the period fertility rates f(i) and the cumulated fertility values φ(i).

As PPV (as well as NPV) depends on the prevalence of the character in the population [ 18] (herein, the overall flock fertility), PPV for assumed flock fertility values at first mating from 5 to 95% has been depicted in Figure 3.