The latter maximizes the productive performance of the offspring, which might be a farmer's interest.
The results show that selection of matings on g ^ instead of u ^ led to 14.8% (milk yield) and 27.8% (protein yield) greater expected total genetic superiorities and maximized expected productive performance of the offspring.
Conversely, for a given offspring production by the focal, the advantage of competing within a population of individuals that are on average less fecund is expected to be greater than the disadvantage of competing in a more productive population.
Numbers of termites were analyzed using GLMMs with Poisson error distribution and log link function, whereas data for reproductive skew (number of offspring produced by more productive or less productive founders) and caste ratio were analyzed with binomial error distribution and logit link function.
Earlier in the weekend, also on The Times's front page, there was this by Jacqueline Mroz about some very, umm, productive sperm donors, and how their offspring are using the Internet to find one another.
That might be the cheerful opening sentence of a warming story of a prosperous farm, a productive herd of animals and generations of offspring rooted in the serenity and solitude of reading the classics in dusty hay mows.
No offspring would be produced and the productive capacity of a female insect would be lost.
My reasons are pretty much the ones Ross Douthat seems to admire: I'd rather be tired and overstretched for a couple of decades, and hand over much of my future happiness as a hostage to my offspring, than go on with my pleasant, otherwise productive autonomy.
Females with extended productive lives would be expected to generate a greater lifetime amount of marketable product (e.g., offspring, milk, etc).
In such systems, milk produced by the dam is the sole source of nutrients for newborn offspring and may influence their survival, growth to weaning, and future productive performance [ 8– 10].
