A better understanding of LcMSTN-1 variability will allow selection of appropriate brood-stocks in an experimental MSTN-based selective breeding program.
We selected pairs of broods with the same hatching date and a similar brood size (±1 chick).
The direction of selection on a brood year-specific L50 was the sign of the difference between the brood year-specific optimal maturation threshold and the observed L50: where Lm was the optimal maturation threshold.
To avoid confounding brood survival with fledging time, the two broods that were still alive at day 20 were right-censored in all analyses of brood survival (broods can fledge at 21 days, range 21 25; F. Bonier unpublished).
For instance, in domestic poultry (Gallus gallus) and pigs (Sus scrofa) that have a history of artificial selection for increased brood size, genetic correlations between brood size, and survival are generally negative (e.g., Hogsett and Nordskog 1958; Emsley et al. 1977; Lund et al. 2002).
Bailey was occasionally a little too adventurous for her own good, as on a selection of traditional spirituals with a brooding male choir arranged by Alec Wilder -- pretty heavy going.
However, further study, especially of the level of brood and queen exchange between nests, is needed to establish if the conditions for nest-level selection are being met by polydomous colonies.
And he would sort of brood.
They've been part of Brood II ever since.
The incidence of brood parasitism is uncertain.
