Optimizing sampling strategies for sib test schemes in a broiler breeder program

In broiler breeding there is a known genotype by environment interaction for bodyweight measured in a bio-secure (BWB) or in a commercial environment (BWC), thus a sib test scheme to record and use BWC records is beneficial. This study estimated a genetic correlation of 0.59 between BWB and BWC. To optimize the sib scheme, different genotype proportions (25, 50, 75%) and sampling strategies were studied. No pedigree information was available for birds in the commercial environment unless they were genotyped. Genotyping based on phenotypes, heaviest and lightest, resulted in the highest accuracy compared to random genotyping 0.88 vs 0.80 at 25%, 0.94 vs 0.89 for 50 and 0.97 vs 0.95 at 75% genotyped. No bias was observed with random sampling, however bias was detected with sampling based on phenotypes (0.58 at 25%, 0.76 at 50 and 0.91 at 75%)

Transformation through a Mirror: Moses in 2 Cor. 3.18

The odd juxtaposition of beholding God in a mirror and transformation in 2 Cor. 3.18 has incited many commentators to grasp for some parallel from Greek magic (R. Reitzenstein), catoptromantic ritual (H. Achelis), Dionysian mysteries (C. Wagner), Wisdom traditions (M. Thrall), Jewish hydromancy (J. Scott), ‘vision mysticism’ (A. DeConick), or Greco-Roman mythology (A. Weissenrieder). All of these proposals, it is contended, fail to note the key importance of Moses in 2 Cor. 3. Ancient Jewish exegetical traditions based on Num. 12.6-8 portray Moses seeing God through a mirror on Mt Sinai (Lev. Rabb. 1.14; Philo, Leg. All. 3.99-101). Although most commentators note an allusion to Moses in another famous Pauline reference to a mirror (1 Cor. 13.12), the allusion to the Mosaic mirror in 2 Cor. 3.18 has not been explored. Using the Mosaic mirror traditions, this article argues that Paul knew and used Mosaic mirror vision as the model for Christian catoptric seeing in 2 Cor. 3.18. The Mosaic model indicates that the Christian vision through a mirror was thought of as both clear and involving a Mosaic-like metamorphosis into glory (Exod. 34.29-35)