The objective of this study was to investigate the effect genetic merit national Irish maternal index and genotype (i.e. beef vs. × dairy [BDX]) cows subsequent performance their progeny. With exception that high produced 0.57 kg more milk tended have 0.04 a lower body condition score (BCS), no significant differences were observed between diverse merit. Differences contrasting cow apparent. Be...

BACKGROUND Maternal effects on progeny traits are common and these can profoundly alter progeny life history. Maternal effects can be adaptive, representing attempts to appropriately match offspring phenotype to the expected environment and are often mediated via trade-offs between progeny number and quality. Here we have investigated the effect of maternal food availability on progeny life his...

Context Commercial beef and sheep producers have adopted using condition score for management of cows ewes to maximise productivity. Significant premiums are being paid bulls rams with higher-fat breeding values based on young animal measurements, the aim increased resilience in adult female progeny. Aims The this study was quantify relationship between body muscle fat also genetic variation th...

Clinical manifestation of the disease caused by chicken anaemia virus (CAV) occurs when chicks are vertically contaminated or before second week life. CAV control is based on vaccination broiler breeders in order to promote progeny protection through maternal antibodies. This work aims evaluate, under field conditions, antibody title commercial at 28, 48, and 68 weeks age, rate transference pro...

We assessed genetic factors on progeny dispersal due to sire color morph genotypes in a field pedigree and lab crosses, and we measured maternal effects by studying both natural and experimentally induced egg size variation. Progeny were released into nature upon hatching, but we recorded dispersal distance at maturity, which reflects effective dispersal after viability selection has run its co...

background: the potential hazards of exposure to radiation from radon have been of great concern worldwide, as it is associated with an increased risk of lung cancer. radon (222rn) and its progeny are the main sources of radioactivity in the environment. the half-life of 222rn (3.82 days) is long enough for it to diffuse into and build up in homes. 220rn or thoron from the 232th series, and 219...