Results 51 to 60 of about 2,104,193 (346)

Resilience effects of SGK1 and TAP1 DNA markers during PRRSV outbreaks in reproductive sows [PDF]

, 2020
The porcine reproductive and respiratory syndrome virus (PRRSV) is a major infectious stressor that causes serious health problems and productivity drops. Based on previous genome-wide analyses, we selected SGK1 and TAP1 as candidate genes for resilience,
Estany Illa, Joan, Fraile Sauce, Lorenzo José, Laplana Lafaja, Marina, Pena i Subirà, Ramona Natacha   +3 more
core   +1 more source

Effects of selection for honey bee worker reproduction on foraging traits.

PLoS Biology, 2008
The "reproductive ground plan" hypothesis (RGPH) proposes that reproductive division of labour in social insects had its antecedents in the ancient gene regulatory networks that evolved to regulate the foraging and reproductive phases of their solitary ...
Benjamin P Oldroyd, Madeleine Beekman
doaj   +1 more source

Comparing and contrasting development and reproductive strategies in the pupal hyperparasitoids Lysibia nana and Gelis agilis (Hymenoptera: Ichneumonidae) [PDF]

, 2007
In most animals, the optimal phenotype is determined by trade-offs in life-history traits. Here, I compare development and reproductive strategies in two species of solitary secondary hyperparasitoids, Lysibia nana and Gelis agilis, attacking pre-pupae ...
Harvey, J.A.
core   +3 more sources

Aging and Senescence across Reproductive Traits and Survival in Superb Fairy-Wrens (Malurus cyaneus)

American Naturalist, 2019
Why do senescence rates of fitness-related traits often vary dramatically? By considering the full aging trajectories of multiple traits, we can better understand how a species’ life history shapes the evolution of senescence within a population.
Eve B. Cooper, Timothée Bonnet, Helen L. Osmond, A. Cockburn, L. Kruuk   +4 more
semanticscholar   +1 more source

Early maternal experience shapes offspring performance in the wild [PDF]

, 2013
Both the environments experienced by a mother as a juvenile and an adult can affect her investment in offspring. However, the implications of these maternal legacies, both juvenile and adult, for offspring fitness in natural populations are unclear.
Armstrong, J.D., Burton, T., McKelvey, S., Metcalfe, N.B., Stewart, D.C.   +4 more
core   +1 more source

Comparison of genomic predictions for carcass and reproduction traits in Berkshire, Duroc and Yorkshire populations in Korea [PDF]

Asian-Australasian Journal of Animal Sciences, 2019
Objective A genome-based best linear unbiased prediction (GBLUP) method was applied to evaluate accuracies of genomic estimated breeding value (GEBV) of carcass and reproductive traits in Berkshire, Duroc and Yorkshire populations in Korean swine ...
Asif Iqbal, Tae-Jeong Choi, You-Sam Kim, Yun-Mi Lee, M. Zahangir Alam, Jong-Hyun Jung, Ho-Sung Choe, Jong-Joo Kim   +7 more
doaj   +1 more source

Genome‐wide association study for reproductive traits in a Large White pig population

Animal Genetics, 2018
Summary Using the PorcineSNP80 BeadChip, we performed a genome‐wide association study for seven reproductive traits, including total number born, number born alive, litter birth weight, average birth weight, gestation length, age at first service and age
Y. Wang, X. Ding, Z. Tan, K. Xing, T. Yang, Y. Pan, Y. Wang, S. Mi, D. Sun, C. Wang   +9 more
semanticscholar   +1 more source

Reproductive traits of pigs of Mangalitsa breed

Acta agriculturae Slovenica. Suplement, 2013
The aim of this study was to investigate the reproductive traits of sows of Swallow Belly Mangalitsa breed. The study was conducted in two herds (Herd 1 and 2) in which the pigs were grown in extensive conditions. The analysis covered reproductive characteristics of 53 sows in the first four parities (n = 129 litters).
Petrović, Milica, Savić, Radomir, Parunović, Nenad, Radojković, Dragan, Čedomir Radović   +4 more
openaire   +1 more source

Event-time analysis of reproductive traits in dairy heifers

Journal of Dairy Science, 1998
Data on the reproductive traits of dairy heifers were analyzed using event-time techniques. Traits analyzed were age at first calving (n = 4631), days to first breeding, and days open (n = 1992) during the first lactation. A proportional hazard model was used that included fixed effects of herd-year, year-season, breed type, herd weight, and heifer ...
Vargas, B., van der Lende, T., Baaijen, M., van Arendonk, J.A.M.   +3 more
openaire   +5 more sources

Estimation of genetic parameters and genetic trends for growth, reproductive, and survival traits of Bonga sheep using multi-variate animal model.

PLoS ONE
The community-based breeding program was introduced to enhance the productivity of Bonga sheep. Data evaluating animals' potential regarding key traits was gathered from 2009-2021.
Metsafe Mamiru, Aberra Melesse, Aynalem Haile, Tesfaye Getachew   +3 more
doaj   +1 more source