Results 21 to 30 of about 1,385,080 (304)

A novel association between hemoglobin subunit beta gene and reproductive performance in Awassi ewes

Journal of the Saudi Society of Agricultural Sciences, 2022
This study was performed to assess the polymorphism in the HBB gene and its association with reproductive traits in Awassi ewes. Genomic DNA extracted from 124 and 100 Awassi ewes, respectively, produced single and twins.
Ameer T. Al-Nafie, Tahreer M. Al-Thuwaini, Mohammed Baqur S. Al-Shuhaib   +2 more
doaj   +1 more source

Linking personality traits and reproductive success in common marmoset (Callithrix jacchus) [PDF]

, 2022
Animal personality can affect individual fitness and population growth. Personality traits of either parent or parents’ combination may facilitate reproduction and offspring survival across species. However, previous studies focused mainly on the role of
Buchanan-Smith, Hannah M., Hayley Ash, Hannah M. Buchanan-Smith, Martina Konečná, Ash, Hayley, Konečná, Martina, David Boukal, Buchanan-Smith, Hannah M, Michaela Masilkova, Masilkova, Michaela, Boukal, David   +10 more
core   +1 more source

Host Genetics of Response to Porcine Reproductive and Respiratory Syndrome in Sows: Reproductive Performance

Frontiers in Genetics, 2021
Porcine Reproductive and Respiratory Syndrome (PRRS) is historically the most economically important swine disease worldwide that severely affects the reproductive performance of sows.
Felipe M. W. Hickmann, Felipe M. W. Hickmann, José Braccini Neto, Luke M. Kramer, Yijian Huang, Kent A. Gray, Jack C. M. Dekkers, Leticia P. Sanglard, Nick V. L. Serão   +8 more
doaj   +1 more source

Genetic Relationship of Body Energy and Blood Metabolites with Reproduction in Holstein Cows [PDF]

, 2008
Body condition score (BCS), energy content (EC), cumulative effective energy balance (CEEB), and blood serum concentrations of glucose, beta-hydroxybutyrate (BHBA), and nonesterified fatty acids ( NEFA) were measured throughout first lactation in 497 ...
Arsenos, G., Zygoyiannis, D., Oikonomou, G., Valergakis, G. E., Banos, G., Tsiaras, A.   +5 more
core   +1 more source

Reproductive Traits Associated with Oxygen Consumption

Poultry Science, 1973
Abstract Hen-day production and hatchability of fertile eggs were investigated in high and low oxygen lines previously described by MacLaury and Johnson (Poultry Sci. 51: 591–597, 1972). After significant separation of the lines in 1965 both measures were significantly higher in the high oxygen line.
T H, Johnson, D W, MacLaury
openaire   +2 more sources

Reproductive success and male traits in the spotless starling, Sturnus unicolor [PDF]

, 2009
Selection operates when the variability among individuals in heritable traits translates to differences in the number of offspring that survive to breed, which is a close estimate of fitness. Consequently, the outcome of sexual-selection should be higher
Celis, Patricia
core   +2 more sources

Genetics and genomics of reproductive performance in dairy and beef cattle

Animal, 2014
Excellent reproductive performance in both males and females is fundamental to profitable dairy and beef production systems. In this review we undertook a meta-analysis of genetic parameters for female reproductive performance across 55 dairy studies or ...
D.P. Berry, E. Wall, J.E. Pryce
doaj   +1 more source

Reproductive efficiency and milk yield in Sindhi breed cattle

Brazilian Journal of Veterinary Medicine, 2022
The aim of this study was to identify the average of productive and reproductive traits in Red Sindhi females and evaluate if there is an influence of the reproductive traits on milk yield in this breed. Data related to reproductive and productive traits
Rafaella da Rocha Olivieri de Barros, Raquel Rodrigues Costa Mello, Sabrina Luzia Gregio de Sousa, Kaliane Nascimento de Oliveira, Jorge Carlos Dias de Sousa, Elisa Cristina Modesto, Marco Roberto Bourg de Mello   +6 more
doaj   +1 more source

Sex-limited chromosomes and non-reproductive traits

BMC Biology, 2022
AbstractSex chromosomes are typically viewed as having originated from a pair of autosomes, and differentiated as the sex-limited chromosome (e.g. Y) has degenerated by losing most genes through cessation of recombination. While often thought that degenerated sex-limited chromosomes primarily affect traits involved in sex determination and sex cell ...
Aivars Cīrulis, Bengt Hansson, Jessica K. Abbott   +2 more
openaire   +3 more sources

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