搜索结果: 1-15 共查到“遗传学 genetic”相关记录96条 . 查询时间(0.18 秒)
Imagine a ball thrown in the air: It curves up, then down, tracing an arc to a point on the ground some distance away. The path of the ball can be described with a simple mathematical equation, and if...
Toxic tiger rattlesnake venom advances genetic science techniques（图）
Toxic tiger rattlesnake venom advances genetic science techniques
2021/1/28
The tiger rattlesnake possesses the simplest, yet most toxic, venom of any rattlesnake species. Now new research led by a University of South Florida biologist explains the genetics behind t...
Genetic redundancy aids competition among symbiotic bacteria in squid（图）
Genetic redundancy aids competition symbiotic bacteria squid
2019/10/21
The molecular mechanism used by many bacteria to kill neighboring cells has redundancy built into its genetic makeup, which could allow for the mechanism to be expressed in different environments, say...
Demographic structure and genetic diversity of the endangered Bísaro pig: Evolution and current status
conservation genetic variation inbreeding pedigree analysis swine
2018/11/23
Bísaro pig, a local endangered swine breed, has gained popularity in the recent years. A complete pedigree was used to evaluate the population structure and investigate the current breed’s genetic var...
Genetic evaluation of clinical mastitis traits in Holstein cattle
udder health mastitis resistance genetic parameters genetic trend
2018/11/23
The results obtained from different models for predicting breeding values for clinical mastitis (CM) in Holstein cattle were compared. CM was recorded in 30 882 lactations of 12 793 cows in 8 herds fr...
Genetic differences in eggshell ultrastructural properties of Saudi native chicken breeds kept at high ambient temperatures
eggshell strength egg quality mammilliary layer total score
2018/11/23
Egg quality and eggshell ultrastructural properties of four Saudi native chicken breeds were compared to detect genetic differences. A total of 480 laying hens at 28 weeks of age, representing four Sa...
Evaluation of gestation length and birth weight of offspring of Polish native cattle breeds in context of estimating genetic parameters
pregnancy birth body weight heritability native breed
2018/11/23
Research material included data on gestation length of 15 436 cows of Polish native breeds. These were: White Backed (BG; 324 records), Polish Red (RP; 5396 records), Polish Black and White (ZB; 3508 ...
Estimation of genetic parameters of fatty acids composition in flesh of market size common carp (Cyprinus carpio L.) and their relation to performance traits revealed that selective breeding can indirectly affect flesh quality
genetic correlations genetic improvement growth heritability slaughtering traits, supplemental feeding
2018/11/23
Fish are a rich source of omega-3 polyunsaturated fatty acids (n-3 PUFAs) and thus, they should be an integral part of human diet at least twice a week. As a result, high attention has been devoted to...
Genetic analysis of the Hungarian population of endangered Hucul horses
genetic diversity pedigree analysis genetic protection endangered breed
2018/11/23
The population genetic evaluation of the Hungarian Hucul horse population was performed based on pedigree records. Herd book data of registered Hucul horses available up to 2016 were analysed using EN...
Bayesian inference of genetic parameters for reproductive and performance traits in White Leghorn hens
egg production fertility genetic correlation hatchability heritability
2018/11/23
This study estimated the genetic parameters for reproductive and performance traits and determined which ones can be used as selection criteria for egg production in laying hens using the Bayesian inf...
Genetic evaluation of growth traits in Nellore cattle through multi-trait and random regression models
body weight genetic parameters growth curves
2018/11/23
We aimed to evaluate different orders of fixed and random effects in random regression models (RRM) based on Legendre orthogonal polynomials as well as to verify the feasibility of these models to des...
Evaluation of genetic variability of the breed Norik of Muran according to pedigree information
draught horse interbreeding local breed gene origin
2018/11/23
The Norik of Muran, a unique draught horse bred in Slovakia, belongs to country’s biodiversity treasures. The genetic diversity of this horse type was evaluated on the basis of indicators derived from...
Genetic Diversity and Admixture in Three Native Draught Horse Breeds Assessed Using Microsatellite Markers
population structure endangered breeds gene flow genetic distances
2018/3/5
In this study, we aimed to estimate and compare genetic diversity of two native draught horse breeds and check
the possible influence of Noriker breed population on these native breeds. Genetic analy...
Ethnic and genetic factors of iron status in women of reproductive age
breastfeeding ethnicity genetic factors hemochromatosis iron overload iron status pregnancy women of reproductive age
2018/11/21
Background: African Americans are at increased risk of iron deficiency (ID) but also have higher serum ferritin (SF) concentrations than those of the general population. The Hemochromatosis and Iron O...
Mediation and modification of genetic susceptibility to obesity by eating behaviors
eating behavior genetic risk score genetics obesity BMI body mass index dieting
2018/11/19
Background: Many genetic variants show highly robust associations with body mass index (BMI). However, the mechanisms through which genetic susceptibility to obesity operates are not well understood. ...