搜索结果: 1-12 共查到“农学 Reproductive Traits”相关记录12条 . 查询时间(0.099 秒)
Estimation of genetic parameters for reproductive traits in Mehraban sheep
heritability genetic correlation
2015/7/7
Studied traits were litter size at birth (LSB), litter size at weaning (LSW), litter mean weight per lamb born
(LMWLB), litter mean weight per lamb weaned (LMWLW), total litter weight at birth (TLWB...
Genetic effects of melatonin receptor genes on chicken reproductive traits
MTNR1A MTNR1B MTNR1C polymorphism egg production traits
2015/6/24
The melatonin receptors are G protein-coupled receptors (GPCR) that bind melatonin. Three types of melatonin receptors have been cloned. The MTNR1A (or Mel1A or MT1) and MTNR1B (or Mel1B or MT2) recep...
Estimation of genetic parameters of reproductive traits in Zandi sheep using linear and threshold models
reproductive traits genetic parameters
2015/6/23
Genetic parameters were estimated for four basic and two composite traits. Year of lambing
and age of ewe were used as fixed effects. Due to repeated record of ewe animal direct genetic effect...
Association of a microsatellite flanking FSHB gene with reproductive traits and reproductive tract components in pigs
pig FSHB gene microsatellite FSHBMS reproductive trait reproductive tract components
2015/6/5
Microsatellite FSHBMS polymorphism at the 5’ flanking region of FSHB gene was genotyped and associations with reproductive traits in several pig populations and with reproductive tract components in t...
Association of Length of Pregnancy with Other Reproductive Traits in Dairy Cattle
Holstein-Friesian Breed, Calving Ease, Stillbirth Rates, Heritability, Genetic Correlations
2016/5/9
The experiment involved observations of 2,514 Holstein-Friesian cows to determine the effects of environmental factors (cow’s age, calving season, weight and sex of calves, housing system) and genetic...
Single Nucleotide Polymorphisms of the GnRHR Gene Associated with Reproductive Traits of Japanese Flounder (Paralichthys olivaceus)
Japanese Flounder GnRHR SNPs Diplotype Reproductive Traits
2016/5/6
Gonadotropin-releasing hormone receptor (GnRHR) gene is expressed at the anterior pituitary gland and plays a key role in gonad development. This study aimed to investigate molecular genetic character...
Long Term Selection for Small Body Weight in Japanese Quail II:Changes in Reproductive Traits from 60 to 65th Generations
reproductive traits long term selection small body weight genetic fitness Japanese quail
2009/7/31
Establishment of small body size poultry is an important strategy, which leads to effective management of bird-colonies and less feed consumption. And also it would be a useful experimental tool for ...
Relationships among milk production, reproductive traits, and herd life for Tunisian Holstein-Friesian cows
Milk production reproductive traits herd life dairy cattle.
2009/3/3
The objective of this study was to link productive life of Tunisian dairy cows to their performances of milk, fat, and protein yields and fertility traits. Data included 128,652 records collected fr...
Associations between Alu I Polymorphism in the Prolactin Receptor Gene and Reproductive Traits of Slovak Large White, White Meaty and Landrace Pigs
Prolactin Receptor Gene PRLR Reproductive Traits Litter Size Pigs
2016/4/27
We investigated the effect of the prolactin receptor gene (PRLR) on total number of born (TNB), number of born alive (NBA) and number of weaned (NW) piglets in Large White (LW), White Meaty (WM) and L...
Changes in Reproductive Traits of Large White Pigs after Estrogen Receptor Gene-based Selection in Slovakia: Preliminary Results
ESR Gene Litter Size Pigs Selection
2016/4/27
We investigated the effect of ESR gene-based selection on an improvement of litter size in the herds in real (non-experimental) conditions. The pigs were selected for three years. In the tested popula...
Effect of the oestrogen receptor (ESR) gene on reproductive traits of Large White, White Meaty and Landrace pigs
oestrogen receptor gene reproductive traits litter size pig
2015/6/1
We investigated the effect of oestrogen receptor (ESR) gene on total number of born (TNB), number of born alive (NBA) and number of weaned (NW) piglets in Large White (LW), White Meaty (WM) and Landra...
Estimation of Genetic Parameters for Reproductive Traits between First and Later Parities in Pig
Pig Reproductive Traits Parities Genetic Parameters
2016/4/20
The objective of this study was to estimate genetic parameters between first and later parities as different traits in reproductive traits of pigs using multiple trait animal model procedures. Data re...