搜索结果: 1-15 共查到“农学 the population”相关记录160条 . 查询时间(0.171 秒)
Intraday Variation Mapping of Population Age Structure via Urban-Functional-Region-Based Scaling
age structure urban functional regions temporal scaling factor dasymetric model RF-RFE algorithm intraday variation map
2023/12/6
The spatial distribution of the population is uneven?for various reasons, such as urban-rural differences and geographical conditions differences. As the basic element of the natural structure of the ...
Population Dynamics of Juniperus macropoda Bossier Forest Ecosystem in Relation to Soil Physico-Chemical Characteristics in the Cold Desert of North-Western Himalaya
cold desert soil nutrients biomass carbon density elevational ranges natural regeneration
2023/12/1
Juniperus macropoda is the only tree species of a cold desert ecosystem that is experiencing high anthropogenic pressure and has a poor regeneration status due to harsh environmental conditions. Due t...
于典司（2021）Genetic diversity and population structure of popcorn germplasm resources using genome-wide SNPs through genotyping-by-sequencing （图）
爆米花 遗传多样性 SNP 爆裂玉米
2023/2/27
上海市农业科学院作物育种栽培研究所玉米研究中心郑洪建团队在Genetic Resources and Crop Evolution发表了题为“Genetic diversity and population structure of popcorn germplasm resources using genome-wide SNPs through genotyping-by-sequencing...
Genome-wide quantitative trait loci reveal the genetic basis of cotton fiber quality and yield-related traits in a G.hirsutum recombinant inbred line population
0-153 sGK9708 棉花产量 品质性状
2024/5/17
利用0-153和sGK9708为亲本构建的RIL群体为材料，通过全基因组QTL挖掘明确了棉花产量及品质性状的相关性及其与QTL簇加性效应方向的关系，初步揭示了棉花产量纤维品质性状负相关形成的遗传基础，为进一步利用标记辅助选择、基因组编辑等技术同步改良棉花纤维品质和产量提供了重要的基因资源和位点信息。该研究以0-153*SGK9708为亲本构建的含有196个重组自交系群体为材料，在黄河流域及西北内陆...
Effect of inclusion of different levels of Leucaena silage on rumen microbial population and microbial protein synthesis in dairy steers fed on rice straw
Dairy Steers Leucaena Silage Microbial Population Microbial Protein Synthesis Rice Straw
2017/3/8
Leucaena leucocephala (Leucaena) is a perennial tropical legume that can be directly grazed or harvested and offered to ruminants as hay, silage, or fresh. However, Leucaena contain phenolic compounds...
Effects of probiotic supplement (Bacillus subtilis and Lactobacillus acidophilus) on feed efficiency, growth performance, and microbial population of weaning rabbits
Bacillus Subtilis Lactobacillus Acidophilus Probiotic Rabbit
2017/3/8
This study aimed to investigate the effects of single or/and double strains of probiotic supplement on feed efficiency, growth performance, and microbial population in distal gastrointestinal tract (G...
Genetic parameters for residual feed intake in a random population of Pekin duck
Genetic Parameters Residual Feed Intake Pekin Duck
2017/3/8
The feed intake (FI) and feed efficiency are economically important traits in ducks. To obtain insight into this economically important trait, we designed an experiment based on the residual feed inta...
Effects of diet supplementation with herbal blend and sunflower seeds on fermentation parameters,microbial population,and fatty acid profile in rumen of sheep
16S-PCR-DGGE medicinal herbs phagocytic activity lipid metabolism rumen fluid PUFA source
2016/12/20
The study evaluated the rumen fermentation pattern, microbial population, fatty acid composition, and antioxidant status in the rumen fluid and blood of sheep in response to a diet supplemented with h...
A chromosome-wide QTL mapping on chromosome 2 to identify loci affecting live weight and carcass traits in F2 population of Japanese quail
DNA markers growth traits QTLs
2016/7/6
The Japanese quail (Coturnix japonica) is a considerable species which is often used for animal modelling in breeding researches. This study aims to detect quantitative trait loci (QTL) underlying gro...
Imputation Accuracy from Low to Moderate Density Single Nucleotide Polymorphism Chips in a Thai Multibreed Dairy Cattle Population
Imputation Accuracy Linkage Disequilibrium Multibreed Dairy Cattle
2016/5/19
The objective of this study was to investigate the accuracy of imputation from low density (LDC) to moderate density SNP chips (MDC) in a Thai Holstein-Other multibreed dairy cattle population. Dairy ...
Effectiveness of Phytogenic Feed Additive as Alternative to Bacitracin Methylene Disalicylate on Hematological Parameters, Intestinal Histomorphology and Microbial Population and Production Performance of Japanese Quails
Feed Antibiotic Blood Constituents Performance Phytogenic Feed Additive
2016/11/10
This study was conducted to evaluate the effects of phytogenic additive and antibiotic growth promoter in laying Japanese quails. One hundred and sixty five quails were divided into three groups of 5 ...
Genetic population structure of Bemisia tabaci in Spain associated with Tomato leaf curl New Delhi virus – short communication
whitefly begomovirus zucchini squash
2017/4/6
Tomato leaf curl New Delhi virus (ToLCNDV) originates from Asia where it is persistently transmitted by indigenous cryptic species of the whitefly Bemisia tabaci. The virus has recently invaded Spain,...
Equivalent effective population size mating as a useful tool in the genetic management of the Ibicenco rabbit breed (Conill Pages d’Eivissa)
diversity genetic structure pedigree small populations
2016/3/24
The Ibicenco rabbit (Conill Pages D’Eivissa) is a rare breed mainly located on Ibiza Island, in rural areas. Today breeders are looking for a sustainable use and alternative routes for profitability o...
Validation of Single Nucleotide Polymorphisms Associated with Carcass Traits in a Commercial Hanwoo Population
Validation Single Nucleotide Polymorphism Carcass Traits Hanwoo
2016/11/10
Four carcass traits, namely carcass weight (CW), eye muscle area (EMA), back fat thickness (BF), and marbling score (MS), are the main price decision parameters used for purchasing Hanwoo beef. The de...
Needs of the local population related to development of forests for recreational purposes: example of south-eastern Poland
forest recreation forest use Podkarpacie
2016/1/29
Independent assessments of the local community’s needs for recreational development of forests provide important information for forestry and forest administrations. The study was designed to identify...