搜索结果: 1-15 共查到“家畜繁殖学 Reproduction”相关记录23条 . 查询时间(0.054 秒)
Genetic correlations between first parity and accumulated second to last parity reproduction traits as selection aids to improve sow lifetime productivity
Breeding Swine Genetic Parameters Reproduction Traits Subsequent Reproductive Performance
2017/3/9
The objective of this research was to estimate genetic correlations between number of piglets born alive in the first parity (NBA1), litter birth weight in the first parity (LTBW1), number of piglets ...
日本生殖与发育学会（The Society for Reproduction and Development，SRD)
日本生殖与发育学会 The Society for Reproduction and Development SRD
2017/1/7
The Society for Reproduction and Development (SRD) was established in 1948 to encourage the study of reproductive biology in wild, domestic, laboratory, and companion animals. This was two years befor...
欧洲家畜繁殖学会（The European Society for Domestic Animal Reproduction，ESDAR）
欧洲家畜繁殖学会 The European Society for Domestic Animal Reproduction ESDAR
2017/1/7
The European Society for Domestic Animal Reproduction-ESDAR is a non-profitable community with special emphasis on reproduction in domestic animals and wild animals as well. The society supports all a...
Benefits of hormone treatment of both sexes in semi-artificial reproduction of pikeperch (Sander lucioperca L.)
hCG spermatozoa fertilization hatching spawning nest larvae
2016/6/3
Propagation of pikeperch Sander lucioperca by semi-artificial management was investigated using hormonal induction to better understand the effect of hormonal treatment of both sexes. Fourteen pairs o...
Reproduction Efficiency and Health Traits in Dorper, White Dorper, and Tsigai Sheep Breeds under Temperate European Conditions
Sheep Genotype Fitness Health Performance Reproduction
2016/5/18
The objective of the current pilot study was to evaluate the reproductive performance and health indicators in Dorper, White Dorper, and Tsigai breed ewes managed semi-intensively under European tempe...
Relationships between the incidence of health disorders and the reproduction traits of Holstein cows in the Czech Republic
health fertility parameters dairy cows
2015/6/4
The objective of this study was to evaluate the relationships between several health disorders: milk fever (MF; hypocalcaemia and parturient paresis), retained placenta (RP; retained foetal membranes)...
Breeding value evaluation in Polish fur animals: Estimates of direct heritability and portion of litter variation of fur coat and reproduction traits
arctic fox fur coat heritability
2015/6/1
The study presents estimates of heritability for fur coat and reproduction traits in arctic and silver foxes kept on Polish farms. The estimates of variance components were calculated using the DFREML...
Selenium in Pig Nutrition and Reproduction: Boars and Semen Quality—A Review
Selenium Boar Nutrition Lipids Antioxidants
2015/5/18
Selenium plays an important role in boar nutrition via participating in selenoprotein synthesis. It seems likely that selenoproteins are central for antioxidant system regulation in the body. Se-depen...
Genetic parameters of live body weight, body measurements, greasy fleece weight, and reproduction traits in Makuie sheep breed
direct and maternal effects heritability
2014/10/28
Genetic parameters of production and reproduction traits were estimated using 39,926 records from 5,860 individual progenies of 163 sires and 1,558 dams. The data were collected at Makuie Sheep Breedi...
Management of Reproduction on Small, Medium and Large Rabbit Farms: A Review
Rabbit Does Reproductive Rhythm Energy Balance Hormonal Treatment Biostimulation Farm Size
2012/5/10
One of the main goals of small, medium and large farms is to improve the reproductive performance of rabbit does. Stocks of lower productivity can be improved by crossing with intensive breeds. A bett...
Molecular Bases for Seasonal Reproduction in Birds
circadian clock Japanese quail photoperiodism thyroid hormone
2009/7/31
Appropriate timing of various seasonal processes is crucial to the survival and reproductive success of animals inhabiting temperate regions. When seasonally breeding animals are subjected to annual c...
Genome-wide Analysis of Seasonal Reproduction in Birds
deiodinase mediobasal hypothalamus pars tuberalis photoperiodism thyrotropin
2009/7/29
Many seasonal breeding animals can estimate the day length (photoperiod) and prepare for breeding in the optimal season. The Japanese quail (Coturnix japonica) is an excellent model for studying photo...
Estimation of Genetic Parameters for Four Reproduction Component Traits in Two Chinese Indigenous Pig Breeds
Sow Reproduction Component Trait Heritability Genetic Correlation
2008/4/28
The reproduction component traits are important components of sow efficiency. The objective of this study was to evaluate the phenotypic and genetic parameters of four reproduction component traits (a...
Effect of Improved Cooling System on Reproduction and Lactation in Dairy Cows under Tropical Conditions
Evaporative Cooling Energy Balance Milk Production Ovarian Activity Tropical Condition Dairy Cows
2008/4/27
The effects of utilizing evaporative cooling system equipped with tunnel ventilation on postpartum ovarian activities, energy balance and milk production of early lactating dairy cows under hot and hu...
Relationship between longevity and selected production, reproduction and type traits
cattle longevity functional longevity milk traits reproduction traits type trakte
2005/6/1
The correlations between longevity, functional longevity, stayability and selected milk, reproductive and type traits were estimated; it was done on the basis of estimated breeding values for longevit...