搜索结果: 1-11 共查到“农学 stocking”相关记录11条 . 查询时间(0.046 秒)
Limnological changes in a pond ecosystem caused by grass carp (Ctenopharyngodon idella Val.) low stocking density
aquatic macrophytes water and sediment chemistry phytoplankton
2015/6/8
Grass carp (Ctenopharyngodon idella Val.) stocked (29 kg/ha) in a small pond reduced the biomass of aquatic macrophytes from 109 g/m2 to 33 g/m2 during one growing season. The only changes in hydroche...
Derivation of target stocking for forests of Norway spruce vegetation zone in Slovakia
target stocking static stability slenderness coefficient
2015/3/6
The present paper deals with derivation of target stocking in forests of Norway spruce vegetation zone. Target stocking in forests with prevailing ecological and social functions is the stocking when ...
Spring phenology of European beech (Fagus sylvatica L.) in a submountain beech stand with different stocking in 1995–2004
Fagus sylvatica phenology bud-burst
2015/3/3
Two spring phenophases (bud-burst and leaf unfolding) of a parent stand and naturally regenerated
undergrowth of European beech were observed in conditions under different stand density over the las...
Plant responses following grazing removal at different stocking rates in an Inner Mongolia grassland ecosystem
Grazing removal Ecosystem stability. Compensatory effect Precipitation variation Grassland management Grassland restoration
2015/2/4
Grazing removal is widely used in grassland management. Plant responses following grazing removal at different organizational levels, however, are not well understood. We examined plant responses at d...
Effect of Vitamin Levels and Different Stocking Densities on Performance, Nutrient Digestibility, and Blood Characteristics of Growing Pigs
Cortisol Density Growing pigs Performance Vitamin Level
2016/5/11
This study was conducted to evaluate the effects of dietary vitamin levels and stocking densities on growth performance, nutrient digestibility, and blood characteristics in growing pigs. A 2×3 factor...
Effects of Stocking Density or Group Size on Intake, Growth, and Meat Quality of Hanwoo Steers (Bos taurus coreanae)
Stocking Density Hanwoo Growth Meat Quality Animal Welfare
2016/5/10
This study was conducted to investigate the effects of stocking density or group size on feed intake, daily gain, and carcass characteristics of Hanwoo (Korean indigenous breed) steers reared from 7 m...
Effects of the Combined Stress Induced by Stocking Density and Feed Restriction on Hematological and Cytokine Parameters as Stress Indicators in Laying Hens
The Combined Stressor Stocking Density Feed Restriction Hematological Values Cytokines Laying Hens
2016/5/6
A study was conducted to investigate the effects of the combined stressor induced by high stocking density with feed restriction on immunological parameters such as leukocyte differential counts and c...
The Effect of Stocking Density on Stress Related Genes and Telomeric Length in Broiler Chickens
Chicken Stress Heat Shock Proteins Telomere
2016/5/4
To be economically profitable, the poultry industry demands an increase in stocking density, which could adversely affect chicken welfare. The current study was performed to investigate the effect of ...
Influence of stocking rate on herbage production, steers livemass gain and carcass price on semi-arid sweet bushveld in Southern Botswana
Semi-arid sweet bushveld grazing herbage yield hectares per livestock stocking rate
2009/3/4
The influence of stocking rate on vegetation and animal performance was investigated over a period of 15 years in the Semi-arid Sweet Bushveld of Southern Botswana. The objective of the study was to...
Effects of Breeder Age and Stocking Density on Performance, Carcass Characteristics and Some Stress Parameters of Broilers
Breeder Age Stocking Density Broiler Stress
2016/4/27
The aim of this study was to determine the effects of breeder age and stocking density on performance, carcass characteristics and some stress parameters (H-L ratio, serum glucose, cholesterol and tri...
Effects of Stocking Density and Transportation Time of Market Pigs on Their Behaviour, Plasma Concentrations of Glucose and Stress-associated Enzymes and Carcass Quality
Pig Transportation Stress Behaviour Carcass
2016/4/14
It is known that the transportation stress of market pigs can affect their carcass quality and that blood concentrations of glucose, creatine kinase (CK) and lactate dehydrogenase (LDH) are indicators...