搜索结果: 16-30 共查到“农学 Layer”相关记录52条 . 查询时间(0.093 秒)
Herbaceous-Layer Community Dynamics along a Harvest-Intensity Gradient after 50 Years of Consistent Management
Northern Hardwood Forests Uneven-Aged Management NMS Ordination Understory Diversity Diameter-Limit Single-Tree Selection
2013/3/4
In 1958, a demonstrational cutting trial totaling 22.2 ha was established in a northern hardwood forest in Alberta, MI. Eight different treatments were installed, including four diameter-limit treatme...
Effects of Rearing Systems on Performance, Egg Characteristics and Immune Response in Two Layer Hen Genotype
Organic Cage Genotype Laying Hen Performance Egg Characteristics Immune Response
2016/5/9
White (Lohmann LSL) and Brown (ATAK-S) laying hens, were reared under organic and conventional cage rearing systems, and the effects of the rearing system on performance parameters, egg production, eg...
Garlic (Allium sativum) Supplementation: Influence on Egg Production, Quality, and Yolk Cholesterol Level in Layer Hens
Garlic Hen Egg Bacterial Count Cholesterol
2016/5/5
Forty-eight 40-wk-old Hi-sex laying hens were individually caged in an environmentally controlled house to evaluate the effect of garlic (Allium Sativum) juice administration on egg production, egg qu...
Seasonal Changes in the Amount of Litter Layer and Soil Erosion in the Forest Floor:An Impoverished Understory by Deer Impact at Doudaira,Tanzawa Mountains
beech (Fagus crenata) forests browsing impact by sika deer (Cervus nippon) litter soil erosion understory
2009/8/24
Soil erosion has been progressing over a large area in Doudaira (located in East Tanzawa of Kanagawa Prefecture) due to the sika deer (Cervus nippon) feeding which has in turn resulted in a reduction ...
Seasonal Changes in Distribution of Intercepted Photosynthetically Active Radiation for Layer and Dry Matter Production in Spring Wheat Canopy
Efficiency of dry matter accumulation Crop growth rate Photosynthetically active radiation Slope of flag leaf Spring wheat
2009/8/4
In order to understand the relationship between solar radiation and biomass production within crop canopies, penetration, reflection, and interception of photosynthetically active radiation (PAR) were...
YESTERDAY,TODAY AND TOMORROW OF THE KOREAN LAYER INDUSTRY.
Efficient Gene Transfer into Early Chicken Embryos by Electroporation of Stage X Blastoderms in Vivo, Applying Electric Pulses Vertically to the Blastoderm Layer
blastoderm chick embryo electroporation embryo culture GFP gene
2009/7/31
In order to introduce exogenous DNA into early chicken embryos by transfecting the stage X (EG&K) blastoderm, in vivo electroporation was applied to it. A pair of novel electrodes was devised for appl...
Comparison of Hypothalamic Monoamine Contents of Broiler- and Layer- Type Chickens at Prehatch and Posthatch
monoamines monoamine metabolites hypothalamus broiler-type chicken layer-type chicken
2009/7/31
Domestic chickens, which are precocial, have relatively well developed mechanisms of food intake regulation at hatch. Although their body weight is similar at hatch, broiler- and layer-type chickens ...
Culture of Chicken Embryos Obtained from the Anterior Region of the Magnum of the Oviduct after Removing a Thin Layer of Dense Albumen Capsule from the Ovum
chicken embryo culture dense albumen embryo manipulation fertilised ovum
2009/7/31
Fertilised ova, obtained from the anterior region of the magnum of the oviduct 60-80min after the preceding egg had been laid, were cultured in vitro with dense albumen adjusted to pH 7.0 after removi...
Effects of Diethylstilbestrol Administration on Sperm Penetration into the Inner Perivitelline Layer of Japanese Quail,Coturnix japonica
diethylstilbestrol inner perivitelline layer quail sperm penetration
2009/7/30
The aim of this study was to examine the effects of diethylstilbestrol (DES) administration on sperm penetration into the inner perivitelline layer (IPL) of ovum, and the interaction between sperm and...
Comparative Effects of Xylanase Supplementation on Broiler,Broiler Breeder and Layer Chick Performance and Feed Utilization on Wheat Based Diet
broiler broiler breeder enzyme layer performance
2009/7/30
The interaction between chick type and xylanase supplementation (Avizyme 1300) of a wheat based diet was investigated using a 3×2 factorial arrangement. The diet (645g wheat/kg) was supplemented with ...
Use of Duckweed (Lemna perpusilla) as a Protein Source Feed Item in the Diet of Semi-Scavenging Jinding Layer Ducks
duckweed egg production jinding duck mustard oil cake weight gain
2009/7/30
An experiment was conducted for a period of 75 days at farmers house to investigate the effect of feeding duckweed (Lemna perpusilla) that replaced conventional protein supplement mustard oil cake (MO...
Comparison of the Slaughter Quality of Layer-Type Cockerels and Broiler Chickens
broiler chickens layer-type slaughter quality
2009/7/30
The aim of the study was to compare the slaughter quality of layer-type cockerels and broilers reared under identical conditions. The experimental materials comprised broiler (Ross 308 ; 100 males a...
Responses of Semi-Scavenging F1 Crossbred (Rhode Island Red Male ×Fayoumi Female) Grower and Pre-Layer Chickens to Diets of Different Nutrient Density Formulated with Locally Available Feed Ingredients
crossbreds nutrient density grower pre-layer performance
2009/7/30
Two experiments were conducted to investigate the birds’ responses to diets of varying nutrient concentrations, one with 126 eight-week old F1 crossbred (Rhode Island Red male×Fayoumi female) birds up...
Association of Microsatellites with Growth and Immunocompetence Traits in Crossbred Layer Chicken
chicken growth immunocompetence microsatellite
2009/7/30
The present investigation was carried out on six crossbred chicken populations to estimate variability of microsatellites and their association with growth and other traits. Five microsatellite marker...