搜索结果: 106-120 共查到“农学 egg”相关记录133条 . 查询时间(0.031 秒)
EGGSHELL AND EGG CONTENT TRAITS IN PEKING DUCK EGGS FROM THE P44 RESERVE FLOCK RAISED IN POLAND
duck egg albumen yolk
2010/12/3
The egg quality of Peking ducks was evaluated on three different dates (the beginning, peak, end) of the first egg laying period. During the laying period the following increases were noted: in egg we...
Profit Efficiency among Nigerian Poultry Egg Farmers: A Case Study of Aiyedoto Farm Settlement, Nigeria
Profit efficiency poultry egg farmers socio-economic factors
2010/11/8
Production inefficiency is usually analysed by its two components- technical and allocative
efficiencies. This study provided a direct measure of production efficiency of the Nigerian poultry egg far...
Effects of Dietary Supplementation of Astaxanthin on Production Performance, Egg Quality in Layers and Meat Quality in Finishing Pigs
Astaxanthin Production Performance Egg Quality Meat Quality Layers Finishing Pigs
2016/4/21
Two experiments were conducted separately to study the effect of astaxanthin on production performance and egg quality in laying hens and meat quality in finishing pigs. In Experiment 1, four hundred ...
Effects of Additives on Laying Performance, Metabolic Profile, and Egg Quality of Hens Fed a High Level of Sorghum (Sorghum vulgare) during the Peak Laying Period
Laying Hen Sorghum Methionine Lysine Choline Sulfur
2016/4/21
This experiment was conducted to determine the effects of supplemental methionine, lysine, choline, and sulfur on laying performance, metabolic parameters, and egg quality of hens fed diets containing...
Effects of Dietary Lycopene and Vitamin E on Egg Production, Antioxidant Status and Cholesterol Levels in Japanese Quail
Lycopene Vitamin E Egg MDA
2016/4/20
Japanese Quails were used to evaluate the effects of dietary supplementation with vitamin E (dl-a-tocopheryl-acetate), lycopene, and their combination on egg production, egg quality, concentrations of...
Egg and Sperm Quality of the African catfish, Clarias gariepinus (Burchell) Broodstock Fed Differently Heated Soybean-based Diets
Clarias gariepinus soybean milt sperm oocytes fertilization hatching
2010/11/8
The effects of feeding Clarias gariepinus broodstock with differently heated soybean-based diets on the egg and sperm quality was investigated. Four hundred and eighty male and female C. gariepinus (1...
Effect of time of oviposition on egg quality characteristics in cages and in a litter housing system
cages deep litter oviposition time egg weight shell quality albumen quality yolk quality
2015/6/1
Two experiments were carried out to investigate the effect of the time of oviposition on egg quality characteristics in two different housing systems (cages vs. litter). ISA brown hens from 20 to 64 w...
Canonical correlation analysis for studying the relationship between egg production traits and body weight, egg weight and age at sexual maturity in layers
canonical correlation egg production body weight egg weight age at sexual maturity
2015/6/1
In this study, canonical correlation analysis was applied to layer data to estimate the relationships of egg production with age at sexual maturity, body weight and egg weight. For this purpose, it wa...
Nutrition Practice to Alleviate the Adverse Effects of Stress on Laying Performance, Metabolic Profile and Egg Quality in Peak Producing Hens: II. The Probiotic Supplementation
Cage Density Probiotic Laying Performance Metabolic Profile Egg Quality Peak-producing Hens
2016/4/20
In this experiment, the effects of cage density (CD) and probiotic supplementation (PS) on laying performance, metabolic profile, and egg quality in peak-producing hens were evaluated. After blocking ...
The Effects of Restricted Feeding and Feed Form on Growth, Carcass Characteristics and Days to First Egg of Japanese Quail (Coturnix coturnix japonica)
Quail Growth Performance Feed Restriction Diet Form Sexual Maturity
2016/4/20
A study was conducted to determine the effects of restricted feeding and feed form on the growth performance, characteristics of carcass and digestive tract, and days to first egg of Japanese quail (J...
Nutrition Practice to Alleviate the Adverse Effects of Stress on Laying Performance, Metabolic Profile, and Egg Quality in Peak Producing Hens: I. The Humate Supplementation
Cage Density Humate Laying Performance Metabolic Profile Egg Quality Peak-producing Hens
2016/4/20
This experiment was conducted to determine the effects of cage density (CD) and humate supplementation (HS) on laying performance, metabolic profile, and egg quality during the peak production period ...
Effects of Dietary Non-phytate Phosphorus Levels on Egg Production, Shell Quality and Nutrient Retention in White Leghorn Layers
Non Phytate Phosphorus Egg Production Shell Quality Nutrient Retention White Leghorn Layers
2016/4/19
An experiment was conducted (28 to 44 weeks) to study the laying performance, shell quality, and nutrient retention of White Leghorn layers fed different levels of non-phytate phosphorus (NPP). Six le...
Influence of Feeding β-Cyclodextrin to Laying Hens on the Egg Production and Cholesterol Content of Egg Yolk
Egg Production Egg Yolk Egg Quality Cholesterol
2016/4/19
The main objective of the present study was to determine the effect of dietary β-cyclodextrin (β-CD) on egg laying performance and cholesterol content of egg yolk. Feed intake, egg production and egg ...
Relationship between Differential Gene Expression in Ovary and Heterosis of Egg Number Traits in a Chicken Diallel Cross
Chickens Egg Number Heterosis Ovary mRNA Differential Display Differential Expression Patterns
2016/4/19
In order to understand the molecular basis of chicken heterosis in reproduction traits, mRNA differential display (DDRT-PCR) methods were used to analyze the differential gene expression of ovary tiss...
Effects of Dietary Vitamins C and E on Egg Shell Quality of Broiler Breeder Hens Exposed to Heat Stress
Vitamin C Vitamin E Egg Shell Quality Heat Stress H/L Ratios Broiler Breeder Hen
2016/4/19
A feeding trial was conducted to determine whether dietary vitamin C (200 mg/kg) and vitamin E (250 mg/kg) prevent any drops in egg shell quality under heat stress in broiler breeder hens. One hundred...