搜索结果: 1-15 共查到“农学 Laying Performance”相关记录16条 . 查询时间(0.125 秒)
Effects of Octacosanol Extracted from Rice Bran on the Laying Performance, Egg Quality and Blood Metabolites of Laying Hens
Octacosanol Laying Performance Egg Quality Blood Metabolites Laying Hens
2016/11/10
A 42-d study with 384 Hy-line brown laying hens was conducted to assess the effects of dietary octacosanol supplementation on laying performance, egg quality and blood metabolites of laying hens. Hens...
Effect of Dietary Supplementation of Red Ginseng By-product on Laying Performance, Blood Biochemistry, Serum Immunoglobulin and Microbial Population in Laying Hens
Red Ginseng By-product, Laying Hen Laying Performance Serum Cholesterol
2016/11/10
This study was carried out to investigate the effect of dietary supplementation of red ginseng by-product (RGB) on the laying performance, blood biochemistry, and microbial population in laying hens. ...
Effects of laying hens housing system on laying performance, egg quality characteristics, and egg microbial contamination
cage aviary litter egg production
2015/7/2
The objective of this study was to compare the performance, egg quality, and microbial contamination of egg shells from hens maintained in different housing systems, such as conventional and enriched ...
Effects of phytase B on laying performance, eggshell quality and on phosphorus and calcium balance in laying hens fed phosphorus-deficient maize-soybean meal diets
phytase B laying hen laying performance eggshell quality retention of P and Ca
2015/6/9
A study was conducted to evaluate the effects of dietary supplementation of phytase B (product of the Aspergillus niger phyB gene expressed in Trichoderma reesei) on feed intake, laying performance, e...
Laying performance and eggshell quality in laying hens fed diets supplemented with prebiotics and organic acids
laying hens egg production eggshell quality organic acids prebiotic fructans
2015/6/8
The aim of the study was to evaluate the effect of organic acids and the prebiotic fructans on egg production and eggshell quality when added to the layer diet with different levels of calcium and pho...
Effects of differences in the initial body weight of groups on laying performance and egg quality parameters of Lohmann laying hens
body weight laying hen laying performance egg quality traits
2015/6/5
This study was carried out to investigate the effect of different body weight groups (light (L) = 1 400–1 500; medium (M) = 1 500–1 600 and heavy (H) = 1 600 < g) on performance and egg quality traits...
Effect of γ-Aminobutyric Acid-producing Lactobacillus Strain on Laying Performance, Egg Quality and Serum Enzyme Activity in Hy-Line Brown Hens under Heat Stress
γ-Aminobutyric Acid Lactobacillus Heat Stress Laying Performance Egg Quality
2016/5/18
Heat-stress remains a costly issue for animal production, especially for poultry as they lack sweat glands, and alleviating heat-stress is necessary for ensuring animal production in hot environment. ...
Comparison of Aviary, Barn and Conventional Cage Raising of Chickens on Laying Performance and Egg Quality
Aviary System Poultry Housing Productive Performance Egg Traits
2016/5/17
This study intended to compare the productive performance of three different layer raising systems; conventional cage (CC), barn (BR) and aviary (AV). The AV is welfare bestowed housing that allows fr...
Effects of Supplementary Blood Meal on Carnosine Content in the Breast Meat and Laying Performance of Old Hens
Blood Meal Carnosine Chicken Breast Muscle Spent Layer Magnesium Oxide Eggshell Strength
2016/5/5
The objective of this research was to evaluate the effects of dietary supplementation of blood meal (BM) as a source of histidine, and magnesium oxide (MgO) as a catalyst of carnosine synthetase, on c...
Effects of Dietary Skullcap (Scutellaria baicalensis) Extract on Laying Performance and Lipid Oxidation of Chicken Eggs
Skullcap Extract Egg Weight Malondialdehyde Haugh Unit Laying Hens
2016/5/4
This study was conducted to investigate the effect of dietary domestic Skullcap (Scutellaria baicalensis) extracts (SCE) on laying performance and egg quality in laying hens. There were no significant...
The Nutritive Value of Azolla (Azolla pinnata) Meal in Diets for Growing Pullets and Subsequent Effect on Laying Performance
azolla meal egg quality growth haematology laying performance
2009/7/30
The effect of incorporating graded levels of azolla meal (AZM) in diets of growing pullets was investigated. Particular reference was given to growth, haematology and subsequent laying performance. In...
Effects of Dietary Dihydropyridine Supplementation on Laying Performance and Fat Metabolism of Laying Hens
HSL (Hormone-sensitive Triglyceride Lipase) SOD (Superoxide D
2016/4/26
The experiment was conducted to investigate the effects of dihydropyridine on laying performance and fat metabolism of laying hens. Five hundred and forty laying hens, 40 weeks old, were randomly allo...
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...
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 ...
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 ...