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A comparison of lutein, spray-dried Chlorella, and synthetic carotenoids effects on yolk colour, oxidative stability, and reproductive performance of laying hens
carophyll alga egg quality yolk colour cooking length
2015/6/24
ISA Brown hens were fed diets supplemented with the synthetic carotenoids Carophyll Red and Carophyll Yellow at 20 and 15 mg/kg, respectively, lutein at 250 mg/kg, and the algae Chlorella at 12.5 g/kg...
Influence of dietary vitamin C and selenium, alone and in combination, on the performance of laying hens and quality of eggs
ascorbic acid sodium selenite selenized yeast layers vitamins egg production
2015/6/24
Two hundred and forty laying hens were fed diets supplemented with vitamin C and selenium (Se). Vitamin C was added at 0 or 200 mg/kg, and Se was added as sodium selenite or selenized yeast at 0.3 mg/...
Effects of Dietary Corticosterone on Yolk Colors and Eggshell Quality in Laying Hens
Laying Hens Egg Quality Stress Corticosterone Yolk Colors Shell Thickness
2016/5/18
The objective of this study was to investigate the effects of dietary corticosterone on egg quality. For 2 weeks hens received either control or experimental diet containing corticosterone at 30 mg/kg...
Evaluation of Dietary Multiple Enzyme Preparation (Natuzyme) in Laying Hens
Multiple Enzyme Preparation Egg Qualities Performance Intestinal Viscosity
2016/5/17
The current experiment was designed to evaluate the efficacy of adding the multi-enzyme mixture (Natuzyme) into layers’ diets with different levels of energy and available phosphorus in relation to la...
Earlier Metabolizable Energy Intake Level Influences Heat Production during a Following 3-Day Fast in Laying Hens
Net Energy Metabolizable Energy Laying Hens Heat Production Fasting Indirect Calorimetry
2016/5/11
The present study was conducted to estimate energy requirements for maintenance in laying hens by using indirect calorimetry and energy balance. A total of 576 28-wk-old Nongda-3 laying hens with dwar...
Effects of Dietary Persimmon Peel and its Ethanol Extract on the Production Performance and Liver Lipids in the Late Stage of Egg Production in Laying Hens
Persimmon Peel Persimmon Peel Ethanol Extract Laying Hen Liver Lipid Egg Quality
2016/5/11
The purpose of this study was to investigate the dietary effects of persimmon peel (PP) and PP ethanol extract (PPE) on egg production, egg quality, and liver lipids in the late stage of egg productio...
Effect of Red Pepper (Capsicum frutescens) Powder or Red Pepper Pigment on the Performance and Egg Yolk Color of Laying Hens
Egg Yolk Color Egg Weight Laying Hens Pigments Red Pepper Powder
2016/5/11
Two experiments were conducted to study the effects of red pepper (Capsicum frutescens) powder or red pepper pigment on the performance and egg yolk color of laying hens. In Exp. 1, 210, thirty-wk old...
Impacts of Limestone Multi-particle Size on Production Performance, Egg Shell Quality, and Egg Quality in Laying Hens
Egg Quality Egg Shell Quality Layers Limestone Particle Size
2016/5/10
This experiment was conducted to evaluate the effects of single or multi-particle size limestone on the egg shell quality, egg production, egg quality and feed intake in laying hens. A total of 280 la...
Influence of Fermented Red Ginseng Extract on Broilers and Laying Hens
Broilers Fermented Red Ginseng Extract Laying Hens Performance
2016/5/6
The aim of this study was to evaluate the potential of fermented red ginseng extract (FRGE) as feed additive in broilers and laying hens. In broilers, 480 Arbor Acre male broilers were randomly allott...
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...
Effects of Dietary Fe-soy Proteinate and MgO on Egg Production and Quality of Eggshell in Laying Hens
MgO Fe-soy Proteinate Eggshell Quality Layer Hemoglobin
2016/5/5
This study investigated the effects of Fe-soy proteinate (Fe-SP) and magnesium oxide (MgO) dietary supplements on eggshell quality in laying hens. A total of 800 26-wk-old Hy-Line Brown hens were assi...
Evaluation of Dietary Supplementation of Delta-aminolevulinic Acid and Chito-oligosaccharide on Production Performance, Egg Quality and Hematological Characteristics in Laying Hens
Delta-aminolevulinic Acid Chito-oligosaccharide Performance Egg Quality Laying hen
2016/5/5
The effects of delta-aminolevulinic acid (DALA) or chito-oligosaccharide (COS) in layer diets on production performance, egg quality and hematological characteristics were investigated in this 8-week ...
Carotenoid Accumulation and Their Antioxidant Activity in Spent Laying Hens as Affected by Polarity and Feeding Period
Pigmentation Carotenoid Polarity Laying Hen Feeding Period Astaxanthin
2016/5/5
Since the consumption of spent laying hens as roasted skewered meat increases, the effects of various carotenoids on pigmentation and antioxidant activity were tested with 62-wk-old 250 ISA brown layi...
Effects of Fermented Garlic Powder on Production Performance, Egg Quality, Blood Profiles and Fatty Acids Composition of Egg Yolk in Laying Hens
Blood Profiles Egg Production Egg Quality Fatty Acids Garlic Powder Laying Hens
2016/5/4
The effects of fermented garlic powder on production performance, egg quality, blood profiles and fatty acid composition of egg yolk in laying hens were studied in a 35-d experiment. Two-hundred and f...
Effects of Dietary Betaine on the Secretion of Insulin-like Growth Factor-I and Insulin-like Growth Factor Binding Protein-1 and -3 in Laying Hens
Betaine Laying Hens Insulin-like Growth Factor-I Insulin-like Growth Factor Binding Protein IGF-I mRNA Gene Expression
2016/5/4
The principal objective of this experiment was to determine the effects of dietary betaine on IGF-I, IGFBP-3 and IGFBP-1 secretion and IGF-I mRNA gene expression in the serum and liver of laying hens....