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Effect of Suboptimal Levels of Non-Phytate Phosphorus and Exogenous Phytase on Precaecal Digestibility of Phosphorus and Calcium in Laying Hens
layers ileum calcium and phosphorus absorption
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2018/3/5
Musilova A., Lichovnikova M., Kupcikova L., Anderle V. (2017): Effect of suboptimal levels of non-phytate
phosphorus and exogenous phytase on precaecal digestibility of phosphorus and calcium in layi...
Effects of lupin seed supplementation on egg production performance,and qualitative egg traits in laying hens
Lupinus angustifolius L. laying performance egg quality yolk colour
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2016/12/8
We investigated the effects of lupin (Lupinus angustifolius L.) seed supplementation on egg production performance and egg quality in laying hens. A total of 120 Hy-Line Brown laying hens (29-week old...
Effect of dietary magnesium,calcium,phosphorus,and limestone grain size on productive performance and eggshell quality of hens
magnesium oxide limestone granularity mixed feed Ca : NPP ratio egg shell strength layers
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2016/11/11
Two experiments conducted on laying hens, aged 50 and 52 weeks, were carried out to evaluate the effect of dietary Mg and its relationship to the Ca : NPP (non-phytate phosphorus) ratio using a variou...
Levels of fatty acids in the whole body of hens and cocks of the Cobb 500 and Ross 308 hybrid combinations at the end of the fattening period
saturated fatty acids monounsaturated fatty acids polyunsaturated fatty acids n-6 n-3
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2016/9/1
In this study, we determined the levels of individual fatty acids in the whole chicken body, as well as dry matter, nitrogenic substances and fat in Cobb 500 and Ross 308 chickens after 40 days of fat...
Eggshell structure,measurements,and quality-affecting factors in laying hens:a review
eggshell composition eggshell quality oviposition time genotype housing system
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2016/8/1
Eggshell quality is one of the most significant factors affecting poultry industry; it economically influences egg production and hatchability. Eggshell consists of shell membranes and the true shell ...
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
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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...
Effects of Dietary Calcium Levels on Productive Performance, Eggshell Quality and Overall Calcium Status in Aged Laying Hens
Dietary Calcium Levels Cracked Eggs Eggshell Strength Tibial Breaking Strength
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2016/11/10
This study was conducted to investigate the effects of diets with varying levels of calcium on egg production, shell quality and overall calcium status in aged laying hens. A total of five hundred 70-...
Effects of a low-phosphorus diet and exogenous phytase on performance,egg quality,and bacterial colonisation and digestibility of minerals in the digestive tract of laying hens
layers eggshell microbial 3-phytase ileum caecum Lactobacillus spp
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2015/12/17
The objective of the experiment was to determine the effects of different levels of phytase (0, 150, 250, and 350 phytase units (FTU)/kg; F) produced by Aspergillus niger in the diets of hens fed decr...
Effects of dietary gamma-aminobutyric acid on egg production, egg quality, and blood profiles in layer hens
gamma-aminobutyric acid egg production egg quality
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2015/11/26
Hy-line brown commercial layers (32 weeks old) were used to investigate the effects of GABA
(gamma-aminobutyric acid) derived from E. coli strains on productivity, egg quality, and blood profile. In...
Novel Polymorphisms of Adrenergic, Alpha-1B-, Receptor and Peroxisome Proliferator-activated Receptor Gamma, Coactivator 1 Beta Genes and Their Association with Egg Production Traits in Local Chinese Dagu Hens
Polymorphisms ADRA1B PPARGC1B Chinese Dagu Hens Egg Production Traits
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2016/11/10
Adrenergic, alpha-1B-, receptor (ADRA1B) and peroxisome proliferator-activated receptor gamma, coactivator 1 beta (PPARGC1B) genes are involved in regulation of hen ovarian development. In this study,...
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
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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. ...
Levels of nitrogenous substances and amino acids in bodies of Ross 308 hybrid cocks and hens over the course of rearing
broiler nitrogenous substance amino acid essential non-essential
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2015/10/9
Over the course of Ross 308 hybrid broiler chick cock and hen rearing, whole chicken bodies including feathers were monitored for changes in the levels of nitrogenous substances, essential amino acids...
Comparison of the content of crude protein and amino acids in the whole bodies of cocks and hens of Ross 308 and Cobb 500 hybrids at the end of fattening
broiler chickens chemical analysis essential amino acids
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2015/7/7
Percentages
for the content of individual AA were then calculated from the total sums of AA. The level of CP, irrespective
of sex, was 453.16 ± 5.916 g/kg of DM for the Ross and 470.94 ± 5.404 g/k...
Bones quality indices in laying hens fed diets with a high level of DDGS and supplemented with selected feed additives
layers distillers dried gains with solubles feed supplements
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2015/7/3
An experiment with 192 caged ISA Brown laying hens, fed a diet containing a high level of corn distillers dried grains with solubles (DDGS), was conducted to determine the influence of selected feed a...
The effect of non-phytate phosphorus and phytase levels on performance, egg and tibia quality, and pH of the digestive tract in hens fed higher-calcium-content diet
mineral nutrition laying hen egg production
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2015/7/3
The effect of three levels of non-phytate phosphorus (NPP) (3.0, 2.1, and 1.7 g/kg) and two levels of 3-phytase (F) (0 and 150 phytase units (FTU)/kg) together with a high dietary calcium concentratio...