scholarly journals The Excretion of Ca, Mg, Zn and Cu Through Excreta of Laying Hens Fed Two Different Levels of Protein with and without Phytase

2019 ◽  
Vol 7 (1) ◽  
pp. 68
Author(s):  
Skender Muji ◽  
Alltane Kryeziu ◽  
Muhamet Kamberi ◽  
Ragip Kastrati ◽  
Nuridin Mestani
Keyword(s):  
Crude Protein ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Mass ◽  
Egg Weight ◽  
Forced Draft Oven ◽  
Forced Draft ◽  
Dietary Treatments ◽  
Mg Content ◽  
Different Levels

An 8-week experiment was conducted to study the effect of added Natuphos® 5000 phytase in corn–soybean meal-based diets on laying hens fed different levels of crude protein (CP) (14 and 17%). Two levels of phytase enzyme were used: 0 and 600 Phytase Units (FTU)/kg feed. The experiment used 144 Hisex Brown laying hens in a 2 × 2 factorial design. Four treatments and three replicates per treatment with 12 hens per replicate were used. Egg production was recorded daily while egg weight was assessed on 13th and 14th day of each two-week period to calculate total egg mass. Total excreta were collected and approximately 10% of the amount was used for analysis after drying in a forced draft oven. The results showed no significant effect of added phytase on excreta Calcium (Ca) content, but significantly lower Magnesium (Mg) content was observed with phytase (3.54, 2.48, 3.13 and 2.75 % for hens fed 14% CP no phytase, 14% CP + phytase, 17% CP no phytase, and 17% CP + phytase, respectively). Added phytase also significantly decreased Mg excretion measured as grams/kg of egg mass (21.43, 12.47, 16.76 and 14.75 g/kg egg mass for hens of respective dietary treatments. Phytase had a strong effect on Zink (Zn) levels with 438.96, 369.17, 434.38 and 374.58 mg Zn/kg dry excreta of hens. Similar results were observed with Cu. Added phytase significantly reduced the excreta content and the excretion of Cu. The results of this experiment indicate that adding 600 FTU to laying hen diets containing 14% CP decreases the excretion of Mg, Zn and Cu without any adverse effects on the egg mass produced of laying hens.

scholarly journals Effect of protein and energy levels in a constant ratio supplemented with methionine and lysine on performance of layers and on egg quality.

1980 ◽  
Vol 28 (1) ◽  
pp. 29-35
Author(s):  
A.R. El Boushy ◽  
L.G.M. van Gils ◽  
M.C. Papadopoulos
Keyword(s):  
Feed Intake ◽  
Crude Protein ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Energy Levels ◽  
Metabolizable Energy ◽  
Constant Ratio ◽  
Feed Conversion ◽  
Egg Weight

Twenty groups of 36 laying hens in individual cages were fed on one of 5 diets in which the energy:protein ratio was constant. Diets 1 to 5 had crude protein 12.0, 12.9, 14.0, 15.0 and 16.0% and metabolizable energy 8.71, 9.57, 10.27, 11.10 and 11.70 MJ/kg. From 24 to 64 weeks old, egg production of hens given diets 1 to 5 was 71.46, 71.31, 72.51, 71.13 and 69.99%, respectively. Corresponding values of mean egg weight, weekly feed intake and efficiency of feed conversion were 60.51, 60.47, 61.11, 61.02, 61.07 g; 157.16, 147.56, 142.03, 130.37, 126.72 g; 3.674, 3.460, 3.262, 3.031, 3.014 kg feed/kg egg, respectively. (Abstract retrieved from CAB Abstracts by CABI’s permission)

Effect of feeding different levels of lysine and protein on the performance of WLH layers

2017 ◽  
Author(s):  
Naga Raja Kumari K ◽  
Ravinder Reddy V ◽  
Chinni Preetham V ◽  
Srinivas Kumar ◽  
D.Sen A.R. ◽  
...  
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Feed Efficiency ◽  
Egg Production ◽  
Egg Mass ◽  
Egg Weight ◽  
Protein Levels ◽  
Lysine Concentration ◽  
Different Levels ◽  
Effect Of Feeding

A trial was conducted to evaluate the requirement of digestible lysine at various protein levels in the diet of WLH layers (BV-300) from 25-44 weeks of age. Layers (528) were fed with diets containing two protein levels i.e. 13.36 and 15.78 % each with 5 % concentration variations of lysine (0.50, 0.55, 0.60, 0.65, and 0.70) and a control with 17 % CP and 0.70 % lysine. Each diet was fed to six replicates of eight birds. Egg production, feed intake, body weight were not influenced either by the concentration of lysine or by level of protein in diet. Increased (P d” 0.05) egg weight and egg mass were observed with increasing lysine in diets. Better feed efficiency was observed with increasing lysine concentration. It can be concluded that WLH layers require approximately 0.65% lysine with 13.36% CP or 0.63% lysine with 15.78% CP (i.e. 598.80 vs 570 mg/h/day) in diet.

scholarly journals Production performance and egg quality of White Rock laying hens fed diets containing whole linseed

2020 ◽  
Vol 20 (1-2) ◽  
pp. 48-53
Author(s):  
H Khatun ◽  
MN Islam ◽  
MA Rashid ◽  
MY Ali ◽  
MSK Sarker
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Control Diet ◽  
Production Performance ◽  
Egg Mass ◽  
Feed Conversion ◽  
Egg Weight ◽  
Quality Aspects ◽  
Significant Difference

This study was conducted to know the production performance of laying hen by using different graded level of linseed. At 56 weeks of age, a total of 160 laying hens were raised up to 63 weeks of age. All hens were fed a basal corn soyabean meal diet. The experiment was allowed 4 dietary treatments (T0, no addition of whole linseed in the basal diet; T1,  addition of 5% whole linseed; T2, addition of 10% whole linseed and T3, addition of 15% whole linseed) with 5 replications and per replication contains eight hens. Egg production, feed intake, egg weight of each treatment was recorded. Egg samples were collected and analyzed for egg quality. The results showed that egg production and egg mass (kg) exhibited for all dietary treatment groups were unaffected (P>0.05) by feeding linseed to the laying hens. Feed Conversion Ratio (FCR) was found significant difference within the four dietary group (P<0.05). Egg quality aspects such as yolk weight, egg weight, HU and yolk index were not differed significantly (P>0.05) among treatments.  A trend for lower yolk weight was observed in birds fed 10% linseed, where as the highest yolk weight percentage was recorded in control diet. There was no statistical difference among the different diets for yolk index. The results of the present trial suggested that feeding linseed to the laying hens has no detrimental effects on egg production and egg quality. Bangladesh J. of Livestock Res. 20(1-2): 48-53, Jan-Dec 2013

The performance of laying hens on diets using barley as the main energy source

1973 ◽  
Vol 13 (62) ◽  
pp. 251 ◽  
Author(s):  
EA Dunstan
Keyword(s):  
Energy Source ◽  
Protein Content ◽  
Crude Protein ◽  
Egg Production ◽  
Laying Hens ◽  
Metabolizable Energy ◽  
The Other ◽  
Crude Protein Content ◽  
Egg Weight ◽  
Equal Energy

An experiment compared egg production on a diet using a mixture of wheat, barley, and oats as the grain portion, with a diet in which the wheat and oats were replaced with barley. A comparison between sundried and dehydrated lucerne meal was included. A second experiment compared the same formulations of barley and mixed grain diets as used in the first experiment, and a mixed grain diet of higher crude protein content. Replacing wheat and oats with barley in an otherwise unchanged diet did not significantly affect the number of eggs produced but did increase the average egg weight by 1.1 g in both experiments, significantly so in one experiment, but not in the other. Increasing the crude protein content of the mixed grain diet did not significantly affect either egg production or egg weight. Consumption of the barley diet was greater than the mixed grain diets. This increase in consumption was less than would have been expected on the basis of equal energy intakes, indicating that the metabolizable energy value of the barley used was greater than values previously published for barley. No differences were found in performance between sundried and dehydrated lucerne meal.

scholarly journals The Effects of Different Levels Chlorell Microalgae on Performance and Immune Response of Laying Hens Under Heat Stress Condition

2015 ◽  
Vol 9 (2) ◽  
pp. 71-74 ◽  
Author(s):  
Nasroallah Moradi Kor ◽  
Neda Mohamadi
Keyword(s):  
Immune Response ◽  
Heat Stress ◽  
Egg Production ◽  
Stress Condition ◽  
Linear Models ◽  
Laying Hens ◽  
Egg Mass ◽  
Randomized Design ◽  
Heat Stress Condition ◽  
Different Levels

This study was conducted to determine the effects of different levels microalgae Chlorell sp. on performance of laying hens under heat stress condition. A completely randomized design experiment, with 7 replicates and 6 treatments (9 birds per replicate) was carried out by allotting 378 white Lohman strain laying hens at 65 weeks of age. Six experimental treatments were continual addition of 0, 100, 200, 300,400 ppm microalgae Chlorell and 400 ppm toein to drinking warer were fed to laying hens for 9 weeks. Egg production, egg weight, egg mass output and feed intake were determined. Antibody production against sheep red blood cells (SRBC) also was measured. Data  were  analyzed  by  ANOVA  using  General  Linear Models procedure of  SAS software and comparison of means  were  compared  using  Duncan’s  multiple  range test. The results of this experiment showed that microalgae Chlorell had no effect on productive performance. Adding microalgae Chlorell to the drinking water improved immune response of laying hens and a more positive effect was observed when 400 ppm added to the water. It is concluded that the addition of microalgae Chlorell to the water drinking of laying hens improved immune response of laying hens.DOI: http://dx.doi.org/10.3126/ijls.v9i2.12058 International Journal of Life Sciences 9 (2) : 2015; 71-74

scholarly journals Effect of Date Palm Pollen Supplementation on the Egg Production, Ovarian Follicles Development, Hematological Variables and Hormonal Profile of Laying Hens

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 69
Author(s):  
Mohamed Saleh ◽  
Dariusz Kokoszyński ◽  
Mohamed Abd-Allah Mousa ◽  
Ahmed Abdel-Kareem Abuoghaba
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Ovarian Follicle ◽  
Basal Diet ◽  
Ovarian Follicles ◽  
Control Group ◽  
Egg Mass ◽  
Egg Weight ◽  
Hormonal Profile ◽  
Ovarian Follicle Development

This experiment studied the effect of DPP supplementation in the laying hens’ diet on the ovarian follicle development, hematological variables and hormonal profile of laying hens. Eighty-four, 78-week-old, Lohman LSL hybrids layers were equally divided into four groups (4 groups × 7 replicates × 3 hens); hens in the 1st group were fed a basal diet (control), while those in the 2nd, 3rd and 4th groups, were fed on the same diet and supplemented with 1.25, 2.5 and 5.0 g DPP/kg diet. The results showed that the egg weight, egg mass and laying rate of laying hens treated with DPP levels were significantly increased compared to those of the hens in the control group. Egg weight, egg surface area, albumen quality and percentage of the yolk in treated hens significantly increased compared with controls. The increased DPP levels in laying hens‘ diet significantly (p < 0.05) increased WBC, Hb and TAC, while heterophil/lymphocyte (H/L ratio) significantly decreased. Additionally, the concentrations of FSH and LH and the weights of ovary and oviduct in the treated hens significantly (p < 0.05) increased compared with the control. In conclusion, the DPP supplementation in the hen diet significantly improved egg production, EW, H/L ratio, ovarian follicles, FSH and LH hormones concentrations.

EFFECT OF YEAST (CANDIDA UTILIS) ON THE COMMERCIAL LAYER HEN’S LIVE WEIGHT AND EGG PRODUCTION

2015 ◽  
Vol 13 (2) ◽  
pp. 114-116
Author(s):  
J Rentsenkhand ◽  
N Togtokhbayar
Keyword(s):  
Feed Intake ◽  
Egg Production ◽  
Candida Utilis ◽  
Laying Hens ◽  
Live Weight ◽  
Egg Weight ◽  
Agricultural Sciences ◽  
Weight One ◽  
Dietary Treatments ◽  
To Receive

In order to investigate the effect of a yeast on laying hens performance and live weight, one hundred Rodonit-3 breed laying hens (75 week of age), were selected and randomly allocated to 25 pens containing 4 laying hens each with 6 replicates and assigned to receive one of 4 dietary treatments (1. Control, 2. Yeast 2%, 3.Yeast 4%, 4.Yeast 6%). The results showed that egg production and egg weight not significantly different, live weight and feed intake significant differences.Mongolian Journal of Agricultural Sciences Vol.13(2) 2014: 114-116

scholarly journals Flour of mushroom Agaricus blazei as additive functional in food of laying hens

2019 ◽  
Vol 20 ◽  
Author(s):  
Iolanda Silveira Freitas ◽  
Michele de Oliveira Mendonça ◽  
Izabela Silveira Freitas ◽  
Onofre Barroca de Almeida Neto ◽  
David Garcia Ferreira ◽  
...  
Keyword(s):  
Immune System ◽  
Feed Intake ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Experimental Unit ◽  
Egg Mass ◽  
Agaricus Blazei ◽  
Feed Conversion ◽  
Different Levels

SUMMARY The current study aims to evaluate the zootechnical performance, quality of eggs, and the immune system of the laying hen's upon supplementing their feed with the flour of the mushroom Agaricus blazei. A total of 210 Hisex Brown® hens, 67 weeks old, were distributed in a completely randomized design with five treatments (control [0%], 0.04%, 0.08%, 0.12% and 0.16% of mushroom meal) with seven replicates and six birds per experimental unit. Were evaluated the zootechnical performance (feed intake, egg production [per day and housed], marketable egg production, egg weight and egg mass, feed conversion per dozen and egg mass, and viability);egg quality (specific weight, Haugh units, weight and percentage of components, shell thickness and yellow intensity of the egg yolks); and the hemogram (erythrogram and leukogram). Mainly, different levels of mushroom meal, were includedin laying hens feeds significantly (p<0.05)egg mass and feed intake. However, the leukogram and the erythrogram remained within the reference values, indicating that the birds were healthy. The addition of different levels of Agaricus blazei flour in the laying hens feed did not promote changes in the egg quality, in the immune system, and in the zootechnical performance, except for the feed intake which reduced with the inclusion of mushroom flour and eggs mass in which the 0.07% level promoted the maximization of this parameter.

scholarly journals Effect of Calcium Sources and Particle Size on Performance and Eggshell Quality in Laying Hens

2014 ◽  
Vol 3 (4) ◽  
pp. 205 ◽  
Author(s):  
Arzu Erol Tunç ◽  
Yusuf CUFADAR
Keyword(s):  
Particle Size ◽  
Egg Production ◽  
Laying Hens ◽  
Oyster Shell ◽  
Egg Mass ◽  
Mineral Contents ◽  
Egg Weight ◽  
Eggshell Quality ◽  
Calcium Sources ◽  
Egg Shell

An experiment was conducted to determine the effect of different combination calcium sources and particle size on performance and egg shell quality in layer hens. In the experiment, 198 brown laying hens at 44 week of age were randomly assigned into 11 treatments groups. The experimental diets consisted of different calcium sources (Fine limestone, large limestone, large oyster shell and large egg shell) and their different combination. The experimental unit consisted of a groups of three hens, thus each treatment was replicated six times. Different calcium sources and particle size addition to the laying hens diet had no significantly effect on body weight gain, egg production, egg mass, feed intake, feed conversion ratio, egg specific gravity, egg shell weight, egg shell thickness and egg shell breaking strength but egg weight had significantly affected by the treatments. The significantly highest egg weight was found in laying hens fed with 50 % fine limestone and 50 % large limestone. Dietary different Ca sources had a significant effect on Ca, P and Mg as mineral contents of eggshell and tibia. In the present study, when dietary large calcium sources (limestone, oyster shell and egg shell) had no effect on performance and eggshell quality parameters in laying hens. However, dietary containing at least 50 % large calcium sources had positive effect on mineral contents of tibia.

scholarly journals Nitrogen-Corrected Apparent Metabolizable Energy Value of Crude Glycerol for Laying Hens / Współczynnik Metaboliczności Energii Surowej Gliceryny Dla Kur Nieśnych

2013 ◽  
Vol 13 (4) ◽  
pp. 829-836 ◽  
Author(s):  
Klaudia Németh ◽  
Eszter Zsédely ◽  
János Schmidt
Keyword(s):  
Egg Production ◽  
Crude Glycerol ◽  
Laying Hens ◽  
Basal Diet ◽  
Metabolizable Energy ◽  
Egg Mass ◽  
Adaptation Period ◽  
Feed Conversion ◽  
Apparent Metabolizable Energy ◽  
Dietary Treatments

Abstract An experiment was conducted with 64 Tetra SL laying hens (placed into four groups) to determine the AMEn value of feed grade crude glycerol (DM 92%; glycerol 86.80%; methanol 0.04%; fat 0.49%; ash 4.67%; GE 15.59 MJ/kg). All groups were given a 100 g basal diet per day (AMEn value 11.46 MJ/kg; protein 16.97%; Ca 3.49%; P (non-phytate) 0.56%; lysine 0.82%; methionine 0.40%; cysteine 0.29%; threonine 0.60%; tryptophan 0.19%), which was supplemented with 5%, 7.5% and 10% glycerol for the three experimental groups. Hens were placed in metabolism cages (4 hens/treatment in four replicates). After a 10-day adaptation period, excreta was collected and weighed individually for 10 days. The AMEn value of crude glycerol (86%) was calculated as 15.30 MJ/kg for laying hens. During the experiment, egg production (90.0-90.8%), egg weight (56.8-58.0 g) and egg mass (51.2-52.7 g) were not affected by dietary treatments. Feed conversion was significantly reduced by a 10% glycerol supplementation. We concluded that crude glycerol’s energy is efficiently used by laying hens, and more efficiently than by broilers. The established 15.30 MJ/kg AMEn value of crude glycerol when fed in the daily ration to laying hens means that they utilized 97.6% of the glycerol’s GE content.

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