Performance of laying hens fed wheat, wheat-barley or wheat-barley-wheat bran based diets supplemented with xylanase

2002 ◽  
Vol 82 (2) ◽  
pp. 193-199 ◽  
Author(s):  
N. Mathlouthi ◽  
M. Larbier ◽  
M. A. Mohamed ◽  
M. Lessire
Keyword(s):  
Wheat Bran ◽  
Egg Production ◽  
Laying Hens ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Metabolizable Energy ◽  
Low Energy ◽  
Egg Mass ◽  
Feed Conversion ◽  
Low Energy Diet

Two experiments were conducted to study the response of laying hens to a commercial enzyme preparation (Safizyme XP20) containing 70 000 IU g-1 xylanase. In the first experiment, 270 laying hens (ISA Brown), aged 28 wk, were fed basal diets of wheat (W), wheat-barley (WB) or wheat-barley and wheat bran (WBB) without xylanase, or supplemented with 1400 IU xylanase kg-1 in 3 × 2 factorial arrangement. In the second experiment, 180 ISA Brown laying hens, aged 28 wk, were assigned to 2 × 2 factorial arrangement and fed wheat-based diets containing 2753 or 2653 kcal metabolizable energy (ME) kg-1 without xylanase, or supplemented with 1400 IU xylanase kg-1. Egg production (% hen-day), egg weight, egg mass, feed conversion ratio and changes in body weight were recorded for 12 wk. The effects of xylanase on true metabolizable energy (TME) values of wheat, barley and wheat bran were determined using roosters. Layers fed W-, WB- or WBB-based diets had similar egg mass. The feed conversion ratio of layers fed the WBB-based diet was better (P ≤ 0.05) than that of the other groups. Xylanase improved (P ≤ 0.05) egg mass of layers fed W- or WB-based diets, but it did not affect the performance of hens fed the WBB-based diet. Low dietary ME significantly (P ≤ 0.05) reduced the performance of laying hens. Xylanase supplementation improved (P ≤ 0.05) egg production, egg mass and feed conversion ratio of layers fed the low energy diet. It did improve the feed conversion ratio of layers fed the high-energy diet. Addition of 1400 IU xylanase kg-1 to the low-energy diet was equivalent to an increase of at least 100 kcal ME kg-1. Xylanase increased (P ≤ 0.05) the TME values by 5.2 and 2.44% for wheat and barley, respectively, and did not affect the TME value of wheat bran. Key words: Xylanase, hens, laying, wheat, barley, wheat bran, metabolizable energy.

scholarly journals Use of faba beans (Vicia faba L.) in diets of laying hens

2014 ◽  
Vol 23 (3) ◽  
pp. 165-172 ◽  
Author(s):  
Erja Koivunen ◽  
Petra Tuunainen ◽  
Eija Valkonen ◽  
Laila Rossow ◽  
Jarmo Valaja
Keyword(s):  
Faba Bean ◽  
Mass Production ◽  
Egg Production ◽  
Laying Hens ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Production Performance ◽  
Feed Consumption ◽  
Egg Mass ◽  
Feed Conversion

The study was conducted to evaluate an appropriate inclusion level of locally produced unprocessed or expander-processed coloured flowered faba bean (FB) (cv. ‘Kontu’) seeds in diets for laying hens. Egg production and egg quality variables were determined with 560 hens (Lohmann Selected Leghorn, LSL Classic) in a 40-week continued experiment. The hens were fed one of the five diets containing soybean meal as the main protein source. A diet without FB was served as a control diet. Both unprocessed and expander-processed FB was tested either in proportions of 50 g kg-1 or 100 g kg-1 in the diet. Faba bean inclusion (control vs. FB diets) had no effect on the egg production rate, egg mass production, feed consumption, or feed conversion ratio, but it decreased egg weight (p<0.05). Dietary FB inclusion tended to increase the mortality of the hens (p<0.10). Faba bean processing had no effects on egg production parameters or hen mortality. Daily egg mass production decreased and feed conversion ratio increased when FB proportion increased (from 50 to 100 g kg-1, p<0.05). Faba bean inclusion had no effects on egg exterior quality. It can be concluded that 50 g kg-1 of the FB studied (cv. ‘Kontu’) can be used in the diets of laying hens (LSL Classic) without negative effects on production performance or livability.

scholarly journals Metabolizable energy levels for semi-heavy laying hens at the second production cycle

2009 ◽  
Vol 38 (5) ◽  
pp. 857-862
Author(s):  
Fernando Guilherme Perazzo Costa ◽  
Janaine Sena da Costa ◽  
Cláudia de Castro Goulart ◽  
Denise Fontana Figueiredo-Lima ◽  
Raul da Cunha Lima Neto ◽  
...  
Keyword(s):  
Energy Level ◽  
Feed Intake ◽  
Egg Production ◽  
Laying Hens ◽  
Energy Levels ◽  
Metabolizable Energy ◽  
Production Cycle ◽  
Egg Mass ◽  
Feed Conversion

This study was carried out to evaluate the energy levels in the diet to obtain better performance rates and quality of eggs from laying hens in the second production cycle. One hundred and eighty Bovans Goldline laying hens with 62 weeks of age were used during four 28-day periods. A completely randomized experimental design was used with four metabolizable energy levels (2,650, 2,725, 2,800, 2,875 and 2,950 kcal/kg), each with six replicates of six birds. The energy level of diet did not affect the weight of the egg, yolk, albumen and eggshell, the percentages of yolk, albumen and eggshell, yolk color and egg specific gravity. Feed intake, egg production, egg mass and feed conversion per egg mass and per dozen eggs increased significantly with increasing levels of metabolizable energy. Feed intake decreased linearly as the energy level in the diet increased. The metabolizable energy levels showed a quadratic effect on egg production, egg mass and feed conversion per egg mass and per dozen eggs. The metabolizable energy level of 2,830 kcal/kg was the most appropriate to promote better performance and quality of eggs from laying hens in the second production cycle.

scholarly journals Performance and Egg Qualities of Isa-Brown Layers Fed Different Quantities of Feed at Varying Feeding Frequencies

2020 ◽  
Vol 8 (4) ◽  
pp. 864-872
Author(s):  
Muyiwa Adegbenro ◽  
Abiodun S. Ajidara ◽  
Stephen G. Modupe ◽  
Gbenga E. Onibi
Keyword(s):  
Experimental Design ◽  
Laying Hens ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Egg Mass ◽  
Feed Conversion ◽  
Laying Performance ◽  
Net Profit ◽  
Randomized Experimental Design ◽  
Poultry Farmers

Most poultry farmers in Nigeria feed their laying birds twice a day with one bag of 25 kg to 200 layers which translate to 125g/bird/day, while very few feed once or thrice a day and there has been little or no documentation on how many times laying hens should be fed in a day to optimize profit. Thus, this study was designed to investigate the performance and egg qualities of Isa-Brown layers fed different quantities of feed at varying feeding frequencies. Three hundred and sixty (360) 16-weeks in-lay Isa-Brown layers were used in this trial. The treatment consisted of 95g, 105g, 115g, and 125g of feed per day at varying frequencies of once, twice and thrice per day. The birds were housed in California type cages, 3 birds per cage unit, 5 cage units per replicate, and 6 replicates per treatment. A completely randomized experimental design with a 4x3 factorial was adopted. Results at the end of the trial showed that bird fed 115g of feed twice per day had the highest percentage hen-day production (85.24%), highest egg mass (56.69g) and best feed conversion ratio (1.96) while lowest percentage hen-day production (62.02%) and lowest egg mass (39.22g) were observed in hen fed 95g of feed thrice per day and worst feed conversion ratio (2.50) was recorded in bird fed 125g of feed thrice per day. The bird fed 115g twice per day had the highest net profit (N637.63) while the lowest net profit (N199.33) was recorded in bird fed 125g thrice per day. It could be concluded that for optimum laying performance and to save time and labour expended in feeding birds thrice per day, feeding laying Isa-Brown birds the required feed quantity (115g) twice per day would be most economical.

scholarly journals Effects of perch on feed consumption and behaviour of caged laying hens

2009 ◽  
Vol 18 (3-4) ◽  
pp. 257-267 ◽  
Author(s):  
E. VALKONEN ◽  
R. RINNE ◽  
J. VALAJA
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Conversion Ratio ◽  
Light Period ◽  
Feed Conversion Ratio ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Cage Floor ◽  
Instantaneous Sampling ◽  
Advantageous Effect

This experiment studied the effects of perches in furnished cages on behaviour and feed consumption of laying hens. The study used 352 Lohmann Selected Leghorn (LSL) hens. The hens were housed at 16 weeks of age in furnished cages in groups of 8 birds. The experiment lasted for 205 days. The treatments were: perches present from 16 weeks of age (P16), perches present from 19 weeks of age (P19), and no perches present (NP). Feed consumption and egg production were measured over the pre-laying period and six 4-week laying periods. The number of hens on perch, in nest and litter box was recorded at various ages. The behaviour of 3 hens per treatment was observed using instantaneous sampling at every 5 minutes, so that the observations of each hen covered one light period (14.5 hours). The treatments had no significant effects on feed consumption after the pre-laying period. Feed conversion ratio (kg feed kg-1 eggs) was favourable in P16 in comparison to NP during the periods 2–4. During the observations after the lights-out NP birds tended to be more frequently in nests, than P16 birds. NP birds spent more time on the cage floor, were recumbent more often, and sitting more rarely in comparison to P16 birds. Based on the results of this study, perches may have advantageous effect on feed conversion ratio in furnished cages.;

scholarly journals The effect of enzyme and protein source on laying hens performance, eggshell and bone traits

2019 ◽  
pp. 353 ◽  
Author(s):  
Marta Kubiś ◽  
Lidia Lewko ◽  
Sebastian Andrzej Kaczmarek ◽  
Sebastian Nowaczewski ◽  
Marcin Hejdysz, Andrzej Rutkowski
Keyword(s):  
Elastic Deformation ◽  
Egg Production ◽  
Laying Hens ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Protein Source ◽  
Available Phosphorus ◽  
Feed Conversion ◽  
Yellow Lupine ◽  
Tibia Ash

The aim of the study was to investigate the interaction between exogenous phytase with protease and protein source in laying hens diet. A completely randomised design study with a 2 × 4 factorial arrangement was conducted to observe effects of protein source (soybean vs. yellow lupine seeds diet) and enzyme addition (no enzyme vs. phytase or protease or both) on laying hens performance, bone mineralization and some egg traits. One hundred sixty Hy-Line Brown hens at the age of 18 weeks were weighed and randomly assigned to 10 treatments, each with 16 birds. According to the producer recommendation in diets containing enzymes reduced the level of available phosphorus (50% reduction) and digestible amino acids - 5% reduction. The egg production during the entire experiment was similar in all groups without significant differences. The egg weight was also on an equal level in all treatments and it was about 58g. Birds fed different protein source were characterized by similar feed intake and feed conversion ratio during the whole experiment. The feed conversion ratio (FCR) was about 1.9-2.0 in all groups. Tibia ash was affected by enzymes supplementation. There was an interaction between protein source and enzymes addition. Birds from treatments fed with yellow lupine meal (YLM) diets reached highest tibia ash level in a group with phytase addition and in groups with SMB in a group with phytase and protease mix. The inclusion of enzymes improved the thickness of the shell. There was an interaction between protein source and enzyme inclusion. It was an interaction between experimental factors in shell breaking strength. Stronger eggshell was laid by hens from groups fed with the inclusion of yellow lupine meal. Addition of phytase had a positive impact on increasing the strength of eggshell. Only inclusion of enzymes affected significantly on shell elastic deformation in part I of eggs. Eggs from hens fed diets with inclusion of protease and phytase mix were most resistant to elastic deformation.

Utilisation of giant taro (Alocasia macrorrhiza) root meal with or without coconut oil slurry by layers and broilers

2018 ◽  
Vol 58 (2) ◽  
pp. 284 ◽  
Author(s):  
Siaka S. Diarra
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Coconut Oil ◽  
Bodyweight Gain ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Egg Mass ◽  
Feed Conversion ◽  
Improve Performance ◽  
Poultry Diets

Replacements of maize with Alocasia macrorrhiza root meal (AMRM) with or without added coconut oil slurry (COS) in poultry diets were investigated in a series of two experiments. In Experiment 1, the replacement of maize with two levels (10% and 20%) each of AMRM and AMRM–COS on egg production and egg quality was investigated. Experiment 2 investigated the same treatments as in Experiment 1 on broiler performance. In both experiments, each diet was fed to four replicates of 10 birds in a completely randomised design. There was no marked effect on feed intake (FI) in both experiments (P > 0.05). In Experiment 1, percentage hen-day production and feed conversion ratio were depressed (P < 0.05) on 20% AMRM and egg weight on 10% AMRM, but these depressing effects were overcome by COS addition. Egg mass was significantly (P < 0.05) increased on 20% AMRM–COS compared with the other AMRM groups, but did not differ (P > 0.05) between the control and AMRM–COS. Haugh unit and percentage shell were not affected by the treatment (P > 0.05). In Experiment 2, bodyweight gain was significantly (P < 0.05) reduced with the inclusion of AMRM in the diet, with the lowest gain on 20% AMRM–COS. Feed conversion ratio was adversely affected when AMRM was included at a concentration greater than 10% of dietary maize (P < 0.05). Coconut oil-slurry treatment of the meal did not improve performance. It was concluded that inclusion of AMRM at a concentration greater than 10% dietary maize adversely affects the performance of both layers and broilers. Treatment of AMRM with COS at 9 : 1 overcomes these adverse effects in laying hens, but not in broilers. More research is warranted on the effects of higher concentrations of COS-treated AMRM in the diet on layers, and on processing methods that will improve performance of poultry.

scholarly journals EFFECT OF ENZYME SUPPLEMENTING AND SOAKING TO THE DIETS OF THE LAYING HENS CONTAINING CORN AND WHAET ON PRODUCTIVE PERFORMANCE

2017 ◽  
Vol 48 (2) ◽  
Author(s):  
Al Rubaee & et al.
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Agricultural Research ◽  
Conversion Ratio ◽  
Metabolic Energy ◽  
Control Group ◽  
Egg Mass ◽  
Research Station ◽  
Productive Performance ◽  
Feed Conversion

This study was conducted at Poultry Research Station Animal–State Board of Agricultural Research/ Ministry of Agricultural, which included two experiments to study the effect of enzyme supplementing and soaking to the diets of the laying hens containing corn and wheat on productive performance. Three hundred Brown-egg hens (ISA Brown) 40 weeks-old were used in this experiment after introductory period for two weeks. Layer hens distributed randomly to ten treatments with 2 replicates (15 hens per replicate); And fed on diets equal protein and metabolic energy according to the age periods in ISA guide. Treatments were as follows: Treatment 1: Control group (100 % corn).Treatment 2: 100% corn with soaking. Treatment 3 : 100% corn with enzymes. Treatment 4:100% corn with soaking and enzymes. Treatment 5: 33% corn replacement wheat with soaking. Treatment 6 : 33% corn replacement wheat and with enzymes. Treatment 7 : 33% corn replacement wheat with soaking and enzymes. Treatment 8: 66% corn replacement wheat  with soaking. Treatment 9: 66% corn replacement wheat with enzymes. Treatment 10 :66% corn replacement wheat with soaking and enzymes. The results showed a significant differences between treatments in egg production (HD%), egg weight, egg mass and feed conversion ratio. Supplementary enzyme with soaking indicate a  significant increase in productive performance. 

scholarly journals Effect of the use of flaked maize in diets with reduced metabolic energy on performance, egg quality, and serum parameters in layer quails

2021 ◽  
Vol 17 (1) ◽  
pp. 1-12
Author(s):  
Osman Olgun ◽  
Esra Tuğçe Şentürk ◽  
Alpönder Yıldız
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Energy Levels ◽  
B Value ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Metabolic Energy ◽  
Egg Mass ◽  
Feed Conversion ◽  
Serum Parameters

<b>The research was conducted to determine the effects of substituting raw maize with flaked maize in diets containing different levels of metabolic energy on the performance, egg quality, and serum parameters of layer quails. In the experiment, 120 female quails at ten weeks of age were randomly allocated to six treatment groups with four replicates, each consisting of five quails. The quails were fed six diets, with two forms of maize (raw or flaked) and three metabolic energy levels (2750, 2825 or 2900 (control) kcal/kg) during a ten-week trial. Compared with the control group, reducing the metabolic energy level of the diet to 2750 kcal/kg negatively affected egg production (P < 0,01), egg mass (P < 0,01), feed conversion ratio (P < 0,01), and serum cholesterol concentration (P < 0,05). Eggshell thickness decreased significantly in the group receiving 2750 kcal/kg metabolic energy in the diet, and the yolk b* value increased significantly (P < 0,01). The use of flaked maize in the diets significantly increased egg production (P < 0,05), egg mass (P < 0,05), eggshell thickness (P < 0,05), and yolk L* value (P < 0,01) and significantly decreased the feed conversion ratio (P < 0,05) and b* value of the yolk (P < 0,05). Although the effects of the interactions of the metabolic energy levels and forms of maize on the egg yolk b* value were significant (P < 0,01), this effect was not significant for the other parameters. The results indicate that layer quails can be fed diets containing 2825 kcal/kg metabolic energy and that replacement of raw maize with flaked maize in the diet positively affects performance and egg quality.

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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