scholarly journals Investigation of Intestinal Enzyme Activity and Effects of Non-starch Polysaccharide on it

2018 ◽  
Vol 7 (4.7) ◽  
pp. 28
Author(s):  
Masoumeh Piryaei ◽  
Anahita Motamedi ◽  
Atefeh Mehrabi Far
Keyword(s):  
Enzyme Activity ◽  
Egg Production ◽  
Laying Hens ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Metabolic Energy ◽  
Feed Conversion ◽  
Intestinal Enzymes ◽  
Enzymes Activity ◽  
Intestinal Enzyme

This experiment investigates the effects of utilizing Rahnama cultivar with high non-starchy polysaccharide content and supplementation of xylanase enzyme in poultry feed on the productivity features, nutrient digestibility and intestinal enzymes activity of 21-47 week laying hens. The experiment was conducted quite randomly and in factorial design that included eight treatments with 4 wheat levels (zero, 23, 46 and 69% that contained 1.8, 2.0, 2.2, 2.4% of xylose respectively) and two level enzymes (with and without enzyme) and 5 replications (6 hens) in each replication. During the experiment, by xylose level increase in diet, the weight (p>0.05) and mass of the egg (p>0.01) decreased and feed conversion ratio increased (p>0.05) but there was no effect on feed consumption and egg production rate. Diet supplementation with xylanase resulted in egg production increase (p>0.05), weight and mass increase of eggs (p>0.01) and improved feed conversion ratio (p>0.01). Xylose levels increase resulted in decrease in fat and metabolic energy digestibility of the diet (p>0.05); and, amylase enzymes activity in duodenum and amino peptidase, and lipase in duodenum and jejunum (p>0.01) increased. However, xylanase supplement had no effect on any intestinal enzymes. Diet supplementation with xylanase decreased viscosity of ileum (p>0.01). Increased xylanase level in diet resulted in decreased productivity features of laying hens, increased intestinal enzyme activity and decreased fat and metabolic energy digestibility.   

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.

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.

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 The Effect of Acidifier-Dextrose against Hen Day Production and Feed Conversion Ratio in Laying Hens Infected with Avian Pathogenic Escherichia coli

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Sunaryo Hadi Warsito ◽  
Emy Koestanti Sabdoningrum ◽  
Nana Tripalupi ◽  
Ayu Nur Hidayati ◽  
Anwar Ma’ruf ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Drinking Water ◽  
Egg Production ◽  
Laying Hens ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Avian Pathogenic Escherichia Coli ◽  
Pathogenic Escherichia Coli ◽  
Production Period

Colibacillosis in Indonesia until now still appears frequently, so the case of colibacillosis laying hens cannot reach the peak of egg production; the egg production period is delayed and easily infected with other diseases. The purpose of this research is that the acidifier-dextrose combination is expected to be able to suppress the development of Avian Pathogenic Escherichia coli (APEC) bacteria in laying hens so that, in the end, the case of colibacillosis can be controlled in Indonesia. A total of 240 heads of laying hens were divided into 6 treatments and each consisted of 40 replications. The results of this research state that a combination of acidifier-dextrose can increase Hen Day Production ( p < 0.05 ) and decrease Feed Conversion Ratio ( p < 0.05 ) in laying hens infected with APEC. The Hen Day Production results of the treatment group infected with APEC showed the lowest results, amounting to 65.75% whereas the other treatments are still above 90%. Furthermore, the highest Feed Conversion Ratio results were on treatments infected with APEC, which amounted to 2.17 while other treatments of the Feed Conversion Ratio results are still below 1.80. In general, the use of a combination of acidifier and dextrose with the lowest dose, that is, 1 g/3.75 liters of drinking water can still give good results to Hen Day Production and Feed Conversion Ratio for laying hens infected with APEC. Giving combination of acidifier-dextrose can increase Hen Day Production and decrease Feed Conversion Ratio in laying hens infected with APEC. The recommended dosage of acidifier-dextrose combination in laying hens based on this research is 1 g/3.75 liters of drinking water.

scholarly journals Produktivitas Ayam Petelur Strain Isa Brown Pada Umur 24 – 28 Minggu

2019 ◽  
Vol 1 ◽  
pp. 26-31
Author(s):  
D Sulaiman ◽  
N Irwani ◽  
K Maghfiroh
Keyword(s):  
Mortality Rate ◽  
Key Words ◽  
Egg Production ◽  
Laying Hens ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Production Capability

Laying hens are adult hens that are specially kept for their eggs. This chicken has a high egg production capability. The purpose of this thesis is to determine the level of productivity of ISA Brown strain laying hens aged 24-28 weeks, by calculating and comparing ration consumption standards, Hen Day Production (HDP), Feed Conversion Ratio (FCR), and mortality in laying hens CV Bisco Farm Talang Jawa Village, Merbau Mataram District, South Lampung Regency. The method used in the preparation is directly involved in conducting maintenance, discussion, study literature, and direct interviews. Feed consumption is 101 grams/bird /day, daily egg production or Hen Day Production (HDP) averaged 92.77%, the average FCR value was 1.89, and the mortality rate was 0.07%. Key words : layer, egg productivity, performance

scholarly journals Refeeding Postmolting Method to Improve Weekly Production Performance of Rejected Laying Hens with Low Mortality

2020 ◽  
Vol 44 (2) ◽  
Author(s):  
Claude Mona Airin ◽  
Amelia Hana ◽  
Pudji Astuti ◽  
Sarmin Sarmin ◽  
Trini Susmiati ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Egg Production ◽  
Laying Hens ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Production Performance ◽  
Feed Conversion ◽  
Modification Method ◽  
Time Periods ◽  
Production Period

This research aimed to investigate the influence of gradually feeding rejected laying hens after molting on the performance of production. This research used 6,000 rejected laying hens of 80 weeks old in Subur Farm. Molting method was a modification method by reducing the feed gradually. At the beginning of this research, the feed was given 120 g/laying hens/day and it would be reduced by 10 g/laying hens/day until it reach 50 g/laying hens/day. In the next phase, all chickens fasted for seven days then the chicken was given 10 g/laying hens on the first day. The feed was increased 10 g/laying hens every two days up to 120 g/laying hens/day. Data Collection of Feed conversion ratio (FCR), mortality rate, amount of feed, and egg production were taken at the start of re-feeding. The results showed that during the period of molting until refeeding, mortality was 3.6%, an increase in egg production was seen since week 1, peak of production was 78% at week 9 with FCR 2.3.  The results of statistical analysis showed significant differences (P<0.05) on the percentage of egg production between time periods after the treatment of feed reduction. As the conclusion, molting followed by refeeding in rejected laying hen influences weekly production performance by extending peak production period, optimal FCR and daily egg production.

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