Dietary zinc supplementation and the performance and behaviour of caged laying hens

2019 ◽  
Vol 59 (2) ◽  
pp. 331
Author(s):  
Zahra Sorosh ◽  
Somayyeh Salari ◽  
Mohsen Sari ◽  
Jamal Fayazi ◽  
Saleh Tabatabaei
Keyword(s):  
Aggressive Behaviour ◽  
Egg Production ◽  
Laying Hens ◽  
Treatment Time ◽  
Feed Consumption ◽  
Stress Reactions ◽  
Feed Conversion ◽  
Dietary Zinc ◽  
Time Interaction ◽  
Laying Performance

There is considerable behavioural evidence demonstrating stress reactions in birds. Behaviour of birds can affect their performance parameters. Also, nutritional factors may affect the behaviour of laying hens. Dietary deficiencies, such as minerals can increase feather-pecking behaviour and cannibalism. In the present study, we evaluate the effect of dietary zinc (Zn) on performance and behaviour of laying hens with four treatments (40, 70, 100, 130 mg Zn/kg of diet) with 96 Hy-Line W-36 leghorn hens for 10 weeks. The results showed that egg production for hens receiving 130 mg Zn/kg of diet was significantly higher than for those receiving 40 and 70 mg Zn/kg of diet (P < 0.05). Those hens receiving 130 mg Zn/kg of diet had lower feed consumption compared with those that had other treatments (P < 0.05). Dietary inclusion of Zn caused an improvement to feed conversion ratio (P < 0.05). There was a treatment × time interaction on feeding behaviour that hens received 130 mg Zn/kg of diet spent significantly less time at the feeder than the other treatments. Hens receiving 130 mg Zn/kg of diet spent significantly less time drinking than the hens that received 40 and 70 mg Zn/kg of diet. Also, those that received 130 mg Zn/kg of diet did more non-nutritive pecking and preening than the hens that received 40 and 70 mg Zn/kg of diet. High levels of Zn decreased the aggressive behaviour of hens compared with those that received 40 mg Zn/kg of diet (P < 0.05). It can be concluded that Zn can improve laying performance, and can decrease aggressive behaviour.

scholarly journals PSIX-33 Effects of corn protein concentrate levels on egg production and egg quality parameters of commercial layers

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 345-345
Author(s):  
Alfredo Herrera ◽  
Mario Ortiz ◽  
Hector Torrealba ◽  
Christian H Ponce
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Live Weight ◽  
Feed Consumption ◽  
Experimental Unit ◽  
Protein Concentrate ◽  
Feed Conversion ◽  
Corn Protein ◽  
Laying Performance

Abstract This study was conducted to evaluate the effects of corn protein concentrate (CPC) levels in the diets on laying performance, and egg quality of laying hens. A total of 180 64-wk-old laying hens (2.05 kg ± 0.19 kg of live weight) were randomly assigned to 36 cages (5 birds/cage) with separate feeders, including 6 dietary treatments. Birds were fed 1 of 6 experimental diets containing CPC at different levels (0, 0.5, 1.0, 1.5, 2.0 or 2.5%) for 10 weeks. Diets were isocaloric (2850 Mcal/kg) and isonitrogenous (CP, 15.0%), having similar digestible amino acid profile. Hens were weighed at the beginning and at the end of the experiment to determine BW change. Egg production, feed consumption and egg weight were recorded daily, while egg quality variables were evaluated every 14 days. Data were analyzed using the general linear model procedure of SAS in a complete randomized design. The cage was considered the experimental unit. Linear and quadratic effects of treatment were used for mean separation and significance was declared at P ≤ 0.05. Hens fed CPC maintained BW and gain at an increased rate (Quadraic: P < 0.01). Feed intake increased as CPC increased in the diet (Lineal and quadratic: P < 0.01). Egg production, mass and weight were increased as CPC increased in the diet (Quadraic: P < 0.01). Feed conversion rate was improved as CPC increased in the diet (Lineal and Quadraic: P < 0.02). Shell thickness and breaking strength tended to linearly increased as CPC increased in the diet (P < 0.06). Albumen height and Haugh unit were not altered by dietary treatment (P > 0.25). Yolk color was increased as CPC increased in the diet (P < 0.01). Results from this experiment suggest addition of up to 2.5% CPC in the diet enhances egg production and some parameters of egg quality.

scholarly journals Fermentation of Carrot Juice Waste (Daucus carota L) with Probiotics and Utilization in Races of Chicken Layers on Egg Production and Quality

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Nur Endang Sukarini
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Production Performance ◽  
Feed Consumption ◽  
Carrot Juice ◽  
Feed Conversion ◽  
Index Value ◽  
Basal Ration ◽  
Haugh Unit

The aim of this study was to test the use of carrot juice fermentation with probiotics in rations with different levels on the production performance and quality of egg-laying hens. The material used was Lohman Brown strain of laying hens, 27 weeks old with an average initial body weight of 1.69 kg, as many as 45 birds. The research was conducted with experimental methods and used a Complete Design Acal (CRD). The treatment tested was the use of Carrot Extract Fermentation (FLSW) with probiotic SOC in the feed consisting of T1 = 100% basal ration, T2 = basal ration (97.5%) + FLSW (2.5%): T3 = basal ration ( 95%) + FLSW (5%); T4 = basal ration (92.5%) + FLSW (7.5%); T5 = basal ration (90%) + FLSW (10%). The variables observed were production performance (consumption, egg production (HDA / Hen Day Average), egg weight, egg mass, feed conversion and income over feed cost) and egg quality variables (albumin index, yolk index, Haugh Unit (HU), yolk color, albumin pH, yolk pH). The results of the analysis of variance showed that the use of carrot extract fermentation (FLSW) with different levels had a significant effect on feed consumption (Sig.115) and HDA (Sig.063), yolk index value (Sig.087) and yolk color (Sig. 000). , and not significantly different on feed conversion (Sig. 403), albumin index value (Sig. 522), and Haugh Unit (Sig. 259). The conclusion of the research showed that the use of fermented carrot juice waste (FLSW) in the feed of laying hens had an effect on feed consumption, egg production (Hen Day Averag / HDA), yolk index and yolk brightness (yolk color), but had no effect on conversion. feed, Haugh unit and albumin index value. Key words : probiotics, fermentation, carrot juice waste, production performance, egg quality 

Influence of peeling and inorganic calcium concentration on the utilisation of giant taro (Alocasia macrorrhiza) corm meal by laying hens

2019 ◽  
Vol 59 (8) ◽  
pp. 1553 ◽  
Author(s):  
S. S. Diarra ◽  
I. Wamekeni ◽  
A. Vunagilee ◽  
H. Lavaka ◽  
T. Finau
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Shape Index ◽  
Egg Mass ◽  
Feed Conversion ◽  
Shell Quality ◽  
Laying Performance ◽  
Calcium Source ◽  
Main Effects

The effects of peeling and limestone flour level on the utilisation of Alocasia macrorrhiza corm meal (ACM) by laying hens were investigated. Maize-based diets with two concentrations of limestone flour (40 and 60 g/kg) and diets containing 200 g peeled and unpeeled ACM meal/kg with the same levels of limestone flour were fed to five replicate pens containing 10 20-week-old Shaver brown pullets (1635 ± 148 g), each for 105 days. Results showed no interaction or main effects of ACM or limestone concentration on feed intake, egg weight, egg mass, feed conversion efficiency, egg shape index, surface area and Haugh unit (P > 0.05). Feeding whole ACM with 40 g limestone/kg diet reduced hen-day production and shell thickness (P < 0.05) but this was overcome by increasing limestone concentration to 60 g/kg diet. Peeled ACM with both concentrations of limestone flour maintained laying performance and egg quality. We concluded that feeding 200 g whole ACM depresses egg production and shell quality in laying hens, but increasing dietary limestone concentration overcomes this adverse effect. The concentration of limestone flour in the diet has no effect on laying performance. Higher inclusion levels of ACM, calcium source and level that will maintain laying performance and reduce feed cost need to be investigated.

scholarly journals The Effect of Clove Oil Supplementation in Laying Hen Diets on Performance, Egg Quality, Some Blood Parameters, and Yolk TBARS

2021 ◽  
Vol 9 (12) ◽  
pp. 2213-2218
Author(s):  
Melek Şehitoğlu ◽  
Hatice Kaya
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Live Weight ◽  
Blood Parameters ◽  
Feed Consumption ◽  
Control Group ◽  
Clove Oil ◽  
Feed Conversion ◽  
Treatment Groups

In this study, it was investigated the effect of clove oil supplementation at increasing levels into laying hens’ diets on performance, egg quality traits, some blood parameters and yolk TBARS (Thiobarbituric Acid Reagent) values. For this purpose 96 Lohman white laying hens, 28 weeks of age, were divided into four treatment groups. Control group was fed with basal diet (C) and treatment groups were fed with diets formed by addition of clove oil at 50 ppm (CO1), 100 ppm (CO2) and 150 ppm (CO3), respectively. During the trial, feed and water were given as ad-libitum, and poultry house was illuminated for 17 hours. Experiment lasted for 13 weeks. Addition clove oil at increasing rates into diet did not affect the live weight. The data analysed as polynomial showed that supplementation of clove oil into layer diet linearly improved feed conversion ratio and increased the egg production. But, daily feed consumption, egg weight, damaged egg ratio and egg quality parameters were not affected by treatments. Serum parameters such as triglyceride, glucose, aspartate aminotransferase, alanine aminotransferase and calcium were not affected by the clove oil supplementation. TBARS values in C, CO1, and CO2 were found higher than the CO3 group fed with diet including 150 ppm clove oil. In conclusion, clove oil at 150 ppm level in diets of laying hens could be used due to extend the egg shelf life and to decline serum cholesterol content.

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 High Temperature With Low Humidity or Vice Versa Does Not Affect Performance and Physiology of Laying Hens

2020 ◽  
Author(s):  
Da-Hye Kim ◽  
Yoo-Kyung Lee ◽  
Sang-Ho Kim ◽  
Kyung-Woo Lee
Keyword(s):  
Biochemical Parameters ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Density Lipoprotein ◽  
Scientific Basis ◽  
Egg Mass ◽  
Thermal Treatments ◽  
Feed Conversion ◽  
Laying Performance

The present study investigated the effect of different ambient temperature and relative humidity (RH) but equal temperature-humidity index (THI) on laying performance, egg quality, heterophil to lymphocyte ratio (H/L ratio), corticosterone (CORT) concentration in blood, yolk and albumen, and plasma biochemical parameters in laying hens. One hundred and twenty commercial hens (Hy-Line Brown) aged 60 weeks were allocated into 2 environmental chambers. Laying hens were subjected to either one of two thermal treatments, i.e., 26ºC and 70% RH (LH75) and 30ºC and 30% RH (HL75) for 28 days. Both thermal treatments had equal THI being 75. Neither LH75 nor HL75 affected (P > 0.05) laying performance including egg production, egg weight, egg mass, feed intake, and feed conversion ratio. Plasma biochemical parameters such as total cholesterol, high-density lipoprotein cholesterol, triglyceride, calcium, magnesium, and phosphorus was not altered (P > 0.05) by thermal treatments. As to the stress indicators, both environment regimes failed (P > 0.05) to affect blood H/L ratio and CORT levels in plasma, yolk and albumen although albumen CORT levels were elevated (P < 0.05) in LH75 vs. HL75 at days 3, 7, and 28. In conclusion, our study suggests that laying hens performed and responded equally when they were exposed to equal THI environment conditioned from either 26ºC and 70% RH or 30ºC and 30% RH. The results of this study will be served as a scientific basis for management decisions and handling under thermally challenging conditions.

scholarly journals The Impact of Temperature and Humidity on the Performance and Physiology of Laying Hens

Animals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 56
Author(s):  
Da-Hye Kim ◽  
Yoo-Kyung Lee ◽  
Sang-Ho Kim ◽  
Kyung-Woo Lee
Keyword(s):  
Biochemical Parameters ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Density Lipoprotein ◽  
Scientific Basis ◽  
Egg Mass ◽  
Feed Conversion ◽  
Laying Performance ◽  
The Impact

We investigated the effect of different ambient temperatures and relative humidity (RH) with the same temperature-humidity indices (THI) on laying performance, egg quality, heterophil to lymphocyte ratio (H/L ratio), corticosterone (CORT) concentration in blood, yolk, and albumen, and plasma biochemical parameters of laying hens. Commercial hens (Hy-Line Brown; n = 120), aged 60 weeks, were allocated to two environmental chambers. Laying hens were subjected to either one of two thermal treatments—26 °C and 70% RH (TLHH75) or 30 °C and 30% RH (THHL75) for 28 days—with the same THI of 75. Neither TLHH75 nor THHL75 affected laying performance, including egg production, egg weight, egg mass, feed intake, and feed conversion ratio (p > 0.05). Plasma biochemical parameters such as total cholesterol, high-density lipoprotein cholesterol, triglycerides, calcium, magnesium, and phosphorus were not altered by the environmental treatments (p > 0.05). As for stress indicators, both environmental regimes failed to affect blood H/L ratio and CORT levels in plasma, yolk, and albumen (p > 0.05), although albumen CORT levels were elevated (p < 0.05) in TLHH75 group at day 7. Hence, our study suggests that laying hens performed and responded similarly when exposed to either TLHH75 or THHL75 characterized by the same THI. These results can serve as a scientific basis for management decisions and handling laying hens under thermally challenging conditions.

scholarly journals Use of semi-leafless peas (Pisum sativum L) in laying hen diets

2015 ◽  
Vol 24 (2) ◽  
pp. 84-91 ◽  
Author(s):  
Erja Koivunen ◽  
Petra Tuunainen ◽  
Eija Valkonen ◽  
Jarmo Valaja
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Live Weight ◽  
Specific Weight ◽  
Production Performance ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Negative Effects ◽  
Inclusion Level

The study was conducted to evaluate an appropriate inclusion level of white-flowered semi-leafless green spring peas in diets for laying hens. Egg production and egg quality variables (specific weight, Haugh unit, shell strenght) were determined with 576 hens in a 52-week feeding experiment, which comprised of three feeding phases. The hens were offered one of the four cereal and soybean meal (SBM) based experimental diets. Peas were tested in proportions of 0, 100, 200 or 300 g kg-1 in the diet. Pea inclusion had no effects on production performance, feed consumption or feed conversion ratio (FCR) of the hens during the entire trial. The pea inclusion impaired FCR during the second feeding phase (p < 0.05) and increased birds’ live weight in a linear manner during the second and the third feeding phases (p < 0.05). Pea inclusion had no effects on egg quality. It can be concluded that at least 300 g kg-1 of the studied peas can be used in the diets of laying hens without negative effects on production performance or egg quality.

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 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

Sign in / Sign up

Export Citation Format

Share Document