scholarly journals Limestone particle sizes and lighting regimens on egg and bone quality of laying hens

2015 ◽  
Vol 50 (8) ◽  
pp. 718-725 ◽  
Author(s):  
Regina Patrícia de Souza Xavier ◽  
Ednardo Rodrigues Freitas ◽  
Nádia Melo Braz ◽  
Nadja Naiara Pereira Farias ◽  
Raffaella Castro Lima ◽  
...  

Abstract:The objective of this work was to evaluate the effect of limestone particle sizes in the diet and of lighting regimes on the egg and bone quality and on the performance of commercial laying hens. Three hundred Hissex White layers, at 18 weeks of age, were distributed in a completely randomized design, in a 5×2 factorial arrangement (coarse limestone in the diet at 0, 25, 50, 75, and 100%; with or without artificial light), with five replicates of six birds. No significant interaction was observed between particle sizes and lighting regime for the evaluated parameters. There was no significant effect of coarse limestone level in the diet on the performance and egg quality of hens; however, bone deformity (3.23 to 4.01 mm), strength (5.19 to 6.70 kgf cm-2), and mineral matter (51.09 to 59.61%) improved as the proportion of coarse limestone increased. For lighting regime, the treatment with artificial light yielded higher Haugh unit values (87.17 vs. 85.54) than that with natural light only. Greater limestone particles improve bone quality of laying hens, and the use of artificial light can benefit the albumen quality of the eggs.

2021 ◽  
Vol 888 (1) ◽  
pp. 012054
Author(s):  
A Jaelani ◽  
N Abelina ◽  
R Samudera ◽  
T Rostini ◽  
Masganti ◽  
...  

Abstract This research aims to study and analyze the effect of adding turmeric flour (Curcuma domestica Val) in the rations on the performance of 70 weeks old Isa Brown strain of laying hens. The research method used in this study was an experimental method with a completely randomized design (CRD) step with five treatments and four replications. The number of chickens used was as many as 40 laying hens. The treatments given to the sample were P0 = feed without giving turmeric flour (control), P1 = feed with 0.3% turmeric flour, P2 = feed with 0.5% turmeric flour, P3 = feed with 0.7% turmeric flour and treatment P4 = feed by giving turmeric flour 0,9%. The results showed that giving turmeric flour in the rations of the Isa Brown strain of laying hens affected chicken performance and egg quality. This research concludes that giving turmeric flour a percentage of 0.7% in Isa Brown’s 70-week old laying hens is the best for ration consumption, Hen Day Production, egg weight, feed conversion, and egg quality: Haught Unit, yolk egg color, yolk egg index, grading egg and egg mass. Based on the haugh unit value, all eggs produced are still in the AA grade category


2017 ◽  
Vol 18 (2) ◽  
pp. 293-302 ◽  
Author(s):  
Maria Cristina de OLIVEIRA ◽  
Wanessa Dutra da SILVA ◽  
Higor Castro OLIVEIRA ◽  
Eduardo de Queiroz Barros MOREIRA ◽  
Larissa de Oliveira FERREIRA ◽  
...  

SUMMARY This study was performed to evaluate the effect of the inclusion of paprika and marigold extracts in sorghum-based rations on the productivity and egg quality of laying hens. One hundred sixty laying hens were distributed in a completely randomized design in five treatments and in a factorial arrangement (2 × 2 + 1), one control ration based on corn, two levels of paprika extract (0 and 6 g/kg diet), and two levels of marigold extract (0 and 1 g/kg diet) in sorghum-based rations. There was no effect (P > 0.05) of the treatments on the weight, specific weight, and Haugh unit of the eggs and productive performance, but the inclusion of paprika extract resulted in eggs with lower egg pH. The interaction between the control group and the factorial was significant (P < 0.05) to the laying rate, egg mass, and yolk color, whose values were lower with sorghum-based diets with no pigment compared to control treatment. The interaction between the paprika and marigold extracts was significant increasing the height (P < 0.03) and color (P < 0.0001) of the yolk when paprika extract was used, with or without marigold extract. Marigold extract inclusion reduced the percentage (P < 0.02) and thickness (P < 0.01) of the eggshell. As conclusion, the inclusion of paprika extract in sorghum-based diets for laying hens is viable for improving the egg quality.


2019 ◽  
Vol 10 (1) ◽  
pp. 16
Author(s):  
D Sudrajat ◽  
F Priytana ◽  
H Nur

Non-conventional feeds are generally of low quality so feed fermentation needs to be done to increase its use. This research was conducted to examine the effect of giving fermented feed types on egg quality. This research was conducted in June until August 2018 in the cage of Cibadak poultry in Sukabumi district. The animals used in this study were 24 Brown Strain Isa Brown laying hens as many as 24 birds. The study used a completely randomized design (CRD) consisting of 6 treatments and 4 replications. The treatment in this study was R0 = 100% Basic Ration, R1 = 90% Basic ration + 10% fermented non conventional ration, R2 = 80% Basic ration + 20% fermented non conventional ration, R3 = 70% Basic ration + 30% Non ration conventional fermented, R4 = 60% Basic ration + 40% Fermented non-conventional ration, R5 = 50% Basic ration + 50% Fermented non-conventional ration. The data obtained were analyzed using Analysis of variance (ANOVA), if the data showed results that were significantly different (P <0.05) followed by the Duncan test. The results showed that substitution feeding did not significantly influence the egg index, egg white weight, Haugh Unit value, and shell thickness. Therefore, it can be concluded that demonstrable non-conventional feed can be given in ration of laying hens up to 50%.


2019 ◽  
Vol 41 (1) ◽  
pp. 43801
Author(s):  
Debora Duarte Moraleco ◽  
Jean Kaique Valentim ◽  
Larissa Gonçalves Silva ◽  
Heder José D'Ávila Lima ◽  
Tatiana Marques Bitencourtt ◽  
...  

The objective of this study was to evaluate the effect of marigold flower extract and paprika on egg quality of Black Avifran laying hens in different periods of storage. A completely randomized design study with a 3x3 factorial scheme with three diets (control, paprika, and marigold flower extract) and three storage periods (0, 7, and 14 days) was carried out. The following metrics were evaluated: egg weight, yolk weight, shell weight; yolk color, albumen height, specific gravity, and Haugh unit as well as the yolk, shell, and albumen percentage relative to the total weight of the egg. There was no significant interaction between additives and storage time (p > 0.05) for most of the parameters evaluated. The only exception was observed for yolk color, in which the interaction effect between treatments was significant (p < 0.05). The effect of storage time was significant (p < 0.05) for albumen weight, albumen percentage, yolk color, albumen height, specific gravity, and Haugh unit, with reduction of these parameters over the evaluation period. The use of paprika and marigold flower extract in the diets of Black Avifran laying hens does not influence egg quality.


2015 ◽  
Vol 46 (1) ◽  
pp. 157-162 ◽  
Author(s):  
Flavia Kleszcz da Cruz ◽  
Elis Regina de Moraes Garcia ◽  
André Luiz Julien Ferraz ◽  
Karina Márcia Ribeiro de Souza ◽  
William Britez Feliciano ◽  
...  

ABSTRACT: This study aimed to evaluate the effect of using lycopene and organic minerals in diets for laying hens on the egg quality and stability of eggs stored for 30 days under different storage environments. An entirely randomized design was adopted in 2x3x3 factorial scheme (mineral sources x lycopene levels x storage periods) with six replicates of eight hens per experimental unit. The experimental diets were: feed containing inorganic minerals (IM) without added lycopene; IM with added lycopene (400mg kg-1); IM with added lycopene (800mg kg-1); organic minerals (OM) without added lycopene; OM with added lycopene (400mg kg-1); OM with added lycopene (800mg kg-1). After 112 days of feeding experimental diets, it was selected 60 eggs treatment-1, which were later labeled, stored in room and refrigerated temperature, and subjected to different storage periods (0, 15 and 30 days). Variables analyzed were: Haugh unit, yolk index, yolk color, albumen and yolk pH, and lipid oxidation (TBARS). Stability of eggs is not altered as a function of mineral sources and levels of lycopene studied. However, increasing storage time affects the quality of the eggs of laying hens at both storage conditions.


2011 ◽  
Vol 40 (5) ◽  
pp. 997-1005 ◽  
Author(s):  
José Anchieta de Araujo ◽  
José Humberto Vilar da Silva ◽  
Fernando Guilherme Perazzo Costa ◽  
Janaína Maria Batista de Sousa ◽  
Patrícia Emília Naves Givisiez ◽  
...  

This experiment was conducted to evaluate the effect of levels of calcium (Ca) and particle size of limestone (LS) for laying hens. It was used 216 Dekalb White laying hens at 25 to 49 weeks of age in a completely randomized design in a 3 × 2 factorial arrangement, composed of three levels of calcium (3.92, 4.02 and 4.12%) and two particle sizes of limestone (thin - 0.60 mm; and thick - 1.00 mm), resulting in 6 treatments with six replicates of six birds. There was no significant effect of levels of calcium and limestone particle size neither of the interaction calcium × particle size for feed intake, egg weight, specific gravity, shell thickness, shell percentage, Haugh unit, calcium and phosphorus digestibility and percentage of digestive tract. Production, mass, conversion by mass and conversion by egg dozen had their best results with 4.12% of calcium in the diet. Percentage of gizzard and feed intake observed at 3:00 p.m. improved as limestone granulometry improved from 0.60 to 1.00 mm. There was an interaction effect among calcium level and limestone granulometry for breaking strength of tibia, bone density, length of the small intestine and feed intake at 6:00 a.m.; 9:00 a.m., 12:00 p.m., 6:00 p.m. and 9:00 p.m., respectively. It is recommended the addition of 4.12% of calcium and limestone in the thick granulometry (1.00 mm) for a better performance of commercial laying hens. More studies are needed to elucidate the mechanisms involved in the alteration of nutritional behavior of laying hens in response to changes in the levels of calcium and in the granulometry of limestone in the rations.


2020 ◽  
Vol 12 ◽  
Author(s):  
Donaldo Antônio Nunes Junior ◽  
Heder José D’Avila Lima ◽  
Jean Kaique Valentim ◽  
Laura Aline Zanelatto Souza ◽  
Nayara Emanoelle Matos e Silva ◽  
...  

The main objective of this research is to evaluate the inclusion of different natural pigment solutions in diets formulated with maize and sorghum solutions on the growth performance and egg quality of commercial laying hens created in hot climates. Throughout the conduction of this experiment, were used 252 laying hens of the Hisex Brow, in a completely randomized design, with six treatments, seven repetitions, and six birds per plot. The experimental diets were assigned with different energy sources and adding pigmentation solutions, diet 1 (corn), diet 2 (corn + annatto), diet 3 (corn + carrot), diet 4 (sorghum), diet 5 (sorghum + annatto), diet 6 (sorghum + Carrot).  Afterward, being evaluated the performance and quality of eggs. It was observed significant difference with reference t egg production, egg weight (g), gem weight (g), the weight of shell (g), albumin in weight (g), and gem coloration (tons) among the treatments. There was no difference in the parameters of performance and quality of eggs evaluated, only the variable yolk color had a significant effect between treatments. Replacing the energy source of the corn diet with sorghum in the diet of laying hens at peak production provides similar performance and egg quality, which can be a substitute for quality and efficiency. The use of annatto and carrots as a natural pigmentation promotes greater pigmentation of the egg yolks of laying Hisex Brown eggs and does not impair the performance of the birds.


2017 ◽  
Vol 5 (1) ◽  
pp. 1 ◽  
Author(s):  
Riawan Riawan ◽  
Riyanti Riyanti ◽  
Khaira Nova

The purpose of this research was to find out interior quality of egg laying hens which immersion with moringa leaf solution and to find out the best moringa leaf solution.  This research carried out on August 14--September 13, 2016 housed in the Laboratory Animal Production and Reproduction, Department of Animal Husbandry, Faculty of Agriculture, University of Lampung.  The material of research used 72 eggs laying hens strain isa brown from layer of 60 weeks old with the average weight 63,0±1,51 gram and coefficient of variation 2,40%.  This research used a Completely Randomized Design with 4 treatments and 6 repetition.  The treatments of research consists of immersion egg used moringa leaf solution 0% (w/v), 10% (w/v), 20% (w/v), and 30% (w/v).  Analyzed data observation used variance with 5% trust level and continued with Least Significant Different test.  The result showed that immersion egg with moringa leaf solution significant effect (P<0,05) increase albumin index and the haugh unit, and not significant effect (P>0,05) to yolk index and percentage egg weight lo.  Concentration 30% of immersion moringa leaf solution to give the best treatment to interior quality of egg laying hens.                                 Keywords :  Albumin Index Moringa Leaf, Percentage Egg Weight Lost, Yolk Index, Haugh Unit.


2020 ◽  
Vol 7 (2) ◽  
pp. 85-89
Author(s):  
Isye Jean Liur

Hen egg is easy to get and affordable. Besides having a complete nutritional content, chicken eggs are also easily damaged due to microbial activity during storage so that it can reduce egg quality. Therefore, a preservation process is needed to maintain egg quality. This study aims to determine the effect of soursop leaf extract concentrations on decreasing the quality of eggs. This research used a completely randomized design with two factors, the first factor was the concentration of soursop leaf extract (20, 30, 40%) and the second was the shelf life (0, 7, 14, 21 and 28 days). Observation included egg white index, egg yolk index, haugh unit, and weights of eggs. The results indicate that eggs with soursop leaf extract immersion treatment can maintain egg quality. The concentration of soursop leaf extract as much as 40% gives better results in maintaining the quality of eggs.


2021 ◽  
Vol 43 ◽  
pp. e52609
Author(s):  
Wellington dos Santos ◽  
Rodrigo Garófallo Garcia ◽  
Bruna de Souza Eberhart ◽  
Jean Kaique Valentim ◽  
Felipe Cardoso Serpa ◽  
...  

This study aimed to evaluate the influence of homeopathic products in diets of quails in the egg quality when submitted to different storage periods. In the trial we used 200 Japanese quails in a completely randomized design with 4 diets: reference diet, vehicle used in homeopathic products and 2 homeopathic products - Fertsigo® and Ovosigo® with ten replicates of three eggs in each. Egg quality parameters were evaluated during 3 storage periods. Data were evaluated as repeated measures in time, the effects of the interactions between treatments and time as well as their isolated effects were verified. There was the interaction between homeopathic products and storage time in the parameters of albumen and yolk height, Haugh unit, and yolk index, in which a reduction was obtained over time. For egg weight, yolk, albumen and shell, percentage of albumen, and percentage of eggshell there was a significant effect only for homeopathy. The inclusion of homeopathic additives increased egg weight. It is indicated the addition of the product with homeopathic basis Ovosigo® and FertSigo® in diets of Japanese quails in the laying phase resulting in better egg and components but did not influence the quality maintenance of eggs of Japanese quails in the periods evaluated.


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