Selection for egg shell strength in laying hens using shell membrane characteristics

A new technology based on bio-templating approach was proposed in this paper. Egg-shell membrane (ESM) has been employed as a natural biotemplate. Fibrous oxide ceramics was prepared by wet impregnation of biological template with water solution of cerium nitrate. The template was derived from membranes of fresh chicken eggs. Repeated impregnation, pyrolysis and final calcination in the range of 600 to 1200?C in air resulted in template burnout and consolidation of the oxide layers. At low temperatures, the obtained products had structure which corresponded to the negative replication of biological templates. Unique bio-morphic CeO2 microstructures with interwoven networks were synthesized and characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD), whereas low-temperature nitrogen adsorption (BET) method was used in order to characterize porous properties.

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Nutritional Characteristics and Quality of Eggs from Laying Hens Fed on a Dried Papaya Peel Meal Diet

ANIMAL PRODUCTION ◽

10.20884/1.jap.2018.20.3.704 ◽

2019 ◽

Vol 20 (3) ◽

pp. 147

Author(s):

Jein Rinny Leke ◽

Florencia Nery Sompie ◽

Erwin Wantasen ◽

Trina Ekawati Tallei

Keyword(s):

Crude Protein ◽

Laying Hens ◽

Hdl Cholesterol ◽

Egg Yolk ◽

Egg White ◽

Blood Cholesterol ◽

Negative Effects ◽

Egg Weight ◽

Nutritional Characteristics ◽

Egg Shell

The objectives of this study were to analyze the eggs nutritional characterics and quality from laying hens fed with diried papaya (Carica papaya L) peel meal diets. A total 200 brown laying hens strain MB 402 (42 week-old). The design used in this study was a The objectives of this study were to analyze the eggs’ nutritional characteristics and quality from laying hens fed with dried papaya (Carica papaya L) peel meal diets. A total of 200 brown laying hens strain MB 402 (42 week-old) were used in this experiment. The design used in this study was a completely randomized design (CRD) consisting of 5 treatments and 4 replications (10 hens each). The treatments consisted of dried papaya peel meal (DPPM) 0%, 3%, 6%, 9% and 12%. Total feeding trial was 8 weeks. The parameters recorded included egg weight (g/bird)), egg yolk weight (g/bird), yolk index (%), albumen index (%), egg yolk color, egg cholesterol (mg/100g), egg crude protein (%), egg crude fat (%), egg white crude protein (%), egg yellow fat (%), eggshell calcium (%), eggshell phosphorus (%), blood cholesterol (mg/dl), blood LDL cholesterol (mg/dl), and blood HDL cholesterol (mg/dl) of the laying hens. The results showed that feeding birds with 12 % increased egg yolk weight, egg yolk color, egg crude fat, egg yellow fat, egg cholesterol, egg shell calcium, egg shell phosphor, blood cholesterol, blood HDL. Moreover there were no significant differences in egg weight, yolk index , albumen index, egg crude protein, egg white crude protein and blood LDL. In Conclusion, DPPM diets can be fed to the laying hens up to 12 % to produce eggs without negative effects on the egg quality.ransomized design (CRD) consisting of 5 treatments and 4 replications (10 hens each). The treatments made use of dried papaya peel meal (DPPM) 0%, 3%, 6 %, 9 % and 12 %. Total feeding trial was 8 weeks . The parameters recorded included egg weight (g/bird), egg yolk weight (g/bird), yolk index (%), albumen index(%), egg yolk calor, egg cholesterol (mg/100g), egg crude protein (%), egg crude fat (%), egg white crude protein (%), egg yellow fat (%), eggshell calsium (%), eggshell phosphorus (%), blood cholesterol (mg/dl), blood LDL Cholesterol (mg/dl), and blood HDL cholesterol (mg/dl) of the laying hens, The results showed that feeding dried papaya peal meal in cinclusion 12 % increased egg yolk weight, egg yolk color, egg crude fat, egg yellow fat, egg cholesterol, egg shell calsium, egg shell prosphor, blood cholesterol, blood HDL. Moreover there were no significant diffirence in egg weight, yolk index, albumen index, egg crude protein, egg white crude protein and blood LDL. In conclusion DPPM diets can be fed to the laying hens up to 12 % to produce eggs without negative effects on the egg quality.

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PENGARUH APLIKASI GEL EKSTRAK MEMBRAN KULIT TELUR BEBEK 10% TERHADAP KEPADATAN SERABUT KOLAGEN PADA PROSES PENYEMBUHAN LUKA GINGIVA

ODONTO Dental Journal ◽

10.30659/odj.4.1.13-20 ◽

2017 ◽

Vol 4 (1) ◽

pp. 13

Author(s):

Agung Ikaputri Mulatpeni Novitasari ◽

Recita Indraswary ◽

Rosa Pratiwi

Keyword(s):

Wound Healing ◽

Rattus Norvegicus ◽

Collagen Fiber ◽

Positive Control ◽

Cellular Migration ◽

Shell Membrane ◽

Egg Shell Membrane ◽

Duck Egg ◽

Egg Shell ◽

Experimental Group

Background: Several processes in a teeth treatment often inflict wound ingingiva. Collagen is the key component of the wound healing. The collagen roles in advancing wound healing particularly, triggering the synthesis to induces collagen and cellular migration, and also inducing clotting cascades. Wound treatment using natural product is potential in accelerating wound healing, in particular duck egg membrane which contains collagen, glucosamine, and hyaluronic acid. This study aims to find out the influence of gel extract application of duck egg shell membrane 10 % towards collagen solidity on gingiva wound recovery process (study of Rattus norvegicus).Method: The subjects of the study consist of 20 male Rattus norvegicus aged 2-3 months which were given wound on labial gingiva of the maxillary central incisors with punch biopsy. The samples were divided into 2 groups, they were positive control group (Aloclair Gel®) and experimental group (gel extract of duck egg shell membrane 10%), each of them was treated topically twice a day for one minute.The assessment of collagen fiber was done by giving score over the collagen fiber solidity of the histological tissue through 6 points of view. The observer done by two person (blind interpretation) score of collagen fiber solidity.Result: The analysis result showed that there was a significant difference on collagen fiber solidity (p>0,05) between positive control groups and experimental group on the 3rd, 7th, and 14th day.Conclusion: This study concludes that the application of topical gel extract of duck egg shell membrane 10% affects the improvement of collagen fiber solidity on the process of healing gingiva wound on Rattus norvegicus

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RATE OF CO2AND C14EXHALATION IN LAYING HENS RESTING AND DURING EGG-SHELL MINERALIZATION AFTER A SINGLE INJECTION OF NaHC14O3

annales de biologie animale biochimie biophysique ◽

10.1051/rnd:19700612 ◽

1970 ◽

Vol 10 (Hors-série 2) ◽

pp. 133-139 ◽

Cited By ~ 4

Author(s):

K. LÖRCHER ◽

CH. ZSCHEILE ◽

K. BRONSCH

Keyword(s):

Laying Hens ◽

Single Injection ◽

Egg Shell

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The influence of strain and age on some egg quality parameters of commercial laying hens

Biotechnology in Animal Husbandry ◽

10.2298/bah1104649k ◽

2011 ◽

Vol 27 (4) ◽

pp. 1649-1658 ◽

Cited By ~ 5

Author(s):

D. Kocevski ◽

N. Nikolova ◽

A. Kuzelov

Keyword(s):

Laying Hens ◽

Egg Quality ◽

Quality Parameters ◽

Older Age ◽

White Line ◽

Egg Weight ◽

Statistical Significant Difference ◽

Significant Difference ◽

Breeding Technology ◽

Egg Shell

The experiment was conducted to evaluate the influence of strain and age on some egg quality parameters (egg weight and egg shell strength) of commercial laying hens. Layers of lines ISA Brown and DeKalb White were examined in period of nine months. Both lines were at same age (28 weeks) and were confined in common facility in battery cages. Laying hens were reared and fed according to standard breeding technology. Once a month 25 eggs of each line were taken to be examined for eggshell strength and egg weight, or in other words, total 450 table eggs were tested. Analises were done in Laboratory for testing egg quality by gaudges Egg Multi Tester EMT 5200 and Egg shell Gauge (Robotmation Co. Ltd., Tokyo, Japan) which have computerised equipment to examine quality and physical characteristics of eggs. Statistic analyses on results were done by computer sub-programme ANOVA and Fisher's LSD test to determine the level of statistical significant difference between examined factors. Egg weight was under significant impact of age (P ? 0,05), but not under the influence of strain, although eggs of ISA Brown line were insignificantly heavier than eggs of DeKalb White line. Eggs were heaviest at layers with older age, while they were lightest at younger birds. The results have shown significant differences (P ? 0,05) in eggshell strength compared to line influence (genotype) and months of age. Eggs from ISA Brown laying hens had much better and eggshell strength than those eggs from DeKalb White. Correlations between eggshell strength and egg weight were with significant (R < 0,05) negative value, which indicating that with increasing egg weight decreases of eggshell strength.

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