scholarly journals Research of selected physical indicators of table eggs in the small-scale breedings from the aspect of health safety

10.5219/1357 ◽  
2020 ◽  
Vol 14 ◽  
pp. 893-904
Author(s):  
Mária Angelovičová ◽  
Michal Angelovič ◽  
Lucia Zeleňáková
Keyword(s):  
Equatorial Plane ◽  
Shell Thickness ◽  
Laying Hens ◽  
Small Scale ◽  
Shell Weight ◽  
Egg Weight ◽  
Health Safety ◽  
Free Range ◽  
Shell Damage ◽  
Object Of Study

The purpose of this study was to investigate selected indicators of the table eggs in small-scale breedings, focusing mainly on the eggshell and its contamination and damage. Our object of study was eggs, shell, damage, and contamination of table eggs. Four small-scale breedings were randomly selected in Slovakia. These breeds were alternatively with an outdoor free-range. Laying hens Dominant was bred under conditions small-scale breeds No.1, No. 2 and No. 3 in the 1st laying cycle, and No. 4 in the 2nd laying cycle. Egg weight was balanced in three small-scale breedings. Egg weight was significantly higher in the fourth small-scale breeding, statistically significant (p <0.05) compared to egg weight in the studied 3 small-scale breedings. Shell weight and shell thickness in the equatorial plane of the egg were balanced in three small-scale breedings and in the fourth small-scale breedings were significantly higher, statistically significant (p <0.05). The higher egg weight per breeding is related to the higher laying hens age that was in the 2nd laying cycle compared to laying hens 3 small-scale breedings in the 1st laying cycle. Higher eggshell weight in three farms may be related to improved conditions in breeding hygiene, as confirmed by the results of investigations into contamination and damage to table eggs. These differences may also be related to nutrition.

scholarly journals The Characteristics and Quality of Egg from Commercial Laying Hens Fed with Garlic (Allium Sativum) Supplemented Ration

2020 ◽  
Vol 21 (2) ◽  
pp. 98 ◽  
Author(s):  
Jein Rinny Leke ◽  
Erwin Wantasen ◽  
Florencia Sompie ◽  
Femy Hadidjah Elly ◽  
Ratna Siahan
Keyword(s):  
Shell Thickness ◽  
Allium Sativum ◽  
Laying Hens ◽  
Egg Quality ◽  
Laying Hen ◽  
Negative Effects ◽  
Shell Weight ◽  
Egg Weight ◽  
Garlic Powder

The research aimed to determine the characteristics and quality of egg of commercial laying hens fed ration supplemented with garlic (Allium sativum) powder. The research used Completely Randomized Design (CRD) with five treatments and four replicates (5 hens each) for a total of 100 brown laying hens strain MB 402. Garlic powder contained 24.62% crude protein, 38.81% fat, and 1.74% crude fiber. The treatments of garlic powder ration were 0, 2, 4, 6, and 8%. The treatments performed were dietary, with R0 = 100% based diet (BD); R1= 98% based diet (BD) + 2% garlic meal (GM); R2= 96% based diet (BD) + 4% GM, R3 = 94% based diet (BD) + 6% GM, R4 = 92% based diet (BD) + 8% GM. The study was conducted during eight (8) weeks. Collected data were quality, weight, shell weight, albumen weight and shell thickness of eggs. Data was analyzed with Analysis of Variance (ANOVA) and continued with Duncan’s Multiple Range Test (DMRT). The results showed that 8% garlic powder ration increased weight and albumen weight of eggs. There were no significant effect of treatments in yolk weight, shell weight and shell thickness of eggs. Garlic powder supplementation on laying hen ration affected egg weight and albumen weight. The addition of garlic powder on laying hen ration of up to 4% increased egg weight. Albumen weight increased until garlic powder supplementation of up to 8%. It is recommended the use of 8% garlic powder supplementation on lying hen ration without negative effects on egg quality.

scholarly journals Sunflower Seed Meal and Probiotics in Short-term Feeding of Laying Hens

2021 ◽  
Author(s):  
Yasir Ditta ◽  
Sadia Naseem ◽  
Ketwee Saksrithai ◽  
Annie J. King
Keyword(s):  
Specific Gravity ◽  
Sunflower Seed ◽  
Shell Thickness ◽  
Laying Hens ◽  
Egg Quality ◽  
Quality Parameters ◽  
Seed Meal ◽  
Shell Weight ◽  
Egg Weight ◽  
Egg Shell

Abstract BackgroundHorticultural byproducts may be used to partially or completely replace more expensive soy and corn while providing adequate energy and protein for broilers and laying hens. Probiotics, such as lactic acid bacteria, may aid in digestion of fibrous byproducts such as sunflower seed meal containing complex carbohydrates that along with some amino acids may not be easily digested by monogastric animals. Thus, byproducts and probiotics, when fed to poultry, may improve the production of nutritious meat and eggs. ResultsWhite Leghorn Crosses (64 layers at 65- to 74-wk-old) were fed one of four diets for four weeks. Diets were (1) a corn/soy Control, (2) Control + 20% sunflower seed meal (SFM), (3) Control + Probiotics (Lactobacillus plantarum, rhamnosus, and paracasei - each at > 23.3 Mil CFU/g for a total of approximately 70,000,000 Mil CFU/g added in drinking water), and (4) Control + 20% SFM + Probiotics. Significance (P < 0.05) and trends (P < 0.10) were determined for production measurements as well as external and internal egg quality parameters. Diet did not significantly affect production measurements. There were trends due to Probiotics*Week for FCR and SFM*Probiotics*Week for feed intake. For external egg quality, SFM significantly increased egg weight, decreased specific gravity, and caused a downward trend for egg shell thickness. SFM*Week produced a significant effect on specific gravity. Probiotics significantly increased egg weight and egg shell weight while decreasing egg shell thickness; there was a trend due to temporal effects on specific gravity. For internal egg quality, SFM, SFM*Week, Week, and SFM*Probiotics*Week significantly affected yolk color. Week affected all internal measurements and SFM*Week caused weekly fluctuations, thereby producing a trend for Haugh unit. ConclusionsDiet had no effect on production measurements. SFM increased egg weight and decreased specific gravity; Probiotics increased egg weight, shell weight, and shell thickness. Future research in needed to assess production and egg quality parameters when feeding various fiber types, the digestibility of SFM/Probiotic diets, and colonization of varying quantities of probiotics (added in water and feed) in the gut of various types and ages of laying hens.

scholarly journals Analysis of the relations between some physicalindicators of market eggs  

2011 ◽  
Vol 57 (Special Issue) ◽  
pp. S1-S6
Author(s):  
R. Gálik ◽  
Z. Poláková ◽  
Š. Boďo ◽  
M. Denker
Keyword(s):  
Shell Thickness ◽  
Statistical Significance ◽  
Shape Index ◽  
Statistical Dependence ◽  
Shell Weight ◽  
Egg Weight ◽  
P Values ◽  
Significant Dependence ◽  
Independent Variable ◽  
Mutual Relations

The paper discusses the relations between some physical indicators of market eggs of laying hens housed in conventional and enriched cage batteries. The measured results were evaluated by the multiple regression dependence method. They show that in the case of both the conventional as well as the enriched cages a statistically significant dependence exists between the eggshell deflection (dependent variable) and thickness, or the force needed for the eggshell destruction (independent variable). The respective P values are given in brackets (0.002 &lt; 0.05; 0.03 &lt; 0.05; 1.16 &times; 10<sup>&ndash;10 </sup>&lt; 0.05; 8.31 &times; 10<sup>&ndash;4 </sup>&lt; 0.05); in the case of the conventional cage and enriched cage also a statistically significant dependence existed (3.81 &times; 10<sup>&ndash;91 </sup>&lt; 0.05; 3.86 &times; 10<sup>&ndash;81</sup>; 1.27 &times; 10<sup>&ndash;97 </sup>&lt; 0.05; 3.46 &times; 10<sup>&ndash;57 </sup>&lt; 0.05) between the shell weight (dependent variable) and shell thickness, or egg weight (independent variable); in the conventional cage, statistical dependence also occurred between the eggshell weight and egg shape index, (1.07 &times; 10<sup>&ndash;6 </sup>&lt; 0.05), in the enriched cage this was on the verge of statistical significance (0.062 &gt; 0.05); if in the conventional cage the eggshell thickness was increased by 1 mm, the shell deflection decreased by 0.08 mm,and if the force necessary for the eggshell destruction was increased by 1 N, the shell deflection decreased by 0.0003 mm; if in the conventional cage the shell thickness was increased by 1 mm, the shell weight increasee by 15.509 g and if the egg weight was increased by 1 g, the shell weight increased by 0.061 g. Our work brings further knowledge concerning the monitored characteristics and their mutual relations.

scholarly journals Optimal dietary concentrations of vitamin C and chromium picolinate for alleviating the effect of low ambient temperature (6.2 degrees C) on egg production, some egg characteristics, and nutrient digestibility in laying hens

2001 ◽  
Vol 46 (No. 9–10) ◽  
pp. 229-236 ◽  
Author(s):  
N. Sahin ◽  
K. Sahin
Keyword(s):  
Vitamin C ◽  
Ambient Temperature ◽  
Shell Thickness ◽  
Egg Production ◽  
Laying Hens ◽  
Chromium Picolinate ◽  
Shell Weight ◽  
Egg Shell ◽  
Haugh Unit ◽  
Low Ambient Temperature

This experiment was conducted to evaluate the effect of vitamin C (L-ascorbic acid) and chromium (chromium picolinate, Cr Pic) on egg production, some egg characteristics, and digestibility of nutrients in laying hens (Hy-Line) reared under a low ambient temperature (6.2&deg;C). Two hundred and ten laying hens (32 week-old) were divided into seven groups, 30&nbsp;hens per group. The treatment groups were designed in a 2 &times; 3 factorial arrangement using two levels of vitamin C (125 and 250 mg/kg of diet) and three levels of chromium picolinate (200, 400, or 800 &micro;g/kg of diet), and control group was fed basal diet. The highest values of performance were obtained if 250 mg/kg vitamin C was supplemented with either 400 or 800 &micro;g Cr per kg of diet. An interaction between vitamin C and chromium for egg production (P&nbsp;= 0.05) and feed efficiency (P&nbsp;= 0.02) was detected. Similarly, egg weight, specific gravity, egg shell thickness, egg shell weight and Haugh unit improved with diet containing 250 mg vitamin C and either 400 or 800 &micro;g Cr per kg of diet (P&nbsp;&pound; 0.05). Digestibility of dry matter (DM), ash, organic matter (OM), crude protein (CP), and ether extract (EE) were higher with higher dietary vitamin C (P&nbsp;&pound; 0.05) and also with higher Cr (P&nbsp;&pound; 0.05). There were no interactions between vitamin C and chromium detected for any parameters measured for egg quality in terms of egg weight, specific gravidity, egg shell thickness, egg shell weight and Haugh unit and digestibility of nutrients (P&nbsp;&sup3; 0.28). Data obtained in the present study shows that a combination of 250 mg vitamin C and 400 &micro;g chromium per kg of diet gave the best results in laying hens reared under a low ambient temperature and a conclusion is suggested that such a diet can be considered as a protective management practice in poultry to alleviate, at least in part, the depressive effect of cold stress on poultry performance.

scholarly journals Estimation of Shell Weight and Shell Thickness from Egg Specific Gravity and Egg Weight

1982 ◽  
Vol 61 (10) ◽  
pp. 1991-1995 ◽  
Author(s):  
JON O. NORDSTROM ◽  
L.E. OUSTERHOUT
Keyword(s):  
Specific Gravity ◽  
Shell Thickness ◽  
Shell Weight ◽  
Egg Weight

scholarly journals Utilisation of flavour treated blood-rumen content mixture in the diets of laying hens

2021 ◽  
Vol 29 (1) ◽  
pp. 34-39
Author(s):  
A. A. Adeniji ◽  
O. O. Balogun
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Shell Thickness ◽  
Laying Hens ◽  
Body Weight Gain ◽  
The Body ◽  
Rumen Content ◽  
Feeding Trial ◽  
Egg Weight ◽  
Inclusion Level

One hundred and ninety-two Harco laying hens were employed in a feeding trial lasting 42 days, to determine the optimum inclusion level (8 or 12%) of Blood-Rumen content mixture (BRC) treated with four different flavouring agents i.e. meat broth, curry and vanilla. The interaction of the BRC and flavouring agents resulted in better egg weight. The 12% inclusion of BRC in the diet resulted in higher (P<0.05) yolk colour. The body weight gain and the shell thickness also tended to increase with the increase in the BRC level of the diets. The laying trial showed that the 8% BRC diets resulted in a significantly (P<0.05) higher Hen Day production percentage (HPD) than the 12% BRC diets (82.0lvs 77.73). Curry flavouring agent gave the best HDP (P<0.05). 

Predicting Egg Weight, Shell Weight, Shell Thickness and Hatching Chick Weight of Japanese Quails Using Various Egg Traits as Regressors

2003 ◽  
Vol 2 (2) ◽  
pp. 164-167 ◽  
Author(s):  
Khurshid. A. . ◽  
M. Farooq . ◽  
F. R. Durrani . ◽  
K. Sarbiland . ◽  
N. Chand .
Keyword(s):  
Shell Thickness ◽  
Shell Weight ◽  
Egg Weight ◽  
Japanese Quails ◽  
Egg Traits

scholarly journals Effect of Dwarf and Naked Neck Gene on the Egg Production Performance in Tropics

2014 ◽  
Vol 18 (2) ◽  
pp. 115-121
Author(s):  
MK Uddin ◽  
M Ahammed ◽  
MR Rahman ◽  
MAR Howlider
Keyword(s):  
Shell Thickness ◽  
Egg Production ◽  
Egg Quality ◽  
Production Performance ◽  
Favorable Effect ◽  
Membrane Thickness ◽  
Feed Conversion ◽  
Shell Weight ◽  
Egg Weight ◽  
Naked Neck

Cocks and pullets from each of 4 genotypes; Redbro (RbRb), Naked neck (NaNa), Redbro dwarf (Rbdw) and Naked neck dwarf (Nadw) were crossed reciprocally for egg production trial. Egg quality (egg weight, egg diameter, egg length, shell thickness, membrane thickness, membrane weight, shell weight, % of shell, yolk color score, albumen diameter, albumen height, yolk diameter and yolk weight) were compared among 4 genotypes. Daily feed intakes, almost related to respected body size were reduced in Rbdw and Nadw hens by 7.41 and 19.89% than in normal sized RbRb hens. The feed conversion and hen day egg production were highest in Rbdw, intermediate in RbRb and Nadw and lowest in NaNa. Naked neck (Na) and dwarf genotypes had favorable effect on egg fertility and hatchability. Parents in both Na and dw inheritance had favorable shell thickness, shell membrane weight (%), albumen height and diameter, yolk height and diameter, albumen weight and albumen weight (%) and yolk weight, while NaNa had highest yolk weight (%). Both egg weight and chick weight percent were highest in RbRb x Rbdw genotypes, followed by RbRb, RbRb x Nadw, RbRb x NaNa, Rbdw x RbRb, Rbdw, Rbdw x Nadw, Rbdw x NaNa, Nadw x RbRb, Nadw x Rbdw, Nadw, Nadw x NaNa, NaNa x RbRb, NaNa x Rbdw, NaNa x Nadw and NaNa respectively. Chick weight as percent of egg weight irrespective of genotype was simply the functions of egg weight.DOI: http://dx.doi.org/10.3329/pa.v18i2.18167 Progress. Agric. 18(2): 115 - 121, 2007

scholarly journals A comparison of lutein, spray-dried Chlorella, and synthetic carotenoids effects on yolk colour, oxidative stability, and reproductive performance of laying hens

2013 ◽  
Vol 58 (No. 9) ◽  
pp. 412-419 ◽  
Author(s):  
M. Englmaierová ◽  
M. Skřivan ◽  
I. Bubancová
Keyword(s):  
Oxidative Stability ◽  
Reproductive Performance ◽  
Dry Matter ◽  
Laying Hens ◽  
Breaking Strength ◽  
Shell Weight ◽  
Egg Weight ◽  
Spray Dried

ISA Brown hens were fed diets supplemented with the synthetic carotenoids Carophyll Red and Carophyll Yellow at 20 and 15 mg/kg, respectively, lutein at 250 mg/kg, and the algae Chlorella at 12.5 g/kg. The synthetic carotenoids, lutein, and Chlorella significantly increased egg weight (P &lt; 0.001), shell weight (P&nbsp;&lt; 0.001), and thickness (P = 0.017) and decreased the yolk/albumen ratio (P = 0.035) of the eggs. Lutein but not the Carophylls or Chlorella significantly increased the shell breaking strength (P = 0.032). Furthermore, the carotenoids and Chlorella significantly (P &lt; 0.001) increased yolk colour, and the yolk redness increased significantly (P &lt; 0.001) in the following order: control &lt; Chlorella &lt; Carophyll &lt; lutein. Lutein and Chlorella increased the yellowness of the yolks, and boiling the eggs for 5 min increased the redness of the yolks, while boiling them for 10 min increased the lightness and reduced the colour of the yolks. Supplementation of feed with lutein and Chlorella significantly (P &lt; 0.001) increased the concentration of lutein (from 12.8 to 133.9 and 49.0 mg/kg dry matter) and zeaxanthin (from 9.2 to 123.9 and 40.1 mg/kg dry matter) in the yolks, and all carotenoids and Chlorella significantly (P &lt; 0.001) increased the oxidative stability of the lipids of fresh eggs and eggs that had been stored at 18&deg;C for 28 days. &nbsp;

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