Egg quality, geometry and hatching traits of indigenous Aseel as influenced by organic and inorganic selenium supplementation

Author(s):  
Waseem Muhammad Zia ◽  
Anjum Khalique ◽  
Saima Naveed ◽  
Jibran Hussain

This study was conducted to evaluate the impact of selenium sources on egg and hatching traits of native Aseel chicken. Selenium-treated 21-weeks-aged 84 pullets and 12 cockerels from Lakha, Mushki, Peshaweri and Mianwali varieties (21 pullets and 3 cockerels per variety) were divided into three treatment groups A, B and C (7 pullets and 1 cockerel per group). Group A and B were experimental and C was control. Ration for group A was included 0.3 mg/kg Se-yeast, B was included 0.3 mg/kg sodium selenite and C with No selenium. Se-yeast supplementation presented increased egg weight, shell thickness, yolk index, Haugh units; enhanced egg length, breadth, volume, shape index and surface area; decreased dead germ%, dead in shell%, clear egg% and enhanced hatchability%, the hatch of fertile% and chick weight. Present study concluded that Se-yeast is a superior supplement in improving egg quality, geometry and hatching features of indigenous Aseel varieties.

2020 ◽  
Vol 36 (2) ◽  
pp. 181-190
Author(s):  
Zdenka Skrbic ◽  
Milos Lukic ◽  
Veselin Petricevic ◽  
Snezana Bogosavljevic-Boskovic ◽  
Simeon Rakonjac ◽  
...  

The comparison of physical quality properties of table eggs of commercial hybrid Tetra SL and two native indigenous breeds of hens, Banat Naked Neck and Svrljig hen, was performed in conditions of alternative production in the pasture system in portable cages without the floor. The experiment was conducted during the vegetation period, at the age of hens of 53-57 weeks. In order to produce good quality eggs, the diet was designed with a complete mixture based on maize and soybean. In addition, constant availability of pastures was ensured. Egg sampling was performed in the morning and the initial egg quality was examined based on egg weight, shape index, egg white, egg yolk and shell quality parameters. Layer hens of the commercial hybrid Tetra SL had significantly higher egg weight and better internal egg quality (p<0.01) compared to hens of Banat Naked Neck and Svrljig hens, except for the colour of the yolk, which was more intense in the same feeding and breeding conditions and the age of laying hens, in eggs of native breeds (p<0.01). Native breeds in relation to the commercial hybrid had lighter shell colour (p<0.01). Deformation and egg shell thickness differed (p<0.01) between all three genotypes. The determined rank of layer hen genotypes for shell thickness was: Tetra SL, Banat Naked Neck, Svrljig hen. However, the breaking force was without statistically confirmed difference between hen genotypes.


2019 ◽  
Vol 17 (1) ◽  
pp. 49-55 ◽  
Author(s):  
H. Lukanov ◽  
A. Genchev ◽  
P. Kolev

The aim of the study was to evaluate egg quality traits in three heavy Japanese quail populations created and reared in the Poultry Breeding Unit of the Trakia University – Bulgaria, marked as WG, GG and GL. In the experiments, 160 female birds from populations WG and GG, and 96 birds from population GL were tested up to the 6th production month. The main egg quality traits were controlled. The highest average egg weight was registered in WG group and the lowest in GL group, 14.04±0.32 g and 12.79±0.29 g respectively (p<0.05). The highest average Shape index was observed in group GG (78.31±0.53%), vs the lowest in WG quails (77.55±0.62%). Albumen proportion is almost 2/3 of egg mass, with average values from 57.14% in group WG tо 59.90% in group GG. Yolk proportion was about 30%, with smaller differences between the groups. The shell share from all tested groups comprised between 10.95 and 12.58% of egg weight. Average shell thickness was the greatest in eggs of WG quails (223.53±5.52 μm), and the lowest – in GG quails (216.91±6.83 μm). Egg quality traits were typical for the meat productive type of Japan quails.


2021 ◽  
Vol 49 (2) ◽  
pp. 108-118
Author(s):  
N Baskota ◽  
M Sharma ◽  
N Bhattrai ◽  
D Neupane ◽  
RK Yadav ◽  
...  

This study was undertaken to evaluate the egg quality parameters of New Hampshire and Giriraja by maintaining four different flocks (lines) of New Hampshire viz. NH-Khajura, NH-Parwanipur, NH-Khumaltar and NH-Pokhara and three different flocks (lines) of Giriraja viz. GR-Pakhribas, GR-Khumaltar and GR-Tarhara. The 40-60 weeks of hatchability, fertility, external and internal egg quality parameters were studied and recorded. A total of 200 birds (40 weeks of age) of each New Hampshire and Giriraja from each line were maintained on deep litter system. Results from this study indicated the significant effect of genotype and respective lines on fertility and hatchability of eggs. Significant (P<0.05) variation in fertility and no significant variation in hatchability for genotypes were found. However, in terms of fertility and hatchability, there were significant variations in different lines. In case of egg weight:  no significant (P<0.01) variation was obtained for genotype but lines comparison showed significant variation. Other external egg quality parameters like egg length, egg diameter, shape index, shell thickness were examined for evaluating the genotype and line effect. In all these external egg quality parameters, there were significant (P<0.01) effect of both genotype and lines of birds. For internal egg qualities, yolk weight (g), yolk index, albumen weight and albumen index were checked. Genotype had no significant (P<0.01) effect but lines had significant (P<0.01) effect on yolk weight. In case of yolk index, both genotype and lines of bird had no significant effect. For albumen weight and albumen index, genotype of birds had no significant (P<0.01) effect but lines of bird had significant (P<0.01) effect on both parameters. The study showed that the egg quality parameters of NH (Khajura) were better than that of GR. Among different lines New Hampshire (Khajura) showed better performance in terms of egg quality parameter. Bang. J. Anim. Sci. 2020. 49 (2): 108-118


Author(s):  
Waseem Muhammad Zia ◽  
Anjum Khalique ◽  
Saima Naveed ◽  
Jibran Hussain ◽  
Imran Muhammad

The aim of study was to determine the impact of different selenium sources on blood biochemical picture of Aseel. Three-weeks-old 240 Aseel chickens (120 and 120) from Lakha, Mushki, Peshaweri and Mianwali varieties were randomly distributed into four groups; 60 birds/variety (30 and 30). The birds of each group of either sex were further subdivided into A, B (experimental) and C (control) treatment groups with 10 birds each. Group A and B were fed the diet containing 0.3 mg/kg Se-enriched yeast and sodium selenite, respectively, while group C was fed diet without selenium (control diet). Birds were maintained individually in cages from 4 to 21 weeks. In blood serum, glutathione peroxidase (GPx) levels increased (P£0.05) while, total cholesterol and thyroxin (T4) levels decreased (P£0.05) in Se-yeast supplemented group than sodium selenite supplemented or control group. The study concluded that Se-enriched yeast gave the superior performance to improve blood biochemical profile of Aseel.


Author(s):  
Adam Kraus ◽  
Lukáš Zita ◽  
Ondřej Krunt ◽  
Zdeněk Volek ◽  
Milan Tyller ◽  
...  

This study was focused on the comparison of the brown and white eggs from two laying hybrids. The objective was to assess basic quality traits of eggs from both groups of hens and compare them. The impact of how age influences the technological value of eggs was also observed. The most important correlations were calculated. Products of Czech original genetic programmes, Dominant Brown D 102 and Dominant Leghorn D 229 hens were included. A total of 1500 eggs were analysed. The egg collection was made for three consecutive days when the hens were at the 28, 35 and 59 weeks of age. The results showed that eggshell weight, yolk weight and yolk share increased with the age, while egg shape index, yolk index and albumen share decreased in both hybrids. Eggshell weight and share fluctuated with the age in both hybrids. Other traits differed within the hybrids. Interactions between age and hybrid were non-significant (P > 0.05) only in eggshell and yolk weight. The heaviest eggs were from 59-week-old Dominant Brown D 102 hens (68.89 g) and the lightest eggs were from 28-week-old Dominant Leghorn D 229 hens (57.76 g). Highly significant (P ≤ 0.001) positive correlations were found between egg weight and all individual egg components weights and between eggshell weight and yolk and albumen weight and eggshell thickness in both laying hybrids.


Author(s):  
Emine Polat Yurtseven ◽  
Ahmet Şekeroğlu ◽  
Brian Tainika ◽  
Mustafa Duman ◽  
Yunus Emre Şentürk

This study compared egg quality parameters in layers under free-range system with prefabricated pens and backyard while emphasizing hen age. A total of 300 eggs collected from prefabricated pens and backyard farming families in the Çamardı District of Niğde Province were used as study materials. The assessed external and internal egg quality characteristics included egg weight, shape index, shell thickness, shell breaking strength, albumen index, Haugh unit, yolk index, and yolk colour. The effect of production system on albumen index, Haugh unit, and yolk colour score was found statistically significant. There was a significant effect of age on shape index, shell thickness, shell breaking strength, albumen index, Haugh Unit, yolk index, and yolk colour score. The effect of interaction between age and production system was statistically significant for shape index, shell thickness, yolk index, Haugh Unit, and yolk colour score. It was determined that the egg`s meat and blood spots percentages from the free-range and backyard systems were 10.6% and 15.3%, respectively. It was concluded that while eggs produced from free-range system are superior in terms of egg weight, shape index, and Haugh unit those obtained from backyard hens are higher in eggshell thickness, eggshell breaking strength, and egg yolk colour.


2018 ◽  
Vol 34 (2) ◽  
pp. 207-215
Author(s):  
Marinko Vekic ◽  
Stoja Jotanovic ◽  
Djordje Savic

This paper presents results of determination of certain quality parameters and its phenotypic correlation in eggs originated from extensively reared gray variety of Guinea fowl. A total of 150 egg collected by sampling 30 eggs in each of five analyzed laying months were used for egg quality evaluation and statistical analysis by methods of descriptive statistics and simple linear correlation. Average egg weight, shape index and shell thickness was 38.14 g, 76.03% and 0.49 mm, respectively. Average shell, yolk and albumen weight was 5.83, 12.16 and 20.23 g, respectively, and its proportion was 15.23, 32.10 and 52.69%, respectively. Average values of yolk height, diameter, index and color were 16.54 mm, 39.95 mm, 41.50%, and 13.76, whereas values for albumen diameter, index and height as well Haugh units were 59.30 mm, 9.62%, 5.67 mm, and 82.58, respectively. Majority of examined quality parameters showed significant correlation with other parameters. Egg weight was positive correlated (p<0.01) with egg length (0.76) and width (0.92), shape index (0.22), shell thickness (0.60), shell weight (0.81) and proportion (0.44), albumen (0.92) and yolk weight (0.77) and yolk index (0.23), but in negative connection (p<0.01) with yolk proportion (-0.54), yolk/albumen ratio (-0.41) and albumen index (-0.25). Determined egg quality indicated good potential of this species in extensive rearing, which could be improved and used in more favorable rearing conditions.


2021 ◽  
Vol 21 ◽  
pp. 66-70
Author(s):  
S. N. Ibe ◽  
J. C. Okonkwo

Repeatability of 22 -, 26, 30 - and 32 - week egg weight (EW)., shell thickness (ST), Haugh (1955) unit (HU), yolk index (Yl)and shape, index (SI) was estimated based on the first three eggs laid in the week by fifty - six commercial Harco pullets. There was a consistent increase in repeatability estimates for these traits as laying age progressed. The estimates ranged from 0.67 to 0.85, 0.53 to 0.84., 0.51 to 0.87, 0.20 to  0.61 and 0.26 to 0.52 for EW, ST, HU, YI and Si, respectively. While repeatability of EW  increased by 0.02 units per week, that of HU increased by 0.03 and 0.04 unit per week, respectively. Repeatability of EW, ST and HU showed a linear relationship with age, whereas that of YI and ȘI showed a linear relationship with age, whereas that of YI and SI showed a curvilinear relationship with age. The general increase in repeatability of each trait with age indicates that fewer records will be required to adequately characterize the inherent producing ability of each hen for the trait as laying age progressed. 


2021 ◽  
Vol 21 ◽  
pp. 71-75
Author(s):  
J. C. Okonkwo ◽  
S. N. Ibe

Repeatability estimates of 0.09 for egg number to 30 weeks of age; 0.67, 0.53, 0.51 0.20 and 0.26 for egg weight (EW), shell thickness (ST), Haugh unit (HU), yolk index (YI) and shape index (SI), respectively, at 22 weeks of age; and 0.85, 0.78, 0.82, 0.49 and 0.62 for the same traits, respectively at 30 weeks of age were obtained in a flock of exotic commercial pullets reared in cages. The expected relative genetic gain per generation of selection for repeated records was inversely related to the magnitude of repeatability. Thus, as laying progressed, repeatability estimates became higher and expected genetic gain from using additional records decreased and fewer records were required to characterize the pullets for inherent transmitting ability. While 4 eggs per hen areconsidered adequate for 22 - week EW, ST and HU, 8 eggs are required for YI and ŞI. The considered numbers of eggs for corresponding traits at 30 weeks are 3 and 4, respectively. Measurements on 10 eggs per hen are required for egg number to 30 weeks.


Author(s):  
Sendekie Amare Sisay ◽  
Kasahun Habtamu Ayalew ◽  
Alemayhu Yohannes Dagnew

Egg quality treats are significantly impacted by nutritional factors either deficient or excessive quantities in the layer diets. In this study one hundred eight, 32 weeks age of Bovans Brown chickens were used as an experimental animals. Four iso-nitrogenous and iso-caloric based ration diets were formulated. The level of ration replacing NSC by TTLM was at 0%(T1), 5%(T2), 10%(T3) and 15%(T4) from the total ration. Complete Randomized Design (CRD) was used with four treatments, three replicate (9chicken/replicate) and the experiment lasted for 12 weeks. Egg quality parameters were determined at the interval 28 days by randomly taking 5 freshly-laid eggs from each replication and determine egg size, eggshell, albumen and yolk quality by using different measurement parameters. The results showed that egg shape index, yolk weight (g) and yolk ratio (%) were similar (P>0.05) among treatment groups. Eggshell thickness and yolk color score were significantly varied (p<0.05) with different levels of TTLM substitution. In the present study shell thickness, shell weight and shell ratio were higher in the treatment groups (5, 10 and 15% TTLM) than the control (0%) diets. The study showed that shell thickness ranged from 0.32-0.38 mm at T1 and T3 TTLM, respectively. Haugh unit (84.04±1.79) and albumen height (7.01±0.23) were highest (P<0.05) at T3 than the other treatments. Based on results most of the external and internal egg quality parameters were significantly changed when the level of TTLM increased up to15% than the control diet and it implies a great opportunity in utilizing TTLM.


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