Comparative Egg Production, Quality and Hatchability in Three Chicken Genotypes under Humid Tropical Conditions

2021 ◽  
Vol 19 (1) ◽  
pp. 38-52
Author(s):  
O.P Omoyara ◽  
M.O Abioja ◽  
O.S Iyasere ◽  
L.T Egbeyale
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Shape Index ◽  
Production Quality ◽  
Internal Quality ◽  
Shell Weight ◽  
Naked Neck ◽  
Weight Percentage ◽  
Tropical Conditions ◽  
Length Width

Comparative study on egg production and hatchability characteristics in Nigerian local (NL; n=24), FUNAAB-α (F-α; n=24) and Transylvanian naked neck (TNN; n=24) chickens aged 25 weeks old was carried out for 4 weeks. Three hundred and sixty hatchable eggs each were used for quality characteristics determination and for incubation. F-α had significantly (P<0.001) higher egg production (90.3%) than TNN (76.9%) while TNN was higher than NL (58.3%). Egg weight (EWT), length, width and surface area, albumen height, weight, percentage and index, shell weight, color and internal quality unit (IQU) were significantly (P<0.001) affected by genotype. These followed the pattern: NL<F-α<TNN. F-α and TNN had significantly (P<0.001) higher values than NL in egg shape index, yolk weight, height and diameter. Yolk colour index was significantly (P<0.01) higher in TNN than in F-α. Yolk percentage and yolk-albumen ratio followed the pattern: NL>F-α>TNN. NL had (P<0.001) thicker and higher shell percentage (SP) than F-α and TNN. Higher Haugh unit (HU) was recorded in TNN than in NL and F-α. Fertility was significantly (P<0.05) higher in F-α than in TNN. Hatchability was not (P>0.05) affected by genotype. Chick weight and chick: egg ratio were significantly (P<0.001) by genotype. TNN had higher chick weight and yield than F-α and NL chicks. In conclusion, F-α laid more eggs than others, exhibited higher fertility with longer chicks at hatch. TNN is superior in EWT, HU, IQU and chick yield. NL had higher SP than others. Keywords: Egg production, Egg quality, FUNAAB alpha chicken, Hatchability, Transylvanian naked neck chicken.

scholarly journals Quail performance and egg quality at the end of production fed with varying levels of calcium

2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2395 ◽  
Author(s):  
Daniele Santos de Souza ◽  
Lígia Fátima Lima Calixto ◽  
Marina Jorge Lemos ◽  
Carlos Alberto da Silva Filho ◽  
Thiers Pascoal Pinho ◽  
...  
Keyword(s):  
Shell Thickness ◽  
Egg Production ◽  
Egg Quality ◽  
Calcium Content ◽  
Internal Quality ◽  
Egg Mass ◽  
Calcium Excretion ◽  
Feed Conversion ◽  
Weight Percentage ◽  
Japanese Quails

The goal of the present study was to evaluate the influence of increasing levels of dietary calcium on performance, egg quality, and the amount of calcium retained in the meat and excreted by Japanese quails at the final production. Four hundred 46-58-week-old Japanese quails were distributed in a completely randomized design consisting of five calcium level treatments: T1 = 2.95%, T2 = 3.25%, T3 = 3.55%, T4 = 3.85% and T5 = 4.15% calcium. The performance variables included feed intake (g bird-1 day-1), egg production (%), feed conversion by egg mass and per dozen eggs, egg mass (g), and viability. For egg quality, we assessed egg weight, percentage of albumen, yolk weight, percentage of shell, and shell thickness. We also evaluated the amount of calcium present in the meat and the amount of calcium excreted by quails. Increasing levels of calcium linearly influenced feed conversion, weight of yolk, and percentage of eggshell. Shell thickness increased up to the 3.85% calcium treatment. Calcium content of the meat differed among the quails; the quails fed the lowest level of calcium (2.95%) showed higher calcium content in meat, whereas calcium excretion increased with increasing levels of calcium in the diet. In conclusion, the addition of 3.85% of calcium in quail feed at the end of production improved eggshell quality, and maintained internal quality and performance within the recommended standards for the production phase tested in quails. Levels higher than 3.85% calcium negatively influenced the parameters analyzed.

scholarly journals Influence of strain and production cycle on egg quality traits of two Nigerian indigenous chicken strains

2020 ◽  
Vol 45 (2) ◽  
pp. 29-39
Author(s):  
V. U. Oleforuh-Okoleh ◽  
U. M. Chukwuemeka ◽  
G. O. Adeoye
Keyword(s):  
Egg Quality ◽  
Shape Index ◽  
Internal Quality ◽  
Production Cycle ◽  
Strain Effect ◽  
Quality Traits ◽  
Indigenous Chicken ◽  
Egg Weight ◽  
Naked Neck ◽  
Egg Shape

Records obtained from purebred normal feather and naked neck Nigerian indigenous chicken strains were used to assess the influence of strain and production cycle on external and internal egg quality traits. The assessment commenced from first lay to 120 days of lay, classified into four production cycles (PC): PC1 (1-30 days of lays), PC2 (31-60 days of lays), PC3 (61-90 days of lays), and PC4 (91-120 days of lays). Mean egg weight, length and breadth were 4.34% heavier, 2.10% longer and 1.72% wider in the normal feather than in the naked neck (p<0.05). No disparity due to strain effect was found in egg shape index. Eggshells from the two strains had similar weight but varied in thickness with shells from the naked neck being 0.02mm thicker than those from the normal feather (p<0.05). Eggs from the normal feather were 7.13, 5.76, 5.00, 7.10 and 8.11% superior in albumen weight, yolk height, albumen height, yolk index, and albumen index, respectively compared to its naked neck counterpart (p<0.05). Production cycle significantly influenced all external egg quality studied. An increase of 16.21% in egg weight was obtained by PC4. Egg length and breadth increased consistently with each subsequent PC (p<0.05) whereas egg shape index decreased with PC (p<0.05). Higher values were recorded for yolk weight, yolk and albumen length and width in each subsequent production cycle. Haugh unit, yolk and albumen height had best values at PC2. Our findings indicate that strain type and production cycle highly influenced egg quality traits of Nigerian indigenous chickens with the normal feather showing superiority. Furthermore, the best internal quality was obtained at PC2 (31-60 days of lay). Our findings could be useful in choosing selection criterion traits in breeding plans for the development of different layer lines of normal feather and naked neck.

scholarly journals Impact of Different Rearing Systems and Age on Bovans White Layer’s Performance, Egg Quality Traits and Synthesis of Heat Shock Protein 70 kDa

2018 ◽  
Vol 18 (4) ◽  
pp. 1045-1060 ◽  
Author(s):  
Yasin Baykalir ◽  
Ulku Gulcihan Simsek
Keyword(s):  
Heat Shock Protein 70 ◽  
Egg Production ◽  
Egg Quality ◽  
Shape Index ◽  
Quality Traits ◽  
Conventional System ◽  
Shell Weight ◽  
Organic System ◽  
Egg Weight ◽  
System P

AbstractThis study was conducted to investigate the performance of laying hens and to determine possible age-related changes on external and internal quality traits of their eggs and synthesis of heat shock protein 70 kDa (HSP70) in the conventional cage and organic rearing systems. For this purpose, 4 different Bovans White hybrid flocks of the same age were monitored in each of these two systems for 52 weeks. While a total of 360 eggs were examined to determine the effects of rearing system and age (30 and 60 weeks) on egg quality traits, 48 liver tissue samples were examined for the analysis of HSP70. Egg production (hen-day) and dirty egg ratio were higher in the organic rearing system (P<0.05). The age at 50% yield, the age at peak of lay, and peak production rate were calculated as 156, 218.75 days and 95.98% in the conventional system, and 155.75, 201.50 days, and 96.56% in the organic system, respectively (P>0.05). While egg weight, albumen weight, yolk weight, shell weight, shape index, and yolk colour were higher in the organic system, the crude ash ratio of eggshell and shell ratio were higher in the conventional system (P<0.05). It was also found that the egg weight, albumen weight, yolk weight, shell weight, and the percentage of yolk were higher at 60 weeks of age (P<0.001). The percentage of shell and albumen, shape index, and yolk colour were higher at 30 weeks of age (P<0.001). The interactions between rearing system and age were statistically significant in terms of shell thickness, shape index, crude ash ratio, and yolk colour (P<0.001). Stress protein (HSP70) level was affected only by the rearing system and was higher in the organic system (P<0.001). As a result, the organic system can be considered as advantageous in terms of egg production and quality traits and the eggs of young hens exhibited better properties. The high level of HSP70 in the organic system could indicate that hens were affected by the environmental conditions at higher rates and/or the hens reared in the organic system had a stronger antioxidant defence system.

scholarly journals Effect of exogenous Phytase on Egg Production and Egg Quality of Spent Hen

2020 ◽  
Vol 20 (1-2) ◽  
pp. 68-76
Author(s):  
MK Bashar ◽  
MAR Howlider ◽  
SM Bulbul
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Shape Index ◽  
Control Group ◽  
Egg Mass ◽  
Feed Conversion ◽  
Shell Weight ◽  
Spent Hen ◽  
Haugh Unit

The present study determined, assessed and quantified the exogenous phytase on egg production and egg quality of spent hens. Ninety laying hens (ISA- Brown) received iso-energetic and iso-nitrogenous diet supplemented with 0, 0.05, 0.1, 0.15 and 0.2 % phytase and reared in cages. Each layer was fed 120g feed/day from 90 to 100 weeks of age. At the inception of the study the spent hen at the age of 90 weeks had an average egg production 65.21 %. Phytase addition in diet increased (p<0.05) egg production  (7.67, 12.17, 12.04 and 15.87 % higher than control group), egg mass output (5.5, 9.34, 7.65 and 12.72 % higher than that of control) and feed conversion, but it did not alter shell weight, shell thickness, shape index, albumen index, Haugh unit, per cent yolk and yolk color. It was concluded that reduced egg production of spent hen at older ages to some extent might have a relationship to decreased availability of phosphorus. The decreased egg production in hens at older ages could be corrected by adding appropriate phytase level in the diet. Thus, it may be possible to extend and prolonged productive life of spent hens by supplying exogenous phytase in diet. However, the effect of availability of phosphorus on egg production using larger population for a longer period may be performed to confirm the findings of the current study. Bangladesh J. of Livestock Res. 20(1-2): 68-76, Jan-Dec 2013

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 Laying Performance, Survival Rate, Egg Quality and Shell Characteristics in Laying Pullets Offered Honey in Drinking Water during Hot Season

2016 ◽  
Vol 49 (1-4) ◽  
pp. 12-19 ◽  
Author(s):  
Monsuru Oladimeji Abioja ◽  
Maryam Oluwakemi Adekunle ◽  
John Adesanya Abiona ◽  
Olubunmi Grace Sodipe ◽  
Adebayo Vincent Jegede
Keyword(s):  
Drinking Water ◽  
Shell Thickness ◽  
Egg Production ◽  
Egg Quality ◽  
Phase 1 ◽  
Shape Index ◽  
Shell Weight ◽  
Laying Performance ◽  
Hot Season ◽  
Egg Shell

Abstract Egg production, survival, egg quality and shell characteristics in laying pullets offered honey in drinking water during hot season were determined using hens (28-week-old, n = 120) allotted to either 0 (CONTROL), 10 (10H) or 20 ml honey/L water (20H) for 16 weeks divided into 4 phases of 4 weeks each. Data on hen-day production (EP), egg weight (EW), length (EL), breadth (EB), shape index (ESI), yolk weight (YW), yolk percentage (YP), albumen height (AH), albumen weight (AW), albumen percentage (AP), Haugh unit (HU), shell weight (SW), shell percentage (SP), shell thickness (ST) and survival (SR) were subjected to ANOVA. EP was significantly (P < 0.001) affected by treatment during phases 1-4. 20H resulted in higher EP than CONTROL in phase 1. In phase 2, EP was similar in CONTROL and 20H, but 10H was lower than the two. Higher EPs were recorded in CONTROL than in honey groups (phases 3, 4). EW was significantly (P < 0.01) affected by honey in week 1 only. Birds on 10H laid heavier eggs than CONTROL. 10H hens laid significantly longer (P < 0.001) eggs with higher (P = 0.008) ESI than control hens while 20H birds had significantly lower values of AH (P < 0.01), AP (P = 0.05) and HU (P = 0.05). Honey had no significant (P > 0.05) effect on EB, YW, YP, AW, SW, SP and SR, but improved (P < 0.05) ST in the first 2 phases. To ensure improvement in egg production and egg shell thickness in laying pullets during hot season, honey at 20 ml/L water can be offered for 4 weeks.

scholarly journals Effects of dietary L-carnitine on the performance and egg quality of laying hens from 65–73 weeks of age

1997 ◽  
Vol 78 (4) ◽  
pp. 615-623 ◽  
Author(s):  
Mahmoud H. Rabie ◽  
MiháLy SziláGyi ◽  
Tibor Gippert
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Shape Index ◽  
Egg Mass ◽  
Unit Surface Area ◽  
Feed Conversion ◽  
Shell Weight ◽  
Egg Weight ◽  
Laying Performance

The effects of L-carnitine supplementation (50–500 mg/kg diet) of a practical layer diet, based on maize, soyabean and wheat, on the performance of laying hens and some indices of egg quality were studied for 8 weeks, using 65-week-old hens kept in cages. Albumen quality (albumen height and Haugh (1937) unit score) was improved, while yolk index and yolk colour score were not affected by dietary L-carnitine. The percentage of egg-white increased and that of egg yolk decreased in response to dietary supplementation of L-carnitine. Dietary L-carnitine did not influence laying performance (egg production rate, mean egg weight, daily feed intake, daily egg mass and feed conversion) or external egg quality measured by egg weight, egg-shape index or by eggshell quality, either measured directly as shell breaking strength or indirectly as shell weight, shell thickness or shell weight per unit surface area. Based on the results of the present study, L-carnitine had a beneficial effect on albumen quality and could modify the components of the edible part of the egg, during the late laying period.

scholarly journals Egg quality traits of indigenous, exotic and crossbred chickens (Gallus domesticus L.) in Rajshahi, Bangladesh

1970 ◽  
Vol 5 ◽  
pp. 63-67 ◽  
Author(s):  
M Saiful Islam ◽  
Ripon Kumar Dutta
Keyword(s):  
Egg Quality ◽  
Shape Index ◽  
Internal Quality ◽  
Phenotypic Correlation ◽  
Quality Traits ◽  
Shell Weight ◽  
Albumin Ratio ◽  
Genetic Groups ◽  
Hen’S Egg ◽  
Chicken Breeds

This study was aimed at investigating the external and internal egg quality traits along with their correlation values of an indigenous (Deshi), three exotics (Cobb 500 of Broiler, Fayoumi, and RIR) and a crossbred (Sonali derived from RIR?× Fayoumi?) chicken breeds available in Rajshahi. From a total of 50 eggs (5 breeds × 10 replicates each), the external quality traits such as gross egg weight (EW), egg length (L), egg width (W), egg volume (EV), shell weight (SW), shell ratio (SR) and egg shape index (ESI), and the internal quality traits like yolk weight (YW), albumen weight (AW), yolk ratio (YR) and albumin ratio (AR) were determined. Results showed that highly significant differences exist for both external and internal egg quality traits between the genetic groups of chicken (P<0.001). Even though RIR showed the highest EW and EV and Fayoumi had the lowest for both traits, AR was in the sequence of Cobb 500 > RIR> Indigenous> Fayoumi> Sonali. Phenotypic correlations among the egg quality traits revealed that EV was not significantly correlated with EW except for Sonali (P<0.001). The association between EW and ESI was negative in all the chickens except Sonali. However, EW was significantly correlated with the AW in RIR (P<0.001), Cobb 500 (P<0.01) and Sonali (P<0.01). Moreover, the EW was significantly correlated with YW only in Fayoumi and RIR (P<0.05). In view of the cholesterol, fat and antioxidant contents of the hen’s egg, a higher AR is healthier than a higher YR. The present findings therefore suggest that Cobb 500, RIR and Indigenous eggs are healthier than Fayoumi and Sonali eggs that contain higher YR. Key words: Egg quality traits; phenotypic correlation; Indigenous; exotic and crossbred chickens DOI: 10.3329/jles.v5i0.7352 J. Life Earth Sci., Vol. 5: 63-67, 2010

scholarly journals PERFORMANCE AND EGG QUALITY OF HENS FED COCOA HUSK BASED DIETS

2021 ◽  
Vol 25 (1) ◽  
pp. 22-24
Author(s):  
O. SOBAMIWA
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Dietary Treatment ◽  
Colour Index ◽  
Feed Consumption ◽  
Egg Mass ◽  
Shell Weight ◽  
Egg Weight ◽  
Weight Percentage ◽  
Egg Shell

Lowman Brown hens, 37 – week – old were used to study the effect of dietary inclusion of 10 and 20% cocoa husk meal (CHM) at the expense of maize on hen performance and egg quality. The trial was conducted for 10 weeks. Egg production (EP), egg weight (EW), egg mass (EM), feed consumption (FC), and feed efficiency (FC) were cost/kg egg, shell weight, percentage shell and yolk colour index. Inclusion of 10 and 20% CHM in laying hen diets had no significant effect (P <0.05) on EP, EM and FE. However, FC was high appeared to be compensated for by increased egg weight. Shell weight and percent shell were not affected by dietary treatment while the 20% CHM diet increased yolk colour index. Feed cost/kg egg was lowered by feeding the test diets. The present study has shown that laying hens can tolerate and produce eggs economically on diets incorporating up to 20% CHM.

scholarly journals Egg parameters of the Red Wattled Lapwing (Vanellus indicus) in agricultural ecosystem of Punjab

2017 ◽  
Vol 9 (3) ◽  
pp. 1419-1421
Author(s):  
Manpreet Kaur ◽  
K. S. Khera
Keyword(s):  
Specific Gravity ◽  
Shape Index ◽  
Egg Volume ◽  
Agricultural Ecosystem ◽  
Species Classification ◽  
Shell Weight ◽  
Additional Information ◽  
Volume Weight ◽  
Length Width ◽  
Egg Components

The Red Wattled Lapwing is an important bird of the agro-ecosystem of the Punjab state, feeding on insects, seeds and nectar. The present study was carried out to gather information on the egg parameters (morphometry and its components), which is lacking for this species. The eggs were observed in the nest construct-ed in the agricultural fields of Punjab Agricultural University (PAU), Ludhiana, Punjab. Egg length, width and weight were measured using vernier caliper and portable weighing balance, respectively, in laboratory. The egg parameters like egg volume, specific gravity and shape index were also calculated. Weight of egg components (yolk, albumen and shell) were also measured using weighing balance. Results revealed that average values of egg breadth, length and shape index were: 30.05±0.331 (mm), 41.29±0.573 (mm) and 72.83±0.930, respectively. Whereas whole egg weight, albumen weight, yolk weight, shell weight, albumen percentage, yolk percentage, shell percentage, egg volume and specific gravity were 17.49±0.634(gm),7.17±0.374 (gm), 9.05±0.233 (gm), 1.26±0.070 (gm), 40.84±0.941 (%), 51.92±0.830 (%), 7.22±0.280 (%), 17.07±0.531(cm3) and 1.02±0.009 (gm/cm3), respectively. This study pro-vides important information that can help the avian taxonomists in species classification, as bird’s egg diverges widely in shape, volume, weight and percentage of albumen, yolk and shell. Therefore, we can use the egg parameters as additional information in bird systematic.

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