Reproductive Performance and Egg Quality Traits of Kadaknath in Intensive Managemental Condition under Hot and Humid Climate

2018 ◽  
pp. 1
Author(s):  
Pankaj Jena ◽  
Bhagirathi Panigrahi ◽  
Niranjan Panda ◽  
Lal Mohapatra ◽  
Bandi Mallik ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Egg Quality ◽  
Quality Traits ◽  
Humid Climate ◽  
Hot And Humid Climate

scholarly journals Egg production and quality assessment of Nigerian indigenous chicken genotypes and their crosses with Marshall

2021 ◽  
Vol 43 (2) ◽  
pp. 28-36
Author(s):  
O. A Bassey ◽  
U Akpan ◽  
C. O. N. Ikeobi ◽  
O. A Adebambo ◽  
O.M.O Idowu
Keyword(s):  
Reproductive Performance ◽  
Egg Production ◽  
Egg Quality ◽  
Quality Trait ◽  
Quality Traits ◽  
Production Traits ◽  
Indigenous Chicken ◽  
Egg Weight ◽  
Better Than ◽  
Haugh Unit

This study focused on investigating the reproductive performance of Nigerian indigenous chickens and their crosses with Marshall. The genotypes were normal-feathered (Nn), frizzle-feathered (Ff) and naked neck (Na) chickens, while the crossbreds with Marshall (M) breed were MNn, MFf and MNa respectively (Marshall being the sire while the indigenous are dams). Data were taken on; weekly egg production, weight at first egg and age at first egg. Genotype significantly (P<0.05) influenced egg production traits. Egg weight ranged from 23.71±1.06g to 26.13±0.94g for indigenous purebreds and 39.75±0.75g to 48.06±0.57g for crossbreds. Age at first egg were 165.63±0.61 days (Nn), 170.60±0.75 days (Na) and 173.57±0.52 days (Ff), 188.71±1.67 days (MNn), 187.50±3.16 days (MNa) and 185.25±5.44 days (MFf). Also, genotype significantly (P<0.05) influenced egg quality traits. Heritability for first egg production traits were 0.37 (Nm), 0.16 (Na) and 0.66 (Fz) while heritability estimates for egg quality trait (haugh unit) were 0.14, 0.07 and 0.08 for Nm, Na and Fz birds, respectively The crossbreds performed better than the indigenous purebreds in egg production traits. The Nigerian indigenous chicken can therefore be improved upon for better egg production traits using the Marshall breed.

scholarly journals Genome-Wide Association Study to Identify SNPs and Haplotypes Associated with Reproductive Performance and Egg Quality Traits in Geese

2020 ◽  
Author(s):  
Guangliang Gao ◽  
Dengfeng Gao ◽  
Xianzhi Zhao ◽  
Songsong Xu ◽  
Keshan Zhang ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Selective Breeding ◽  
Genome Wide Association Study ◽  
Egg Quality ◽  
Egg Yolk ◽  
Genomic Region ◽  
Quality Traits ◽  
Genome Wide ◽  
Egg Number ◽  
Birth Body Weight

Abstract Background: Geese are one of the most economically important waterfowl worldwide. However, suboptimal reproductive performance hinders the development of the goose rearing industry. With the increasing public concern surrounding animal health and the regulation of the goose rearing industry, reproductive performance and egg quality have become a major focus for researchers. To promote the accuracy of selective breeding and identify important candidate genes associated with reproductive performance and egg quality traits, we examined the birth body weight (BBW), egg number at 48 weeks (EN48), egg number at 60 weeks (EN60) and egg yolk color (EYC) among 209 Sichuan White geese using a genome-wide association study (GWAS).Results: In this study, we obtained 2.896 Tb of raw whole-genome sequencing data with a mean depth coverage of 12.44. A total of 9,279,339 single nucleotide polymorphisms (SNPs) were identified in the goose genome. The GWAS analysis showed that 26 SNPs were significantly associated with the examined birth body weight (BBW), egg number in 48- and 60-week-old geese (EN48 and EN60) traits and egg yolk color (EYC), respectively. Notably, two genomic regions, a 28.85 kb genomic region (4512855bp ~ 4541709bp) on chromosome 35, and 294.57kb genomic region (21069009 b ~ 21363580 bp) located on chromosome 5, were significantly associated with egg number in 48- and 60-week-old geese (EN40 and EN60) egg yolk color (EYC), respectively. In addition, we performed the MALDI-TOP MS method to detected SNPs and haplotypes markers for EN48, EN60 and EYC traits were identified in the candidate gene TMEM161A, CALCR, TFPI2, and GLP1R, respectivelyConclusions: The SNPs, haplotypes markers and genes identified in this study can be used for marker-assisted selection of reproductive performance and egg quality traits in geese, promoting the accuracy of selective breeding. In addition, the identified candidate genes significantly associated with the traits provide a foundation for a better understanding of the mechanisms underlying reproduction and egg quality in geese.

scholarly journals Genome-Wide Association Study-Based Identification of SNPs and Haplotypes Associated With Goose Reproductive Performance and Egg Quality

2021 ◽  
Vol 12 ◽  
Author(s):  
Guangliang Gao ◽  
Dengfeng Gao ◽  
Xianzhi Zhao ◽  
Songsong Xu ◽  
Keshan Zhang ◽  
...  
Keyword(s):  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Reproductive Performance ◽  
Haplotype Block ◽  
Genome Wide Association Study ◽  
Egg Quality ◽  
Genome Wide Association ◽  
Quality Traits ◽  
Genome Wide ◽  
Epidermal Growth

Geese are one of the most economically important waterfowl. However, the low reproductive performance and egg quality of geese hinder the development of the goose industry. The identification and application of genetic markers may improve the accuracy of beneficial trait selection. To identify the genetic markers associated with goose reproductive performance and egg quality traits, we performed a genome-wide association study (GWAS) for body weight at birth (BBW), the number of eggs at 48 weeks of age (EN48), the number of eggs at 60 weeks of age (EN60) and egg yolk color (EYC). The GWAS acquired 2.896 Tb of raw sequencing data with an average depth of 12.44× and identified 9,279,339 SNPs. The results of GWAS showed that 26 SNPs were significantly associated with BBW, EN48, EN60, and EYC. Moreover, five of these SNPs significantly associated with EN48 and EN60 were in a haplotype block on chromosome 35 from 4,512,855 to 4,541,709 bp, oriented to TMEM161A and another five SNPs significantly correlated to EYC were constructed in haplotype block on chromosome 5 from 21,069,009 to 21,363,580, which annotated by TMEM161A, CALCR, TFPI2, and GLP1R. Those genes were enriched in epidermal growth factor-activated receptor activity, regulation of epidermal growth factor receptor signaling pathway. The SNPs, haplotype markers, and candidate genes identified in this study can be used to improve the accuracy of marker-assisted selection for the reproductive performance and egg quality traits of geese. In addition, the candidate genes significantly associated with these traits may provide a foundation for better understanding the mechanisms underlying reproduction and egg quality in geese.

scholarly journals Egg production and quality assessment of Nigerian indigenous chicken genotypes and their crosses with Marshall

2021 ◽  
Vol 43 (1) ◽  
pp. 28-36
Author(s):  
O. A. Bassey ◽  
U. Akpan ◽  
C. O. N. Ikeobi ◽  
O. A. Adebambo ◽  
O. M. O. Idowu
Keyword(s):  
Reproductive Performance ◽  
Egg Production ◽  
Egg Quality ◽  
Quality Trait ◽  
Quality Traits ◽  
Production Traits ◽  
Indigenous Chicken ◽  
Egg Weight ◽  
Better Than ◽  
Haugh Unit

This study focused on investigating the reproductive performance of Nigerian indigenous chickens and their crosses with Marshall. The genotypes were normal-feathered (Nn), frizzle-feathered (Ff) and naked neck (Na) chickens, while the crossbreds with Marshall (M) breed were MNn, Mf and MNa respectively (Marshall being the sire while the indigenous are dams). Data were taken on; weekly egg production, weight at first egg and age at first egg. Genotype significantly (P<0.05) influenced egg production traits. Egg weight ranged from 23.71±21.06g to 26.13±0.94g for indigenous purebreds and 39.75±0.75 to 48.06±0.579 for crossbreds. Age at first egg were 165.63±0.61 days (Nn), 170.60±0.75 days (Na) and 173.57±0.52 days (Ff) 188.77±1.67 days (MNn), 187.50±3.16 days (MNa) and 185.25±5.44 days (MF). Also, genotype significantly (P<0.05) influenced egg quality traits. Heritability for first egg production traits were 0.37 (Nm), 0.16 (Na) and 0.66 (Fz) while heritability estimates for egg quality trait (haugh unit) were 0.14, 0.07 and 0.08 for Nm, Na and Fz birds, respectively. The crossbreds performed better than the indigenous purebreds in egg production traits. The Nigerian indigenous chicken can therefore be improved upon for better egg production traits using the Marshall breed.

Effect of Supplementation of Multi Enzymes on Production Performance and Egg Quality Traits in White Leghorn Layers

2016 ◽  
Vol 12 (2) ◽  
Author(s):  
C. Pandian ◽  
A. Sundaresan ◽  
A. V. Omprakash
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Live Weight ◽  
Economic Benefits ◽  
Production Performance ◽  
Feed Consumption ◽  
Quality Traits ◽  
White Leghorn ◽  
Significant Difference ◽  
Enzyme Supplementation

The present study was conducted to assess the effect of supplementation of Multi-enzymes with lysophospholipids on production performance of pure line White Leghorn layers. Body weights before and after the experiment did not differ significantly across the experimental diets. Irrespective of the dietary treatments, the birds gained 3.83 per cent of live weight relative to its initial body weight. Mean per cent Hen housed egg production was significantly (Pis less than 0.05) higher in diet supplemented with 0.10 MEC-L than other groups. Mean egg weight and average daily feed consumption during 25 to 35 weeks of age indicated no significant effect of enzyme supplementation. Average daily feed consumption per bird in control, 0.05 % and 0.1% multi-enzyme supplemented groups was 108.13, 105.66 and 107.67 g respectively and birds offered control diet recorded numerically more feed intake than enzyme supplemented groups. Comparatively low feed per egg was observed in 0.10 per cent group followed by 0.05 per cent group which offers economic benefits than control diets. However, the egg quality traits between different dietary enzyme supplementation groups showed no significant difference.

scholarly journals Influence of the energy and digestible lysine contents of the diet on performance and egg quality traits of brown-egg laying hens from 19 to 59 weeks of age

2021 ◽  
pp. 101211
Author(s):  
R. Scappaticcio ◽  
J. Garcia ◽  
G. Fondevila ◽  
A.F. de Juan ◽  
L. Cámara ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Egg Laying ◽  
Quality Traits

scholarly journals Influence of Genetic Selection for Growth and Broodstock Diet n-3 LC-PUFA Levels on Reproductive Performance of Gilthead Seabream, Sparus aurata

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 519
Author(s):  
Shajahan Ferosekhan ◽  
Serhat Turkmen ◽  
Cathaysa Pérez-García ◽  
Hanlin Xu ◽  
Ana Gómez ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Egg Quality ◽  
Sparus Aurata ◽  
Genetic Selection ◽  
Growth Trait ◽  
High Growth ◽  
Gilthead Seabream ◽  
Commercial Diet ◽  
Selection For ◽  
Broodstock Diet

Genetic selection in gilthead seabream (GSB), Sparus aurata, has been undertaken to improve the growth, feed efficiency, fillet quality, skeletal deformities and disease resistance, but no study is available to delineate the effect of genetic selection for growth trait on GSB reproductive performance under mass spawning condition. In this study, high growth (HG) or low growth (LG) GSB broodstock were selected to evaluate the sex steroid hormones, sperm, egg quality and reproductive performance under different feeding regime of commercial diet or experimental broodstock diet containing either fish oil (FO) or vegetable oil (VO) based diet. Under commercial diet feeding phase, broodstock selected for either high growth or low growth did not show any significant changes in the egg production per kg female whereas egg viability percentage was positively (p = 0.014) improved by the high growth trait broodstock group. The experimental diet feeding results revealed that both growth trait and dietary fatty acid composition influenced the reproductive performance of GSB broodstock. In the experimental diet feeding phase, we observed high growth trait GSB males produced a higher number of sperm cells (p < 0.001) and also showed a higher sperm motility (p = 0.048) percentage. The viable egg and larval production per spawn per kg female were significantly improved by the broodstock selected for high growth trait and fed with fish oil-based diet. This present study results signifies that gilthead seabream broodstock selected on growth trait could have positive role in improvement of sperm and egg quality to produce viable progeny.

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