Production performance, egg quality and biochemical parameters of Fayoumi, Rhode Island Red and their reciprocal crossbred chickens

Khawaja, Tabinda; Khan, Sohail; Mukhtar, Nasir; Ullah, Nemat; Parveen, Asia

doi:10.1080/09712119.2012.739969

Cited by 18 publications

(19 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, CS for early and late periods of lay larger than observed in our study was documented ( Roy et al., 2014 ; Wolc et al., 2019 ). Egg number reported for WL pure lines in other studies is comparable to those observed in the current study ( Liu et al., 2011 ; Khawaja et al., 2013a ). The superior performance in egg number exhibited by WL compared with RIR at 32 wk was neutralized when the birds reached 1 yr.…”

Section: Discussionsupporting

confidence: 91%

“…However, late AFE (149–155 d) was also previously reported ( Szwaczkowski et al., 2003 ; Goraga et al., 2010 ; Liu et al., 2011 ; Tomar et al., 2015 ) for the same breed. Similarly, RIR populations reared in India and Ethiopia were reported to have started laying at comparable age with birds in the current study ( Khawaja et al., 2013a ; Kumar et al., 2014 ). In several crossbreeding studies, F 1 and higher-order hybrids attained sexual maturity earlier than their parental breeds ( Tuiskula-Haavisto et al., 2002 ; Khawaja et al., 2013b ; Tomar et al.…”

Section: Discussionsupporting

confidence: 76%

See 1 more Smart Citation

Hybrids generated by crossing elite laying chickens exhibited heterosis for clutch and egg quality traits

et al. 2020

View full text Add to dashboard Cite

Crossbreeding advantage in hybrids compared with their parents, termed heterosis, has been exhaustively exploited in chicken breeding over the last century. Reports for crossbreeding of elite laying chickens covering rearing and laying period remain infrequent. In this study, resource populations of Rhode Island Red ( RIR ) and White Leghorn ( WL ) pure-bred chickens were reciprocally crossed to generate 4 distinct groups that were evaluated for prelaying growth, egg production, and egg quality. Birds monitored for prelaying growth consists of 105 (RIR), 131 (WL), 207 (RIR × WL) and 229 (WL × RIR), and 30 pullets from each group were evaluated. Egg laying records were collected from 102, 89, 147, and 191 hens in the 4 populations, respectively. In addition, expression of 5 candidate genes for egg production in the ovarian follicles was measured by RT-qPCR. Results showed that BW of hatched chicks in the WL line was higher than the other populations. However, the 2 crossbreds grew faster than WL purebred throughout the prelaying period. Low to medium heterosis was observed for BW and body length before the onset of lay. White Leghorn and the hybrids commenced laying earlier than RIR pullets and egg production traits were favorable in the crossbreds compared with purebreds. Heterosis for egg number and clutch size was moderate in WL × RIR but low in RIR × WL hens. Expression of antimullerian hormone gene was high in WL and RIR × WL hybrids, suggesting WL parent-specific enhancing dominant expression. Shell weight was higher in the crossbreds than purebreds at 52 wk of age, but RIR hens laid eggs with higher shell ratio than the other populations ( P < 0.05). Conversely, WL and the hybrids had higher eggshell strength than RIR birds ( P < 0.05). Eggshell strength was the only egg quality trait that showed heterosis above 10% in WL × RIR hybrids at 32 and 52 wk of age. White Leghorn × RIR hens demonstrated higher percent heterosis for economic traits than birds of the reciprocal hybrid. This means that RIR breed is a better dam than a sire line for growth, egg laying, and egg quality traits.

show abstract

Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 76%

Hybrids generated by crossing elite laying chickens exhibited heterosis for clutch and egg quality traits

et al. 2020

View full text Add to dashboard Cite

show abstract

“…This research found a high phenotypic correlation between egg weight and albumen weight (0.455), and also a highly significant correlation between egg weight and albumen weight (0.760). The findings determined in this research are in agreement with the reports of Tebesi et al (2012), Alkan et al (2013) and Khawaja et al (2013). They found highly significant correlations between the egg weight with yolk weight and albumen weight.…”

Section: Resultssupporting

confidence: 83%

Effects of egg weight on egg quality traits in partridge (Alectoris Chukar)

Alkan

Galiç

Karslı

et al. 2014

Journal of Applied Animal Research

View full text Add to dashboard Cite

In this study, the aim was to determine the internal and external quality traits of partridge (Alectoris chukar) eggs as well as the Pearson correlation coefficients among these traits. For use in this research, a total of 200 partridge eggs were collected over three sequential days. The partridges were housed at the Research Unit of Animal Science, Faculty of Agriculture, University of Akdeniz. The eggs were categorized according to weight and classified as ≤19.0 g, 19.1-20.0 g, 20.1-21.0 g and ≥21.1 g. Average eggshell thickness was highest in groups of 20.1-21.0 g and ≥21.1 g. In contrast, lowest eggshell weight was calculated in groups of ≤19.0 g and 19.1-20.0 g. In this study, egg shape index, yolk index, Haugh unit, albumen width and unit surface shell weight were not significantly affected by egg weight groups. Whereas egg length, egg width, shell weight, shell thickness, shell surface area, egg volume, yolk weight, yolk height, yolk width, yolk ratio, albumen height, albumen length, albumen weight, albumen index, albumen ratio and yolk/albumen ratio were significantly affected by egg weight groups. At the same time, there was found a significant relationship amongst the internal and external egg quality traits.

show abstract

“…Chickens have been bred for a variety of purposes, including eggs, meat, and game [68]. For example, CN was bred for meat, WL for eggs, and RIR for both purposes [69]. The result of this breeding leads to unimaginable increases in productivity not found in RJF and is also found in various forms of variation on the genome [70].…”

Section: Discussionmentioning

confidence: 99%

Identification of Copy Number Variation in Domestic Chicken Using Whole-Genome Sequencing Reveals Evidence of Selection in the Genome

Seol

Kim

et al. 2019

Animals

View full text Add to dashboard Cite

Simple SummaryChickens have been bred for meat and egg production as a source of animal protein. With the increase of productivity as the main purpose of domestication, factors such as metabolism and immunity were boosted, which are detectable signs of selection on the genome. This study focused on copy number variation (CNV) to find evidence of domestication on the genome. CNV was detected from whole-genome sequencing of 65 chickens including Red Jungle Fowl, broilers, and layers. After that, CNV region, the overlapping region of CNV between individuals, was made to identify which genomic regions showed copy number differentiation. The 663 domesticated-specific CNV regions were associated with various functions such as metabolism and organ development. Also, by performing population differentiation analyses such as clustering analysis and ANOVA test, we found that there are a lot of genomic regions with different copy number patterns between broilers and layers. This result indicates that different genetic variations can be found, depending on the purpose of artificial selection and provides considerations for future animal breeding.AbstractCopy number variation (CNV) has great significance both functionally and evolutionally. Various CNV studies are in progress to find the cause of human disease and to understand the population structure of livestock. Recent advances in next-generation sequencing (NGS) technology have made CNV detection more reliable and accurate at whole-genome level. However, there is a lack of CNV studies on chickens using NGS. Therefore, we obtained whole-genome sequencing data of 65 chickens including Red Jungle Fowl, Cornish (broiler), Rhode Island Red (hybrid), and White Leghorn (layer) from the public databases for CNV region (CNVR) detection. Using CNVnator, a read-depth based software, a total of 663 domesticated-specific CNVRs were identified across autosomes. Gene ontology analysis of genes annotated in CNVRs showed that mainly enriched terms involved in organ development, metabolism, and immune regulation. Population analysis revealed that CN and RIR are closer to each other than WL, and many genes (LOC772271, OR52R1, RD3, ADH6, TLR2B, PRSS2, TPK1, POPDC3, etc.) with different copy numbers between breeds found. In conclusion, this study has helped to understand the genetic characteristics of domestic chickens at CNV level, which may provide useful information for the development of breeding systems in chickens.

show abstract

Production performance, egg quality and biochemical parameters of Fayoumi, Rhode Island Red and their reciprocal crossbred chickens

Cited by 18 publications

References 25 publications

Hybrids generated by crossing elite laying chickens exhibited heterosis for clutch and egg quality traits

Hybrids generated by crossing elite laying chickens exhibited heterosis for clutch and egg quality traits

Effects of egg weight on egg quality traits in partridge (Alectoris Chukar)

Identification of Copy Number Variation in Domestic Chicken Using Whole-Genome Sequencing Reveals Evidence of Selection in the Genome

Contact Info

Product

Resources

About