Different Selection Strategies for the Improvement of the Growth Performance and Carcass Traits of Japanese Quails

Ahmad, Sohail; Mehmood, Shahid; Javed, Khalid; Mahmud, Athar; Usman, Muhammad; Rehman, Aziz Ur; Ishaq, Hafiz Muhammad; Hussain, Jibran; Ghayas, Abdul

doi:10.1590/1806-9061-2018-0733

Cited by 13 publications

(13 citation statements)

References 17 publications

(18 reference statements)

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“…This might be attributed to the superior genetic potential of WJQS than GJQS, which lead to higher marketing bodyweight and produced more massive carcass and more meat. These observations are consistent with Ojedapo et al [ 21 ] and Ahmad et al [ 22 ] who reported a strong genetic correlation between body weight and carcass traits. Similarly, other studies [ 25 – 27 ] reported higher carcass yield in selected heavy lines of Japanese quail superior to that of a non-selected.…”

Section: Discussionsupporting

confidence: 93%

“…Moreover, the obtained results confirm the physiological variations between WJQS and GJQS, which may be due to the existence of genetic variation between them. The obtained results agree with several workers that reported a positive correlation between live body weight and morphometric body measurements in Isa Brown and Ilorin ecotype chickens [ 20 ], in two commercial broiler strains [ 21 ], in Japanese Quails [ 22 ], in the French broiler guinea fowl [ 23 ], and two commercial meat-type chickens [ 24 ]. Moreover, it is well-known that body weight is considered the most important physiological indices for evaluating different livestock species for numerous reasons, including its relation with body growth and other physiological traits such as body morphometric measurements, carcass characteristics, and breast meat yield.…”

Section: Discussionsupporting

confidence: 91%

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Genetic and physiological variation in two strains of Japanese quail

Ibrahim

El-Sayed

Assi

et al. 2021

Journal of Genetic Engineering and Biotechnology

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Background Detecting the genetic and physiological variations in two Japanese quail strains could be used to suggest a new avian model for future breeding studies. Consequently, two estimations were performed on two Japanese quail strains: gray quail strain (GJQS) and white jumbo quail strain (WJQS). The first estimation was conducted on carcass characteristics, breast muscles, breast concentration of collagen type I, and body measurements. In contrast, blood samples were collected for the second estimation for genomic DNA extraction and genetic analysis. Results A total of 62 alleles out of 97 specific alleles (63.92%) were detected overall loci (14 microsatellite loci) for the two strains. A total of 27 specific alleles of WJQS were observed, and 35 were obtained for GJQS. The percentage of similarity was 48.09% ranged from 4.35 with UBC001 to 100% with GUJ0051. WJQS had greater body weights and a higher value of pectoral muscle and supracoracoideus muscle than GJQS. The breast muscles of GJQS exhibited a higher concentration of type I collagen than the WJQS. Furthermore, males showed higher concentrations of collagen type I than females. WJQS showed a higher body length, chest girth, chest length, thigh length, thigh girth, drumstick length, and drumstick girth (cm) than GJQS. WJQS showed more significant differences in carcass traits compared with GJQS. Conclusion The physiological differences between WJQS and GJQS were ascertained with microsatellite markers, which indicated high polymorphism between these strains. These observations provided a scientific basis for evaluating and utilizing the genetic resources of WJQS and GJQS in a future genetic improvement program.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 91%

Genetic and physiological variation in two strains of Japanese quail

Ibrahim

El-Sayed

Assi

et al. 2021

Journal of Genetic Engineering and Biotechnology

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“…Peebles et al (1999) found a positive association between breeder age and FCR of the progeny. Similarly, FCR improvements were also reported with the advancement of breeder age in Japanese quails (Ahmad et al, 2018). In the study of Amao (2017), naked-neck chickens showed better FCR relative to Rhode Island Red birds.…”

Section: Feed Conversion Ratiomentioning

confidence: 71%

“…These results are consistent with those of Braun et al (2002), who also observed a positive trend between duckling body weight and breeder age and reported that the offspring of young breeders (24 weeks old) grew at a slower rate after hatch compared with ducklings of breeders of intermediate (31 weeks old) and older ages (47 weeks old). However, Ahmad et al (2018) reported higher weight gain in the progeny from young Japanese quail breeders (10 weeks old) than those from 12-and 14-week-old breeders.The higher body weight of the progeny of older breeders may be attributed to the higher egg weight laid, resulting in heavier hatchling weight, which was probably was sustained during later ages. Relative to the effect of naked-neck genotype, Pavlovski et al (2009) also found significant BWG differences among naked-neck chicken varieties, with higher values obtained in white than in gray and black varieties.…”

Section: Body Weight Gainmentioning

confidence: 78%

“…On the other hand, non-significant FI differences were reported in broilers from breeders of different ages, revealing no association between breeder age and progeny feed intake (Franco et al 2010). In a study with Japanese quails, feed intake did not significantly differ among the progenies of 10-, 12-and 14-weekold breeders (Ahmad et al, 2018). In the present study, cumulative average feed intake (20 weeks) of both male and female progenies did not differ among varieties (p=0.2919) and no interaction of sex with breeder age was detected (p=0.8878).…”

Section: Feed Intakementioning

confidence: 88%

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Effect of Breeder Age on the Progeny Performance of Three Naked-Neck Chicken Phenotypes

Azhar

Mahmud

Usman

et al. 2019

Braz. J. Poult. Sci.

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The study was planned to evaluate the effect of different naked-neck (NN) chicken genotypes and breeder ages on the growth performance of their progenies. A total of 126 chicks, from two breeder ages and three NN varieties, were reared up to 20 weeks of age. A randomized complete block design in factorial arrangement, with six treatments of seven replicates of two females and one male each, was applied. Treatments consisted of three NN varieties (light brown, black, and dark brown) and two breeder age groups (45 and 55 weeks old). Growth performance (body weight gain, feed intake and feed conversion ratio) were evaluated. Higher feed intake was observed in both the male and female progenies of 55-week-old compared with 45-week-old breeders. Light brown males had higher weight gain than dark brown males, whereas in the female progeny, higher weight gain was obtained in the black variety than that in the light brown and dark brown varieties. Regarding breeder age groups, both male and female progenies of 55-week-oldbreeders exhibited higher weight gain than those of 45-week-old breeders. The male progeny of 55-week-old black breeders showed the highest body weight gain among all treatments. Regarding female progeny, higher weight gain was observed in the black variety compared with the light brown and dark brown variety, and in the progeny of 55-week-old breeders than in the progeny of 45-week-old breeders. The interaction between factors showed that females from 55-week-old black breeder has the highest weight gain, whereas the lowest weight gain was found in the progeny of 45-week-old light brown breeders. The male progeny of light brown breeders showed better FCR than those of black and dark brown breeders and of 55-week-old breeders compared with that of 45-week-old breeders. The best FCR was obtained in the progeny of 55-week-old light brown breeders. In females, while no influence of breeder age was detected, better FCR was determined in black than in dark brown and light brown varieties; however, the interaction between factors was significant, with the best FCR obtained in the female progeny of 55-week-old black breeders, and worst in the progeny of 45-week-old light brown breeders. In conclusion, the light brown and black varieties of naked-neck chickens and the progeny of 55-week-old breeders presented better growth performance.

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Assessment of variations in productive performance of two different plumage color varieties of Japanese quail and their reciprocal crosses

Elkhaiat

El‐Kassas

Eid

et al. 2023

Trop Anim Health Prod

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This study aimed to detect the phenotypic differences between the brown (BB) and white (WW) feathered quails and their reciprocal crosses (BW and WB) over two successive generations. The WW and cross quails, especially the BW, had the heaviest body weights, throughout the studied period, with significant variations between the two studied generations (P<0.05). Moreover, the WW and BW possessed the largest egg production during the F1, while in the F2, the BB had superiority among the studied quails with a prominent superiority of the F2 over the F1 (P<0.05). However, the F1 had higher egg weights than F2 with superiority of WW quails compared to the others (P<0.05). Also, the WW quails had the lowest lipid contents of the eggs. These phenotypic variations among the studied quails might be preliminarily explained by the results of the analyzed microsatellite markers despite the few markers used. The high variability among the BW and WB quails might be due to the larger number of alleles (NA and Ne) and the lower values of FIS with low heterozygosity levels (HO and He). Moreover, the BW and BB were the closest, while WB and WW were the farthest because of the high and low genetic identities and the high and low genetic distance between them, respectively. So the obtained results might introduce an initial scientific basis for evaluating and employing the genetic properties of BB, WW, BW, and WB quails in further genetic improvement program, and more microsatellite markers are recommended.

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Different Selection Strategies for the Improvement of the Growth Performance and Carcass Traits of Japanese Quails

Cited by 13 publications

References 17 publications

Genetic and physiological variation in two strains of Japanese quail

Genetic and physiological variation in two strains of Japanese quail

Effect of Breeder Age on the Progeny Performance of Three Naked-Neck Chicken Phenotypes

Assessment of variations in productive performance of two different plumage color varieties of Japanese quail and their reciprocal crosses

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