Alterations in plasma constituents, growth and egg production traits due to selection in three genotypes of Japanese quail

Farahat, G. S.; Mahmoud, B. Y. F.; El-Komy, E. M.; El-Full, E. A.

doi:10.1017/s002185961700096x

Cited by 5 publications

(6 citation statements)

References 12 publications

(19 reference statements)

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“…The selected line attained AFE at earlier age with heavier BWAFE and lower DN10 and AGE10 than the control line whereas, the control line had insignificantly heavier AEWFM than selected line (Table 2). Similarly, line had significant effect on AFE as reported by Farrag (2011), Narendra Nath et al (2011, Sadeghi et al (2013), Mahmoud et al (2014), Emam (2015), Meabed (2015) and Farahat et al (2018). However, Karabağ et al (2010) and Alkan et al (2013) reported insignificant line effect on AFE.…”

Section: Results and Discussion Performance Of Egg Production-relatedmentioning

confidence: 62%

“…Emam (2015) reported that selection for high BW21 resulted in desirable decrease in DN10 of -11.71 days for the selected line fed 24% CP diet quails vs. 13.28 days for the control fed 24% CP diet quails. There were significant differences among lines for DN10 favoring the selected line for selection index (AFE, BWAFE and DN10) and trends of selection changes were towards early maturity and shorter DN10 (Mahmoud et al, 2014and Farahat et al, 2018. Regardless of generation number, averages for AEW were higher in selected lines for high body weight than those in the control lines (Karabağ et al, 2010, Farrag, 2011and Narendra Nath et al, 2011.…”

Section: Results and Discussion Performance Of Egg Production-relatedmentioning

confidence: 99%

“…Whereas, Farrag (2011) and Sadeghi et al(2013) reported lower fertility% and hatchability from fertile egg for that selected lines than the control line. As well as there were significant differences due to line effect on fertility% and hatchability from fertile egg reported by Farahat et al (2018). Karagecili and Karadaş (2017) reported that intensive selection applied on commercial poultry caused high metabolic rate of embryos and their nutritional requirements have also increased, deficiency to meet these requirements nutrition has negative effects on some traits such as embryonic development, fertility and hatchability .…”

Section: Performance Of Fitness Traits: Generation Effect On Fitness mentioning

confidence: 99%

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Effects of Selection for Fast Growth Rate on Japanese Quail Laying Performance and Fitness Traits

Emam¹

2020

EPSJ

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This work aimed to study the effects of selection for fast growth rate on some laying and fitness performance in Japanese quail using 1157 females (706 for the selected line and 451 for the control line). The most important results obtained as follows: Generation significantly affected all egg studied traits indicating that the 4 th generation (G4) had the earliest age at first egg (AFE) and age at the first ten eggs (AGE10) accompanied by the heaviest body weight at first egg (BWAFE) and desirably had lower days needed to produce the first ten eggs (DN10) and laid heavier average egg weight (AEWFM) (48.98 day, 60.87 day, 260.77 g, 13.12 day and 11.88 g respectively) and had higher number of eggs (ENFM), heavier egg mass for the first month of production (EMFM), and favorably lower pause duration length (PDLFM) than other generations being of 24.53 egg, 291.32 g and 1.76 day, respectively. Moreover, the G4 had higher fertility (88.20%) and hatchability (85.42%) associated with preferably lower early and late embryonic mortality% than other generations. The selected line attained AFE at earlier age (50.63 day) with heavier BWAFE (260.59g) and lower DN10 (14.06 day) and AGE10 (64.44 day), laid more ENFM (22.63egg), higher EMFM (263.67g), earlier age after first month of production (AGEFM, 80.63 day), larger clutch size (CSFM, 5.20) and shorter PDLFM (1.89 day) and had preferably higher fertility (80.69%), hatchability (74.14%) but undesirably higher early embryonic mortality% (2.68%) than the control line. There were favorable negative correlations between growth rate during 1-21 days of age (GR1-21.) And each of AFE, DN10, AGE10, PDLFM and AGEFM and had preferably positive rg's with each of BWAFE, ENFM, EMFM, clutch number for the first month of production and CSFM, it seemed these traits can be indirectly improved through the selection for fast GR1-21.

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Section: Results and Discussion Performance Of Egg Production-relatedmentioning

confidence: 62%

Section: Results and Discussion Performance Of Egg Production-relatedmentioning

confidence: 99%

Section: Performance Of Fitness Traits: Generation Effect On Fitness mentioning

confidence: 99%

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Effects of Selection for Fast Growth Rate on Japanese Quail Laying Performance and Fitness Traits

Emam¹

2020

EPSJ

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“…The remarkable improvement in the productivity of many poultry species is due to selection programs that focused on rapid growth with not neglecting environmental factors such as feeding and housing systems (Ahmed, 2012). Many studies have evaluated the genetics of growth performance of different poultry species estimating the genetic parameters of the growth traits as in chicken (Radwan et al, 2018 andBerger et al, 2022), quail (Farahat et al, 2018and Sarvari-Kalouti et al, 2023), and ducks (Cyriac et al, 2020and El-Deghadi et al, 2022. However, the available information on pigeon productivity is very scarce as pigeons did not receive the required attention through genetic improvement systems, as well as from the side of care and nutrition.…”

Section: Introductionmentioning

confidence: 99%

Productive Performance of Three Strains of Pigeons (Columba Livia Domestica) Under Egyptian Conditions.

Omar¹,

El-Deen²,

abaza

et al. 2022

EPSJ

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This study was conducted to evaluate the growth performance of three strains of pigeons (the Local Egyptian pigeon, the Zagel pigeon, and the White Myrthes pigeon. A total number of 475 birds from the three strains were used to study live body weight at hatch, 1, 2, 3, and 4 weeks of age, and at sexual maturity, as well as growth rate between 0-1, 1-2, 2-3, 3-4, and 0-4 weeks of age. The results of body weight showed that Zagel and White Myrthes pigeons are superior to Local Egyptian pigeon in hatch weight and body weight at 7 days old then White Myrthes became the heaviest in later ages, while Local Egyptian pigeons was the lightest in all ages. Growth rate recorded the highest values in the first week of age (162-163 g) then decreased gradually to reach the minimum rate between 21 to 28 days old. White Myrthes has significantly faster growth during the whole period of study from hatch to 4 weeks of age (TGR). Estimates of heritability for body weights and growth rate showed moderate heritability expect for growth rate in the third week of age. The estimates ranged from 0.21 to 0.28 and from 0.09 to 0.28, for body weight and growth rate, respectively. Phenotypic correlations among body weight traits and growth rate traits were mostly high and positive which ranged between 0.63 to 0.82 and 0.12 to 0.77, respectively. Genetic correlation between the same traits were positive and ranged between 0.70 to 0.96 for body weight and 0.20 to 0.88 for growth rate. From the current results, White Myrthes strain was superior in most of the studied traits which give the possibility to involve it in future genetic programs for improving pigeon growth traits.

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“…Genetic selection is a powerful method for genetic improvement of quail performance. It could alter some physiological relationships and metabolic processes either in growth (Farahat et al ., 2018) or egg production traits (Abou Khadiga et al ., 2017). Growth pattern varies among individuals due to genetic background (Narinç et al ., 2010 b ) and sex (Ojedapo and Amao, 2014).…”

Section: Introductionmentioning

confidence: 99%

Modelling of growth alteration in Japanese quail after a selection experiment for body weight at 4 weeks of age

2018

Self Cite

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The current study investigated the influence of selection for body weight (BW) on growth curve parameters in two lines of Japanese quail through a mixed model approach. Live BWs of 1400 Japanese quail were recorded at 3-day intervals from hatching to 42 days of age. Birds were distributed equally across lines (selected and control) and sexes (male and female). The asymptotic weight parameter (β0) values were always higher in Gompertz than Richards models in both lines. The values of β0 were higher in the selected than control lines and in females than males across models. Differences were found in the inflection point for age and weight across lines and sexes. Values of the growth rate parameter (β2) ranged from 0.06 to 0.10 in both models, favouring males over females in both lines. Lower weights at the inflection point of both models were observed in the control line. Determination coefficient (R2) of both models in different genetic groups and sexes was similar. Mean square error (MSE) values of the Gompertz model were lower for females in selected v. control lines. In contrast, MSE values of the Richards model were lower for selected males v. control males. According to the criteria of choice (highest R2 and lowest MSE, Akaike information criterion and Bayesian information criterion), the Richards model was considered the best fitting model for the growth data of males, while the Gompertz model was the best for growth data of female quails in both lines.

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Alterations in plasma constituents, growth and egg production traits due to selection in three genotypes of Japanese quail

Cited by 5 publications

References 12 publications

Effects of Selection for Fast Growth Rate on Japanese Quail Laying Performance and Fitness Traits

Effects of Selection for Fast Growth Rate on Japanese Quail Laying Performance and Fitness Traits

Productive Performance of Three Strains of Pigeons (Columba Livia Domestica) Under Egyptian Conditions.

Modelling of growth alteration in Japanese quail after a selection experiment for body weight at 4 weeks of age

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