The effect of different body weight categories on plasma macromineral levels in four close-bred flocks of adult Japanese quails (Coturnix coturnix japonica)

Jatoi, A. S.; Sahota, A. W.; Akram, Muhammad Nadeem; Javed, Khalid; Jaspal, Muhammad Hayat; Hussain, Jibran; Mehmood, Shahid; Abbas, Yassar; Mirani, A. H.; Ishaq, Hafiz Muhammad

doi:10.3906/vet-1304-51

Cited by 31 publications

(41 citation statements)

References 11 publications

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“…Egg Weight: Data presented in Table 10 showed that there were no significant effect for two housing systems on egg weight (gm) of Japanese quail . Our results regarding egg weight in the two different housing systems were comparable to (Jatoi et al 2013) . The observed difference between our findings and that of others may be attributed to several mechanisms including increased feed intake .…”

Section: Effect Of Housing System On Egg Quality (Eq) Traitssupporting

confidence: 77%

Effect of Housing System on Japanese Quail Performance

Badawi¹

2017

Journal of Animal and Poultry Production

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This study was conducted to investigate the effect of two different housing systems; floor pens vs. battery cages on productive traits in Japanese quail. Three hundred, one day old chicks were individually weighed and randomly divided into two equal experimental groups according to housing system (150 birds in each group), each group was randomly assigned to three replicates. Body weight, body weight gain, feed consumption, feed conversion ratio and mortality rates were recorded weekly during the first experimental period. At the end of the growing period slaughter test was carried out to estimate carcass quality characteristics. Feed intake , feed conversion ratio and mortality rates were recorded. The dressed carcass, heart, liver, head and gizzard were weighed. The pooled weight of heart, liver, gizzard, and edible meat were designated as total edible meat (TEM). Using floor pens improved Gizzard weight, and gizzard percentage values compared to battery cages. Egg production, and egg quality traits, were estimated during the second experimental period. It was concluded that housing system had no significant effect on productive most traits of Japanese quails. Using floor pens improved gizzard weight, gizzard percentage, egg yolk weight and egg yolk percentage values of floor pen reared quails compared to battery cages. It was concluded that housing system had no significant effect on most of productive traits of Japanese quail

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Section: Effect Of Housing System On Egg Quality (Eq) Traitssupporting

confidence: 77%

Effect of Housing System on Japanese Quail Performance

Badawi¹

2017

Journal of Animal and Poultry Production

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“…However, where the mass of the eggs is concerned, it is observed that only birds classed as very light performed worse in this category. The results for average egg weight show that birds whose body weight was below 127 grams at 35 days of age produced smaller eggs during the laying phase, which contradicts the results obtained by Jatoi et al (2013), which showed that heavier birds produce heavier eggs, both at the beginning and at the end of the productive period.…”

Section: Experiments IIcontrasting

confidence: 55%

“…Feed consumption during the laying period is influenced not only by the body weight but also on account of the bird's genetics and the season of the year (Jatoi et al, 2013;Guimarães et al, 2014). These same authors also prove that the genetics of the quails determine differences not only where the body and egg weights are concerned, but mainly in relation to feed consumption.…”

Section: Experiments IImentioning

confidence: 99%

<b>Productivity of japanese quails in relation to body weight at the end of the rearing phase

Filho

Garcia

Molino

et al. 2016

Acta Sci. Anim. Sci.

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ABSTRACT. Two experiments were conducted at different times with the objective of investigating how the body weight of Japanese quails at the end of the rearing period may alter the performance during the laying phase. In both experiments, the birds were distributed in five treatments according to their body weights, which were obtained at 42 and 35 days of age for the first and second experiments respectively, and the following categories were considered for said experiments: very light, light, average, heavy and very heavy. For both experiments, the treatments were distributed in a randomized block design, at eight repetitions per treatment for the first one and six for the second one, both at 18 birds per repetition. During the first experiment, sexual maturity, laying percentage, marketable egg percentage, average egg weight and egg mass, in second experiment, feed consumption, final body weight, eggs per bird present, laying percentage, average egg weight, egg mass and alimentary conversion were evaluated. The results obtained show that Japanese quails whose body weight is lower than 140 grams at 42 days of age, or lower than 120 grams at 35 days of age show significantly worse productive results during the laying phase.Keywords: body development, egg production, quail production, sexual maturity.Produtividade de codornas japonesas em função do peso corporal ao final da fase de recria RESUMO. Dois experimentos foram conduzidos para investigar como o peso corporal de codornas japonesa ao final do período de recria pode alterar os parâmetros de desempenho durante a fase de postura. Nos dois experimentos as aves foram distribuídas em cinco tratamentos em função do peso corporal, estes foram obtidos aos 42 e aos 35 dias de idade, para o primeiro e segundo experimento respectivamente. Para ambos os experimentos foram consideradas as classes: muito leves, leves, peso médio, pesadas e muito pesadas. Os tratamentos foram distribuídos em delineamento em blocos ao acaso, com oito repetições por tratamento para o primeiro experimento e seis repetições por tratamento para o segundo experimento, ambos com 18 aves por repetição. No primeiro experimento, foram avaliados a maturidade sexual, a porcentagem de postura, a porcentagem de ovos comercializados, o peso médio dos ovos e massa de ovos. No segundo experimento foram avaliados o consumo de ração, o peso corporal final, os ovos por ave presente, a porcentagem de postura, o peso médio dos ovos, massa de ovos e a conversão alimentar. Os resultados mostram que codornas com peso corporal inferior a 140 gramas aos 42 dias de vida, ou inferior a 120 gramas aos 35 dias de vida, pioram significativamente os resultados produtivos durante o período de postura.Palavras-chave: peso corporal, produção de ovos, coturnicultura, maturidade sexual.

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“…Selection over four generations indicated that both the selected genotypes exceeded their CG in EW 14 , EW 20 , EM 14 and EM 20 . The present findings are mostly in agreement with Alkan et al (2013), Saidu et al (2014), Jatoi et al (2015) and Hussain et al (2016), who reported that EW and EM differed significantly for different types, strains and lines of quail. The results of EW agreed with those of several authors who found significant effects of genotype, favouring the selected genotype for EW in Japanese quail (Alkan et al 2010(Alkan et al , 2013Emam 2015).…”

Section: Performance Of the Traitssupporting

confidence: 93%

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

Farahat

Mahmoud

El-Komy³

et al. 2018

J. Agric. Sci.

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The present investigation was carried out to estimate the effects of genotype and sex on growth and laying performance and assess the variations in plasma constituents in the tested genotypes and their relations with productive traits after four generations of selection. Data of growth and laying performance on 1440 females and males of Japanese quail were taken from the three quail genotypes: maternal (MG), long shank length (LSG28) and control (CG) genotypes. Genotype significantly affected all studied growth productive traits, favouring selected genotypes. The LSG28surpassed MG in total protein, albumin (Alb), globulin (Glob), triglycerides and Alb/Glob ratio and lowered both cholesterol and total lipids (TL). Sex significantly favoured females, which had higher body weight, longer shank length at 35 days of age and higher body weight gain during the period from 1 to 35 days of age. Females showed significantly higher concentrations of both Alb and TL than males. The MG exceeded LSG28in fertility and hatchability per cent. Correlations for both growth and productive traits with plasma constituents revealed inconsistent trends in either magnitude or direction. Four generations of selection resulted in substantial phenotypic improvements in most growth and productive traits, as well as plasma constituents studied in LSG28, and favoured MG in maturity, days needed to produce the first ten eggs, higher egg production per cent and heavier egg mass.

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The effect of different body weight categories on plasma macromineral levels in four close-bred flocks of adult Japanese quails (Coturnix coturnix japonica)

Cited by 31 publications

References 11 publications

Effect of Housing System on Japanese Quail Performance

Effect of Housing System on Japanese Quail Performance

<b>Productivity of japanese quails in relation to body weight at the end of the rearing phase

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

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