Effect of feeding time on the reproductive performance of Japanese quail (Coturnix coturnix japonica)

Hassan, Sherif; Mady, M. E.; Cartwright, A. L.; Hm, Sabri; Mobarak,

doi:10.1093/ps/82.7.1188

Cited by 9 publications

(17 citation statements)

References 26 publications

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“…These values are close to those observed by Santos et al (2011), who obtained an average fertility of 98.15% in 120-d-old quail breeders. Hassan et al (2003) evaluated quails with approximately 310 days of age and found a fertility value of 72.10%, lower than found herein, even in the treatments with higher age (270 days). Dere et al (2009) reported no fertility differences in eggs from breeders with 90 and 180 days, with values of 82.01% and 81.7%, respectively.…”

Section: Influence Of European Quail Breeders Age On Egg Quality Inccontrasting

confidence: 65%

Influence of european quail breeders age on egg quality, incubation, fertility and progeny performance

Santos

Murakami

Oliveira

et al. 2015

Rev. Bras. Cienc. Avic.

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The influence of age (85, 140, and 270 days) of European quails breeders on the egg quality and hatching, fertility and progeny performance was evaluated. The experimental design was completely randomized in a 3x3 factorial arrangement (females' age x males' age), with ten replicates and six birds per experimental unit (four females and two males). Egg production and quality were determined during 3 periods of 14 days and incubation parameters were evaluated in eggs obtained in five consecutive days. The live performance of the progenies was analyzed until 35 days. There was no effect of male age or any interaction between the age of males and females for the evaluated variable. The female's age influenced egg production, egg weight and chick weight, with better results obtained for 140-d-old breeders. The age of females reduced the hatchability, increased the late mortality in incubated eggs, and had no effect on fertility, total embryo mortality or eggshell structure, when analyzed by electron microscopy. The number of sperm trapped in the outer perivitelline layer (sptz/mm²) was determined in 10 fertile eggs per experimental unit. Young females fertilized by young males (80 days) had reduced sptz/mm². Progeny live performance was not affected by breeder's age. Breeders with 270 days retain fertility; however, their egg production, weight and hatchability of fertilized eggs is reduced. In conclusion, European quail breeders with 140 days of age have better egg quality, hatching and breeding results.

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Section: Influence Of European Quail Breeders Age On Egg Quality Inccontrasting

confidence: 65%

Influence of european quail breeders age on egg quality, incubation, fertility and progeny performance

Santos

Murakami

Oliveira

et al. 2015

Rev. Bras. Cienc. Avic.

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“…Em outro estudo, Santos et al (2011) descreveram uma fertilidade superior para codornas de 120 dias de idade, com média de 98,15%. Já em grupos de matrizes mais velhas, com aproximadamente 310 dias de idade, Hassan et al (2003) encontraram valores de fertilidade de 72,1%, valores inferiores aos encontrados no presente experimento. Na análise da camada perivitelínica de ovos férteis foram observadas concreções minerais.…”

Section: Discussionunclassified

Influência da idade dos reprodutores de codornas de postura na reprodução, na qualidade de ovos e na morfologia dos órgãos genitais

et al. 2014

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ResumoA interação espermatozóide-ovo foi analisada durante a sua vida reprodutiva, em codornas de postura acasaladas com machos de diferentes idades (Coturnix coturnix sp.). O delineamento experimental foi inteiramente casualizado, em esquema fatorial 4 x 4 (idade das fêmeas x idade dos machos de codorna, 80,160,240 e 390 dias), com 10 repetições e 6 aves por unidade experimental, na proporção duas fêmeas para um macho. Foram avaliados variáveis de qualidade e produção de ovos, fertilidade, eclodibilidade e mortalidade embrionária na incubação e desempenho e qualidade dos ovos da progênie nas fêmeas oriundas da incubação. A idade dos machos não apresentou efeito significativo para nenhuma das variáveis estudadas. A idade das fêmeas teve efeito significativo para postura das matrizes, efeito quadrático (P<0,05) do número de espermatozóides/mm 2 da camada perivitelínica sobre o disco germinativo, em função da idade das fêmeas, com redução desse número ao longo da idade. A idade das fêmeas não teve efeito no peso do ovo, na espessura da casca, na percentagem de casca e de gema e na unidade Haugh. Já para a porcentagem de postura, houve efeito quadrático. As variáveis de incubação avaliadas de peso do pintainho, fertilidade, eclodibilidade e mortalidade, não apresentaram diferença quando analisados em relação à idade dos machos e fêmeas, assim como a qualidade dos ovos e desempenho da progênie resultante. A morfometria dos órgãos genitais de machos e fêmeas não apresentou diferença em função da idade das aves. Machos e fêmeas de codornas de postura mantêm habilidade reprodutiva até 56 semanas. A idade dos machos não exerceu efeito sobre os parâmetros reprodutivos e a utilização de machos mais jovens com fêmeas mais velhas não resultou em melhoras reprodutivas. Palavras-chave: Camada perivitelínica, fertilidade, eclodibilidade, oviduto, testículo AbstractThe sperm-egg interaction was investigated during their reproductive life, in laying quails mated with males of different ages (Coturnix coturnix sp.). The experimental design was completely randomized in factorial scheme 4 x 4 (age of the females of age x male quail, 80,160,240 and 390 days), with 10 replicates and six birds each, in proportion to two females for a male. The results showed that there was a quadratic effect (P <0.05) the amount of sperm trapped in the vitelline membrane of the germinal disc, depending on the age of the females, with a reduction of this number over the old. The age of the

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“…The development of quail culture has led farmers to rear both meatand egg-type quail breeders, which has demanded studies on the reproductive management of this species. General data on the ideal male-to-female ratios, hatching egg storage time, correlation between egg weight and fertility rate, hatchability (Bacon & Nestor, 1975;Narahari et al, 1988;Kobayashi et al, 1994;Adkins-Regan, 1995;Petek et al, 2003;Hassan et al, 2003), and fertility duration (Sittman & Abplanalp, 1965;Reddish et al, 1996) have been described for egg-type quails.…”

Section: Introductionmentioning

confidence: 99%

Production and reproduction of egg- and meat-type quails reared in different group sizes

Santos

Murakami

Fanhani

et al. 2011

Rev. Bras. Cienc. Avic.

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Egg- and meat-type quails were reared in groups of different sizes with a fixed female-to-male ratio of 2 to 1 and an area of 158 cm² per bird. The aim was to investigate the influence of group size on quail production and reproductive variables. To this end, 360 quails (180 meat and 180 egg-type quails) were assigned in a completely randomized experimental design to one of three treatments with ten replicates each. The treatments consisted of groups with nine, six, or three quails per cage. Birds were observed for three cycles of 14 days. Daily feed intake and feed conversion ratio were influenced (p < 0.05) by group size in both types of quails. Quail type influenced (p < 0.05) daily feed intake, feed conversion, and egg weight due to the typical differences between meat and egg-type birds. Despite the observed differences in production parameters, the mean values observed were typical of meat- and egg-type quails. The number of hydrolysis points (holes) per mm² on the vitelline membrane on the germinal disc area was higher in meat quails (2.89 ± 0.21) than in egg quails (2.15 ± 0.13). This parameter was not influenced by the number of birds per cage, which suggests that the number of males inside the cage did not modify the spermatozoa pool inside the female oviduct. We concluded that a ratio of two females per male in cages with three, six, and nine birds/cage is recommended, as no deleterious effect on quail reproduction was observed

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Effect of feeding time on the reproductive performance of Japanese quail (Coturnix coturnix japonica)

Cited by 9 publications

References 26 publications

Influence of european quail breeders age on egg quality, incubation, fertility and progeny performance

Influence of european quail breeders age on egg quality, incubation, fertility and progeny performance

Influência da idade dos reprodutores de codornas de postura na reprodução, na qualidade de ovos e na morfologia dos órgãos genitais

Production and reproduction of egg- and meat-type quails reared in different group sizes

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