Influence of stocking density and layer age on production traits and egg quality in Japanese quail

Nagarajan, S.; Narahari, D.; Jayaprasad, I. Alfred; Thyagarajan, D.

doi:10.1080/00071669108417347

Cited by 34 publications

(24 citation statements)

References 4 publications

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“…Kondaiah et al (1983), Singh andPanda (1986) Upward trend of yolk index with age was also observed by Narayanankutty et al (1989) and Nagarajan et al (1991 ), but it differed from those found by Sachdev et al (1989). The (Richard, 1970) with reduced intake of dietary calcium and lowered carbonic anhydrase activity in the shell gland have also been observed.…”

Section: Discussioncontrasting

confidence: 41%

Influence of age on physical traits of Japanese quail (Coturnix coturnix japonica) eggs

González¹

1995

Ann. Zootech.

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Section: Discussioncontrasting

confidence: 41%

Influence of age on physical traits of Japanese quail (Coturnix coturnix japonica) eggs

González¹

1995

Ann. Zootech.

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“…Kakimoto et al [29] and Bovera et al [30] enhances these finding, they concluded that, external and internal quality of egg remains unaffected by group size in laying hens. Nagarajan et al [10] reported that shell thickness was influenced neither by age of the hen nor by stocking density, and the yolk index was superior in the lowest stocking density group. Bandyopadhyay and Ahuja [31] added that cage density significantly affected albumen index, yolk index and internal egg quality, but not egg weight, shape index or shell thickness.…”

Section: Discussionmentioning

confidence: 99%

“…The economical importance of stocking density comes from its depressive effect on gain per bird housed and too small profit margins as poultry industry depends on intensive production [10] . Therefore, the objectives of the present investigation were to evaluate the effects of cage density on external and internal egg quality traits and to measure the phenotypic correlation coefficients between external and internal egg quality traits.…”

Section: Introductionmentioning

confidence: 99%

Bıldırcınlarda Kafes Yoğunluğunun Yumurta kalitesi Üzerine Etkileri

Abdel-Hamid¹,

Mohammed²

2015

Kafkas Univ Vet Fak Derg

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“…But, the egg weight was found lower than those of reported by Tebesi et al [28] ; Dudusola [29] ; GALİÇ, KARABAĞ Nowaczewski et al [30] ; Song et al [31] whereas was found higher than those reported by Obike et al [32] . The difference between the egg weights reported in the various studies, it might be due to variations in strain, stocking density, seasonal factors, feeding system and age of birds Nagarajan et al [33] ; Tanabe and Ogawa [34] . Generally eggs of birds have oval shape with small differences among the species.…”

Section: Discussionmentioning

confidence: 99%

Determination of Phenotypic Correlations Between Internal and External Quality Traits of Guinea Fowl Eggs

Alkan¹,

Karslı²,

Galiç³

et al. 2013

Kafkas Univ Vet Fak Derg

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Values of egg weight, egg length, egg width, eggshape index, eggshell weight, eggshell ratio, eggshell thickness, eggshell surface area, unit surface area and egg volume were determined as 40.14 g, 49.47 mm, 37.89 mm, 0.76%, 6.48 g, 16%, 0.54 mm, 65.69 cm 2 , 0.11 g/cm 2 and 38.21 cm 3 , respectively. In addition, values of yolk weight, yolk height, yolk width, yolk index, yolk ratio, albumen height, albumen width, albumen length, albumen weight, albumen index, yolk/albumen ratio and haugh unit were found as 13.58 g, 14.99 mm, 40.64 mm, 37%, 33%, 4.77 mm, 62.97 mm, 80.07 mm, 21.62 g, 6.7%, 68% and 74.97%, respectively. According to the results determined in this study, all most all external quality traits of the egg were changed at the significant levels depending on the change occurred in the egg weight. The results indicated that egg weight influences external egg quality traits of quinea fowl. The positive correlations obtained among the egg quality traits indicated that they can be improved phenotypically through selection. Keywords: Guinea fowl, Egg weight, Egg quality, Phenotypic correlation Beç Tavuğu Yumurtalarında İç ve Dış Kalite Özellikleri Arasındaki Fenotipik Korelasyonların Belirlenmesi ÖzetBu çalışmada Beç tavuğu yumurtalarında iç ve dış kalite özellikleri ile bu özellikler arasındaki fenotipik korelasyonların belirlenmesi amaçlanmıştır. Bu amaçla toplam 100 adet Beç tavuğu yumurtası kullanılmıştır. Araştırma Akdeniz Üniversitesi Ziraat Fakültesi Zootekni Bölümü Hayvancılık Birimi'inde yürütülmüştür. Yumurta ağırlığı, yumurta uzunluğu, yumurta eni, şekil indeksi, kabuk ağırlığı, kabuk oranı, kabuk kalınlığı, kabuk yüzey alanı, birim yüzey alanı ve yumurta hacmi sırasıyla 40.14 g, 49.47 mm, 37.89 mm, %0.76, 6.48 g, %16, 0.54 mm, 65.69 cm 2 , 0.11 g/cm 2 ve 38.21 cm 3 olarak bulunmuştur. Ayrıca, sarı ağırlığı, sarı yüksekliği, sarı genişliği, sarı indeksi, sarı oranı, ak yüksekliği, ak genişliği, ak uzunluğu, ak ağırlığı, ak indeksi, sarı/ak oranı ve haugh birimi de sırasıyla 13.58 g, 14.99 mm, 40.64 mm, %37, %33, 4.77 mm, 62.97 mm, 80.07 mm, 21.62 g, %6.7, %68 ve %74.97 olarak hesaplanmıştır. Yumurta ağırlığındaki değişmeye bağlı olarak yumurtanın dış kalite özellikleri önemli derecede değişmiş ve yumurta ağırlığı dış kalite özelliklerini etkilemiştir. Yumurta kalite özellikleri arasında ortaya çıkan önemli korelasyonlar bu özelliklerin fenotipik olarak seleksiyonla iyileştirilebileceğini göstermiştir.

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Influence of stocking density and layer age on production traits and egg quality in Japanese quail

Cited by 34 publications

References 4 publications

Influence of age on physical traits of Japanese quail (Coturnix coturnix japonica) eggs

Influence of age on physical traits of Japanese quail (Coturnix coturnix japonica) eggs

Bıldırcınlarda Kafes Yoğunluğunun Yumurta kalitesi Üzerine Etkileri

Determination of Phenotypic Correlations Between Internal and External Quality Traits of Guinea Fowl Eggs

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