ABSTRACT:This study was conducted to investigate the effects of garlic powder on the performance, egg traits, egg cholesterol and serum parameters of laying Japanese quails. One hundred and twenty 10-weeks-old quails were allocated to four dietary treatments. Quails were caged individually and fed diets supplemented with 0 (control), 1, 2, 4% garlic powder for 12 weeks. There were significant (P < 0.05) differences among the diets in feed consumption, feed efficiency and egg production as averaged over 12 weeks. The better values for these parameters were obtained from the 1% garlic powder supplemented group. Garlic powder addition did not significantly affect egg yolk index, egg shell weight and egg shell thickness. However, there were significant differences (P < 0.05) in egg albumen index, egg shell index and Haugh unit. There was a significant (P < 0.05) reduction in the egg yolk cholesterol concentration when the dietary level of garlic powder was increased from 0 to 4 g/kg. Plasma high density lipoprotein (HDL) cholesterol concentrations increased (P < 0.05) with increasing levels of dietary garlic powder. Plasma cholesterol (P < 0.05) and triglyceride (P < 0.05) concentration decreased with garlic powder supplementation. It was concluded that garlic powder in the diet of laying quails reduced the plasma and egg yolk cholesterol concentration.

We report the effects of time of storage, temperature, and supplementation with sodium selenite- and selenium-enriched yeast on the quality of quail eggs. For this study, 90 10-week-old female Japanese quails (Coturnix coturnix japonica) with similar body size were caged individually and randomly divided into five groups of 18 quails each. One group was fed a normal diet and served as control. A second group was supplemented with 0.2 mg/kg sodium selenite (In-Se) and three groups supplemented with 0.1, 0.2, and 0.3 mg/kg of a commercially available selenium-enriched yeast (O-Se1, O-Se2, and O-Se3, respectively). The eggs were collected at third and fourth weeks of the experiment and were stored at 4°C and 20°C for 0, 15, 30, and 45 days. Extension of the storage time to 45 days at 20°C resulted in significant deterioration of egg quality. The albumen Haugh unit (HU), pH, albumen index, yolk index, and egg weight loss were the most important parameters influenced by the nature of the selenium sources, storage time, and temperature. Storage time and temperature were also significant for egg weight loss, HU, and albumen and yolk indexes. The results show that supplementation with selenium yeast significantly affected shell weight, shell thickness, HU, albumen index, yolk index, and pH. The HU decreased with increased storage time and temperature. Higher levels of Se-yeast administration resulted in greater HU compared to the selenite and control groups.

No abstract

Bu çalışma, yumurtacı Japon bıldırcınlarının karma yemlerine organik ve inorganik selenyum (Se) katkısının yumurta verim parametreleri ile yumurta akı ve sarısının Se içeriğine etkilerini belirlemek amacıyla yapılmıştır. Denemede 10 haftalık yaşta 90 adet yumurtacı Japon bıldırcını (Coturnix coturnix Japonica) kullanılmıştır. Bıldırcınlar her birinde 18 hayvan bulunan 5 gruba ayrılmış ve tüm hayvanlar bireysel kafeslerde barındırılmıştır. Gruplardan biri Se katkısız bazal yemle (kontrol), ikinci grup bazal yeme + 0.2 mg/kg inorganik Se (sodyum selenit) ilaveli yemle, üç, dört ve beşinci gruplar bazal yeme sırasıyla 0.1, 0.2 ve 0.3 mg/kg organik Se ilaveli yemlerle 8 hafta süreyle beslenmişlerdir. Araştırma sonucunda, deneme sonu canlı ağırlığı, yem tüketimi, yemden yararlanma oranı, yumurta verimi ve yumurta ağırlığı bakımından gruplar arasında önemli bir farklılık olmadığı, ancak yumurta sarısı ve akındaki Se konsantrasyonunun inorganik ve organik Se ilave edilen gruplarda kontrole göre önemli derecede yüksek olduğu (P<0.001), organik Se ilavesinin inorganik Se ilavesine göre daha etkili olduğu tespit edilmiştir.

No abstract

-This study was performed to determine the effect of shell colour in eggs acquired from Ross-308 broiler breeders on the interior and exterior quality of the egg, the antibody content of the egg yolk, and growth performance. The shell colours of a total of 1350 eggs were classified, using a colorimeter, into three groups: dark (E<64), medium (E:64.00-67.00), and light (E>67). The difference between groups with respect to egg weight, shape index, shell weight, and Haugh unit value was significant. Egg yolk antibody content (IgY) was 6.658 mg/mL in the dark colour group, 5.130 mg/mL in the medium colour group, and 5.242 mg/mL in the light colour group. Among incubation characteristics, the fertility rate as, in order, 94.66%, 92.14%, and 87.92% in dark, medium, and light shell colour eggs, and the hatchability was 87.00%, 84.28%, and 80.57%, in the same order. No significant difference was observed between groups with respect to hatchability of fertile eggs and embryonic mortality rates. No significant difference was observed between groups for live weight, feed intake, and feed conversion ratio either. The eggshell colour has an effect on yolk antibody content and on the hatchability, but it has no influence on hatchability of fertile eggs, Haugh unit and growth performance.

This experiment was conducted to investigate the effects of different selection methods of parent lines on the body weight of Japanese quails. For this purpose, line M 55 was subjected to individual selection for body weight at 5 weeks of age, while a reciprocal recurrent selection method was applied to lines R 33 and S 55 . Selection lasted two generations. Body weight changes, age and weight at sexual maturity, egg weight, and egg production were investigated in the parent generations as well as in the selection lines. Body weight at 5 weeks of age of the parents of the M 55 , R 33 and S 55 lines were 299.0, 285.3, and 280.4 g in the first generation, and 314.8, 316.6, and 306.8±3.11 g in the second generation, respectively. The first generation of the M 55, R 33 , and S 55 lines presented egg production rates of 73.4, 77.6, and 75.8%, respectively, and egg weights of 12.7, 11.9, and 12.1g, respectively. The second generation of the M 55, R 33 , and S 55 lines presented egg production rates of 74.6, 77.8, and 78.3%, and egg weights of 12.72, 12.59, and 12.56 g, respectively. Both egg production and egg weights were significantly different between the first and the second generations (p>0.05). As a result, despite significant increase in body weight of the selection lines, no significant differences in egg production or egg weight were determined among generations. However, reciprocal selection lines of both generations presented higher egg yield than the individual selected line.

No abstract