Effects of Stocking Density on the Performance Characteristics, Egg Quality, and Nutrient Composition of the Eggs of Japanese Quails (Coturnix Coturnix Japonica)

Abstract

Purpose: The aim is to study the effects of stocking density on the performance characteristics, egg quality, and nutrient composition of the eggs of Japanese quails (Coturnix coturnix japonica). Study Design: Completely Randomized Design (CRD). Subjects and Methods: Two hundred and ninety-six (296) day-old sexed Japanese quails assigned to four different stocking densities (treatments) with four replicates conducted in the rainy season. The groups (I to IV) contained 11, 16, 21, and 26 quails in the approximate sex ratio of 1:1 (male: female) with stock densities 252.20 cm2, 173.43 cm2, 132.10 cm2, and 106.73 cm2/quail respectively. Standard procedures were adopted in data generation, collation and analyses. Results: The results showed significant differences (p < 0.05) in weight gain, hen-day production, hen-housed production, total egg /hen, external and internal egg parameters across the treatments. The lowest feed conversion ratio (FCR) of 2.38 % and lowest mortality (2.27 %) were obtained from group one and compared with those in groups two and three. The highest mortality rate was observed in group IV (12.50 %). The proximate analysis and mineral composition of the eggs recorded the highest values from group I which was also compared with the rest of the groups. Conclusion: It was concluded that 173.43 cm2 and 132.10 cm2/quail bird compared well with the standard (252.20 cm2/quail bird) and hence could still be adopted in quail farming without compromising their welfare and performance.

Addition of S-servicia Dry Yeast at Different Densities and its Effect in Some Productive Traits of Quail

“…were in agreement with the results of (Al-Hamed, 2020), (Al-Hamed, 2021), (Aro et al, 2021) and (Al-Tammee, 2019).…”

“…The weight of birds in the seventh week was (275.57, 274.94 and 251.53) grams respectively and this could be due to the increase in the amount of feed consumed by the birds for the same two treatments, as shown in Table 3, because of the competitive behavior of the quail birds. These results were in agreement with the results of (Al-Tammee, 2019; Bolacali and Irak, 2017) and in disagreement with the results of (Cengiz et al, 2015) and Aro et al (2021) found that density of breeding had no significant effect on the body weight.…”

“…It was also observed that there was a decrease in the total quantity of feed consumed as the values were (358.20, 358.84, 355.27 and 366.07) grams respectively. This result was in agreement with Alagawany et al (2021) and Aro et al (2021), but they were in disagreement with Yusuf et al (2015) and Sharif et al (2018). From the other hand, Al-Flaih (2019) did not find an effect on this characteristic when yeast was added.…”

“…Density of breeding is regarded as one of the stresses that can affect the internal environment of the birds, which is reflected in the production (Al-Hamed, 2021;Aro et al, 2021). This is considered a managerial problem and therefore the objective of this study is to find a nutrition management technique that is used to eliminate the density stress via enhancing the growth and increasing the birds' immunity level using yeast with different levels of identify its effect on ameliorating burden that results from the stress of breeding.…”

Effect of Cage Stocking Density and Dietary Nutrient Density on Productive Performance, Egg Quality and Blood Parameters of Japanese Quail

“…Recently, Bourdon et al (2021) evaluated the effects of four SD for laying Japanese quails and found that different SD did not affect performance and eggshell quality of laying quails, and suggested that the best SD is 102 cm 2 /quail. Also, Aro et al (2021) evaluated the effects of four stocking densities on the performance and egg quality of Japanese quails and stated that Japanese quails kept at 173.43 or 132.10 cm 2 /bird performed well as did those kept at the standard SD (252.20 cm2/quail bird) and hence could still be adopted in quail farming without compromising their welfare and performance. More recently El Sabry et al (2022) stated that taking the economicswelfare balance into account the optimal range of SD for laying quails is 200-230 cm 2 /bird.…”