This study aimed to reveal phenotypic correlations of some internal and external egg quality traits between egg white (albumen) pH and ovalbumin levels in four different varieties of Japanese quail. A total of 480 eggs were used belong to gray, white, golden and black plumage color Japanese quail obtained from a commercial quail breeding company. Each group consisted of 120 eggs collected from the birds which were same age. After determined the external traits, all eggs were broken, albumen and yolk separated and internal traits were examined. Albumen pH was measured after the separation process. SDS-PAGE was applied for determining the ovalbumin level. A positive correlation was observed between egg weight and albumen (0.838) and yolk weight (0.599). There was a negative correlation determined between egg weight and albumen pH (-0.431). The percentage of yolk and albumen pH had a moderately significant positive correlation (0.350). We observed significant correlation between yolk color and albumen pH as well as between genotype of birds (P<0.01). The ovalbumin level high positively correlated with only the birds' genotype (0.814). Black plumage color (67.69%) had the highest ovalbumin level amongst golden (64.76%), white (49.28%) and gray (46.84%) plumage colors, respectively. The novel data is presented in this study about ovalbumin level comparing in four varieties of Japanese quail. The ovalbumin level is not affected by any quality features except for the genotype. The studies need to be conducted under different storage conditions for revealing more accurate phenotypic correlations between egg quality traits and albumen pH.
The aim of this study was to evaluate some biochemical variables under heat-stressed Japanese quail that have different plumage colors for detecting that variety of quail better adapted to heat stress. A total of 100 birds were used in this study. The 25 birds that belong to each four plumage color group were placed in 5-tiered including 3 compartments in each tier plastic cages with subdivided 5 repetitions according to their initial body weights. The statistical significance occurred in LDH (P<0.01). The highest LDH level was found in the Recessive white variety (25.43 mmol/L), followed by Wild type (23.78 mmol/L), Golden (12.87 mmol/L), and Tuxedo (12.71 mmol/L), respectively. The Recessive white group was different from the Golden and Tuxedo groups. According to the results of the current study, there was no significant difference was observed between the four different color varieties of Japanese quail regarding heat stress. However, when LDH is taken into account, it can be thought that the white color may be more sensitive to stress. In order to clarify exactly this situation, more studies that are detailed such as yield performance can be conducted on different quail species.
The aim of this study is to investigate the effects of adding different doses of boric acid (H3BO3) to the mixed feed of Japanese quail (Coturnix coturnix Japonica) on fattening performance, carcass and bone properties. For this purpose, a total of 96 quails aged 15 days were balanced according to their live weight and sex, and 4 trials were randomly divided into groups. Each group is composed of 4 repetitions. Trial groups; the control group (C) given mixed feed, the group with 100 mg / kg boric acid (BA) added to the feed BA100; 300 mg / kg boric acid was added to the feed group BA300 and 500 mg / kg boric acid added to the feed group BA500. Data for the fattening period were followed for 15-43 days. At the end of the experiment, carcass and bone characteristics of 8 quails (two quails from each repeat) from each group were examined. The live weight and live weight gain of the quail was similar among the experimental groups (P>0.05). Adding boric acid to feed did not affect feed consumption and feed utilization rate (P>0.05). While the breast rate decreased significantly due to the increasing levels of boric acid addition (P<0.01), an increase in the back and neck ratio was detected (P <0.05). The highest thigh ratio was found in BA300 and BA500 groups (P<0.05). Carcass yield, wing and liver rates were similar between the groups (P>0.05). Tibia and femur weights and dimensions were not affected by the addition of boric acid (P>0.05). The highest femoral ash level was determined in the BA300 group (P=0.05). The tibia ash level increased from the Control group towards BA300 and was the lowest in the BA500 group (P<0.05). As a result, while the addition of boric acid to the feed cannot be affected to the fattening performance of quail, its effect on carcass and bone properties has been found significant.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.