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    Effect of dietary supplementation of jujube fruit (Ziziphus jujuba) powder on performance, some biochemical parameters, and egg quality in quails (Coturnix coturnix japonica)
    (Polska Akad Nauk, Polish Acad Sciences, Univ Warmia & Mazury Olsztyn, 2024) Eroglu, M.; Ciftci, M.; Simsek, U. G.; Akarsu, S.; Arslan, S.; Hames, M. A.; Mutlu, M.
    This study aimed to evaluate the effects of different dietary supplementation levels with jujube fruit powder on the performance, biochemical parameters, and egg quality characteristics of laying quails. A total of 60 quails (45 days old) were randomly assigned to treatments with different levels of jujube fruit powder: a basal diet (control) and diets supplemented with 5 g/kg (T1), 10 g/kg (T2), with five replicates per treatment (20 quails/treatment and four quails/replicate). The differences between 1-15 and 16-30 days for feed intake (p<0.05), 1-60 days for egg production (p<0.05), 16-30 days for egg weight (p<0.05), and 1-15 and 1-60 days for feed conversion ratio were statistically significant. The highest values for egg width (p<0.01) and egg length (p<0.05) were found in the control group (25.87 and 33.55 mm), while lower values were observed in the T1 and T2 groups. There was no statistical difference between the groups in egg shape index, shell weight, shell ratio, and shell thickness (p>0.05). The yolk height (p<0.05) and yolk diameter (p<0.01) were statistically significant. The differences between the groups for all serum biochemical parameters were insignificant (p>0.05). According to the results of this study, jujube fruit, a rich energy source, can be used as an alternative supplement in poultry diets with positive effects on egg production and feed conversion ratio.
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    Effects of Washing Dirty Eggs of Geese with Boric Acid and Vinegar on Hatchability and Microbial Loads
    (Pakistan Agricultural Scientists Forum, 2025-02-22) Eroglu, M; Erisir, Z; Simsek, U. G.; Mutlu, S. Iflazoglu; Baykalir, Y.; Gungoren, A.
    This study aimed to evaluate whether washing dirty goose eggs with tap water, vinegar, and boric acid solutions could improve hatching performance and reduce microbial load. A total of 3,360 eggs were used for hatching performance assessments, while 84 eggs were analyzed for microbiological parameters. The study consisted of seven treatment groups: physically clean eggs (PC), unwashed dirty eggs (NC), eggs washed in tap water (TW), eggs washed with a vinegar solution containing 2% acetic acid (S2), eggs washed with a vinegar solution containing 4% acetic acid (S4), eggs washed with a 2% boric acid solution (B2), and eggs washed with a 4% boric acid solution (B4). Hatchability of set eggs and hatch of fertile eggs improved significantly in the PC, S2, and B2 groups (P<0.01). Embryonic mortality was significantly low in the PC and B2 groups (P<0.05). Significant differences were observed between the groups for total mesophilic aerobic bacteria (TMAB) (P<0.001), total coliforms (TCN) (P<0.01), and Escherichia coli (P<0.01). The lowest TMAB counts were recorded in the S2 and B4 groups, while the lowest TCN counts were observed in the B4 group. Bacterial analysis of egg contents showed that all bacterial groups were below detectable limits. In conclusion, washing dirty goose eggs with tap water, vinegar, or boric acid solutions (2% and 4%) effectively reduced the microbial load on the eggshell for all examined microorganisms and significantly improved hatching parameters compared to dirty eggs.