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The current study was conducted to examine the influences of Sargassam cristafolium, Gracilaria pulvinata, Rhus coriaria, and Punica granatum peel dried powder in two levels (10 and 20gr/kg) of dietary on productive performance and some egg quality characteristics of laying Japanese quail. A total of 675 (49 days old) Japanese quail were randomly distributed into nine groups with three replicates of 25 birds in each. Results showed that egg weight, shell weight, albumen weight and shell thickness were not influenced by treatments. The effects of medicinal plants on weekly egg production differ depending on the dietary medicinal plant type and dosage. Moreover, the birds fed diet supplemented with Sargassum cristaefolium at 10g/kg had greater weekly egg production compared to others. Haugh unit was reduced by diet supplemented with R. coriaria. Diet supplemented with S. cristaefolium at 20 g/kg increased yolk weight. Furthermore, greater albumen protein and thiobarbituric acid content of the tenth day's eggs (TBAd 10 ) were perceived in birds fed diet supplemented with G. pulvinata. In present study, the lowest levels of cholesterol (9.66 mg/g) was determined in the egg yolk of groups R. coriaria and G. pulvinata, and the control group showed to have the most amounts (12.00 mg/g). Based on obtained data, addition of 0.5% and 2% of S. cristafolium, G. pulvinata, R. coriaria, and P. granatum peel to the diet lead to be progress in egg production rate, enhanced the egg quality and egg biochemical properties in Japanese quail.

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Sixteen date palm cultivars were studied for their susceptibility to the date palm dust mite, Oligonychus afrasiaticus, at Date Palm and Tropical Fruit Research Institute of Bushehr, Iran. Physicochemical attributes of these cultivars were also measured at Kimri stage. The results revealed significant differences among cultivars regarding susceptibility to O. afrasiaticus. The cultivars Haleli, Maktoub, Barahi, and Deglet Noor were more resistant to the date palm dust mite than the other cultivars. Significant differences were also observed among cultivars for physicochemical characteristics. Fruit length ranged from 2.18 to 4.15 cm, fruit mid diameter from 1.52 to 2.70 cm, fruit cap diameter from 0.82 to 1.10 cm, pericarp thickness from 1.51 to 6.12 mm, exocarp thickness from 0.24 to 0.54 mm, fruit weight from 4.21 to 17.24 g, kernel weight from 0.23 to 1.47 g, pericarp to kernel weight ratio from 4.45 to 16.67, strand weight from 26.33 to 184.75 g, bunch weight from 1.45 to 10.80 kg, number of strands from 26.33 to 91.33, fruit tissue firmness from 3.08 to 4.76 kg/cm 2 . The percentage of infestation to the mite had a significant positive correlation with the Kernel weight, fruit length, and number of strands. Tannin content ranged from 0.97 to 8.13%, TSS from 10.00 to 70.00% Brix, and titratable acidity from 0.70 to 1.50%. No significant correlation was observed between chemical characteristics of date fruits and infestation to the mite. Such information can be used to screen cultivars of date palm for date fruit processing industries and breeding programs.

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