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Abstract This study was carried out at Mit Ghamr city, Dakahliya Governorate and El-Amar region Qaliubiya Governorate. This work was conducted during two successive years (2010-2011) to discuss some morphological and physiological characteristics and the productivity of Italian strain (Apis mellifera ligostica) isolated in Suez and Carniolan strain (Apis mellifera carnica) isolated in Manzala and there first hybrids to see the best of these strains and hybrids as shown below: 1. Biometrical characters and measurements: 1.1. Biometrical characters of virgin queens: 1.1.1. Queen weight measurements: The results indicated that, the Italian queen had the heaviest body weight (176.6mg) followed by F1 Italian (161.2mg), then Carniolan (159.3mg), whereas the F1 Carniolan queen had the lightest body weight (159.0mg). There were significant differences between Italian strain and the others. While, there were no significant differences among Carniolan, F1 Carniolan and F1 Italian. 1.1.2. Length of right forewing: Data indicated that, the Italian queen had the longest forewing (10.274mm) followed by F1 Italian (10.184mm), then F1 Carniolan (10.042mm), while the Carniolan queens had the shortest forewing (10.038mm). There were no significant differences between F1 Italian and the others. There were significant differences between the Italian and each of Carniolan and F1 Carniolan. 1.1.3. Width of right forewing: Results indicated that, the Italian queen had the widest forewing (3.456mm) followed by F1 Italian (3.376mm), then F1 Carniolan (3.331mm), while the Carniolan queen had the narrowest forewing (3.313mm). There were no significant differences between F1 Italian and the 100 Summary others. While there were significant differences between the Italian and each of Carniolan and F1 Carniolan. 1.1.4. Right ovary weight: Data indicated that, the Carniolan queen had the heaviest right ovary followed (3.978mg) followed by Italian (3.928mg), then F1 Carniolan (3.808mg), while the F1 Italian queen had the lightest right ovary (3.733mg), with no significant differences between them. 1.1.5. Number of right ovarioles: Results indicated that, the Italian queen with highly significant possessed the highest number of right ovarioles (157.4) followed by F1 Italian (146.6), then Carniolan (142.3), while the F1 Carniolan possessed the lowest number of right ovarioles (125.6). There were highly significant differences between Italian and the others. While, there was no significant difference between the F1 Italian and Carniolan. 1.1.6. Correlation and regression among virgin queen characters: Data specified that, Positive correlation coefficients calculated among length, width of forewing and queen weight, also between length and width of forewing, and between length of forewing and number of right ovarioles. 1.2. biometrical characters of worker bees: 1.2.1. Length of Proboscis: Data cleared that, the F1 Italian worker possessed the longest Proboscis (6.517mm) followed by Italian (6.502mm), while the F1 Carniolan and Carniolan were the shortest with the same proboscis length (6.267mm). There were highly significant differences between F1 Italian and both of Carniolan and F1 Carniolan, while there was no significant difference between Italian and F1 Italian. 1.2.2. Length of right forewing: The results cleared that, the Italian worker forewing was the longest one (9.959mm) followed by F1 Italian (9.5mm), then F1 Carniolan 101 Summary (9.321mm), while the Carniolan worker forewing was the shortest one (9.309). There were highly significant differences between Italian and both of Carniolan, F1 Carniolan, also there was significant difference between Italian and F1 Italian, while there was no significant difference between Carniolan and F1 Carniolan. |