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Articles by Cetin Firatli
Total Records ( 3 ) for Cetin Firatli
  Gonca Ozmen Ozbakir , Seyrani Koncagul , Sahin Cadirci and Cetin Firatli
  In this study, 38 apiaries along the Southeast border of Turkey with 3 countries were visited and 3340 worker honey bee specimen were collected from 167 colonies. The worker honey bees were collected from populations in Van, Hakkari, Sirnak, Mardin, Sanliurfa, Kilis and Hatay in Turkey; Lattakia, Idlib, Aleppo, Ar-Raqqah and Dayr az-Zawr in Syria; Urmia, Maku and Khoy in Iran, locations along the common border in the Southeast of Turkey. Nine morphological characters measured for each worker bee were: Tongue Length (TL), length of hairs on tergite 5 (HL), Forewing Length (FWL), Forewing Width (FWW), Hind Leg Length (HLL), Cubital Index (CI), longitudinal (T3+T4), Tomentum Index (TI) and Metatarsal Index (MTI). In general, heritability estimates from pooled data ranged from 0.36±0.004 for CI to 0.87±0.003 for FWL from 0.42±0.004 for CI to 0.99±0.003 for FWL and from 0.43±0.004 for CI to 1.03±0.003 for FWL when effective number of matings that a virgin queen made changed from 7, 13 or 17, respectively.
  Amir Naji Khoei , Cetin Firatli and Pedram Golamzade
  In Iran honey bees cannot be kept without chemical treatments against Varroa destructor. The rich variety of native honeybee subspecies and ecotypes in Iran offers a good genetic resource for selection towards Varroa resistance. There are some examples of mite resistance that have developed because of natural selection in wild and managed Iranian populations. Researchers tested five commercial sources of honey bees, Apis mellifera meda in East Azarbaijan Province of Iran. Colonies from the five sources were measured for VSH and number of the fallen mites on the hive floor. The reduction of mite infestation in brood combs exposed to test colonies for 1 week differed significantly between groups. On average, colonies with natural low-level brood infestation reduced infestation by 26%. A positive correlation (Spearman coefficient) between Number of Fallen Mites per 1000 Bees (NFMB) with percentage of the mites that infested the brood (PMB) (r = 0.442**; p<0.01; n = 50) was found. Results of path analysis showed 53 and 14% of variation (standard deviation) in NFMB are because of percentage of the mites in phoretic phase (PMP) and PMB variables, respectively. This diversity offers rich potential genetic resources for selection on mite resistance.
  H. Vasfi Gencer , S. Qasim Shah and Cetin Firatli
  The research was carried out at the apiary of the Dept. of Animal Science, Faculty of Agriculture, Ankara University. Twelve rearing colonies were assigned to 4 feeding groups of syrup, syrup with pollen and syrup with vitamin mixture and control group on natural sources. Another colony was prepared as breeder to take grafting material. The effects of supplemental feeding and the age of larva on the acceptance rate and queen qualities were measured. In addition, the reproductive performances of light and heavy weight resultant queens were observed. It was found that supplemental feeding of rearing colonies improves the acceptance rate of grafted larvae (p<0.05). Larval age did not affect the acceptance rate. On the other hand, 2-day-old larvae were more readily accepted (82.3±2.16%) than 1-day-old larvae (73.4±4.56%). The live weights of queens after emergence were not influenced of feeding, whereas the queens reared from 1-day-old larvae (166.6±1.74 mg) were significantly (p<0.01) heavier than those from 2-day-old larvae (160.8±1.22 mg). The length and volume of queen cells were measured after emergence and found affected by feeding (p<0.01 and p<0.05) and larval age (p<0.05 and p<0.01), respectively. The reproductive performances of light and heavy weight queens were observed in colonies throughout the production season. The heavy weight queens produced more brood area (945±114.0 cm2) than the light weight queens (709±93.1 cm2). The difference between the averages of queen weight groups was significant (p<0.05). The heavy weight queens also built up larger colonies. The periodic changes both in brood areas and the numbers of combs covered with bees were significant (p<0.01).
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