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Articles by Turgut Ayg?n
Total Records ( 2 ) for Turgut Ayg?n
  Murat Demirel , Turgut Ayg?n , C?neyt Temur , Ali ?ivi and Muhlis Macit
  This study was carried out to determine the effects of different levels (0 mg, 40 mg, 60 mg and 80 mg / kg concentrate) of salinomycin on growth performance characteristics approximate 8 months of age 39 Karaka? ram lambs. was investigated. The lambs were randomly divided into four groups- a control and 3 treatment groups at the beginning of fattening period. The diet given to the control and treatment groups consisted of concentrate and grass hay. Treatment groups received a diet containing 40, 60 and 80 mg salinomycin / kg concentrate during a 53-day fattening period. The lambs were fed ad-libitum after adaptation period to concentrate feed. But chopped alfalfa hay was fed daily 100 g per lamb in a day during the fattening period for groups. The daily live weight gain and feed conversion efficiency values for control and treatment groups were 361.32, 391.20, 392.45 and 334.91 g; 5.21, 4.86, 4.72 and 5.31, respectively. The ffects of salinomycin levels on fattening performance characteristins of Karakas male lambs were not statistically significant. Supplemental salinomycin decreased (P<0.05) the serum gylcose level in lambs fed diet containing 80 mg salinomycin / kg concentrate. However, 60 and 80 mg supplemental salinomycin increased (P<0.05) serum urea level compared to the control group fed diet without supplemental salinomycin. In conclution, differences among groups in terms of fattening performance characteristics were not found statistically significant, but 40 and 60 mg/kg salinomycin supplementation to diet of Karakas male lambs resulted in numerically improvement in feed conversion efficiency and daily weight gain values.
  Murat Demirel , ?mer Faruk Kurbal , Turgut Ayg?n , Sibel Erdo?an , Yunus Bakici , Ayhan Yilmaz and Hasan ?lker
  A study was conducted with 80 Karaka ewes and their lambs to investigate the effects of various feeding levels during mating period on the reproductive performance. Group 1 (control) was grazed only on pasture and Group 2, 3 and 4 were supplied with 200, 300, 600 g/head/day rolled barley, respectively, in addition to pasture. Supplementary feeding was initiated three weeks before mating and lasted for six weeks. There were increases (P<0.01) in live weights in Karaka ewes in response to supplementary feeding during feeding period. While supplementary feeding reduced infertility rate (P<0.05), this treatment did not affect other reproductive traits. The effects of sex, birth type and birth weight of ewe on the lamb birth weight were significant (P<0.01). Birth type affected weaning weight, daily live weight gain and survivability at weaning (P<0.05). It was concluded that supplementary feeding in addition to pasture could be utilized to improve reproductive efficiency of Karaka ewes, however, more detailed studies should be carried out to determine the appropriate supplementary feeding regimen and supplementary feeding period during mating period for this breed in regional conditions.
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