The effects of different photoperiod regimes on growth, feed conversion rate and survival of rainbow trout (Oncorhynchus mykiss) fry
Yazarlar (6)
Doç. Dr. Adem Yavuz SÖNMEZ Atatürk Üniversitesi, Türkiye
Olcay Hisar
Atatürk Üniversitesi, Türkiye
Atatürk Üniversitesi, Türkiye
Sukriye Aras Hisar
Atatürk Üniversitesi, Türkiye
Atatürk Üniversitesi, Türkiye
Prof. Dr. Gonca Alak Atatürk Üniversitesi, Türkiye
Mehmet Sitki Aras
Atatürk Üniversitesi, Türkiye
Atatürk Üniversitesi, Türkiye
Prof. Dr. Telat Yanik Atatürk Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Journal of Animal and Veterinary Advances (Q4) | ||
| Dergi ISSN | 1680-5593 | ||
| Dergi Tarandığı Indeksler | |||
| Makale Dili | İngilizce | Basım Tarihi | 07-2009 |
| Cilt / Sayı / Sayfa | 8 / 4 / 760–763 | DOI | – |
| UAK Araştırma Alanları |
Ziraat, Orman ve Su Ürünleri
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| Özet |
| The effects of 4 different scotophase, the dark phase of photoperiods, LD8:16 (8 h light:16 h dark), LDl2:12(12 h light: 12 h dark), LD16:8(16 h light: 8 h dark) and LD24:0 (24 h light: 0 h dark) on growth, feed conversion and survival rate of rainbow trout, Oncorhynchus mykiss fry with 2 g initial weight were investigated. The fry exhibited better growth and feed utilization in longer light periods but differences appeared only after 60 days of exposure time. The highest growth rate and lowest feed conversion ratio were recorded in LDl6:8 groups. In addition, growth and feed conversion ratio in the fry exposed to LDl 2:12, LDl6:8 and LD24:0 photoperiods were statistically better than that of LD8:16 photoperiod (p<0.05). There was no significant photoperiod effects on the survival rate (p>0.05). Consequently, it can be supposed that growth and feed utilization of rainbow trout fry were improved when cultured in longer light periods. © Medwell Journals, 2009. |
| Anahtar Kelimeler |
| Feed conversion rate | Growth | Oncorhynchus mykiss | Photoperiod | Survival rate |
