اثر موسيقي سنتي ايراني بر عملكرد رشد، توليد مثل و رفتار ماهي سيچلايد گورخري (Cichlasoma nigrofasciatum)

مطالعات دامنه داري درباره موسيقي در حوزه مسايل روان شناسي و رفتاري انسان صورت گرفته است (Snyder and Chan, 1999)، اما هميشه اين سوال مطرح است: آيا موسيقي مي تواند بر حيوانات، به خصوص‌ حيوانات پرورشي كه دايماً‌ در معرض استرس هاي گوناگون قرار دارنــد اثـــر مثبت بگذارد؟ تاكنون مطالعات اندكي درباره تاثير موسيقي بر رشد و ساير عملكردهاي فيزيولوژيك ماهي انجام شده است و اندك مطالعات اخير به تشخيص و تمايز موسيقي در كپور معمولي (Cyprinus carpio) و اثر موسيقي موزارت و نور بر فيزيولوژي اين ماهي و ماهي كاراس پرداخته اند (Chase, 2001; Papoutsoglou et al., 2007; Imanpoor et al., 2012). بنابراين هدف اين مطالعه تعيين اثرات موسيقي سنتي ايراني بر رشد و عملكرد فيزيولوژيك از نقطه نظر توليد مثل در ماهي سيچلايد گورخري (Cichlasoma nigrofasciatum) است. ماهي سيچلايد گورخري يكي از گونه هاي زينتي مي باشد كه از ظرفيت هوشي بالايي برخوردار است و در ميان ماهيان خانواده Cichlid به عنوان يك گونه مدل در تحقيقات بيولوژيك و فيزيولوژيك مورد استفاده قرار مي گيرد (Kocher, 2004). با توجه به اينكه گونه مذكور در مطالعات رفتارشناسي مورد توجه قرار دارد و فاصله بين تخم ريزي ها كم و تعداد تخم ها نيز كم و قابل شمارش است و والدين آسيبي به تخم ها نمي رسانند، براي مطالعه حاضر در نظر گرفته شد.

Aquaculture production is often accompanied by some stressors which undesirable effects on growth and physiological function. Music is one of the cases that could eliminate or reduce the effects of stressors. The purpose of this study was to determine the effect of Iranian traditional music on growth, reproduction and behavior of zebra cichlid (Cichlasoma nigrofasciatum). Fish with an average weight 5.5 ? 0.18 g were put under both music and silence treatments with the number of 2 fish/aquarium with 3 replicates for 4 weeks. Fish under music treatment were put twice a day and every 30 minutes under the Iranian traditional music. At the end of this period, suitable conditions for fish were created to spawning. The results showed no significant differences in growth parameters, but 50 percent of fish during the 2-week were spawned in music treatment. However, only 16.6 percent of fish under silent treatment were spawned. Of eggs and spawn time, significant differences were observed between two groups. When is music being played, the fish were found mainly along approach the speakers, while the distribution of fish treated silence was uniform. The results of present study showed that use of music can affect physiological function of fish, which have more tranquility and less stress on fish.