Ratifera (brachionus plicatilis O. F. müller) kültürü üzerine araştırmalar
Küçük Resim Yok
Tarih
1995
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Ege Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
SUMMARY In this laboratory investigation, effcts of temparature, salinity and foods on rotifer (Brachionus plicatllls) culture have been studied. In the begining of the experiments were separated amictic rotifer with one egg and finished 7. days. In this time, rotifers count, mean population growth rate, resting eggs amount, and rotifer size have been determinated. Experiments have been made on temparature at 20°C, 25°C ve 30°C, salinity at 20%o, 25%o, 30%o, %o35, and have been used phytoplankton (Isochrysis gaibana, Nannochloris sp., Dunaliella tertiolecta, Chlorella sp., Tetraselmis suecica), baker's yeast (0.5 gr/106, 0.75 gr/106, 1 gr/106, 1.3 gr/106), selko (0.5 gr/106) as food. At the end of the investigations, diffemces of temparature was found that 25°C and 30°C better than 20°C. There was a significant effect of temperature on rotifer population growth rates (PO.05). Differences between salinity was found that low salinity (20%o, 25%o, 30%o, 35%o) better than high salinity (P<0.05). Differences between rotifer foods (phytoplankton, yeast and selco) was found that phytoplankton better than yeast and selco (PO.05). Rotifer population growth rate was more rapid, when phylankton used as rotifer food. Especially, between the phytoplankton species, Tetraselmis suecica was better than other species for rotifer culture. Growth rate was determined 1.129 with Tetraselmis and 0.73 with baker's yeast (1.3 gr/106). Ressting egg has been determined from 4 to 7. days that pollution of culture medium and population density increased. So that, resting egg was found that used phytoplankton as food for rotifer culture. There was a significant effect of temperature on resting egg formation (P<0.05). Measures lorica lenght and width of rotifer fed with Tetraselmis and Chlorella have been found that rotifer fed with Tetraselmis was bigger than fed with Chlorella. There was significant effect of foods for rotifer lorica lenght and width (P<0.05). According to this investigation results have been found, when baker's yeast and selco used only one food for rotifer culture the rotifer population growth rate was 120not high. In conclusion we can suggest for succesfull rotifer culture, phytoplankton is not gave up food, so phytoplankton should be used in culture. However, for economical rotifer culture, baker's yeast and selco will used supplements food to phytoplankton in rotifer culture. Because phytoplankton culture and workship are expensive than baker's yeast selco. 121
SUMMARY In this laboratory investigation, effcts of temparature, salinity and foods on rotifer (Brachionus plicatllls) culture have been studied. In the begining of the experiments were separated amictic rotifer with one egg and finished 7. days. In this time, rotifers count, mean population growth rate, resting eggs amount, and rotifer size have been determinated. Experiments have been made on temparature at 20°C, 25°C ve 30°C, salinity at 20%o, 25%o, 30%o, %o35, and have been used phytoplankton (Isochrysis gaibana, Nannochloris sp., Dunaliella tertiolecta, Chlorella sp., Tetraselmis suecica), baker's yeast (0.5 gr/106, 0.75 gr/106, 1 gr/106, 1.3 gr/106), selko (0.5 gr/106) as food. At the end of the investigations, diffemces of temparature was found that 25°C and 30°C better than 20°C. There was a significant effect of temperature on rotifer population growth rates (PO.05). Differences between salinity was found that low salinity (20%o, 25%o, 30%o, 35%o) better than high salinity (P<0.05). Differences between rotifer foods (phytoplankton, yeast and selco) was found that phytoplankton better than yeast and selco (PO.05). Rotifer population growth rate was more rapid, when phylankton used as rotifer food. Especially, between the phytoplankton species, Tetraselmis suecica was better than other species for rotifer culture. Growth rate was determined 1.129 with Tetraselmis and 0.73 with baker's yeast (1.3 gr/106). Ressting egg has been determined from 4 to 7. days that pollution of culture medium and population density increased. So that, resting egg was found that used phytoplankton as food for rotifer culture. There was a significant effect of temperature on resting egg formation (P<0.05). Measures lorica lenght and width of rotifer fed with Tetraselmis and Chlorella have been found that rotifer fed with Tetraselmis was bigger than fed with Chlorella. There was significant effect of foods for rotifer lorica lenght and width (P<0.05). According to this investigation results have been found, when baker's yeast and selco used only one food for rotifer culture the rotifer population growth rate was 120not high. In conclusion we can suggest for succesfull rotifer culture, phytoplankton is not gave up food, so phytoplankton should be used in culture. However, for economical rotifer culture, baker's yeast and selco will used supplements food to phytoplankton in rotifer culture. Because phytoplankton culture and workship are expensive than baker's yeast selco. 121
SUMMARY In this laboratory investigation, effcts of temparature, salinity and foods on rotifer (Brachionus plicatllls) culture have been studied. In the begining of the experiments were separated amictic rotifer with one egg and finished 7. days. In this time, rotifers count, mean population growth rate, resting eggs amount, and rotifer size have been determinated. Experiments have been made on temparature at 20°C, 25°C ve 30°C, salinity at 20%o, 25%o, 30%o, %o35, and have been used phytoplankton (Isochrysis gaibana, Nannochloris sp., Dunaliella tertiolecta, Chlorella sp., Tetraselmis suecica), baker's yeast (0.5 gr/106, 0.75 gr/106, 1 gr/106, 1.3 gr/106), selko (0.5 gr/106) as food. At the end of the investigations, diffemces of temparature was found that 25°C and 30°C better than 20°C. There was a significant effect of temperature on rotifer population growth rates (PO.05). Differences between salinity was found that low salinity (20%o, 25%o, 30%o, 35%o) better than high salinity (P<0.05). Differences between rotifer foods (phytoplankton, yeast and selco) was found that phytoplankton better than yeast and selco (PO.05). Rotifer population growth rate was more rapid, when phylankton used as rotifer food. Especially, between the phytoplankton species, Tetraselmis suecica was better than other species for rotifer culture. Growth rate was determined 1.129 with Tetraselmis and 0.73 with baker's yeast (1.3 gr/106). Ressting egg has been determined from 4 to 7. days that pollution of culture medium and population density increased. So that, resting egg was found that used phytoplankton as food for rotifer culture. There was a significant effect of temperature on resting egg formation (P<0.05). Measures lorica lenght and width of rotifer fed with Tetraselmis and Chlorella have been found that rotifer fed with Tetraselmis was bigger than fed with Chlorella. There was significant effect of foods for rotifer lorica lenght and width (P<0.05). According to this investigation results have been found, when baker's yeast and selco used only one food for rotifer culture the rotifer population growth rate was 120not high. In conclusion we can suggest for succesfull rotifer culture, phytoplankton is not gave up food, so phytoplankton should be used in culture. However, for economical rotifer culture, baker's yeast and selco will used supplements food to phytoplankton in rotifer culture. Because phytoplankton culture and workship are expensive than baker's yeast selco. 121
Açıklama
Bu tezin, veri tabanı üzerinden yayınlanma izni bulunmamaktadır. Yayınlanma izni olmayan tezlerin basılı kopyalarına Üniversite kütüphaneniz aracılığıyla (TÜBESS üzerinden) erişebilirsiniz.
Anahtar Kelimeler
Su Ürünleri, Aquatic Products, Rotifera, Rotifera
