The Evaluation of the Reproductive Performance of Land Snail, Cornu aspersum (Müller, 1774) without Photoperiod in the Non-breeding Season

Year 2022, Volume: 11 Issue: 2, 67 - 72, 11.11.2022

M. Yeşim Çelik Seval Dernekbaşı Gülşen Uzun Gören Emin Karataş Sedat Karayücel

Abstract

The purpose of this study was to investige the reproductive success of land snails (Cornu aspersum) without photoperiod during the non-breeding season in the Black Sea Region between December 2019 and January 2020. Snails, which were placed in cold storage for a hundred days, were awakened in December. The reproductive performances were assessed under semi-controlled laboratory conditions using the natural daylight cycle and the ideal temperature and moisture. The experiment was designed as a single group with 3 replications. The experiment was designed 3 replications, with 10 snails in each replicate in total of 30 snails. The reproductive performance of the snails was observed daily and the first mating took place on the 9th day of the study and the first egg-laying was detected in the second week of the study. The fecundity of the snails was 43%. Spawning activity was continued through to 3 weeks. The mean number of eggs, hatching rate and the number of offsprings were 151.13±22.02, 90.33±2.39% and 138.13±21.09, respectively. The mean egg and offspring live weights were 0.034±0.001 g and 0.03±0.007 g, respectively. The findings showed that the reproductive performance was low. In conclusion, reproductive performance is unsuitable for commercial snail production without the photoperiod treatment during the non-breeding season.

Keywords

Land snail,, reproduction performance,, breeding

The Evaluation of the Reproductive Performance of Land Snail, Cornu aspersum (Müller, 1774) without Photoperiod in the Non-breeding Season

Abstract

Bu çalışma, Karadeniz Bölgesinde Cornu aspersum türü kara salyangozlarının doğal üreme dönemi olmayan dönemde, Aralık 2019-Ocak 2020 tarihleri arasında fotoperiyot uygulanmadan üreme başarısını gözlemlemek amacıyla yapılmıştır. Yüz gün süreyle soğuk hava deposunda bekletilen anaç salyangozlar, aralık ayında uyandırılmıştır. Üreme performansları, doğal gün ışığı döngüsü, ideal nem ve sıcaklık kullanılarak yarı kontrollü laboratuvar koşullarında değerlendirilmiştir. Deneme tek grup ve üç tekerrürlü olacak şekilde tasarlanmıştır. Deneme başladıktan sonra salyangozların üreme performansları günlük olarak gözlemlenmiştir. İlk çiftleşme çalışmanın dokuzuncu gününde gerçekleşmiş ve çalışmanın ikinci haftasında ilk yumurtlama tespit edilmiştir. Çalışmada salyangozların üreme performansı % 43 olarak bulunmuş olup yumurtlama aktivitesi üç haftaya kadar azalarak devam etmiştir. Ortalama yumurta sayısı, yavru çıkış oranı ve yavru sayısı sırasıyla 151.13±22.02, %90.33±2.39 ve 138.13±21.09 olarak bulunmuştur. Ortalama yumurta ve yavru ağırlıkları sırasıyla 0.034±0.001 g ve 0.03±0.007 g olarak tespit edilmiştir. Çalışmadan elde edilen bulgulara göre salyangozların üreme performanslarının düşük olduğu belirlenmiştir. Sonuç olarak, doğal üreme dönemi dışındaki bir dönemde fotoperiyot uygulanmadan elde edilen üreme performansının ticari salyangoz üretimi için uygun olmadığı sonucuna varılmıştır.

Keywords

Kara salyangozu,, üreme performansı,, yetiştiricilik

References

• Angeloni, L., Bradbury, J.W., Charnov, E.L. 2002. Body Size And Sex Allocation In Simultaneously Hermaphroditic Animals. Behavioral Ecology, 13: 419-426.
• Ansart, A., Vernon, P., Daguzan, J. 2002. Effects Of A Freezing Event During Hibernation On Further Survival, Reproduction And Growth In The Partially Freezing Tolerant Land Snail Helix aspersa (Gastropoda: Helicidae). Cryo-Lett., 23: 269-274.
• Aupinel, P., Daguzan, J., 1989. Étude Du Rôle De La Photopériode Sur L’activité Métabolique Des Jeunes Escargots Petit-Gris Petit-Gris (Helix aspersa Müller) Et Mise En Évidence D’une Phase Photosensible. Haliotis, 19: 47-55.
• Bailey, SER., 1981. Circannual And Circadian Rhythms In The Snail Helix Aspersa And The Photoperiodic Control Of Annual Activity And Reproduction. Journal of Comparative Physiology, 142: 89-94.
• Bernardo, J., 1996. Maternal Effects In Animal Ecology. American Zoologist, 36: 83-105.
• Blair, R., 2008. Nutrition And Feeding Of Organic Poultry. CAB International, Wallingford, Oxford, UK.
• Çelik, M.Y., Duman, M.B., Sarıipek, M., Uzun, G., Kaya Öztürk, D., Karayücel, S. 2018. Effect Of Shell Height On The Reproductive Success And Survival Of Cornu aspersum (O.F. Müller, 1774). AACL Bioflux, 11(2): 525-532.
• Charrier, M., 1980. Contribution À La Biologie Et À L’écophysiologie De L’escargot Petit-Gris Helix aspersa Müller (Gasteropode pulmone Stylommatophore).
• Clutton-Brock, T.H., 1988. Reproductive Success Studies Of Individual Variation In Contrasting Breeding Systems. The University of Chicago Press, Chicago, 548 pp.
• Dillen, L., Jordaens, K., Van Dongen, S., Backeljau, T. 2010. Effects Of Body Size On Courtship Role, Mating Frequency And Sperm Transfer In The Land Snail Succinea putris. Animal Behaviour 79(5): 1125-1133.
• Duman, M., Çelik, M.Y., 2019. Cornu aspersum (Müller 1774) Ve Helix lucorum (Linnaeus 1758) Türü Kara Salyangozlarının Biyokimyasal Kompozisyonu. Gaziosmanpaşa Journal of Scientific Research, 8(3): 44-49.
• Enée, J., Bonnefoy-Claudet, R., Gomot, L., 1982. Effets De La Photopériode Artificielle Sur La Reproduction De L’escargot Helix Aspersa Müller. Comptes Rendus de l’Académie des Sciences, Paris, 294: 357-360.
• Gołąb, M.J., Lipińska, A.M., 2009. The Effect Of Parent Body Size On The Egg Size And Offspring Growth In Helix pomatia Linnaeus, 1758 (Gastropoda: Pulmonata: Helicidae). Folia Malacologica, 17(2): 69-72.
• Gomot, P., Griffond, B., Gomot, L. 1986. Effets De La Température Sur La Spermatogénèse d’Escargots Helix Aspersa Maintenus En Repos Artificiel. C. R. Acad. Sci. Paris, 302: 27-32.
• Gomot, l., Griffond, B., 1993. Action Of Epigenetic Factors On The Expression Of Hermaphroditism In The Snail Helix aspersa. Comprehensive. Biochemical. Physiology, 104: 195-199.
• Gomot, P., Deray, A., 1990. The Length Of Hibernation Affects Temperature-Induced (25°C) Spermatogenic Multiplication In Helix aspersa Müller. Experientia, 46: 684-686.
• Gomot, P., Gomot, L., 1989. Inhibition Of Temperature-Induced Spermato-Genic Proliferation By A Brain Factor In Hibernating Helix aspersa (Mollusca). Experientia 45: 349-351.
• Gomot, P., Griffond, B., Gomot, l. 1990. Action De La Température Sur La Synthèse D’adn Des Cellules Mâles Et La Spermatogenèse D’ Helix aspersa en hibernation. Journal of Thermal. Biology, 15: 267-280.
• Hatziioannou, M., Issari, A., Neofitou, C., Aifadi, S., Matsiori, S. 2014. Economic Analysis And Production Techniques Of Snail Farms In Southern Greece. World Journal of Agricultural Research, 2(6): 276-279.
• Madec, L., Guiller, A., Coutellec-Vreto, M.A., Desbuquois, C. 1998. Size-fecundity Relationships In The Land Snail Helix aspersa: Preliminary Results On A Form Outside The Norm. Invertebrate Reproduction and Development, 34(1): 83-90.
• Roff, DA., 1993. Evolution Of Life Histories: Theory And Analysis. Springer US, 548 pp.
• Stephens, G.J., Stephens, G.C., 1966. Photoperiodic Stimulation Of Egg Laying In The Land Snail Helix aspersa. Nature, 212: 1582.
• Tafoughalt-Benbellil, S., Sahnoune, M de., Vaufleury, A., Moali, A. 2011. Influence Of Sampling Date On Reproduction In The Land Snail Helix Aperta Kept Under Controlled Conditions Of Temperature And Photoperiod. Revue d’Ecologie (la Terre et la Vie), 66: 43-54.