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undergraduate thesis
"Mogućnosti unapređenja uzgoja lubina genetičkim metodama"
2017. urn:nbn:hr:155:232046
Kalafatović, Lukša
University of Dubrovnik
Department of Applied Ecology

Cite this document

Kalafatović, L. (2017). "Mogućnosti unapređenja uzgoja lubina genetičkim metodama" (Undergraduate thesis). Dubrovnik: University of Dubrovnik. Retrieved from https://urn.nsk.hr/urn:nbn:hr:155:232046

Kalafatović, Lukša. ""Mogućnosti unapređenja uzgoja lubina genetičkim metodama"." Undergraduate thesis, University of Dubrovnik, 2017. https://urn.nsk.hr/urn:nbn:hr:155:232046

Kalafatović, Lukša. ""Mogućnosti unapređenja uzgoja lubina genetičkim metodama"." Undergraduate thesis, University of Dubrovnik, 2017. https://urn.nsk.hr/urn:nbn:hr:155:232046

Kalafatović, L. (2017). '"Mogućnosti unapređenja uzgoja lubina genetičkim metodama"', Undergraduate thesis, University of Dubrovnik, accessed 28 December 2024, https://urn.nsk.hr/urn:nbn:hr:155:232046

Kalafatović L. "Mogućnosti unapređenja uzgoja lubina genetičkim metodama" [Undergraduate thesis]. Dubrovnik: University of Dubrovnik; 2017 [cited 2024 December 28] Available at: https://urn.nsk.hr/urn:nbn:hr:155:232046

L. Kalafatović, ""Mogućnosti unapređenja uzgoja lubina genetičkim metodama"", Undergraduate thesis, University of Dubrovnik, Dubrovnik, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:155:232046

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Metadata
Title"Mogućnosti unapređenja uzgoja lubina genetičkim metodama"
AuthorLukša Kalafatović
MentorBranko Glamuzina (mentor)
Committee memberBranko Glamuzina (predsjednik povjerenstva)
GranterUniversity of Dubrovnik
(Department of Applied Ecology)
Dubrovnik
Defense date and country2017-03-08, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Biotechnology
Abstract
Cilj ovog rada je da nas upozna s metodama genetičkog unaprjeđenja lubina (Dicentrarchus labrax L.) Kroz razne postupke ćemo objasniti kako možemo genetički unaprijediti spomenutu vrstu sa ciljem veće ekonomske isplativosti uzgoja. Uzgoja lubina kao važne vrste u europskoj akvakulturi od 1980 godine je u konstantnom rastu. Danas su uspješno proizvedeni triploidni i tetraploidni lubini. Triploidija kod lubina postiže se zadržavanjem sekundarnog polarnog tjelešca, fizičkim ili kemijskim metodama. Pokusima se dokazalo da je najbolje vrijeme za indukciju triploidije kod lubina pet minuta nakon oplodnje u trajanju šoka od 10 minuta i temperaturom morske vode od 0°C. U uzgoju dvogodišnjeg lubina nije izražena veća prednost u odnosu na diploide. Lubin nakon četiri godine uzgoja nema razlike u masi u odnosu na diploidnog lubina. Tetraploidi se dobivaju sprječavanjem prve mitotičke diobe, uništavanjem tubula diobenog vretena. Pokusima je ustanovljeno da se najveći postotak tetraploida dobiva 70 do 90 minuta nakon oplodnje te intenzitetom tlačnog šoka od 81-91 MPa.
Abstract (english)
Objective of this work is to in troduce us to the methods of genetic enhancement of seabass ( Dicentrarchus labrax L.). Through various procedures we will explain how to genetically improve mentioned species, and make it more economically profitable. Breading of seabass as an important aquacultural species since 1980 is in a constant growth. Today triploid and tetraploid seabass can be achived by retaining secondary polar body, using phisical or chemical methods. It was experimentary approved that it is the best time for triploid induction in sea bass five minutes after fertilization in duration of 10 minutes shock and sea water temperature need to be 0° C. In the farming of the two year old sea bass the bigger benefit in comparison to diploid wasnt shown. After four years of farming triploid sea bass is not showing differences in weight in comparison to diploid. Tetraploids are made by stopping the first mitotic diobe, destroying the tubes of mitotic spindle. It was established by experiments that the biggest percentage of tetraploids is obtained 70-90 minutes after fertilization and intensity of a pressure shock of 81-91 MPa.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:155:232046
Study programmeTitle: Aquaculture
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka akvakulture (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka akvakulture)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2017-03-09 10:43:09