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Author: United States-Japan Cooperative Program in Natural Resources. Aquaculture Panel. Symposium
Publisher:
ISBN:
Category : Aquaculture
Languages : en
Pages : 162
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Book Description
Author: United States-Japan Cooperative Program in Natural Resources. Aquaculture Panel. Symposium
Publisher:
ISBN:
Category : Aquaculture
Languages : en
Pages : 162
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Book Description
Author: Trygve Gjedrem
Publisher: Springer Science & Business Media
ISBN: 9781402033414
Category : Science
Languages : en
Pages : 386
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Book Description
Although aquaculture as a biological production system has a long history, systematic and efficient breeding programs to improve economically important traits in the farmed species have rarely been utilized until recently, except for salmonid species. This means that the majority of aquaculture production (more than 90 %) is based on genetically unimproved stocks. In farm animals the situation is vastly different: practically no terrestrial farm production is based on genetically unimproved and undomesticated populations. This difference between aquaculture and livestock production is in spite of the fact that the basic elements of breeding theory are the same for fish and shellfish as for farm animals. One possible reason for the difference is the complexity of reproductive biology in aquatic species, and special consideration needs to be taken in the design of breeding plans for these species. Since 1971 AKVAFORSK, has continuously carried out large scale breeding research projects with salmonid species, and during the latest 15 years also with a number of fresh water and marine species. Results from this work and the results from other institutions around the world have brought forward considerable knowledge, which make the development of efficient breeding programs feasible. The genetic improvement obtained in selection programs for fish and shellfish is remarkable and much higher than what has been achieved in terrestrial farm animals.
Author: Trygve Gjedrem
Publisher: Springer Science & Business Media
ISBN: 9048127734
Category : Science
Languages : en
Pages : 221
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Book Description
The foundation of quantitative genetics theory was developed during the last century and facilitated many successful breeding programs for cultivated plants and t- restrial livestock. The results have been almost universally impressive, and today nearly all agricultural production utilises genetically improved seed and animals. The aquaculture industry can learn a great deal from these experiences, because the basic theory behind selective breeding is the same for all species. The ?rst published selection experiments in aquaculture started in 1920 s to improve disease resistance in ?sh, but it was not before the 1970 s that the ?rst family based breeding program was initiated for Atlantic salmon in Norway by AKVAFORSK. Unfortunately, the subsequent implementation of selective breeding on a wider scale in aquaculture has been slow, and despite the dramatic gains that have been demonstrated in a number of species, less than 10% of world aquaculture production is currently based on improved stocks. For the long-term sustainability of aquaculture production, there is an urgent need to develop and implement e- cient breeding programs for all species under commercial production. The ability for aquaculture to successfully meet the demands of an ever increasing human p- ulation, will rely on genetically improved stocks that utilise feed, water and land resources in an ef?cient way. Technological advances like genome sequences of aquaculture species, and advanced molecular methods means that there are new and exciting prospects for building on these well-established methods into the future.
Author: Michael Odei Erdiaw-Kwasie
Publisher: Springer Nature
ISBN: 9819930839
Category : Science
Languages : en
Pages : 703
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Book Description
This book provides novel perspectives to the ongoing global discussions on the UN Sustainable Development Goals (SDGs). Current knowledge on circular economy and the SDGs target in developing and emerging countries are mostly fragmented and empirical evidence is limited. The approach taken in the book is unique as it presents holistic viewpoints about the synergies, opportunities and challenges between circular economy and SDGs targets in developing and emerging countries. The book presents diverse contents on the topic including literature reviews, conceptual discussions, case studies, and empirical analysis.
Author: R. H. Mepham
Publisher: Food & Agriculture Org.
ISBN: 9789251026403
Category : Aquaculture
Languages : en
Pages : 260
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Book Description
FIRI/R370 (Suppl.).
Author:
Publisher: WorldFish
ISBN: 9832346665
Category : Aquaculture
Languages : en
Pages : 196
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 808
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Author:
Publisher: Food & Agriculture Org.
ISBN: 9251388857
Category :
Languages : en
Pages : 90
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Book Description
Author: Bangladesh. Department of Fisheries
Publisher:
ISBN:
Category : Fishery policy
Languages : en
Pages : 316
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Book Description
Author:
Publisher: DIANE Publishing
ISBN: 1428941525
Category :
Languages : en
Pages : 97
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Book Description
