Improvement in feed efficiency and reduction in nutrient loading from rainbow trout farms: the role of selective breeding.

ABSTRACT: Resource efficiency, the ratio of inputs to outputs, is essential for both the economic and environmental performance of any sector of food production. This study quantified the advancement in the feed conversion ratio (FCR) and reduction in nutrient loading from rainbow trout farming in Finland and the degree to which genetic improvements made by a national breeding program have contributed to this advancement. The study combined two datasets. One included annual records on farm-level performance of commercial rainbow trout farms from 1980 onwards, and the other included individuals across eight generations of the national breeding program. The data from the commercial farms showed that from 1980 onwards, the farm-level feed conversion ratio improved by 53.4%, and the specific nitrogen an

SUBMITTER: Kause A 

PROVIDER: S-EPMC9387595 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature