נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Genetic testing of common carp in cages. 2. Influence of variation in initial weight on weight gain
Year:
1993
Source of publication :
aquaculture (source)
Authors :
Moav, Ram
;
.
Wohlfarth, Giora W.
;
.
Volume :
109
Co-Authors:
Wohlfarth, G.W., Agricultural Research Organization, Fish and Aquaculture Research Station, Dor, Israel
Moav, R., Agricultural Research Organization, Fish and Aquaculture Research Station, Dor, Israel
Facilitators :
From page:
245
To page:
256
(
Total pages:
12
)
Abstract:
Three tests are described, in which common carp were stocked into net cages. A positive association was found between weight gain and initial weight, both for individual carp and means of four to five fish. This association cannot be due to direct interactions among the groups, since different test groups were stocked separately. In the last test, seven genetic groups were stocked into separate cages. Their observed weight gains were corrected for the biassing effect of variation in initial weight, with the aid of multiply-nursed samples. This resulted in a reduction of the standard deviation of weight gain, a reduction in the association between initial weight and weight gain, and a change of ranking among the genetic groups tested. We conclude that reliable estimation of genetic differences in growth requires amending observed weight gains for variation in initial weight in separate testing cages. This has been previously demonstrated for communal pond testing. © 1993.
Note:
Related Files :
Show More
Related Content
More details
DOI :
10.1016/0044-8486(93)90167-W
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
30593
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:55
Scientific Publication
Genetic testing of common carp in cages. 2. Influence of variation in initial weight on weight gain
109
Wohlfarth, G.W., Agricultural Research Organization, Fish and Aquaculture Research Station, Dor, Israel
Moav, R., Agricultural Research Organization, Fish and Aquaculture Research Station, Dor, Israel
Genetic testing of common carp in cages. 2. Influence of variation in initial weight on weight gain
Three tests are described, in which common carp were stocked into net cages. A positive association was found between weight gain and initial weight, both for individual carp and means of four to five fish. This association cannot be due to direct interactions among the groups, since different test groups were stocked separately. In the last test, seven genetic groups were stocked into separate cages. Their observed weight gains were corrected for the biassing effect of variation in initial weight, with the aid of multiply-nursed samples. This resulted in a reduction of the standard deviation of weight gain, a reduction in the association between initial weight and weight gain, and a change of ranking among the genetic groups tested. We conclude that reliable estimation of genetic differences in growth requires amending observed weight gains for variation in initial weight in separate testing cages. This has been previously demonstrated for communal pond testing. © 1993.
Scientific Publication
You may also be interested in