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Family–tank interactions on early growth performance of yellow perch reared in single‐family tanks versus mixed‐family tanks as inferred using microsatellite pedigrees
Author(s) -
Wang HanPing,
Yao Hong,
O'Bryant Paul,
Rapp Dean,
Wallat Geoff,
MacDonald Russ
Publication year - 2011
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.2010.02767.x
Subject(s) - pedigree chart , biology , single family , microsatellite , water tanks , strain (injury) , body weight , gene family , genetics , zoology , demography , gene , anatomy , allele , real estate , endocrinology , sociology , engineering , gene expression , marine engineering , political science , law
From 17 families, 400 fingerlings were evenly stocked into four replicates of each of five groups: single family from an Ohio strain, single family from a North Carolina strain, three families from the cross of five strains, 12 families from the cross of five strains and a combination of all 17 families. After rearing for 27 weeks, the progeny from the 17 families could be confidently assigned to their family of origin at the rate of 97.9%. The cross‐bred multi‐families (12‐family and 3‐family groups) from different strains gained significantly more weight than both single‐family groups in separate tanks throughout most of the experiment ( P <0.05), but no significant differences were detected in body weight among the four groups in the all‐family communal tanks ( P >0.05). Both single families grew significantly faster in the all‐family communal tanks than in single‐family tanks by the end of the experiment ( P <0.05). In addition, no correlation was detected between family mean weight obtained from the multi‐family tanks (12‐family and 3‐family groups) and the family mean weight in the all‐family tanks. These results indicated that there were strong effects of genotype by environment interactions on early growth performance of yellow perch.