From: Genetic parameters for uniformity of harvest weight and body size traits in the GIFT strain of Nile tilapia
Batch
Families
Groups
Families per group
Individuals
C
R
2009
66
209
188
418
376
2565
2461
2010
33
31
45
37
90
74
509
464
2011
68
239
221
478
442
3256
3165
Total
167
165
493
446
986
892
6330
6090