Quantifying the genetic parameters of feed efficiency in juvenile Nile tilapia Oreochromis niloticus

BMC Genomic Data

Table 1 Basic statistics (LS Means ± Standard Error) for all traits analysed

Trait¹	N	Mean ± SD	Min	Max	CV (%)	LS Means ± SE
Trait¹	N	Mean ± SD	Min	Max	CV (%)	Males	Females
Growth traits and feed intake
BWi	1029	22.4 ± 5.64	7.74	40.15	25.1	23.4 ± 0.17^a	21.01 ± 0.18^b
BWf	993	31.9 ± 8.26	10.04	56.61	25.9	33.7 ± 0.26^a	29.4 ± 0.27^b
TGC_LOSS	997	− 0.036 ± 0.01	− 0.068	0.00	24.9	− 0.036 ± 0.001^a	− 0.036 ± 0.001^a
TGC_COMP	995	0.282 ± 0.049	0.024	0.426	17.5	0.296 ± 0.002^a	0.265 ± 0.002^b
BWG	981	9.33 ± 3.14	0.76	18.3	33.7	10.3 ± 0.11^a	8.35 ± 0.12^b
TGC_FI	993	0.16 ± 0.04	0.03	0.28	22.5	0.17 ± 0.001^a	0.15 ± 0.002^b
FI	949	8.35 ± 2.42	1.80	15.6	29.0	9.05 ± 0.09^a	8.17 ± 0.09^b
Feed efficiency traits
FCR	953	0.94 ± 0.21	0.47	1.55	22.1	0.91 ± 0.01^a	1.01 ± 0.01^b
RFI	935	0 ± 1.53	−4.41	4.40	NR	−0.40 ± 0.06^a	0.09 ± 0.07^b

¹BWi and BWf: BW at the beginning and at the end of the FI period (in g), respectively; TGC_LOSS Loss of weight during the fasting period estimated as thermal growth coefficient during the fasting period, TGC_COMP Gain of weight during the feeding period estimated as the thermal growth coefficient during the refeeding period, BWG Body weight gain during the FI period (g), TGC_FI Thermal growth coefficient during the FI period, FI Feed intake (g), FCR Feed conversion ratio (g.g^− 1), RFI Residual feed intake (g)
NR CV are not relevant in these cases
^a-bLS Means within row with different superscript are significantly different (P-value < 0.05)

ISSN: 2730-6844