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Table 1 Traits of investigated cockerels used in RNA sequencing and qPCR analyses

From: Identification of candidate genes and regulatory factors related to growth rate through hypothalamus transcriptome analyses in broiler chickens

Trait ROSS308
3-week-old 6-week-old
LGR
(n = 9)
HGR
(n = 9)
LGR
(n = 9)
HGR
(n = 9)
Mean ± SD Mean ± SD Mean ± SD Mean ± SD
BW in first day (g)a 45.1 ± 1.72 45.4 ± 1.64 44.9 ± 1.14 45.2 ± 2.04
BW in 2nd week (g) 486.67 ± 10.0A 547.0 ± 14.94B 484.0 ± 11.74A 545.6 ± 11.30B
Slaughter BW (g) 1120.0 ± 14.14A 1296.0 ± 20.66B 3222.0 ± 75.10A 3906.7 ± 95.92B
Average daily gain (g)a 51.19 ± 0.69A 59.55 ± 0.92B 72.21 ± 1.71A 87.76 ± 2.18B
Average daily gain from 2nd week (g) 79.17 ± 2.34A 93.17 ± 2.39B 88.32 ± 2.58A 108.42 ± 3.23B
Breast muscles (g) 200.18 ± 11.27A 243.74 ± 11.94B 786.45 ± 66.92A 955.40 ± 46.44B
Leg muscles (g) 174.05 ± 8.97A 204.33 ± 11.52B 538.98 ± 51.59A 657.69 ± 42.71B
Abdominal fat (g) 8.42 ± 2.63 9.77 ± 2.34 26.59 ± 10.21 34.11 ± 6.33
Feed intake (g) 634.8 ± 18.64A 689.8 ± 15.75B 4575.6 ± 187.24A 5036.8 ± 106.28B
Feed Conversion Ratio (FCR) 1.0 ± 0.03A 0.92 ± 0.02B 1.67 ± 0.07A 1.5 ± 0.03B
  1. A, B Values in rows with different letters show significant results (P ≤ 0.01). The statistical analysis between high and low growth rate chickens was estimated (using Student’s t-test) separately for 3rd and 6th-week old chickens. LGR Low growth rate; HGR High growth rate; BW Body weight; Feed intake – from 2nd week of age to the slaughter; FCR Measured based on feed intake and body weight gain from 2nd week of age to the slaughter; a-from hatching
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