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Table 1 Means (±SD) and significance for production, feed efficiency and body composition traits, for the effect of the diet, the line and their interaction

From: Chicken adaptive response to low energy diet: main role of the hypothalamic lipid metabolism revealed by a phenotypic and multi-tissue transcriptomic approach

 {R+,CT}a{R+,LE}a{R-,CT}a{R-,LE}aDietbLinebDiet × Lineb
Body weight, week 31 (g)2162.35 (±165.33)2142.46 (±129.28)2089.44 (±216.87)1925.40 (±217.32)***0.11
Laying intensity (%)86.17 (±11.92)87.73 (±7.81)86.87 (±5.44)84.59 (±8.58)0.700.500.54
Egg number60.94 (±9.33)62.18 (±9.93)61.17 (±6.16)60.47 (±7.43)0.930.860.60
Egg weight (g)47.91 (±3.11)46.80 (±2.98)48.08 (±2.25)47.61 (±1.82)0.210.530.60
Egg mass (g)c1166.41 (±181.31)1182.36 (±210.53)1118.36 (±108.85)1055.80 (±126.99)0.43*0.27
Static stiffness (N.mm−1)109.68 (±18.75)104.64 (±15.58)126.75 (±18.39)118.95 (±18.76)0.12***0.75
Feed intake (g)c4128.47 (±426.94)4398.10 (±551.14)2583.92 (±308.26)2728.73 (±419.65)****0.50
Energy intake (kcal)c11,188.16 (±1157.00)10,207.97 (±1279.19)7002.41 (±835.38)6333.39 (±974.01)*****0.52
RFI (g/21d−1)c868.36 (±329.66)1152.32 (±390.52)− 614.35 (±134.93)− 196.81 (±211.78)******0.28
Abdominal adipose weight at 31 weeks (g)73.33 (±21.10)57.10 (±18.61)129.83 (±44.23)105.00 (±31.67)****0.64
Ratio of abdominal adipose weight to body weight at 31 weeks (%)3.37 (±0.83)2.65 (±0.78)5.96 (±1.39)5.24 (±1.09)****1
  1. aValues represent the line/treatment group means for each trait (±standard deviation). R+ refers to low feed efficient layers and R- to high feed efficient layers, CT to control group and LE to low energy diet. The number of animals analyzed are: R+,CT n = 34, R+,LE n = 11, R-,CT n = 36, R-,LE n = 15
  2. b***: p < 0.001, **: p < 0.01, *: p < 0.05
  3. cFeed-related traits were measured between 28 and 31 weeks of age