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. 2016 Jan 25;53(1):8–21. doi: 10.2141/jpsa.0150067

Table 4. Effect of Arg supply and genotype on growth and laying performance from the 22nd to 41st week of age.

WLA
BLA
R11
L68
ANOVA (p values)
LA AA HA LA AA HA LA AA HA LA AA HA PSEM GT DIET AGE GT×DIET GT×AGE DIET×AGE GT×DIET ×AGE
Body weight, kg/hen
week 22–25 1.53c 1.43cd 1.48c 1.50c 1.70b 1.70b 1.24e 1.34d 1.32de 1.73b 1.81a 1.85a 0.03 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.05
week 26–29 1.44de 1.36e 1.37e 1.48d 1.63c 1.62c 1.25f 1.33ef 1.31ef 1.74b 1.85a 1.86a 0.03
week 30–33 1.36d 1.29de 1.26e 1.46c 1.57b 1.55b 1.25e 1.31de 1.29de 1.76b 1.89a 1.88a 0.03
week 34–37 1.32d 1.24e 1.23e 1.44c 1.52b 1.56b 1.25d1.31 d 1.29de 1.78a 1.85a 1.84a 0.03
week 38–41 1.29d 1.19e 1.20e 1.40c 1.47bc 1.56b 1.26de 1.31d 1.30d 1.80a 1.81a 1.83a 0.03
Daily feed intake, g/hen/d
week 22–25 83d 81d 80d 105a 98b 100ab 66e 70e 67e 83d 91c 90b 2 <0.001 <0.001 <0.001 <0.001 <0.001 n.s. <0.001
week 26–29 78e 80de 69f 117a 93c 101bc 79de 85d 80de 95c 104b 98bc 2
week 30–33 69e 76d 71de 111a 88c 89c 84c 84c 85c 96b 100b 99b 2
week 34–37 65de 69d 61e 99a 84bc 79c 76c 82bc 77c 86b 93a 98a 2
week 38–41 60de 71cd 58e 97a 85b 84b 71cd 73c 66d 83b 74c 94a 3
Laying intensity, %
week 22–25 39.0c 60.0a 54.4ab 32.7cd 45.8bc 48.5b 3.5f 5.2ef 8.9ef 13.1e 26.4d 19.2de 3.1 <0.001 <0.05 <0.001 n.s. <0.001 n.s. n.s.
week 26–29 73.9ab 76.8ab 73.1ab 72.8ab 71.6ab 80.9a 55.5d 60.0cd 62.2c 67.4bc 75.9ab 69.6b 3.1
week 30–33 58.3b 63.2b 58.0b 60.4b 61.3b 73.4a 63.3b 62.2b 66.0ab 65.1ab 73.0a 65.4ab 3.1
week 34–37 46.7c 57.9ab 53.1bc 61.4ab 51.0bc 61.0ab 55.6b 55.6b 55.2b 53.7bc 64.0ab 65.4a 3.1
week 38–41 32.8bc 46.0ab 35.7b 46.9ab 36.8ab 45.0ab 32.5bc 40.7ab 25.4c 39.6ab 47.3a 47.6a 3.8
Egg weight, g/egg
week 22–25 47.3b 47.9b 47.4b 48.5b 51.2a 50.7ab 39.8e 43.5cd 42.5d 40.9de 41.4de 43.2cd 0.5 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
week 26–29 48.6bc 49.6b 47.1c 50.9ab 52.2a 52.4a 44.0d 45.0cd 44.1d 45.3cd 46.7c 48.1bc 0.5
week 30–33 47.5cd 50.3bc 48.9c 53.5a 52.6ab 52.0ab 46.5d 47.0cd 45.9d 49.6bc 49.2bc 51.1b 0.6
week 34–37 48.9bc 49.9b 48.4bc 52.9a 49.8b 51.8ab 47.1c 47.8bc 46.8c 49.5bc 49.9b 51.3ab 0.6
week 38–41 48.7bc 48.9bc 51.5b 52.2ab 47.6c 54.5a 47.9c 46.7c 47.8c 52.1ab 48.7bc 52.7ab 0.7
Daily egg mass, g/hen/d
week 22–25 17.4b 28.7a 24.9ab 15.5bc 22.3ab 23.3ab 0.7d 1.1d 1.8cd 3.5cd 11.5bc 8.5c 3.0
week 26–29 35.5ab 37.5ab 34.7ab 36.8ab 36.2ab 41.9a 23.1c 28.6bc 26.9bc 29.8bc 34.8ab 32.6b 3.0
week 30–33 28.3b 31.5ab 28.3b 31.6ab 32.4ab 38.6a 28.7b 28.3b 29.9ab 30.9ab 35.3ab 34.2ab 3.0
week 34–37 22.6b 29.3ab 26.1ab 32.7a 26.7ab 32.0a 26.1ab 26.6ab 25.6ab 26.7ab 31.9a 33.8a 3.0
week 38–41 15.8ab 23.3ab 17.4ab 24.8a 18.4ab 23.6a 15.5ab 19.2ab 11.8b 20.6ab 23.5a 24.5a 3.6
Feed to egg mass ratio, kg/kg
week 22–25 4.7f 2.8f 3.2f 6.8ef 4.4f 4.3f 96.6a 65.2b 38.2c 23.8d 8.0ef 10.6e 1.4 n.s. n.s. <0.001 n.s. n.s. n.s. n.s.
week 26–29 2.2 2.1 2.0 3.2 2.6 2.4 3.4 3.0 3.0 3.2 3.0 3.0 0.4
week 30–33 2.4 2.4 2.5 3.5 2.7 2.3 2.9 3.0 2.8 3.1 2.8 2.9 0.4
week 34–37 2.9 2.4 2.3 3.0 3.1 2.5 2.9 3.1 3.0 3.2 2.9 2.9 0.5
week 38–41 3.8 3.0 3.3 3.9 4.6 3.5 4.6 3.8 5.6 4.0 3.2 3.8 0.5
a–f

LSMeans values with PSEM (n=36 chicks/experimental group) in the same row with different superscripts are significantly different (p<0.05)

n.s.=not significant