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) |
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---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 |
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