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Table 4 Effect of experimental treatments on growth performance in broilers

From: Effect of advanced chelate technology based trace minerals on growth performance, mineral digestibility, tibia characteristics, and antioxidant status in broiler chickens

Item Experimental treatments1 SEM P value
NTM ITM CTM25 CTM50 CTM100
Average daily gain (g/bird/day)
 0–10 days 15.18b 16.68ab 16.18ab 16.60ab 17.76a 0.42 0.007
 10–24 days 54.83 57.44 56.41 58.17 60.28 1.36 0.103
 24–42 days 80.84 86.39 84.11 87.17 88.87 2.06 0.097
 0–42 days 56.54b 60.14ab 58.71ab 60.70a 62.41a 0.84 0.001
Average daily feed intake (g/bird/day)
 0–10 days 20.47 21.16 21.41 21.04 21.58 0.44 0.466
 10–24 days 85.32 87.78 87.09 89.35 89.52 2.09 0.608
 24–42 days 172.4 173.0 170.6 171.8 169.5 2.73 0.898
 0–42 days 107.2 108.4 107.2 108.4 107.6 1.18 0.901
Feed conversion ratio
 0–10 days 1.35 1.27 1.32 1.28 1.22 0.03 0.061
 10–24 days 1.56 1.53 1.54 1.54 1.49 0.05 0.910
 24–42 days 2.14 2.00 2.05 1.97 1.91 0.07 0.060
 0–42 days 1.90a 1.80ab 1.83ab 1.79ab 1.73b 0.04 0.036
Mortality rate (%)
 0–42 days 8.80 5.60 5.60 4.80 3.20 1.31 0.083
European performance index2
 0–42 days 277.3c 318.4bc 307.9bc 326.8ab 357.3a 10.65  < 0.001
  1. Values are means of 5 pens per treatment combination with 25 male broiler chickens
  2. a,b,cValues in the same row with different superscripts were significantly different (P < 0.05)
  3. 1NTM, no trace mineral supplementation; ITM, commercially recommended levels of inorganic trace mineral; CTM25, chelated trace mineral supplement (CTM) match to 25% of the ITM; CTM50, CTM match to 50% of the ITM; CTM100, CTM equivalent to ITM
  4. 2Calculated as: liveability (%) × live weight (kg) × 100/age (day) × (feed intake/body weight gain)