TABLE 3.
BWT (kg) | WWT (kg) | PADG (g/day) | PKR | PGE | PRGR | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Factors | N | LSM ± SE | N | LSM ± SE | N | LSM ± SE | N | LSM ± SE | N | LSM ± SE | N | LSM ± SE |
Overall | 1475 | 21.3 ± 0.05 | 1154 | 98.0 ± 0.67 | 1154 | 320 ± 2.79 | 1154 | 10.1 ± 0.04 | 900 | 3.51 ± 0.35 | 900 | 1.95 ± 0.00 |
Sex of calf | *** | *** | *** | *** | *** | *** | ||||||
Male | 675 | 21.7 ± 0.12 | 536 | 97.8 ± 1.05 | 536 | 317 ± 4.36 | 536 | 10.0 ± 0.06 | 417 | 3.73 ± 0.47 | 483 | 1.97 ± 5.61 |
Female | 800 | 20.9 ± 0.10 | 618 | 101 ± 0.85 | 618 | 334 ± 3.53 | 618 | 10.3 ± 0.05 | 483 | 3.26 ± 0.51 | 417 | 1.94 ± 6.59 |
Birth Season | *** | *** | *** | *** | *** | NS | ||||||
Dry | 584 | 21.0 ± 0.13 | 438 | 94.3 ± 1.15 | 438 | 304 ± 4.78 | 438 | 9.85 ± 0.06 | 326 | 3.46 ± 0.59 | 326 | 1.93 ± 5.02 |
Wet | 891 | 21.7 ± 0.09 | 716 | 104 ± 0.82 | 716 | 347 ± 3.41 | 716 | 10.5 ± 0.05 | 574 | 3.54 ± 0.44 | 574 | 1.94 ± 6.13 |
Birth Year | *** | *** | *** | *** | *** | *** | ||||||
2000 | 147 | 20.7 ± 0.24ed | 137 | 95.1 ± 1.87e | 137 | 310 ± 7.54f | 137 | 10.0 ± 0.11de | 114 | 3.61 ± 0.09d | 114 | 1.96 ± 0.00fg |
2001 | 79 | 21.9 ± 0.25cd | 68 | 102 ± 2.37de | 68 | 335 ± 9.75def | 68 | 10.3 ± 0.12cd | 49 | 3.56 ± 0.11de | 49 | 1.98 ± 0.01defg |
2002 | 119 | 21.3 ± 0.20cd | 80 | 112 ± 2.23abc | 80 | 376 ± 9.26bc | 80 | 10.8 ± 0.10b | 60 | 3.90 ± 0.09cd | 60 | 2.01 ± 0.00bcd |
2003 | 98 | 22.0 ± 0.16cd | 93 | 84.7 ± 1.80fg | 93 | 261 ± 7.47gh | 93 | 9.21 ± 0.12f | 80 | 2.84 ± 0.08g | 80 | 1.91 ± 0.00h |
2004 | 122 | 22.0 ± 0.13bc | 112 | 87.6 ± 2.48f | 112 | 274 ± 10.3g | 112 | 9.24 ± 0.17f | 73 | 2.72 ± 0.10g | 73 | 1.89 ± 0.01h |
2005 | 58 | 24.2 ± 0.22a | 45 | 104 ± 3.41d | 45 | 332 ± 14.1def | 45 | 10.1 ± 0.18de | 37 | 3.20 ± 0.13ef | 37 | 1.99 ± 0.01cdef |
2006 | 75 | 24.4±0.21a | 34 | 118 ± 2.99ab | 34 | 392 ± 12.5b | 34 | 10.9 ± 0.14b | 19 | 3.53 ± 0.12de | 19 | 2.04 ± 0.00ab |
2007 | 45 | 21.9 ± 0.50bc | 25 | 99.4 ± 3.40de | 25 | 325 ± 13.8ef | 25 | 10.2 ± 0.19cd | 20 | 3.55 ± 0.19de | 20 | 1.97 ± 0.01efg |
2008 | 66 | 16.9 ± 0.44h | 61 | 78.7 ± 1.99g | 61 | 258 ± 7.64gh | 61 | 9.67 ± 0.11e | 54 | 3.84 ± 0.12cd | 54 | 1.88 ± 0.01h |
2009 | 108 | 19.5 ± 0.18gf | 95 | 103 ± 2.72bcd | 95 | 349 ± 11.5cde | 95 | 10.6 ± 0.14bc | 55 | 3.73 ± 0.14d | 55 | 1.95±0.01g |
2010 | 67 | 20.0 ± 0.30efg | 54 | 101 ± 1.29de | 54 | 339 ± 5.21def | 54 | 10.6 ± 0.07bc | 51 | 4.15 ± 0.09c | 51 | 1.99 ± 0.00cde |
2011 | 64 | 19.4 ± 0.29fg | 64 | 124 ± 1.94a | 64 | 438 ± 8.13a | 64 | 11.7 ± 0.08a | 38 | 4.99 ± 0.15a | 38 | 2.05 ± 0.01a |
2012 | 66 | 19.0 ± 0.17g | 97 | 106 ± 0.85cd | 97 | 365 ± 3.34bcd | 97 | 11.0 ± 0.03b | 82 | 4.58 ± 0.04b | 81 | 2.01 ± 0.00bc |
2016 | 113 | 24.4 ± 0.27a | 83 | 101 ± 2.28de | 83 | 319 ± 9.39ef | 83 | 9.86 ± 0.12de | 71 | 2.94 ± 0.08fg | 71 | 1.97 ± 0.00efg |
2017 | 68 | 21.9 ± 0.41bc | 63 | 80.8 ± 1.64fg | 63 | 245 ± 6.70hg | 63 | 9.00 ± 0.11f | 56 | 2.74 ± 0.10g | 56 | 1.89 ± 0.00h |
2018 | 120 | 21.2 ± 0.23cd | 43 | 80.0 ± 2.32g | 43 | 241 ± 10.3h | 43 | 8.89 ± 0.19f | 41 | 2.71 ± 0.15g | 41 | 1.88 ± 0.012h |
N: number of observations.
p < 0.001: means within the same column and effect with different letters are significantly different.
Abbreviations: BWT, birthweight of calves; LSM, Least squares mean, NS, non‐significant; PADG, pre‐weaning average daily body weight gain of calves; PGE, pre‐weaning growth efficiency; PKR, pre‐weaning Kleiber ratio; PRGR, pre‐weaning relative growth rate; SE, standard error; WWT, weaning weight of calves.