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Table 3 Least squares means (±SE) for effects of agro ecology, season and parity on milk production traits

From: Evaluation of non-genetic factors affecting calf growth, reproductive performance and milk yield of traditionally managed Sheko cattle in southwest Ethiopia

Effects and levels N DMY (lt) N LMY (lt) N 305DY (lt) N LL (days)
Overall 1522 2.79 ± 0.06 1522 850.69 ± 24.16 547 839.07 ± 31.34 75 307.69 ± 6.13
R2   0.08   0.32   0.77   0.20
CV (%)   21.05   196.38   10.78   17.55
AEZ   NS   *   NS   *
 Lowland 882 2.82 ± 0.10 882 855.85 ± 33.98 313 721.27 ± 33.75 43 310.26 ± 9.34
 Midland 640 2.65 ± 0.11 640 743.89 ± 35.82 234 751.73 ± 27.85 32 283.73 ± 9.85
Season   NS   **   **   **
 Dry 406 2.64 ± 0.17a 406 684.92 ± 56.80a 145 497.88 ± 52.55a 20 273.92 ± 15.62a
 Short rainy 629 2.80 ± 0.08a 629 902.96 ± 28.77b 226 881.00 ± 23.55b 31 324.08 ± 7.91b
 Main rainy 487 2.77 ± 0.13a 487 816.23 ± 44.76ab 176 830.61 ± 34.816b 24 292.99 ± 12.31a
Parity   NS   *   **   NS
 1st 436 2.56 ± 0.13a 436 680.73 ± 42.75a 160 544.47 ± 56.45a 22 283.30 ± 11.75a
 2nd 294 2.74 ± 0.15a 294 770.05 ± 52.19ab 102 771.53 ± 41.48b 14 284.75 ± 14.35a
 3rd 243 2.88 ± 0.12a 243 866.96 ± 38.83b 87 846.06 ± 35.24b 12 297.92 ± 10.68a
 4th 345 2.83 ± 0.21a 345 894.37 ± 69.76b 124 745.36 ± 55.00cb 17 320.41 ± 19.18a
 5th 204 2.67 ± 0.19a 204 794.74 ± 64.11ab 74 772.05 ± 37.59b 10 298.60 ± 17.63a
Stage of lactation   **   NA   NA   NA
 1st stage 450 3.88 ± 0.08a       
 2nd stage 390 2.77 ± 0.07b       
 3rd stage 682 1.8 ± 0.07c       
  1. Least squares means with same superscript in the same column and class indicate non significance
  2. N number of records, DMY daily milk yield, LMY lactation milk yield, 305DY 305 days milk yield, LL lactation length, NA not applicable
  3. * P < 0.05, ** P < 0.01