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Table 7 Least square means (±SE) of parameters of lactation curve in different season of calving

From: Effects of season and age at first calving on genetic and phenotypic characteristics of lactation curve parameters in Holstein cows

Season of calving a b c Peak time Peak yield Part1 Part2 Part3 Milk 305 Persis 1 % Persis 2 %
Spring 15.47 (0.33) 0.22 (0.00) 0.003 (0.00) 67.38 (1.25) 29.31 (0.23) 2645.67 (21.31) 2585.91 (24.54) 2190.51 (28.84) 7422.09 (68.75) 98.02 (0.48) 83.15 (0.79)
Summer 15.30 (0.32) 0.22 (0.00) 0.003 (0.00) 69.00 (1.18) 29.30 (0.22) 2644.91 (20.19) 2594.95 (23.25) 2219.49 (27.32) 7459.36 (65.13) 98.21 (0.45) 84.00 (0.75)
Autumn 15.55 (0.32) 0.22 (0.00) 0.003 (0.00) 69.14 (1.20) 29.97 (0.22) 2706.0 (20.41) 2648.56 (23.51) 2251.13 (27.62) 7605.77 (65.85) 97.94 (0.46) 83.35 (0.76)
Winter 15.68 (0.34) 0.21 (0.00) 0.003 (0.00) 67.48 (1.28) 29.88 (0.24) 2683.00 (21.82) 2594.29 (25.13) 2196.36 (29.53) 7473.66 (70.39) 96.90 (0.494) 82.18 (0.81)