Table 3 Mean ± SE area under response curve of LH, androstenedione, testosterone, and total estrogens in Group I (14–16 months), Group II (9–12 months), and Group III (6–8 months) Holstein × Tharparkar bull calves

67.7 ± 16.4^a

69.4 ± 15.9^a

39.7 ± 19.4^a

18.2 ± 4.32^a

8.32 ± 2.93^{a, b}

0.91 ± 0.35^{b, c}

11.4 ± 2.22^a

3.63 ± 0.53^b

2.8 ± 0.59^{b, c}

115 ± 29.8^a

169 ± 22.5^a

128 ± 44.9^a