The objective of this study was to evaluate the reproductive performance of adult bucks with different body condition induced exogenously to sexual activity. This study was carried out in the north of Mexico (26°N, 104°W) using 12 confined adult male goats, divided into 2 groups (n = 6 each) fed for 9 weeks (February–April 2016) on a low diet (LT group) containing 7.7% CP and 2.2 Mcal EM/kg and high (HT group), which contributed 11.9% CP and 2.5 Mcal EM/kg. To HT group was added 400 g/d commercial concentrate (18% CP) from the 5th to 9th week. Both groups received 25 mg of testosterone, via IM each third day for 3 weeks (13th April to May 1st). Body condition score (scale 1–4), body weight (kg) intensity of sexual odor (scale 1–3), scrotal circumference (cm) and seminal quality parameters: ejaculate volume (ml), sperm concentration (millions/mL), motility (scale 1–5) and viability (%) were evaluated weekly, this data were analyzed with an ANOVA test, in SAS 2002, through an experimental design of random blocks. On April 30 and May 1, a sexual behavior test was performed. Each male was evaluated individually quantifying sexual behaviors (search and consummation). These data were compared using a Chi-squared test. There were differences between groups (P < 0.05) in: body weight (58.5 ± 0.6 vs. 61.9 ± 0.6), body condition score (1.4 ± 0.03 vs. 2.4 ± 0.03), scrotal circumference (27.6 ± 0.7 vs. 30.1 ± 0.7), volume of ejaculate (0.53 ± 0.07 vs. 0.91 ± 0.07), sperm concentration (3322.7 ± 256.47 vs. 3787.2 ± 256.47), motility (1.7 ± 0.19 vs. 2.7 ± 0.19), viability (48.2 ± 4.7 vs. 68.5 ± 4.7). Nevertheless, the intensity of sexual odor was not different (0.18 ± 0.03 vs. 0.30 ± 0.03). Sexual behavior of search was lower (P < 0.001) in the LT group than the HT group (42.3% vs. 57.6%), as well as the consummation behavior (P = 0.006; 27.7% vs. 72.2%). We conclude that a good body condition score at the end of the sexual resting period in bucks, increased body weight, scrotal circumference, sperm quality and the sexual behavior which can be an important factor to induce female goats to ovulate through the male effect.