Compositions for non-surgical prevention of boar taint and aggressive behavior

A method to inhibit testicular development in a pig, which prevents pubertal rise in blood and tissue androgens comprising injecting in said pig a combination of an estrogen, an androgen and a carrier neonatally,

• wherein the combination is selected from the group consisting of:
• Revalor™-G (40.0 mg trenbolone acetate;
• 8.0 mg estradiol with a slow releasing carrier/matrix);
• Revalor™-XS (200.0 mg trenbolone acetate;
• 40.0 mg estradiol with a slow releasing carrier/matrix);
• Revalor™-XH (200.0 mg trenbolone acetate;
• 20.0 mg estradiol with a slow releasing carrier/matrix);
• Revalor™-200 (200.0 mg trenbolone acetate;
• 20.0 mg estradiol with a slow releasing carrier/matrix);
• Revalor™-IS (80.0 mg trenbolone acetate;
• 16.0 mg estradiol with a slow releasing carrier/matrix);
• Revalor™-S (120.0 mg trenbolone acetate;
• 24.0 mg estradiol with a slow releasing carrier/matrix);
• Revalor™-IH (80.0 mg trenbolone acetate;
• 8.0 mg estradiol with a slow releasing carrier/matrix):
• Revalor™-H (140.0 mg trenbolone acetate;
• 14.0 mg estradiol with a slow releasing carrier/matrix);
• Component E-H™ (10 mg estradiol benzoate and 200 mg testosterone propionate with a slow releasing carrier/matrix);
• Component TE-G™ (8 mg estradiol and 40 mg trenbolone acetate with a slow releasing carrier/matrix);
• Component TE-S™ (24 mg estradiol and 120 mg trenbolone acetate with a slow releasing carrier/matrix);
• Component TE-H™ (14 mg estradiol and 140 mg trenbolone acetate with a slow releasing carrier/matrix);
• Component TE-IS™ (16 mg estradiol and 80 mg trenbolone acetate with a slow releasing carrier/matrix);
• Component TE-IH™ (8 mg estradiol and 80 mg trenbolone acetate with a slow releasing carrier/matrix);
• Component TE-200™ (20 mg estradiol and 200 mg trenbolone acetate with a slow releasing carrier/matrix);
• Synovex™ One Grass (150.0 mg trenbolone acetate;
• 21.0 mg estradiol benzoate with a slow releasing carrier/matrix);
• Synovex™ One Feedlot (200.0 mg trenbolone acetate;
• 28.0 mg estradiol benzoate with a slow releasing carrier/matrix);
• Synovex™ Choice (100.0 mg trenbolone acetate;
• 14.0 mg estradiol benzoate with a slow releasing carrier/matrix);
• Synovex™ Plus (200.0 mg trenbolone acetate;
• 28.0 mg estradiol benzoate with a slow releasing carrier/matrix);
• and
• Synovex™ H (200.0 mg Testosterone propionate;
• 20.0 mg estradiol benzoate with a slow releasing carrier/matrix).