FIELD: biotechnology.
SUBSTANCE: invention relates to compositions and methods for stimulating reproductive behavior and the efficiency of reproduction and productivity of pigs, such as domestic pigs. Composition may contain at least one steroid hormone and a heterocyclic aromatic compound.
EFFECT: method comprises administering the pheromone composition to the pig over particular period of time.
14 cl, 6 tbl, 2 ex, 4 dwg
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