FIELD: agriculture, biotechnology. SUBSTANCE: invention relates to vaccine that has a peptide conjugate of the formula: Pyro-Glu-X-Ser-Try-Y-Leu-Arg-Pro-Z where: X - Try or His-Try; Y - D-Ala or D-Lys and Z - NHC2H5 or -OH with tetra- and/or octamer of lysine, or bovine serum albumin in the parent or capsulated form. Stearate or aluminium hydrogel is used as an acceptable vehicle. Vaccine decreases sexual reflexes and excitement of animals but retains or increases the growth rate. EFFECT: enhanced effectiveness of vaccine. 4 cl, 3 tbl
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