FIELD: animal science, veterinary obstetrics.
SUBSTANCE: cows should be subcutaneously injected with DSP (denaturated suspended placenta) at the dosage of 20 ml/cow/d during 10 d, not more, before delivery or immediately after delivery. The innovation enables to shorten the terms of service period at optimal fertilization in cows due to increasing the level of adaptational-metabolic homeostasis and activating neuroendocrine regulation of reproductive cyclic recurrence.
EFFECT: higher efficiency.
4 dwg, 7 tbl
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