FIELD: agriculture. SUBSTANCE: medium-heavy and heavy eggs are placed for incubation with time intervals of 4 h under the following temperature conditions: at 30.0-38.3 C on the 1st-4th days; at 37.5-37.6 C on the 5th-13th days; at 37.2-37.3 C on the 14th-19 days. Eggs begin to be withdrawn after 510 h from the moment of placing medium-heavy eggs. This raises hatchability by 1.7-2.2% and survival rate by 1.9-2.2%. EFFECT: higher hatchability of eggs. 1 tbl
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