The influence of parental age on the productive qualities of offspring sheep

The productivity of the progeny of Stavropol sheep from parental pairs of different ages was studied. To obtain offspring, 4 groups of parent pairs of 1.5- and 2.5-year-olds were formed. Offspring from pairs of “1.5-year-old uterus × 2.5-year-old sheep”, “2.5-yearold uterus × 2.5-year-old sheep” prevailed in live weight over analogues of “1.5-year-old uterus × 1.5-year-old sheep”, “2.5-year-old uterus × 1.5-year-old sheep” by 8.23; 3.23% and 6.29; 1.38% (p ≥ 0.99). Young animals from pairs of “2.5-year-old uterus × 1.5-yearold sheep” outperformed animals from combinations of “1.5-year-old uterus × 1.5-yearold sheep”, “2.5-year-old uterus × 1.5-year-old sheep”, “2.5-year-old uterus × 2.5-yearold sheep” by 5.26% (p ≥ 0,95), 3,77%, 2,08% (p ≥ 0.95), 4.04% (p ≥ 0.95), 2.39% and 2.8%. Young animals from pairs of “2.5-year-old uterus × 1.5-year-old sheep” had a higher wool yield than from pairs of “1.5-year-old uterus × 1.5-year-old sheep”, “1.5-year-old uterus × 2.5-year-old sheep”, “2.5-year-old uterus × 2.5-year-old sheep”, by 0.1%, 0.8% and 1.2% (p < 0.95). In the Volga region, for the productive use of Stavropol sheep, it is advisable to combine parental pairs of “1.5-year-old uterus × 2.5-year-old sheep” and “2.5-year-old uterus × 2.5-year-old sheep”.