Growth, development and productivity of meat and wool of ewes in relation to age at first insemination

Pyshenkin, A.D.; Lipskii, M.D.

Nauchnye Trudy Ukrainskoi Sel' skokhozyaistvennoi Akademii 241: 49


Accession: 000899505

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Ewes in 2 groups were mated at 20 to 21 or 8 to 11 months old. The first group was mated in January to February while the second group was in March to April. There was no difference between the 2 groups in bodyweight after lambing. Birthweight of the lambs from the first group exceeded that of the second by 15.8%, although that difference disappeared by weaning. There was no significant difference between the ewes in absolute or relative weights of heart, liver, lungs and kidneys. The offspring from both groups had similar growth rate, development and meat and wool yield.