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For 1112 Polwarth and 380 Corriedale lambs born in Brazil in 1979-87, birth weight averaged 3.54 and 3.79 kg respectively for males and 3.35 and 3.49 kg for females, the differences between the breeds and sexes being significant. Birth weight was significantly affected by year of birth and age of...

Roda, D. S.; Santos, L. E. dos; Cunha, E. A. da
Departmento da Producao Animal, Secretaria da Agricultura, Industria e Comercio, Sao Paulo, Brazil
Boletim de Indústria Animal, 1995, 52, 1, pp 67-70

In a large semifine-wooled mutton-wool flock, mortality to 20 days of age ranged from 63.5% for single-born ram lambs weighing <1.5 kg at birth to 4.3% for single-born ewe lambs weighing 4.1-4.5 kg. The genetic correlation of body weight of the dams at 100 days of pregnancy with birth weight of...

Khamitsaev, R. S.; Kalabaev, Z. M.
Ovtsevodstvo, 1990, No. 4, pp 33-34