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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