Analysis of stayability in South African Angus cattle using a threshold model.

Autor: Maiwashe, A.1 norman@arc.agric.za, Nephawe, K. A.2, Theron, H. E.1
Zdroj: South African Journal of Animal Science. 2009, Vol. 39 Issue 1, p55-60. 6p. 3 Charts.
Databáze: Academic Search Ultimate