Effect of diferences in live weight on feed requirements of pregnant non-lactating grazing dairy cows /
por J Guadalupe García Muñiz
- Palmeston North, N.Z. : El autor, 1994
- 133 h.
- .
Thesis (Master of Agricultual Science in Animal Science) -- Massey University
167235
Ganado lechero--Alimentos y alimentación Ganado lechero--Producción