TY  - BOOK
AU  - Solís Ramírez, José
TI  - Direct and correlated responses to selection for high or low ultrasonic backfat depth in southdown sheep
PY  - 1988///
CY  - Massey
PB  - El autor
KW  - Ganado lanar
KW  - Ultrasonido
N1  - Thesis (Master of agricultural Science in animal Science) -- Massey University
ER  -