Title :
Hormonal regulation of the onset of puberty in purebred and crossbred Holstein and Jersey heifers.
Author :
R. M. Akers استاد مشاور , B. G. Cassell استاد مشاور , R. L. Nebel استاد راهنما
University :
Virginia Polytechnic Institute and state University
Major :
Master of Science )Dairy Science(
Keyword :
Holstein X Jersey , crossbreeding , GNRH , puberty
