共 35 条
[22]
SAWYER GJ, 1978, THESIS U W AUSTR
[23]
SCHINKEL PG, 1963, WLD C ANIM PROD, V1, P199
[24]
SHORT RV, 1972, REPRODUCTION MAMMALS, V3, P42
[27]
STUDIES OF ZINC NUTRITION IN SHEEP .I. RELATION OF ZINC TO GROWTH TESTICULAR DEVELOPMENT, AND SPERMATOGENESIS IN YOUNG RAMS
[J].
AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH,
1969, 20 (05)
:889-+
[28]
Underwood EJ, 1977, TRACE ELEMENTS HUMAN, P196
[30]
WILLIAMS RB, 1973, P NUTR SOC, V32, pA3