共 12 条
- [1] Cochran W.G, 1957, STAT METHODS, V6th ed
- [5] MORAN ET, 1971, FEEDSTUFFS, V43, P28
- [8] Thomas O. P., 1973, Proceedings 1973 Maryland Nutrition Conference for Feed Manufactures, March 15-16, 1973.: Soares, J. H., Jr.
- [9] Nicholson, J. R.
- [10] Bossard, E. : Effective levels of sulfate supplementation in practical broiler diets., P117