共 193 条
- [8] Dietary Supplementation of Rumen-Protected Methionine, Lysine and Choline Improves Lactation Performance and Blood Metabolic Profile of Karan-Fries Cows [J]. Agric. Res., 4 (396-404): : 396 - 404
- [10] [Anonymous], 2001, Nutrient Requirements of Dairy Cattle, V7th revis