Effect of Hormone Variety on Superovulation Result of Young Holstein Cows
不同药物对荷斯坦青年母牛超排效果的研究
Effect of Chromium-lysine Supplementation on Lactation Performance and Blood Parameters of Holstein Cows under Heat Stress
热应激条件下日粮补充赖氨酸铬对泌乳期奶牛生产性能及血液参数的影响
Linear Assessment of General Appearance of Holstein Cows in Huainan Area
淮南地区荷斯坦奶牛一般外貌的线性评定
Relationship Between the Parity of Chinese Holstein Cows and the Contents of Progesterone and Oestradiol in Their Milk
奶牛产犊胎次与乳中孕酮、雌二醇含量的关系
Effects of Different Corn Processing Methods on Lactational Performance and Nutrient Digestibilities of Lactating Holstein Cows
玉米处理方法对泌乳牛产乳性能和养分消化的影响
The Relationship Between Afterbirth Non-exuviation of Chinese Holstein Cows and the Contents of Progesterone and Oestradiol in Their Milk
奶牛胎衣不下与乳中孕酮、雌二醇含量的关系