Effects of calving ease (eutocia vs. dystocia) and first calving age on the lactation curve parameters, calf birth weight, and length of the first calving interval (CI) in Holstein heifers (n = 115,291).

泌乳性能分析

Effects of calving ease (eutocia vs. dystocia) and first calving age on the lactation curve parameters, calf birth weight, and length of the first calving interval (CI) in Holstein heifers (n = 115,29

NIAID Data Ecosystem60

LS Mean and standard error of milk yield and milk components for lying and sleep deprived cows during 24 h baseline, and treatment days as well as the 4 days following treatment (excluding treatment day for milk production and days 2 to 4 for milk components).

奶牛睡眠剥夺效应

泌乳性能分析

P-values reflect days compared to baseline.

NIAID Data Ecosystem50

Full-lactation performance (mean and SEM) of cows divided into two groups, with low residual feed intake (LRFI) (n = 18) or high RFI (HRFI) (n = 18) according the NRC (2001) equation (for parameter abbreviations, see main text).

牛饲料效率

泌乳性能分析

Full-lactation performance (mean and SEM) of cows divided into two groups, with low residual feed intake (LRFI) (n = 18) or high RFI (HRFI) (n = 18) according the NRC (2001) equation (for parameter ab

NIAID Data Ecosystem30

Effects of calving ease (eutocia vs. dystocia) and first calving age on partial and 305-d lactation performance (n = 115,291).

资源简介：

Effects of calving ease (eutocia vs. dystocia) and first calving age on partial and 305-d lactation performance (n = 115,291).

资源简介：

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