Identifying the ”efficient” beef cow with Dr. Greg Penner

00:00 – 2:18   Welcome and Introductions 

2:19 – 4:09   The importance of feed efficiency

4:10 – 6:17 Explaining Residual Feed intake

6:18 – 8:04 Measuring feed efficiency in research trials

8:05 – 9:28 Limitations of feed efficiency measurements in beef cow systems

9:29 – 12:27 Describing an alternative system for ranking beef cow efficiency

12:28 – 15:18 Variability in the indicators of efficiency and why they were chosen

15:19 – 7:30 Evaluating the digestive physiology in high efficiency and low efficiency cows

17:31 - 19:45   Main differences between HE and LE cows

19:46 – 23:37   Describing ruminal differences between HE and LE cows

 23:38 – 25:00   Limitations and advantages of this research approach

25:01 – 27:25 How to use this concept to select efficient cows on your own ranch

27:26 – 29: 51   Wrap up and conclusions