This feeding trial was designed to investigate two separate questions. The first question is, “What are the effects of substituting two non-fiber carbohydrate (NFC) sources at two rumen-degradable protein (RDP) levels in the diet on apparent total-tract nutrient digestibility, manure production and nitrogen (N) excretion in dairy cows?”. This is relevant because most of the N ingested by dairy cows is excreted, resulting in negative effects on environmental quality. The second question is, “Is phenotypic residual feed intake (pRFI) correlated with feed efficiency, N use efficiency, and metabolic energy losses (via urinary N and enteric CH4) in dairy cows?”. The pRFI is the difference between what an animal is expected to eat, given its level of productivity, and what it actually eats. The goal was to determine whether production of CH4, urinary N or fecal N is a driver of pRFI.
This experiment was conducted at the Dairy Cattle Center of University of Wisconsin-Madison. The use and care of animals was approved by the University of Wisconsin-Madison Research Animal and Resource Committee.
- Data from: Starch and dextrose at 2 levels of rumen-degradable protein in iso-nitrogenous diets: Effects on lactation performance, ruminal measurements, methane emission, digestibility, and nitrogen balance of dairy cows.xlsx Dataset data dictionary
This is the data dictionary for the starch and dextrose feeding trial...
MD5:Explore Data61.81 KB - Data from: Starch and dextrose at 2 levels of rumen-degradable protein in iso-nitrogenous diets: Effects on lactation performance, ruminal measurements, methane emission, digestibility, and nitrogen balance of dairy cows.xlsx
These are the data files for the starch and dextrose feeding trial...
MD5:Explore Data183.99 KB
Field | Value |
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Tags | |
Modified | 2023-06-20 |
Release Date | 2019-03-04 |
Identifier | f56614bf-ec32-41db-a33e-f0069ff4edc4 |
Publisher | Ag Data Commons |
Spatial / Geographical Coverage Location | S8822 Sunset Dr, Prairie Du Sac, WI 53578 |
Temporal Coverage | January 1, 2017 to December 31, 2017 |
License | |
Contact Name | Barford, Carol |
Contact Email | |
Public Access Level | Public |