RFV is calculated by multiplying digestible dry matter by dry matter intake and then dividing by 1.29 (the expected digestible dry matter intake as % of body weight for full-bloom alfalfa)..
Similarly, it is asked, what is a good Rfv?
The best use of RFV is for selecting forages to be used in rations which require high nutrient density such as high producing dairy cows. Alfalfa with a RFV less than 140 should not be considered good enough for early lactation cows.
what is a good RFQ in hay? RFQ takes the digestible energy an estimate of animal intake to provide a single number to use for comparisons. Higher is better, so a hay with an RFQ score of 120 would be much better quality than hay that had a . RFQ is most useful for marketing or purchasing hay.
Also know, how do you calculate RFQ?
RFQ = (dIntake, % of BW) × (dTDN, % of DM) ÷ 1.23
- For grass samples.
- Whenever legume digestibility is not “average.” Since RFV is based on estimating dry matter digestibility from ADF, fiber digestibility of samples that deviate from that prediction are poorly estimated.
What does Rfv stand for?
Relative Feed Value
Related Question Answers
What is the difference between horse hay and cow hay?
Horse hay here is plain grasses- timothy, bermuda, etc. Cow hay is a bigger mix with clovers and alfalfa in it. They can also eat the plainer horse type hays, but like a variety more. Neither animal should be given only moldy, sour hay as their only food option.What is acid detergent fiber?
ADF stands for Acid Detergent Fiber and is the percentage of the plant material in the forage that is difficult for your horse to digest. This indigestible part contains cellulose, lignin, and silica. Basically ADF is a measure of the fiber concentration of the hay, shown as a percent.How much TDN does a cow need?
A 1,200-pound dry pregnant beef cow in her third trimester requires 1.9 pounds of crude protein and 12.6 pounds of total digestible nutrients (TDN, a measure of energy) or 7.8% crude protein and 52.5% TDN, based on hay intake of 26 pounds per day.What is Rfv medical?
RFV. Right Femoral Vein. showing only Science & Medicine definitions (show all 11 definitions)How do you read a hay analysis?
Reading a hay analysis. On a hay analysis there are two columns of numbers: “As Sampled” and “Dry Matter.” As Sampled reports nutrients in their natural state including water. While Dry Matter reports nutrients with the moisture removed. You can use either column for balancing your horse's diet but be consistent. 
