Topics:
Animal Nutrition, Animal Refresher
Guidelines for Urea Treatment in Feed
Which of the following is true about urea treatment of feed:
- Straw is treated @ 4% of straw
- Succulent roughage (eg. silage) is treated @ 0.5% of wet material
- Urea is incorporated up to 3% of the concentrate
- Urea is incorporated up to 1% of the total dry matter of ration
- All the above — Correct Answer
Explanation:
Correct Answer: All the above
All four statements about urea treatment of feed are correct and represent the standard scientifically established guidelines for safe and effective NPN/urea application in ruminant feeding and feed processing.
Urea Treatment Guidelines — Complete Reference Table
| Feed Type | Urea Treatment Level | Reference |
|---|---|---|
| Dry roughage (straw) | 4% of straw DM (100 kg straw + 40 L water + 4 kg urea) | Water:Urea = 10:1 |
| Succulent roughage (silage) | 0.5% of wet material | — |
| Concentrate mixture | Up to 3% of total concentrate | Max safe level |
| Total ration (DM basis) | Up to 1% of total DM | Standard ration limit |
Additional Guidelines for Urea Safety
- N:S ratio in diet should be 10:1 for optimum urea utilization.
- Starch:Urea ratio should be 10:1 (1 kg starch per 100 g urea).
- Rumen adaptation period: 2–4 weeks before full urea level is introduced.
- Never feed urea to animals with CP > 13% in diet or rumen NH₃ > 5–8 mg/100 ml.
Why Other Options Are Wrong
- Each individual statement (a, b, c, d) is correct — so All the above is the only complete answer.
