| Autor: |
Kellems, R. O., Miner, J. R., Church, D. C. |
| Zdroj: |
Journal of Animal Science; March 1979, Vol. 48 Issue: 3 p436-445, 10p |
| Abstrakt: |
Several variables associated with the composition and management of bovine waste and various grains (corn, milo, barley) and their level of supplementation (25%, 50%, 75%) in rations were evaluated to determine their effect on initial volatilization of ammonia (NH3), amines, hydrogen sulfide (H2S), and odori-ferious compoundsDry matter (DM) and crude protein (CP) content of feces were not correlated (P>.10) with initial NH3volatilization. Urea content and specific gravity of urine were positively correlated (P<.10) with the NH3initial evolution rate. The grain source altered the pH of waste (P<.05) with milo producing the lowest pH and barley the highest. NH3volatilization showed a positive correlation (P<.05) with pH of waste.Urea from urine was the primary precursor of the initial NH3volatilized with maximum release of NH3occurring between the second and fifth day of storage. Volatile amines accounted for approximately .11% of the total nitrogen volatilized and were positively correlated (P<.01) with NH3evolution.Addition of sagebrush at 1% and 1.5% levels showed no modification (P>.10) of olfactory evaluation of the waste. Peppermint oil at the .25% level in the diet reduced (P<.05) the relative offensiveness associated with the waste. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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