Ammonia Versus Urea-Treated Silages with Varying Urea in Concentrate

Huber, J.T.; Bucholtz, H.F.; Boman, R.L.

doi:10.3168/jds.s0022-0302(80)82889-x

Cited by 10 publications

(4 citation statements)

References 5 publications

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“…The inclusion of urea in silages compromised their aerobic stability. This might have happened by means of supplying a substrate to aerobic microorganisms and buffering capacity by supplying ammonium as a bio-hydrolysis by-product that might increase the pH levels and prompt mold activity [ 1 , 45 ]. Concentrations of lactic and acetic acids are considered the most pronounced factors to affect aerobic stability, especially when heterofermentative Lactobacilli inoculum is added to silages [ 3 , 30 , 46 ].…”

Section: Discussionmentioning

confidence: 99%

“…Some of the plant enzymes function at a higher pH environment (pH 7–8; [ 49 ]). However, at later stages of ensiling when pH was lowest in both silages, there was an advantage for CP content in corn silage, probably because of intact urea and biosynthesis [ 1 , 45 ]. However, the latter was not supported by the profile of TAAs in corn silage.…”

Section: Discussionmentioning

confidence: 99%

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The Effect of Microbial Inoculum and Urea Supplements on Nutritive Value, Amino Acids Profile, Aerobic Stability and Digestibility of Wheat and Corn Silages

Wagali,

Pelech,

Sabastian

et al. 2023

Animals

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Wheat and corn silages are widely used as ruminant feed in Israel due to their availability and cost-effectiveness. To ensure long-term preservation without compromising nutritional quality, effective methods must be employed. The inclusion of additives during harvest and ensiling can enhance efficiency and address preservation challenges. In the current study, the effects of microbial inoculum (MI) and urea on the chemical composition, amino acid profiles, aerobic stability, and in vitro digestibility of wheat and corn silages were investigated. Samples of wheat and corn were subjected to four treatments: control, MI, urea and a combination of MI + urea. The treatments were ensiled in anaerobic conditions and opened after 1, 7, 14 or 28 days. The results showed that additives improved the quality parameters of wheat and corn silages. The inclusion of MI produced the most aerobically stable silages. The inclusion of urea in silages decreased aerobic stability. Additives improved in vitro cell wall carbohydrates’ digestibility in both silages and was the best when MI was combined with urea. These results imply that additives could be incorporated in silages to enhance their nutritional value, aerobic stability and digestibility. Nonetheless, increased CP content with additives was not accompanied with a parallel increase in amino acids’ content in corn silage.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The Effect of Microbial Inoculum and Urea Supplements on Nutritive Value, Amino Acids Profile, Aerobic Stability and Digestibility of Wheat and Corn Silages

Wagali,

Pelech,

Sabastian

et al. 2023

Animals

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“…The use of alkalis such as NaOH, NH, and urea for ensiling has been reported before (Han 1978;Huber et al 1979Huber et al , 1980. However, no indication was made on the use of alkaliadapted inocula for purposes of ensilage.…”

Section: Discussionmentioning

confidence: 99%

Ensilage of ammonia‐treated straw in combination with whey by means of alkaline‐adapted lactic acid bacteria

Suhaimi

Bruyneel

Verstraete

1987

Journal of Applied Bacteriology

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A lactic acid‐producing bacterial association, adapted to alkaline conditions up to pH 10˙0, was tested for its effectiveness as an inoculum for ammonia‐treated straw combined with whey. The association proved capable of lowering the pH from 8˙0 to 5˙0 within 2 d, as opposed to about 4 d by the individual populations. In the silage inoculated with the association, the lactic acid content was 98 mg/g dry matter (DM) and no butyric acid was formed. In the non‐inoculated control, only 40 mg lactic acid/g DM was formed but the butyric acid amounted to 45˙5 mg/g DM. The association appeared to counteract clostridial growth effectively.

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“…Equal or higher milk production was observed by Huber et al (1975) with dairy cows receiving ammonia-treated silages than those fed control or urea-treated silages, particularly at high intakes of NPN. Goering and Van Soest (1970).…”

Section: Maismentioning

confidence: 94%

Apparent Digestibility and Nutritional Value of Urea or Ammonia-Solution-Treated Corn Silages for Lactating Holstein Cows and Mature Sheep

Bareeba¹,

Ingalls²,

McKIRDY³

et al. 1983

Can. J. Anim. Sci.

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Corn silages were treated at harvest with 0.5% urea or 1.3–2.2% ammonia-molasses-mineral solution. Apparent recoveries of added nitrogen in the corn silages ranged from 95 to 100% in both experiments. Water-insoluble N and lactic acid contents were increased in the treated silages as compared to the control. Four diets containing either (1) grass-legume (GL) silage (38% DM) + medium grain (MG); (2) 0.5% urea-treated corn (CU) silage (31% DM) + MG; (3) 2.2% ammonia-treated corn (AC) silage (32% DM) + MG; (4) AC silage + low grain (LG) were fed to eight Holstein cows in a latin square design. Silage DM consumption, milk production and milk composition were not different (P > 0.05) among treatments. Reducing the level of grain feeding from 32 to 23% of the diet with ammonia-treated corn silage resulted in a decrease (P < 0.05) in total DM consumption, with no apparent effect on milk production or composition, at the levels of production observed in this study. There were significant (P < 0.05) differences among treatments in molar percentages of acetic, propionic and butyric acids in rumen fluid. However, no differences were observed in milk fat or solid nonfat contents of the cows receiving the four experimental diets. Sheep digestion studies carried out on the above silages indicated apparent digestibilities of DM, CP and energy were lower (P < 0.05) for the GL silage compared with the UC or AC silages (exp. 1), whereas there were no differences in apparent digestibilities of DM and energy of untreated corn silage or NPN-treated silages (exp. 2). However, crude protein digestion coefficient was lower (P < 0.05) for untreated corn silage compared with the three NPN-treated corn silages. The present studies failed to show a beneficial effect of treating corn silage with an ammonia, molasses and mineral solution rather than urea on silage fermentation and animal performance. Key words: Dairy cows, sheep, nitrogen balance, ammonia treatment, corn silage

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Ammonia Versus Urea-Treated Silages with Varying Urea in Concentrate

Cited by 10 publications

References 5 publications

The Effect of Microbial Inoculum and Urea Supplements on Nutritive Value, Amino Acids Profile, Aerobic Stability and Digestibility of Wheat and Corn Silages

The Effect of Microbial Inoculum and Urea Supplements on Nutritive Value, Amino Acids Profile, Aerobic Stability and Digestibility of Wheat and Corn Silages

Ensilage of ammonia‐treated straw in combination with whey by means of alkaline‐adapted lactic acid bacteria

Apparent Digestibility and Nutritional Value of Urea or Ammonia-Solution-Treated Corn Silages for Lactating Holstein Cows and Mature Sheep

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