Performance of sheep offered ammonia, or urea‐calcium hydroxide treated rice straw as an only feed

El-Seed, Abdel Nasir M. A. Fadel

doi:10.1111/j.1740-0929.2004.00206.x

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…Positive NB was also reported in sheep fed ammonia treated rice straw (Elseed, 2004) and urea treated wheat straw retaining 1.67 g N per day (Sahoo et al, 2002). Similar to the present findings, Yankasa bucks supplemented with ficus foliage as a protein source on urea treated maize stover has improved (117.7% over unsupplemented) protein retention (Abdu et al, 2012).…”

Section: Discussionsupporting

confidence: 87%

Effect of wheat straw urea treatment and Leucaena leucocephala foliage hay supplementation on intake, digestibility, nitrogen balance and growth of lambs

Yadete¹

2014

Int. J. Livest. Prod.

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This study evaluated the effect of wheat straw urea treatment and Leucaena leucocephala (LL) foliage hay supplementation on intake, digestibility, nitrogen balance and growth of Ethiopian highland sheep. Thirty-six yearling male lambs were randomly allotted, in randomized complete design, to six dietary treatments:-untreated wheat straw (T1); urea treated wheat straw (T2); T2 plus 100, 200, 300 g LL in T3, T4, T5 respectively, and T1 plus 300 g LL per lamb/day (T6). The lambs were fed for three months. Urea treatment increased straw crude protein (CP) content (g kg-1 DM) (32 vs. 60) and decreased neutral detergent fiber (NDF) (807 vs. 743), acid detergent fiber (ADF) (523 vs. 504) and acid detergent lignin (ADL) (75 vs. 70). Straw intake was increased (P<0.001) with urea treatment and supplementation. Total DM intake (g/day) peaked (P<0.001) in T5 (750) compared to T6 (546.9). Lambs in T2 gained 10.7, while lambs in T1 lost 33.9 g/day. The highest average daily gain (47.2 g) was achieved in T5. Digestibility of DM, organic matter (OM) and CP was higher (P<0.001) in T2 than T1. Supplementation increased the digestibility of DM, CP and Ash significantly. Digestibility of nutrients, except CP, was higher (P<0.001) in T5 than T6. Nitrogen balances (g/day) were positive, except in T1 (-0.71 g/day) and increased (P<0.001) with supplementation. Total nitrogen excretion (g/day) was higher (P<0.001) in T2 (4.64) than T1 (2.97) and increased with supplementation. It is concluded that combined use of urea treatment and LL supplementation improves feed utilization and lambs' performance better than using them separately.

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Section: Discussionsupporting

confidence: 87%

Effect of wheat straw urea treatment and Leucaena leucocephala foliage hay supplementation on intake, digestibility, nitrogen balance and growth of lambs

Yadete¹

2014

Int. J. Livest. Prod.

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“…Moreover, Fadel Elseed () suggested that the feed value of low‐quality roughage can be improved by alkali treatment. For example, sodium hydroxide has been shown to be effective for cleaving esterified bonds within the plant cell wall architecture and improving the ruminal digestion of cereal straw (Sundstol ).…”

Section: Introductionmentioning

confidence: 99%

Effects of adding urea on fermentation quality of pruned persimmon branch silage and its digestibility, preference, nitrogen balance and rumen fermentation in beef cattle

Yang

Zang

et al. 2013

Animal Science Journal

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Four cattle were used in a 4 × 4 Latin square design experiment to study digestibility, ruminal fermentation, nitrogen retention and preference of ensiling pruned persimmon branch (PPB) chips treated with urea. After 60 days of ensiling, urea-treated PPB showed higher (P < 0.05) pH, acetic acid and ammonia-N levels than no-urea PPB. Both urea-treated PPB and rice straw diets showed higher (P < 0.05) apparent digestibility and digestible nutrient content in cattle than no-urea PPB diet. Neither mold nor yeast was detected in any urea-treated PPB. Urinary and fecal excretion as well as nitrogen retention in cattle fed urea-treated PPB were higher (P < 0.05) than in those fed no-urea PPB and rice straw. With the exception that ruminal ammonia-N levels in cattle fed urea-treated PPB were higher (P < 0.05) than in those given no-urea PPB and rice straw, ruminal pH, volatile fatty acid concentrations, and the acetic : propionic acid ratio of rumen content were unaffected by diets. The rank order of preference was rice straw > low-urea > no-urea > high-urea. The results suggested that urea treatment of PPB inhibited growth of mold and yeast during silage storage, enhanced its digestibility and had nutritive value almost equivalent to that of rice straw.

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“…Moreover, the previous studies have shown that the feed value of low‐quality roughage can be improved in the presence of ammonia, while safe and convenient methods to further improve feed value are needed (Pradhan et al. 1996a,b; Fadel Elseed 2004). Urea treatment is considered a safe method with a similar effect of improving the forage value of low‐quality roughage (Nishino 2004).…”

Section: Introductionmentioning

confidence: 99%

Effect of cellulase and urea addition on in situ degradability and preference for pruned persimmon branch chips in cattle

et al. 2011

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This study examined the use of pruned persimmon branches (PPBs) as feed for effective use of farm waste and environmental conservation. Because cellulase can hydrolyze the fibrous components in forages and increase its digestibility, and urea can improve the forage value of low‐quality roughage, PPBs were treated with cellulase or urea in an attempt to obtain a high quality roughage. The experimental treatments included PPBs without additive, with cellulase (0.75% dry matter [DM] basis) or urea (2.0% DM basis) and rice straw as a common roughage in Japan. In situ digestion and preference trials were conducted in cattle to examine the feed characteristics of the four feeds. Crude protein of urea‐treated PPBs was 7.1% on a DM basis, which was higher than that in the other three experimental feeds. Fibrous components were lower in urea‐treated PPBs than in untreated and cellulase‐treated PPBs. The DM disappearance rates of the three kinds of PPBs changed remarkably less than did those of rice straw from the start of the experiment to 72 h. There was little difference in DM disappearance among the three kinds of PPBs. The relative preference was 100% for rice straw, 75% for urea‐treated PPBs, 35% for cellulase‐treated PPBs, and 29% for untreated PPBs. Preference was significantly higher for rice straw and urea‐treated PPBs than for the other two PPBs. The results suggest that, in preserved PPBs, urea supplementation improves preference for the feed in cattle, and cellulase and urea supplementation increases effective degradability.

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Performance of sheep offered ammonia, or urea‐calcium hydroxide treated rice straw as an only feed

Cited by 5 publications

References 12 publications

Effect of wheat straw urea treatment and Leucaena leucocephala foliage hay supplementation on intake, digestibility, nitrogen balance and growth of lambs

Effect of wheat straw urea treatment and Leucaena leucocephala foliage hay supplementation on intake, digestibility, nitrogen balance and growth of lambs

Effects of adding urea on fermentation quality of pruned persimmon branch silage and its digestibility, preference, nitrogen balance and rumen fermentation in beef cattle

Effect of cellulase and urea addition on in situ degradability and preference for pruned persimmon branch chips in cattle

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