Urea supplementation compared with pretreatment. 1. Effects on intake, digestion and live-weight change by sheep fed a rice straw

Djajanegara, A.; Doyle, PT

doi:10.1016/0377-8401(89)90126-0

Cited by 32 publications

(15 citation statements)

References 25 publications

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“…Similar to the alkali treatment, urea decreased the NDFom content of URS, but the ADFom content was not affected. The effects of urea treatment of wilted rice straw on its chemical composition were similar to those previously found for urea treatment of dry rice straw (Djajanegara and Doyle 1989;Nakashima et al 1991).…”

Section: Resultssupporting

confidence: 86%

Effects of lactic acid bacteria and urea treatment on fermentation quality, digestibility and ruminal fermentation of roll bale rice straw silage in wethers

et al. 2012

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The digestibility, nitrogen retention and ruminal fermentation of dry rice straw (DRS), untreated rice straw silage (NRS), lactic acid bacteria (LAB) treated rice straw silage (LRS) and urea treated rice straw silage (URS) were compared in a feeding trial with wethers supplemented with concentrate. Both NRS and LRS provided good fermentation quality although the lactic acid content in LRS was higher than in NRS (P < 0.05). The digestibility of the feed component did not differ among DRS, NRS and LRS treatments; however, the digestibility of crude protein (CP), acid detergent fiber (ADFom), neutral detergent fiber (NDFom) and energy increased in the URS treatment (P < 0.05). With the increase in digestibility, the nutritive values of digestible crude protein (DCP) and digestible energy (DE) also increased in URS treatment (P < 0.05). The high urinary excretion of nitrogen (N) with URS treatment did not influence its improved N retention compared with the other treatments (P < 0.05). The higher ruminal total volatile fatty acid (VFA) and ratio of acetate to propionate (A:P) in ruminal fluid of wethers following URS treatment (P < 0.05) indicated that the urea treatment resulted in effective ruminal fermentation. These results show that although LAB treatment can improve fermentation quality, it had no effect on the digestibility of feed components. Urea was an effective treatment for improving digestibility, N retention and ruminal fermentation.

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Section: Resultssupporting

confidence: 86%

Effects of lactic acid bacteria and urea treatment on fermentation quality, digestibility and ruminal fermentation of roll bale rice straw silage in wethers

et al. 2012

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“…In the present experiments, even when supplemented with urea and minerals, the basal rice-straw diet (R) failed to provide enough energy for body weight maintenance, a situation similar to that with sheep (Djajanegara & Doyle 1989). As assessed by concen-trations of rumen ammonia and starch remaining in residues, supplements appeared to be readily accepted by buffaloes, whereas those containing urea and urea/grain supplements (diets R and RG) were largely rejected by cattle in contrast to those also containing sunflower seed meal, which were readily accepted.…”

Section: Discussionmentioning

confidence: 56%

Intake and digestion in swamp buffaloes and cattle. 3. Comparisons with four forage diets, and with rice straw supplemented with energy and protein

Kennedy¹

1995

J. Agric. Sci.

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S U M M A R YIntake and digestion by swamp buffaloes {Bubalus bubalis) and crossbred cattle (Bos indicus x B. taunts) of a range of diets were measured in two experiments conducted in north Queensland in 1988. In Expt 1, four animals of each species were offered rice straw ad libitum with a supplement of minerals and urea. The four dietary treatments were (i) no concentrates, (ii) cracked rice grain (900 g/day), (iii) cracked rice grain (900 g/day) plus sunflower seed meal (900 g/day) and (iv) as for (iii) but with 50 % of the sunflower seed meal treated with formaldehyde solution. In Expt 2, the same animals were offered two legumes, lablab (Lablab purpureus) and verano (Stylosanthes hamata cv. verano), and two grasses, sorghum (Sorghum bicolor x S. sudanense) and pangola grass (Digitaria eriantha). In Expt 1, voluntary intake of organic matter of buffaloes was 1-22 that of cattle. Concentrate supplementation increased organic matter digestibility and total intake, but did not affect straw intake. Intake of supplements by cattle was poor in the absence of sunflower seed meal. In Expt 2, intake and digestibility was similar in both species but was higher in animals given sorghum compared with the other forages. Total time spent chewing for both species and all diets ranged between 163 and 244 min/kg intake of plant cell wall constituents. The fractional rate of fluid flow from the reticulorumen and the concentration of propionic acid in the rumen fluid of buffaloes were consistently higher than in cattle in both experiments. Cotton and rice straw, placed in polyester bags in situ in the reticulorumen, were more extensively fermented in buffaloes than in cattle in Expt 1. In contrast, there were no differences between animal species in fermentation rates of cotton and ground diets in situ in Expt 2, but a relationship was observed between the relative fermentation of cotton and the relative digesta retention times in the reticulorumen in the two animal species. Microbial biomass, estimated as microbial dry matter per kg dry matter in the reticulorumen, was less (P < 005) in buffaloes than in cattle in Expt 1; higher concentrations of protozoa were observed in buffaloes than in cattle in Expt 2. Digesta load in the reticulorumen of buffaloes was c. 0-88 that of cattle. In Expt 1, digesta load was inversely related to digestible organic matter intake. The results were consistent with the hypothesis that energy metabolism and digesta load in the reticulorumen interact in the regulation of roughage intake, but it appeared that the lower loads measured in both species in Expt 2 indicated the operation of an unidentified limitation to intake. anc * m ' n e r a ' s ' but there was no difference in the amount of dietary protein fermented in the RR Recent studies (Kennedy et al. 1992a, b) using rice (Kennedy et al. 1992a). Additional protein in the straw and two mature grasses have revealed lower form of meat meal was also digested to a similar digestibility in swamp buffaloes than in cattle, extent in both species (Kenne...

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“…Hossain (2010) also found higher digestibility of CP in group receiving 2.50% midden soil and 2.50% chick pea as a source of urease with urea solution. Dajayanegra and Doyle (1989) reported both urea treatment and urea supplementation increased intake, rate of digestion and digestibility of nutrients. Significantly higher (p<0.01) CF digestibility was found in diet D containing 3.0% urea + 5.0% midden soil treated straw (68.29%) than those in diet C containing 3.0% urea + 4.0% midden soil treated straw (66.11%), diet B containing 3.0% urea + 3.0% midden soil treated straw (65.19%) and diet A containing 3.0% urea + 2.0% midden soil treated straw (64.02%).…”

Section: Apparent Digestibility Of Nutrientmentioning

confidence: 99%

Improving quality of rice straw through treatment with urea and midden soil for large animals

Akter

Khan

Akbar

et al. 2013

Bang. J. Anim. Sci.

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Twelve indigenous growing cattle (live weight 130.00 ± 1.67 kg) were selected and divided into four groups having three animals in each group. Group A, B, C and D supplied 3.0% urea + 2.0% midden soil, 3.0% urea + 3.0% midden soil, 3.0% urea + 4.0% midden soil and 3.0% urea + 5.0% midden soil treated rice straw. In addition to this all the animals were supplied 2 Kg green grass, 450 g concentrate mixture and 40 g salt per 100 kg body weight. Rice straw treated with 3.0% urea+ 2.0% midden soil resulted an improvement in crude protein content of rice straw from 3.30 to 7.08% which was further increased by 7.40, 7.90 and 8.14% treatment with 3.0% urea + 3.0% midden soil, 3.0% urea + 4.0% midden soil and 3.0% urea + 5.0% midden soil respectively. The addition of 5.0% midden soil as a urease source with 3.0% urea (D) treated rice straw not only significantly (P<0.01) increased the coefficient of digestibility of DM, CP, CF, EE and NFE but also significantly (P<0.05) increased the coefficient of digestibility of OM than other treatments. Digestible organic matter (DOM), crude protein (DCP), digestible crude fibre (DCF), digestible nitrogen free extract (DNFE) and total digestible nutrients (TDN) contents were significantly (p<0.01) higher in diet D in comparison to diet A, B and C. DOI: http://dx.doi.org/10.3329/bjas.v42i1.15770 Bang. J. Anim. Sci. 2013. 42 (1): 29-34

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Urea supplementation compared with pretreatment. 1. Effects on intake, digestion and live-weight change by sheep fed a rice straw

Cited by 32 publications

References 25 publications

Effects of lactic acid bacteria and urea treatment on fermentation quality, digestibility and ruminal fermentation of roll bale rice straw silage in wethers

Effects of lactic acid bacteria and urea treatment on fermentation quality, digestibility and ruminal fermentation of roll bale rice straw silage in wethers

Intake and digestion in swamp buffaloes and cattle. 3. Comparisons with four forage diets, and with rice straw supplemented with energy and protein

Improving quality of rice straw through treatment with urea and midden soil for large animals

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