Nutrient digestibility and ruminal fermentation characteristic in swamp buffaloes fed on chemically treated rice straw and urea

Nguyen, Van Tam; Wanapat, Metha; Khejornsart, Pichad; Kongmun, P.

doi:10.1007/s11250-011-9946-6

Cited by 23 publications

(15 citation statements)

References 23 publications

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“…However, it is characterized by low levels of CP and high level of structural polysaccharides, which drastically affected the DM intake, digestion and ultimate performance (Wanapat et al, 1985; Chemjon, 1991; Safari et al, 2011). Improving the utilization of low quality roughages could be by treatment with nitrogen sources, chemical and physical treatment (McDonald et al, 2002; Nguyen et al, 2012). Urea treatment of rice straw could increase its nutritive value (Sundstøl et al, 1978; Abate and Melaku, 2009).…”

Section: Introductionmentioning

confidence: 99%

Effects of Physical Form and Urea Treatment of Rice Straw on Rumen Fermentation, Microbial Protein Synthesis and Nutrient Digestibility in Dairy Steers

Gunun

Wanapat

Anantasook

2013

Asian Australas. J. Anim. Sci

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This study was designed to determine the effect of physical form and urea treatment of rice straw on rumen fermentation, microbial protein synthesis and nutrient digestibility. Four rumen-fistulated dairy steers were randomly assigned according to a 2 (2 factorial arrangement in a 4 (4 Latin square design to receive four dietary treatments. Factor A was roughage source: untreated rice straw (RS) and urea-treated (3%) rice straw (UTRS), and factor B was type of physical form of rice straw: long form rice straw (LFR) and chopped (4 cm) rice straw (CHR). The steers were offered the concentrate at 0.5% body weight (BW) /d and rice straw was fed ad libitum. DM intake and nutrient digestibility were increased (p<0.05) by urea treatment. Ruminal pH were decreased (p<0.05) in UTRS fed group, while ruminal ammonia nitrogen (NH3-N) and blood urea nitrogen (BUN) were increased (p<0.01) by urea treatment. Total volatile fatty acid (VFA) concentrations increased (p<0.01) when steers were fed UTRS. Furthermore, VFA concentrations were not altered by treatments (p>0.05), except propionic acid (C3) was increased (p<0.05) in UTRS fed group. Nitrogen (N) balance was affected by urea treatment (p<0.05). Microbial protein synthesis (MCP) synthesis were greater by UTRS and CHR group (p<0.05). The efficiency of microbial N synthesis was greater for UTRS than for RS (p<0.05). From these results, it can be concluded that using the long form combined with urea treatment of rice straw improved feed intake, digestibility, rumen fermentation and efficiency of microbial N synthesis in crossbred dairy steers.

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Section: Introductionmentioning

confidence: 99%

Effects of Physical Form and Urea Treatment of Rice Straw on Rumen Fermentation, Microbial Protein Synthesis and Nutrient Digestibility in Dairy Steers

Gunun

Wanapat

Anantasook

2013

Asian Australas. J. Anim. Sci

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“…Addition of dietary concentrate decreased relative abundance of Fibrobacteraceae in the solid (de Menezes et al, 2011) and liquid fraction (Thoetkiattikul et al, 2013). Greater urea content in iso-nitrogenous protein supplements (65 mg N/kg BW) fed to swamp buffalo consuming rice straw (2% CP) increased cellulolytic species determined by roll-tube technique (Nguyen et al, 2012). However, no change in absolute abundance of F. succinogenes was detected by real-time PCR with the increase in urea.…”

Section: Discussionmentioning

confidence: 93%

Effect of postextraction algal residue supplementation on the ruminal microbiome of steers consuming low-quality forage1

McCann

Drewery

Sawyer

et al. 2014

Journal of Animal Science

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Cattle consuming low-quality forages (LQF) require protein supplementation to increase forage utilization via ruminal fermentation. Biofuel production from algal biomass results in large quantities of postextraction algal residue (PEAR), which has the potential to elicit LQF utilization responses similar to cottonseed meal (CSM); however, its effect on ruminal bacterial communities is unknown. Five ruminally and duodenally cannulated Angus steers in a 5 × 5 Latin square had ad libitum access to oat straw diets. Treatments were infused ruminally and consisted of an unsupplemented control; PEAR at 50, 100, and 150 mg N/kg BW; and CSM at 100 mg N/kg BW. Ruminal samples were collected 4 h after supplementation on d 14 of each period and separated into solid and liquid fractions. Each sample was extracted for genomic DNA, PCR amplified for the V4 to V6 region of the 16S rRNA, sequenced on the 454 Roche pyrosequencing platform, and analyzed using the QIIME pipeline. Weighted UniFrac analysis and Morisita-Horn index demonstrated different community composition between liquid and solid fractions. Measures of richness including observed operational taxonomic units (OTU) and abundance coverage estimator metric decreased with greater PEAR provision (P ≤ 0.09). There were 42 core microbiome OTU observed in all solid fraction samples while the liquid fraction samples contained 30 core OTU. Bacteroidetes was the predominant phylum followed by Firmicutes in both fractions, which together characterized more than 90% of sequences. Relative abundance of Firmicutes increased with PEAR supplementation in the liquid fraction (linear, P = 0.02). Among Firmicutes, Lachnospiraceae, Ruminococcaceae, and Clostridiaceae families increased in the liquid fraction with greater PEAR supplementation (linear, P ≤ 0.03). Prevotella represented over 25% of sequences in all treatments, and relative abundance decreased in the solid fraction with increasing PEAR provision (linear, P = 0.01). Fibrobacter and Treponema decreased in the liquid fraction with increasing PEAR (linear, P < 0.10). Results suggest PEAR supplementation increased forage utilization by increasing members of Firmicutes within the liquid fraction of the rumen microbiome.

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“…The combination of using urea-lime-treated rice straw and fed with concentrate feed (4% urea) has ability to improve rumen ecology, rumen fermentation efficiency, and nutrient digestibility in swamp buffaloes as reported by Nguyen et al (2012). Hue et al (2008) reported that on feeding sheep with urea treated rice straw as a based diet, the commercial concentrate could be replaced by protein source feed, such as cassava and jackfruit foliage.…”

Section: Physical/mechanical Treatmentmentioning

confidence: 99%

Agricultural by-Products as Feed for Ruminants in Tropical Area: Nutritive Value and Mitigating Methane Emission

Yanti

Yayota

2017

RAS

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Nutrient digestibility and ruminal fermentation characteristic in swamp buffaloes fed on chemically treated rice straw and urea

Cited by 23 publications

References 23 publications

Effects of Physical Form and Urea Treatment of Rice Straw on Rumen Fermentation, Microbial Protein Synthesis and Nutrient Digestibility in Dairy Steers

Effects of Physical Form and Urea Treatment of Rice Straw on Rumen Fermentation, Microbial Protein Synthesis and Nutrient Digestibility in Dairy Steers

Effect of postextraction algal residue supplementation on the ruminal microbiome of steers consuming low-quality forage1

Agricultural by-Products as Feed for Ruminants in Tropical Area: Nutritive Value and Mitigating Methane Emission

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