Chemical and metabolic aspects of urea-ammonia toxicosis in cattle and sheep

Lloyd, William E.

doi:10.31274/rtd-180813-3382

Cited by 4 publications

(1 citation statement)

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“…With respect to in vitro rumen fermentation, our present findings showed that the pH values of the five test feeds at 48 h of in vitro fermentation were 6.59–6.89, which is in the normal physiological range of rumen fluid for rumen microorganisms. The NH 3 ‐N concentrations of the five test feeds ranged from 24.3 to 69.5 mg N/dL (Table ), which is within normal rumen ammonia levels (< 130 mg N/dL; Lloyd ) for ensuring microbial protein synthesis. The NH 3 ‐N concentrations of the TKPERs were significantly higher than that of SBCR (Table ).…”

Section: Discussionmentioning

confidence: 80%

In vitro ruminal fermentation and in situ ruminal degradation of tamarind kernel powder extract residue in wethers

Wang

Oishi

Sato

et al. 2016

Animal Science Journal

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We examined the in vitro fermentation characteristics and in situ dry matter (DM) and crude protein (CP) degradability of tamarind kernel powder extract residue (TKPER), a by-product of polysaccharides thickener processing. Two types of TKPER (I and II), of which the CP and neutral detergent fiber organic matter basis contents (%) were 41.4 and 42.0 and 1.4 and 0.5, respectively, were compared with dry heat soybean (SB), soybean meal (SBM) and dry soybean curd residue (SBCR). The TKPERs had significantly lower in vitro gas production compared to the other products at each observation time (P < 0.05). The in vitro DM and CP digestibility (%) of TKPER I and II were 67.7 and 64.9, and 64.5 and 58.0, respectively, significantly lower than those of SB and SBM (P < 0.05). We used four wethers (55.6 ± 4.6 kg) with ruminal cannulas to investigate the in situ degradability of TKPER I, SB, SBM and SBCR. At the ruminal outflow rate of 0.05/h, the effective degradability (%) values of the DM and CP of TKPER I were 64.1 and 49.7, respectively, which were similar to those of SBM. In conclusion, TKPER had high CP and exhibited in situ degradability similar to that of SBM, suggesting that TKPER could be used as a protein source feed.

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Section: Discussionmentioning

confidence: 80%