Effect of Sodium Bicarbonate on Nitrogen Utilization and Feed Intake by Lambs

Phillip, L. E.

doi:10.4141/cjas83-069

Cited by 17 publications

(18 citation statements)

References 13 publications

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“…The apparent digestibility coefficients of DM did not differ significantly among groups and ranged from 29 (I) to 40% (III) in the forestomachs, while from 22 (II, III) to 28% (I) in the small intestine. Phillipson (1983), Mess et al (1985) and Leontowicz et al (1993) did not find any effect of Na and/or Ca (Leontowicz et al, 1994) on the apparent digestibility of DM or OM.…”

Section: Discussionmentioning

confidence: 96%

The effects of calcium and sodium loading on organic matter digestibility and mineral absorption in sheep. 1. Digestion in the forestomachs and small intestine

Leontowicz¹,

Krzemiński²,

Leontowicz³

et al. 1995

J. Anim. Feed Sci.

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Experiments were conducted on sheep cannulated to the rumen, duodenum and ileum to study the effects of Ca and Na loading (5 and 10 times the ARC requirements) on digestion in the rumen and intestines. The introduction of calcium lactate (19.6%) or sodium chloride (9.6%) into extruded feed mixtures had no significant effect on degradation in the rumen (apparent digestibility of organic matter in the forestomachs averaged 40%, ileal digestibility 61%) or on the pH of ruminal (5.73), duodenal (3.37) or ileal (7.63) digesta. Excess sodium in the diet reduced (P < 0.05) microbial protein synthesis in the rumen (7.69g N-MP/d) in comparison with control sheep and those loaded with Ca (10.46 and 10.74 g N-MP/g) as well as the apparent digestibility of total nitrogen in the small intestine.

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Section: Discussionmentioning

confidence: 96%

The effects of calcium and sodium loading on organic matter digestibility and mineral absorption in sheep. 1. Digestion in the forestomachs and small intestine

Leontowicz¹,

Krzemiński²,

Leontowicz³

et al. 1995

J. Anim. Feed Sci.

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“…These conditions were created in order to maximize any potential benefit of NaHCO, upon nitrogen balance (Phillip 1983 lambs (Phillip 1983;Asplund et al 1980 Support for a detrimental effect of NaHCO, on nitrogen balance can be adduced from studies by Mees et al (1985). These workers found that NaHCO.…”

Section: Resultsmentioning

confidence: 99%

Effects Upon Nitrogen Utilization of Sodium Bicarbonate-Induced Changes in Acid-Base and Electrolyte Balance in Lambs

Rogers¹,

Phillip²

1987

Can. J. Anim. Sci.

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Addition of NaHCo, to the diet caused a linear (p < 0.0 j d""r"ur" in piasma chloride and in urinary excretion of ammonia-nitrogen (p< 0.01); concentratioins of K and Na in plasma were unaffected by NaHCo, inihe diet. There was a progressive but nonsignificant (P>0.05) refucl!9n-i1 nitrogen retention in respon-se to NaHCOr. However, at the 6% level of NaHCo3 inclusion, nitrogen retenaion was reduced by 85 % . The relationship between nitrogen balance and blolod bicarbonate paralleled that b91rye9n nitrogen balance and plasma ionic balance (Na+K-cl). A specific effect of.NaHCo3 ol nitrogen balance that is independent of changes in plasma electrolyte balance remains to be proven.

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“…been conflicting responses in N balance when NaHCO 3 was added to concentrate or silage diets and offered to cattle and sheep (Thomas and Wilkinson 1975;Phillip 1983;Mees et al 1985). In the study with calves fed corn silage, Thomas and Wilkinson (1975) reported that the addition NaHCO 3 to neutralize silage acidity had no effect on N retention.…”

Section: Nitrogen Retention and Acid-base Balancementioning

confidence: 99%

“…In the study with calves fed corn silage, Thomas and Wilkinson (1975) reported that the addition NaHCO 3 to neutralize silage acidity had no effect on N retention. However, Phillip (1983) reported that the addition of 4% NaHCO 3 to a diet based on barley and corn silage tended to improve N balance in lambs, particularly with a low protein diet. Mees et al (1985) observed no effect of NaHCO 3 (3.5%) on N balance in lambs fed a low or high protein diet; there was, however, significant reduction in urinary N excretion at the low protein intake.…”

Section: Nitrogen Retention and Acid-base Balancementioning

confidence: 99%

“…During a state of metabolic acidosis, body protein may be catabolized to generate bicarbonate so that acid-base balance can be restored; under such conditions the addition NaHCO 3 to the diet would spare body protein breakdown and reduce N excretion in the urine (Hannaford et al 1982), with the potential to improve N balance. In a study with lambs fed a diet based on corn silage, Phillip (1983) reported that dietary addition of NaHCO 3 (4% of diet DM) tended to improve N balance. Sodium bicarbonate has the additional effect of increasing the flow of bacterial protein to the duodenum (Mees et al 1985;Newbold et al 1988) and this may also reduce the need for fishmeal supplementation of grass silage.…”

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Evaluation of the potential protein-sparing effects of sodium bicarbonate when added to grass silage for growing steers

Fellner¹,

Phillip²,

Garino³

2000

Can. J. Anim. Sci.

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Evaluation of the potential protein-sparing effects of sodium bicarbonate when added to grass silage for growing steers. Can. J. Anim. Sci. 80: 131-136. Six Hereford-cross steers were used to determine whether or not the addition of sodium bicarbonate (NaHCO 3 ) to grass silage (GS) would reduce the need for supplemental protein from fish meal (FM). Grass silage (31% DM; pH 4.8) was either unsupplemented or supplemented with FM (10% of silage DM); NaHCO 3 was added at 0, 2, or 4% of silage DM. Supplementation with FM increased N retention (P < 0.01) but had no effects (P > 0.10) on feed intake or digestibility of organic matter (OM). Urinary N excretion decreased (P < 0.05) linearly with the addition of NaHCO 3 but due to an increase in fecal N there was no significant effect (P > 0.10) of NaHCO 3 on N balance. Urinary excretion of bicarbonate (HCO 3 ) increased linearly (P < 0.01) with NaHCO 3 addition, but there was no effect (P > 0.10) on urine pH or measures of blood acid-base status. Addition of NaHCO 3 increased silage pH to 6.5 but had no effect (P > 0.10) on voluntary feed intake, or digestibility of OM and ADF. The results indicate that the addition of NaHCO 3 to grass silage did not spare dietary protein but led to a shift in the partition of N between urine and feces. Les taux d'incorporation de NaHCO 3 étaient de 0, 2 ou 4 % de la matière sèche ensilée. L'apport de FP provoquait une augmentation (P < 0,01) de la réten-tion de N mais elle n'avait pas d'effets significatifs (P > 0,10) sur l'ingéré alimentaire ni sur la digestibilité de la matière organique (m.o.). L'excrétion de N dans l'urine diminuait (P < 0,05) en fonction linéaire inverse de la dose de NaHCO 3 , mais par suite de l'accroissement des déperditions de N fécal, il n'y avait pas d'effets significatifs (P > 0,10) sur le bilan azoté. L'excrétion urinaire d'ions bicarbonate (HCO 3 ) augmentait en fonction linéaire des apports de NaHCO 3 mais on n'observait pas d'autres effets significatifs (P > 0,10) sur le pH de l'urine ni sur l'équilibre acido-basique du sang. La présence du NaHCO 3 produisait une hausse du pH jusqu'à 6,5, mais elle n'avait pas d'effets significatifs sur l'ingéré alimentaire libre ou sur la digestibilité de m.o. et de la lignocellulose. Bien que l'ajout de NaHCO 3 à l'ensilage n'ait pas autorisé d'économie de complémentation protéique, il provoquait néanmoins un renversement de la répartition des pertes de N entre l'urine et les fèces.Mots clés: Bouvillons, ensilage de graminée, bicarbonate de sodium, rétention de l'azote Grass silage is relatively high in crude protein but as a result of extensive rumen degradation of its nitrogenous constituents, it does not meet the amino acid needs of growing cattle (Veira et al. 1985). Supplementation of grass silage with fish meal, a source of rumen undegraded protein, leads to an increase in amino acid supply to the duodenum of ruminants (Gill and Beever 1982) and enhances the growth rate of steers (Veira et al. 1985 ;Petit and Flipot 1992). It may be possible, however, to reduce ...

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Effect of Sodium Bicarbonate on Nitrogen Utilization and Feed Intake by Lambs

Abstract: Psrr-lrp, L. E. 1983

Cited by 17 publications

References 13 publications

The effects of calcium and sodium loading on organic matter digestibility and mineral absorption in sheep. 1. Digestion in the forestomachs and small intestine

The effects of calcium and sodium loading on organic matter digestibility and mineral absorption in sheep. 1. Digestion in the forestomachs and small intestine

Effects Upon Nitrogen Utilization of Sodium Bicarbonate-Induced Changes in Acid-Base and Electrolyte Balance in Lambs

Evaluation of the potential protein-sparing effects of sodium bicarbonate when added to grass silage for growing steers

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