The Dutch protein evaluation system: the DVE/OEB-system

Tamminga, S.; Straalen, W.M. van; Subnel, A.P.J.; Meijer, R.G.M.; Steg, A.; Wever, C.J.G.; Blok, M.C.

doi:10.1016/0301-6226(94)90043-4

Cited by 504 publications

(681 citation statements)

References 47 publications

Supporting

Mentioning

657

Contrasting

Unclassified

Order By: Relevance

“…Three iso-N and iso-net energy diets were formulated to supply the animals with 112 g of true digestible protein in the small intestine, according to Dutch standards (DVE) and 1.96 Mcal of net energy for fattening (NEF) in line with the Dutch feed evaluation system (Van Es and Van der Honing, 1977;Tamminga et al, 1994). The diets differed in terms of the origin of the greater part of the protein, which was supplied by SBM ('SBM' treatment), PPC ('PPC' treatmentTubermine R GP, Roquette, Lestrem, France) or an iso-N mixture of these two protein sources ('mixed' treatment'; Table 1).…”

Section: Treatmentsmentioning

confidence: 99%

“…According to Dutch feeding standards (Tamminga et al, 1994), the DVE content of a diet corresponds to the sum of digestible proteins of dietary (DVBE) and microbial (DVME) origin in the small intestine minus its contribution to faecal endogenous protein losses (DVMFE). The DVE supply with the different diets was calculated from in vivo measurements according to Eq.…”

Section: Treatmentsmentioning

confidence: 99%

“…In the DVE/OEB system (Tamminga et al, 1994), DVMFE are fixed at 75 g/kg indigestible DM. DVME corresponds to the duodenal flow of microbial proteins multiplied by their true digestibility in the small intestine (0.85) and their AA content (0.75).…”

Section: Treatmentsmentioning

confidence: 99%

“…According to Tamminga et al (1994), 150 g of microbial proteins per kg of truly fermentable organic matter (FOM) are synthesised in the rumen. Thus, the OEB value of the diets was estimated from in vivo measurements using Eq.…”

Section: Treatmentsmentioning

confidence: 99%

See 3 more Smart Citations

Nutritional properties of potato protein concentrate compared with soybean meal as the main protein source in feed for the double-muscled Belgian Blue bull

Froidmont

Wathelet

Oger

et al. 2009

Animal

View full text Add to dashboard Cite

The objective of this experiment was to compare the nutritional properties of potato protein concentrate, a by-product of the starch industry produced entirely in Europe, with that of soybean meal (SBM), for growing cattle. The experiment was conducted on double-muscled Belgian Blue bulls, fitted with rumen, duodenal and ileal cannulas, according to a 4 × 4 Latin square design. They were fed three different iso-N and iso-net energy diets formulated according to the Dutch feed evaluation system, differing in the nature of the main protein source, which was either SBM (‘SBM’ treatment), potato protein concentrate (PPC, ‘PPC’ treatment) or an iso-N mixture of these two protein sources (‘mixed’ treatment). A fourth treatment consisted of ‘PPC’ supplemented by 9.5% digestible proteins supplied by duodenal perfusion of sodium caseinate (CAS, ‘PPC + CAS’ treatment). No significant difference was observed in the ruminal fluid pH, whereas both ‘PPC’ and ‘PPC + CAS’ had the effect of reducing the ruminal ammonia nitrogen (N-NH3) concentration. No significant difference was observed in the apparent intestinal digestibility of the dry matter (DM), organic matter (OM) or N. Outflows of non-NH3-N, microbial proteins and dietary proteins from the rumen were similar for ‘PPC’, ‘SBM’ and ‘mixed’, and increased with CAS infusion by 20%, 17% and 27%, respectively. On the basis ofin vivoobservations, the degradability of SBM and PPC proteins was estimated at 0.60 and 0.43, respectively, corresponding to the values quoted in the literature. The supply of digestible essential amino acids (EAA) was significantly greater with ‘PPC + CAS’ and did not differ among ‘SBM’, ‘mixed’ and ‘PPC’. This illustrates the difficulty of altering the amino acid (AA) pattern of digestible protein by the nature of the protein of dietary origin when an animal is fed a high nutritional value diet. N retention was not affected by replacing SBM with PPC, but increased by 10% with CAS infusion. On the basis of the plasma AA pattern, the supply of digestible Met was probably limiting with ‘SBM’, ‘mixed’ and ‘PPC’. The CAS perfusion supplemented all AA, including Met, leading to increased N retention. This improvement was limited, however, and N utilisation remained unchanged between treatments. In conclusion, despite a more favourable EAA pattern, PPC offered no advantage compared with SBM for growing bulls when diets were formulated according to the Dutch feed evaluation system.

show abstract

Section: Treatmentsmentioning

confidence: 99%

Section: Treatmentsmentioning

confidence: 99%

Section: Treatmentsmentioning

confidence: 99%

Section: Treatmentsmentioning

confidence: 99%

See 2 more Smart Citations

Nutritional properties of potato protein concentrate compared with soybean meal as the main protein source in feed for the double-muscled Belgian Blue bull

Froidmont

Wathelet

Oger

et al. 2009

Animal

View full text Add to dashboard Cite

show abstract

“…Diets were devised to provide large amounts of glucogenic nutrients (propionic acid and glucose from escape starch) or large amounts of lipogenic nutrients (acetic and butyric acid and long chain fatty acids), but were equal in net energy (NE), protein digested in the small intestine (DVE) and degraded protein balance (OEB) content, calculated according to the Dutch system (Van Es, 1975;Tamminga et al, 1994). Energy balance was measured by indirect calorimetry.…”

Section: Introductionmentioning

confidence: 99%

Predicting the profile of nutrients available for absorption: from nutrient requirement to animal response and environmental impact

Dijkstra

Kebreab

Mills

et al. 2007

Animal

View full text Add to dashboard Cite

Current feed evaluation systems for dairy cattle aim to match nutrient requirements with nutrient intake at pre-defined production levels. These systems were not developed to address, and are not suitable to predict, the responses to dietary changes in terms of production level and product composition, excretion of nutrients to the environment, and nutrition related disorders. The change from a requirement to a response system to meet the needs of various stakeholders requires prediction of the profile of absorbed nutrients and its subsequent utilisation for various purposes. This contribution examines the challenges to predicting the profile of nutrients available for absorption in dairy cattle and provides guidelines for further improved prediction with regard to animal production responses and environmental pollution.The profile of nutrients available for absorption comprises volatile fatty acids, long-chain fatty acids, amino acids and glucose. Thus the importance of processes in the reticulo-rumen is obvious. Much research into rumen fermentation is aimed at determination of substrate degradation rates. Quantitative knowledge on rates of passage of nutrients out of the rumen is rather limited compared with that on degradation rates, and thus should be an important theme in future research. Current systems largely ignore microbial metabolic variation, and extant mechanistic models of rumen fermentation give only limited attention to explicit representation of microbial metabolic activity. Recent molecular techniques indicate that knowledge on the presence and activity of various microbial species is far from complete. Such techniques may give a wealth of information, but to include such findings in systems predicting the nutrient profile requires close collaboration between molecular scientists and mathematical modellers on interpreting and evaluating quantitative data. Protozoal metabolism is of particular interest here given the paucity of quantitative data.Empirical models lack the biological basis necessary to evaluate mitigation strategies to reduce excretion of waste, including nitrogen, phosphorus and methane. Such models may have little predictive value when comparing various feeding strategies. Examples include the Intergovernmental Panel on Climate Change (IPCC) Tier II models to quantify methane emissions and current protein evaluation systems to evaluate low protein diets to reduce nitrogen losses to the environment. Nutrient based mechanistic models can address such issues. Since environmental issues generally attract more funding from governmental offices, further development of nutrient based models may well take place within an environmental framework.

show abstract

Nitrogen in browse species: ruminal degradability and post-ruminal digestibility measured by mobile nylon bag andin vitro techniques

Kaitho¹,

Umunna²,

Nsahlai³

et al. 1998

J. Sci. Food Agric.

View full text Add to dashboard Cite

This study determined nitrogen degradability and digestibility of rumen undegradable nitrogen using mobile nylon bag (MNB) and pepsin/pancreatin in vitro technique (IV) of 40 browse species. Thirty Ethiopian highland sheep fitted with rumen cannulae were used in nitrogen (N) degradability studies. Six steers fitted with rumen cannulae were used in preparation of 16‐h and 24‐h ruminal undegraded residues and four steers fitted with distal abomasal cannulae were used in MNB technique. The browses varied widely in nitrogen solubility (15–468 g kg−1), potential degradability (223–976 g kg−1), rate of degradation (0·13–24% h−1) and effective degradability (135–821 g kg−1). The apparent N digestibility (ND) of the rumen undegraded residues differed significantly (P<0·05) among browse species. No significant difference (P>0·05) was observed in ND of 16‐h and 24‐h residues. The ND of the 16‐h residue varied from ‐218 to 759 g kg−1 and 169 to 851 g kg−1 for MNB and IV methods, respectively. Browse species with high tannin contents such as Acacia hockii, A horrida, A melanoxylon, A persiciflora, A salicina, A saligna and Flemingia macrophylla had high rumen by‐pass and a low ND, while Sesbania spp and A nilotica with low tannin contents underwent rapid and extensive dry matter and nitrogen degradation in the rumen. Acacia sieberiana, Chamaecytisus palmensis, Erythrina spp, Gliricidia sepium, Samanea saman and Enterolobium cyclocarpum had high proportions of protein escaping rumen degradation (BP) and with a high proportion of the by‐pass protein digested in the intestine, therefore these browses had a high potential as protein supplements. The ND measured with the MNB were significantly lower (P<0·001) than by the IV method. The correlation between MNB and IV was high and significant (R2=0·89, P<0·0001) as also indicated by the regression equation (SE in parentheses): MNB=‐22·8 (4·55)+1·0 (0·08)IV (RSD=10·56, R2=0·79, n=40, P<0·001). The intercept of the linear relationship obtained was different from zero while the slope was not different from unity. Multiple regression analysis suggested that some of the unexplained variation could be accounted for by either nitrogen, acid detergent fibre, total phenolics or neutral detergent fibre bound tannin levels in browses. The IV method is accurate for estimating digestibility of ruminally undegradable N, and hence its use would considerably reduce the need for delicate surgery and the elaborate procedures involving the MNB technique. © 1998 SCI.

show abstract

The Dutch protein evaluation system: the DVE/OEB-system

Cited by 504 publications

References 47 publications

Nutritional properties of potato protein concentrate compared with soybean meal as the main protein source in feed for the double-muscled Belgian Blue bull

Nutritional properties of potato protein concentrate compared with soybean meal as the main protein source in feed for the double-muscled Belgian Blue bull

Predicting the profile of nutrients available for absorption: from nutrient requirement to animal response and environmental impact

Nitrogen in browse species: ruminal degradability and post-ruminal digestibility measured by mobile nylon bag andin vitro techniques

Contact Info

Product

Resources

About