An analysis of the nutritive value of heat processed legume seeds for animal production using the DVE/OEB model: a review

Yu, Peiqiang; Goelema, J.O.; Leury, B. J.; Tamminga, S.; Egan, A. R.

doi:10.1016/s0377-8401(02)00114-1

Cited by 63 publications

(67 citation statements)

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“…Comparison of treatment means was carried out using the adjusted Tukey test when the effect of treatment was significant at P < 0.05. The PROC CORR and PROC REG (SAS Institute, Inc. 1998) were used for linear correlation and regression analysis between predicted values from the NRC-2001 model and that reported with the DVE/OEB system (Goelema 1999; Yu et al 2002). A linear regression analysis with the test for slope equal to one and intercept equal to zero were used to determine if there was a bias in the predictions of the NRC-2001 model relative to the DVE/OEB system.…”

Section: Discussionmentioning

confidence: 99%

“…The optimum PDB value in a ration is therefore zero to slightly positive (Tamminga et al 1994). Modeling nutrient supply from the toasted legume seeds including whole lupin seeds with the DVE/OEB system (Tamminga et al 1994) was reported by Goelema (1999) and Yu et al (2002).…”

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confidence: 99%

“…Lupin seed exhibit a high rate and extent of rumen degradation, resulting in an imbalance between feed breakdown and microbial protein synthesis, making them inefficient for use in dairy diets under certain circumstances Van Straalen and Tamminga 1990). Many attempts have been made to protect protein in this grain legume against rapid rumen degradation by treatments involving application of heat with or without moisture Cros et al 1991;Kibelolaud et al 1993;Robinson and McNiven 1993;Murphy and McNiven 1994;Singh et al 1995;Zaman et al 1995;Goelema, 1999;Yu et al, 2002). The purpose of heat treatments was to reduce rumen degradation of protein and to increase RUP without adversely affecting total tract protein digestion.…”

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confidence: 99%

“…Toasting reduced the RDP and RUP value (Goelema 1999;Goelema et al 1999;Yu et al 2002). However, no quantitative evaluation of potential nutrient supply to dairy cows from lupin seeds that were systematically toasted, predicted with the NRC-2001 model (which is widely used in North America) as a TDN-based model, has been reported in terms of the PDB and MP values.…”

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Modeling nutrient supply to dairy cattle from a feedstuff using NRC-2001 (a TDN-based model) with inputs based on in situ and mobile bag technique measurements

Yu¹

2005

Can. J. Anim. Sci.

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Yu, P. 2005. Modeling nutrient supply to dairy cattle from a feedstuff using NRC-2001 (a TDN-based model) with inputs based on in situ and mobile bag technique measurements. Can. J. Anim. Sci. 85: 513-519. The objectives of this study were to use the NRC-2001 model with inputs based on in situ and mobile bag techniques to (1) predict the potential nutrient supply to dairy cows using an exampled feed-whole lupin seeds that were systematically toasted and (2) quantitatively determine the effects of toasting (which shifted degradation of protein from the rumen to the abomasum and small intestine without changing intestinal digestion) and optimal toasting conditions by the NRC-2001 model. The quantitative predictions were made in terms of: (1) rumen undegraded and degraded feed protein, (2) truly absorbed undegraded protein, (3) potential microbial protein synthesized in the rumen from rumen available protein or (4) from total digestible nutrients (TDN), (5) truly absorbed rumen synthesized microbial protein, (6) truly absorbed rumen endogenous protein, (7) total metabolizable protein (MP), as well as (8) the protein degradation balance (PDB). The results show that using the NRC-2001 model with inputs based on in situ and mobile bag techniques, the predicted PDB and MP supply to dairy cattle was significantly improved. However, no optimal condition could be obtained from this study due to high PDB values (>48 g kg -1 DM) in all the treatments, predicted by the model. With toasting, temperature and/or duration could go still higher than 136°C and/or longer than 15 min to further prevent potential N loss in the rumen if total tract digestion is not depressed. More study is needed. However, the results differed from that published with the DVE/OEB system (a non-TDN-based model) although the two models had significant correlations with high R (>0.99) values. Using the NRC model, the overall mean for MP was higher (+10 g kg -1 DM), but the PDB values were lower (-12 g kg -1 DM) in comparison with that predicted by the non-TDN based model for the whole lupin seeds. (2) mesurer quantitativement les effets du toastage (qui fait passer la dégradation des protéines du rumen à la caillette et à l'intestin grêle sans pour autant modifier la digestion intestinale) ainsi qu'établir les conditions de toastage optimales avec le NRC-2001. Les prévisions quantitatives ont été établies en fonction des paramètres suivants : (1) protéines dégradées et non dégradées dans le rumen; (2) protéines non dégradées réellement assimilées; (3) protéines unicellulaires susceptibles d'être synthétisées dans le rumen à partir des protéines disponibles ou (4) de l'ensemble des éléments nutritifs digestibles; (5) protéines unicellulaires synthétisées dans le rumen vraiment assimilées; (6) protéines endogènes du rumen réellement assimilées; (7) protéines métabolisables totales (PM)et (8) Abbreviations: A, soluble fraction in the in situ incubation; ADFICP, acid detergent insoluble protein; AECP, truly absorbed endogenous protein in the small intesti...

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Modeling nutrient supply to dairy cattle from a feedstuff using NRC-2001 (a TDN-based model) with inputs based on in situ and mobile bag technique measurements

Yu¹

2005

Can. J. Anim. Sci.

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“…Starch escaping rumen degradation will not only reduce fermentation losses in the rumen and the negative effect of starch fermentation on rumen fibre digestibility, it will also supply the animal with more glucose if digested in the small intestine (Yu et al, 2002). If not, increased rumen bypass starch may be fermented in the hindgut, whereby efficiency of utilisation will be lower as microbial matter synthesised will be excreted in faeces, or bypass starch may even be excreted in the faeces.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the mobile bag method for estimation of in vivo starch digestibility

Ghoorchi

Lund

Larsen

et al. 2013

Animal

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The objective was to assess the ability of the in situ mobile nylon bag method for predicting small intestinal and total tract starch digestibility. Starch disappearance was measured for 18 samples of different cereals and legumes subjected to different physical and chemical processing methods and compared with coherent in vivo digestibility. Starch disappearance was measured both with and without initial ruminal pre-incubation during 4 h. Bags were retrieved from either the ileal cannula or faeces. Two dry Danish Holstein cows fitted with rumen cannulas were used for rumen pre-incubations and two lactating Danish Holstein cows fitted with duodenal and ileal cannulas were used for intestinal incubations. Rumen pre-incubation had no significant effect on disappearance from bags recovered in faeces. The disappearance of legume starch was lower, both in the rumen and small intestine, compared with starch from barley, wheat, oats, ear maize and maize. Transit times of the mobile bags from duodenum to ileum were not significantly different between feeds. A weak positive correlation was found between in vivo small intestinal and total tract digestibility of starch and disappearance obtained using the mobile bag technique across a broad range of starch sources. Omitting two less conventional starch sources (NaOH wheat and xylose-treated barley) resulted in a high (0.87) correlation between total tract in vivo digestibility and mobile bag disappearance. The use of the mobile bag method for estimation of in vivo starch digestibility will therefore depend on the starch type.

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The effect of the inclusion of pea in lamb fattening concentrate on in vitro and in situ rumen fermentation

et al. 2020

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BACKGROUND The objective of this study was to evaluate the effect of the proportion of pea (0%, 10%, 20%, and 30%), as a partial replacement for soybean meal (SBM) in the fattening concentrate, on ruminal fermentation in lambs. Gas and methane (CH4) production, in vitro dry matter degradability (IVDMD), ammonia (NH3‐N), and volatile fatty acid (VFA) production after 24 h of incubation were evaluated. The concentrates were also incubated in the rumen of the wethers for 2, 4, 6, 8, 12, and 24 h to evaluate the effects of pea inclusion on in situ dry matter degradability (DMD), organic matter degradability (OMD), nitrogen degradability (ND), NH3‐N, and VFA production. RESULTS In the in vitro assay, the inclusion of pea only affected gas production (mL day−1 degraded dry matter), CH4 production (mL day−1 degraded dry matter), and IVDMD (P < 0.05), and tended to affect NH3‐N content (P < 0.10) without affecting VFA production. In the in situ assay, the inclusion of pea increased DMD, OMD, and ND linearly (P < 0.001), whereas pea inclusion decreased NH3‐N content linearly (P < 0.05). Neither total VFA production nor the proportion of acetic acid were affected by pea inclusion (P > 0.05), but the propionic proportion increased with the proportion of pea included. CONCLUSIONS The best level of pea inclusion in the concentrate could not be established based on the results of this study. However, the results showed that the inclusion of pea provides a good alternative protein source. © 2020 Society of Chemical Industry

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An analysis of the nutritive value of heat processed legume seeds for animal production using the DVE/OEB model: a review

Cited by 63 publications

References 53 publications

Modeling nutrient supply to dairy cattle from a feedstuff using NRC-2001 (a TDN-based model) with inputs based on in situ and mobile bag technique measurements

Modeling nutrient supply to dairy cattle from a feedstuff using NRC-2001 (a TDN-based model) with inputs based on in situ and mobile bag technique measurements

Assessment of the mobile bag method for estimation of in vivo starch digestibility

The effect of the inclusion of pea in lamb fattening concentrate on in vitro and in situ rumen fermentation

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