Variability of apparent ileal amino acid digestibility in different pea samples for growing-finishing pigs

Fan, M. Z.; Sauer, W. C.

doi:10.4141/a99-003

Cited by 26 publications

(17 citation statements)

References 37 publications

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“…In contrast, De Coca-Sinova et al (2008) reported a Pearson correlation coefficient of-0.745 (P< 0.001) between NDF and CAID for Lys in a study with six SBM samples. Similar results have been reported by Fan and Sauer (1999) in peas (n = 6). Mateos et al (2011) documented that SBM from BRA contained more NDF but also more CP than SBM from USA and ARG.…”

Section: Coefficients Ofapparent and Standardized Tíeal Digestibtíitysupporting

confidence: 91%

Correlation between ileal digestibility of amino acids and chemical composition of soybean meals in broilers at 21 days of age

Frikha

Serrano

Valencia

et al. 2012

Animal Feed Science and Technology

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The correlations between chemical composition and coefficient of standardized ileal digestibility (CSID) of crude protein (CP) and amino acids (AA) were determined in 22 soybean meal (SBM) samples originated from USA (n = 8), Brazil (BRA; n = l) and Argentina (ARG; n = l) in 21-day oíd broilers. Birds were fed a commercial maize-SBM diet from 1 to 17 days of age followed by the experimental diets in which the SBM tested was the only source of protein (205g CP/kg) for three days. Also, in vitro nitrogen (N) digestión study was conducted with these samples using the two-step enzymatic method. The coefficient of apparent ileal digestibility (CAID) of the SBM, independent of the origin, varied from 0.820 to 0.880 for CP, 0.850 to 0.905 for lysine (Lys), 0.859 to 0.907 for methionine (Met) and 0.664 to 0.750 for cysteine (Cys). The corresponding CSID valúes varied from 0.850 to 0.966 for CP, 0.891 to 0.940 for Lys, 0.931 to 0.970 for Met and 0.786 to 0.855 for Cys. The CSID of CP and Lys of the SBM were positively correlated with CP (r = 0.514; P<0.05 and r=0.370; P = 0.09, respectively), KOH solubility (KOH sol.) (r=0.696; P<0.001 and r = 0.619; P < 0.01, respectively), trypsin inhibitor activity (TÍA) (r = 0.541; P < 0.01 and r=0.416; P = 0.05, respectively) and reactive Lys (r=0.563; P<0.01 and r=0.486; P<0.05) valúes, but no relation was observed with neutral detergent fiber and oligosaccharide contení. No relation between the CSID of CP determined in vivo and N digestibility determined in vitro was found. The CSID of most key AA were higher for the USA and the BRA meáis than for the ARG meáis. For Lys, the CSID was 0.921,0.919 and 0.908 (P< 0.05) and for Cys 0.828, 0.833 and 0.800 (P< 0.01) for USA, BRA and ARG meáis, respectively. It is concluded that under the conditions of this experiment, the CSID of CP and Lys increased with CP content, KOH sol., TÍA and reactive Lys valúes of the SBM. The CSID of most limiting AA, including Lys and Cys, were higher for USA and BRA meáis than for ARG meáis.

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Section: Coefficients Ofapparent and Standardized Tíeal Digestibtíitysupporting

confidence: 91%

Correlation between ileal digestibility of amino acids and chemical composition of soybean meals in broilers at 21 days of age

Frikha

Serrano

Valencia

et al. 2012

Animal Feed Science and Technology

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“…The reason for the lower fecal P contents in diets 4 and 5 (3.37-4.29%) than those of diets 1-3 (2.75-2.97%) was not clear, as the dietary supplementation of sodium monobasic phosphate, a very digestible source of P, was progressively increased from diets 1 to 5. The possible reason may be the low P digestibility value in peas, and that the inclusion of pea per se inhibited the digestive utilization of P because of the presence of anti-nutritive factors including trypsin inhibitors and lectins in peas (Begbie and Pusztai 1989;Fan and Sauer 1999). These anti-nutritive factors may affect the digestive utilization of P through two possible mechanisms.…”

Section: Resultsmentioning

confidence: 99%

“…Second, Radley peas used in this study was generally high in anti-nutritive factors including trypsin inhibitors and lectins (Begbie and Pusztai 1989;Fan and Sauer 1999). As discussed in the previous section, the presence of these anti-nutritive factors might have adversely affected the digestion and absorption of phosphates associated with pea proteins, DNA and RNA, and indirectly increased the level of the endogenous P in the ileal and fecal samples, thus resulting in relatively low and even negative P digestibility values in peas.…”

Section: Resultsmentioning

confidence: 99%

Additivity of apparent ileal and fecal phosphorus digestibility values measured in single feed ingredients for growing-finishing pigs

Fan

Sauer²

2002

Can. J. Anim. Sci.

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Fan, M. Z. and Sauer, W. C. 2002. Additivity of apparent ileal and fecal phosphorus digestibility values measured in single feed ingredients for growing-finishing pigs. Can. J. Anim. Sci. 82: [183][184][185][186][187][188][189][190][191]. Two experiments were conducted to determine apparent ileal and fecal P digestibility values in barley, wheat, peas and canola meal and to examine whether the apparent P digestibility values measured in single feed ingredients are additive when used in diet formulation for growing-finishing pigs. In both experiments, five barrows, with average initial body weights of 40 and 35 kg, were fitted with a simple T-cannula at the distal ileum and fed five diets according to a 5 × 5 Latin square design. In exp. 1, the barrows were fed five diets (diets 1, 2, 3, 4, and 5) formulated to contain five graded levels of barley (0, 22.5, 45.0, 67.5 and 90%, respectively) and canola meal (42.7, 36.6, 30.5, 24.4 and 0%, respectively). In exp. 2, the barrows were fed five diets (diets 1, 2, 3, 4, and 5) formulated to contain five graded levels of wheat (88.5, 66.4, 44.3, 22.1 and 0%, respectively) and peas (0, 16.8, 33.6, 50.4 and 67.1%, respectively). Chromic oxide (0.4%) was used as a digestibility marker in both experiments. The pigs were fed twice daily, at 0800 and 2000. The dietary allowance was 1800 g d -1 . Each experimental period lasted 8 d. Representative fecal samples were collected during days 5 and 6. Ileal digesta were collected for a total of 24 h, at 2-h intervals, during days 7 and 8. The ileal and fecal P digestibility values in barley, wheat, peas and canola meal were associated with large standard errors, suggesting a large variability within each feed ingredient. There were no differences (P > 0.05) between the directly determined and predicted apparent fecal P digestibility values in diets 2, 3 and 4 of exp. 1. However, there were differences (P < 0.05) between the directly determined and the predicted apparent fecal P digestibility values in diets 3 (46.5 ± 1.0 vs. 38.7 ± 0.6) and 4 (48.2 ± 1.2 vs. 41.6 ± 1.2) in exp. 2, indicating that apparent fecal P digestibility values are not always additive in diet formulation. It is concluded that apparent P digestibility values are variable and not very reliable in diet formulation for swine. [183][184][185][186][187][188][189][190][191]. Les auteurs ont entrepris deux expériences afin d'établir la digestibilité apparente du phosphore (P) de l'orge, du blé, du pois et du tourteau de canola dans l'iléon et les fèces. Les expériences devaient aussi établir si la digestibilité apparente du P présent dans ces ingrédients est cumulative dans les rations des porcs en croissance-finition. Pour cela, ils ont recouru à cinq castrats d'un poids initial de 40 ou 35 kg pourvus d'une simple canule en T à la partie distale de l'iléon et leur ont donné cinq rations en carré latin de 5 × 5. Dans la première expérience, les castrats ont reçu cinq rations (rations 1, 2, 3, 4 et 5) préparées de manière à contenir une concentration précise d'orge (...

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“…As discussed by Gatel (1992), differences in processing conditions, antinutritional factors and other factors associated with variety and growing conditions were only, in part, responsible for the large variation. Fan and Sauer (1999) recently determined the ileal amino acid digestibility values in six samples of peas which originated from various locations in western-Canada. Of the indispensable (+ semi-) amino acids within each sample, the ileal digestibility values of arginine and lysine were relatively high, ranging from 88.3 to 91.3% and from 78.7 to 85.2%, respectively, while the digestibility values of cysteine, methionine and tryptophan were relatively low, ranging from 53.8 to 62.7%, 69.4 to 75.4%, and from 53.1 to 70.4%, respectively.…”

Section: Legume Seedsmentioning

confidence: 99%

Variability of amino acid digestibility in pigs: inherent factors in feedstuffs and considerations in methodology

Sauer

He²,

Fan³

et al. 2001

J. Anim. Feed Sci.

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There is an abundance of information in the literature on apparent ileal amino acid digestibility values in feedstuffs for pigs. In addition to differences in ileal amino acid digestibility values between feedstuffs, there are surprisingly large differences in ileal amino acid digestibility values among different samples of the same feedstuff (in name). In addition to different processing conditions and inherent factors among samples of the same feedstuff, a proportion of the variation can be attributed to different approaches in methodology to determine amino acid digestibility values. It should also be kept in mind that other factors, including the technique used for collection of ileal digesta, may affect, depending on the feedstuff in question, amino acid digestibility values. As far as methodology is concerned, differences in dietary amino acid levels may contribute to the variation in ileal amino acid digestibility values within the same feedstuff. Dietary amino acid levels quadratically affect ileal amino acid digestibility values. In order to remove the effect of dietary amino acid levels, the plateau ileal amino acid digestibility values should be determined. Methods of determination, the direct versus difference versus regression method, can also affect ileal digestibility values within the same feedstuff. In order to estimate this variation, methods of determination specifically suited for different feedstuffs are recommended. As a concluding remark, it is important to take into account the previous considerations when amino acid digestibility values from the literature are compiled for the purpose of reference for diet formulation for pigs.

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Variability of apparent ileal amino acid digestibility in different pea samples for growing-finishing pigs

Cited by 26 publications

References 37 publications

Correlation between ileal digestibility of amino acids and chemical composition of soybean meals in broilers at 21 days of age

Correlation between ileal digestibility of amino acids and chemical composition of soybean meals in broilers at 21 days of age

Additivity of apparent ileal and fecal phosphorus digestibility values measured in single feed ingredients for growing-finishing pigs

Variability of amino acid digestibility in pigs: inherent factors in feedstuffs and considerations in methodology

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