Effect of extrusion on ruminal and intestinal disappearance of amino acids in white lupin seed

Cros, P.; Moncoulon, R.; Bayourthe, Corine; Vernay, M.

doi:10.4141/cjas92-010

Cited by 28 publications

(16 citation statements)

References 19 publications

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“…Due to the reduction in ruminal degradability, expander treatment increased the calculated intestinal digestibility of undegraded protein and amino acids (data not shown), and similar results have previously been found in a number of studies (Cros et al, 1992;Prestløkken, 1992Prestløkken, , 1999bBenchaar et al, 1993).…”

Section: Total and Intestinal Digestibilitysupporting

confidence: 87%

Profile of digested feed amino acids from untreated and expander treated feeds estimated using in situ methods in dairy cows

2008

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Section: Total and Intestinal Digestibilitysupporting

confidence: 87%

Profile of digested feed amino acids from untreated and expander treated feeds estimated using in situ methods in dairy cows

2008

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“…Moreover, heating CA at 110°C for 2 h reduces CP degradability (Macleod 1987), but this would be a much more severe heat treatment than extrusion. However, extrusion decreases CP degradabiliy of lupins (Cros et al 1992;Kibelolaud et al 1993), which could suggest that the response to extrusion depends on the seed variety or that heat treatment required to effectively decrease CP degradability is not the same for all seeds as previously reported for cereals (Arieli et al 1995).…”

Section: Resultsmentioning

confidence: 54%

“…Moreover, extrusion has the potential of reducing CP degradability as shown in lupin seeds (Cros et al 1992), which could improve the nutritive value of seed as a source of undegraded protein. Khorasani et al (1992) suggested that reducing degradability of the protein-rich matrix surrounding the fat droplets of CA could overcome the negative effects of supplemental fat on ruminal digestion (Devendra and Lewis 1974).…”

Section: Mots Clésmentioning

confidence: 99%

Performance of growing lambs fed grass silage with raw or extruded soybean or canola seeds

Petit¹,

Rioux²,

D'Oliveira³

et al. 1997

Can. J. Anim. Sci.

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, P. S. and do Prado, I. N. 1997. Performance of growing lambs fed grass silage with raw or extruded soybean or canola seeds. Can. J. Anim. Sci. 77: 455-463. Thirty-two Outaouais male lambs were assigned to a completely randomized design with a 2 × 2 factorial arrangement of treatments to determine the effect of extrusion of full fat seeds on performance and carcass quality. Raw (NE) and extruded (EX) isonitrogenous and isoenergetic mixtures of barley and either full fat soybean (SB) or canola seed (CA) were fed at a daily rate of 424 and 400 g, respectively. Lambs were fed silage ad libitum from 20 to 43 kg. Intakes of silage DM and total DE were similar among treatments. The ADG and concentration of total polyunsaturated fatty acids (FA) in muscle were higher for lambs fed EX than NE seeds and the effect was greater for SB than CA mixture; this tended (P = 0.06) to result in an interaction between seed and extrusion for polyunsaturated FA in muscle. Similar trends were observed for feed efficiency. This could reflect the response to heat treatment as extrusion significantly reduced N degradability of SB mixture but had no effect on that of CA mixture. Digestibilities of DM, N, and energy were higher (P < 0.10) for lambs fed SB than for lambs fed CA mixture and extrusion had no effect. Data suggest that extrusion of seeds can be used to improve performance of lambs fed a high forage diet and modify FA composition of the carcass. Le gain moyen quotidien et la concentration en acides gras polyinsaturés totaux du muscle ont été supérieurs pour les agneaux recevant les graines EX que les graines NE et la réponse a été plus grande avec SB qu'avec CA; ceci a eu tendance (P = 0,06) à donner une interaction entre la graine et l'extrusion pour la concentration en acides gras polyinsaturés totaux du muscle. Des tendances semblables ont été observées pour l'efficacité alimentaire. Ces résultats pourraient refléter la réponse au traitement thermique étant donné que l'extrusion a significativement diminué la dégradabilité de l'azote de SB sans avoir d'effet sur celle de CA. La digestibilité de la matière sèche, de N et de l'énergie (P < 0,10) a été supérieure pour les agneaux recevant SB comparativement à ceux recevant CA et l'extrusion n'a pas eu d'effet. Ces résultats suggèrent que l'extrusion des graines oléagineuses peut être utilisée pour améliorer la performance des agneaux recevant une ration riche en fourrage et modifier la composition en acides gras de la carcasse.

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“…To our knowledge, for vetch and bitter vetch, the information available is limited to acid detergent soluble nitrogen values (Aguilera et al., 1992). For lupin (Cros et al., 1992a; Goelema et al., 1998; Solanas et al., 2005) and beans (Cros et al., 1992b; Goelema et al., 1998), high values for IDRUP (from 0.83 to 0.96) and higher than 0.95 for IDDP have been reported using the mobile bag technique in cows.…”

Section: Discussionmentioning

confidence: 99%

Nutritive evaluation of legume seeds for ruminant feeding

Ramos-Morales

Sanz-Sampelayo

Molina-Alcaide

2010

Journal of Animal Physiology and Animal Nutrition

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Chemical composition, rumen degradability and the effect of particle losses, and intestinal digestibility of protein by using in situ-in vitro and in vitro techniques were stated for beans (Vicia faba), lupin (Lupinus albus), vetch (Vicia sativa) and bitter vetch (Vicia ervilia) and four diets including those legume seeds. In addition, the apparent digestibility of experimental diets was determined in goats. The legume seeds showed high protein content (206-319 g/kg dry matter). Effective degradability of protein for legumes and diets varied from 0.80 to 0.87 and 0.76 to 0.82, respectively, decreasing to 0.53-0.76 and 0.61-0.67, respectively, when particle loss was taken into account. Different intestinal digestibility values were obtained with both methodologies without significant relationship between them (y = 1.058-0.463x; R(2)=0.068; RSD = 0.140; p = 0.53). There were no differences in the apparent nutrients and energy digestibility among diets (p > 0.05). These legumes can supply rapidly degradable protein for microbial protein synthesis and contribute to the pool of amino acids available for the synthesis of milk protein and for retention in the body.

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Effect of extrusion on ruminal and intestinal disappearance of amino acids in white lupin seed

Abstract: Cros, P., Moncoulon, R., Bayourthe, C. and Vernay, M. 1992

Cited by 28 publications

References 19 publications

Profile of digested feed amino acids from untreated and expander treated feeds estimated using in situ methods in dairy cows

Profile of digested feed amino acids from untreated and expander treated feeds estimated using in situ methods in dairy cows

Performance of growing lambs fed grass silage with raw or extruded soybean or canola seeds

Nutritive evaluation of legume seeds for ruminant feeding

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