In situ evaluation of the ruminal and intestinal degradability of extruded whole horsebeans

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

doi:10.1051/rnd:19910306

Cited by 15 publications

(13 citation statements)

References 6 publications

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“…Soybean extrusion at all tested three temperatures was followed by a significant (P < 0.05) reduction in the proportion of the rapidly degraded DM and CP fractions a, and both the increased proportions and reduced breakdown rate (c) of the fraction b (Table 2). The decrease in soluble fractions by heat treatment is in agreement with others (Chouinard et al, 1997;Cros et al, 1991). Van Soest (1987) reported that rapidly degradable true protein fractions denatured at lower heat inputs and became intermediately or slowly degradable fractions based on the level of heat inputs while slowly degradable protein fractions responded at higher heat temperature and usually became unavailable.…”

Section: Resultssupporting

confidence: 89%

“…The percentage content observed in the present study for the total tract digestion of CP was high and similar to that obtained by Benchaar et al (1994) and Cros et al (1991) for extruded field beans and Arieli et al (1989) for whole cottonseeds. The increasing temperature of Jet-Sploding of whole canola seeds from 116 to 177°C decreased effective protein degradability from 61.0 to 34.7% without reducing digestibility of undegradable protein in the intestine (Kennely and de Boer, 1986).…”

Section: Resultssupporting

confidence: 89%

“…Benchaar et al (1994) reported that the extrusion of whole horse beans at 195°C decreased rumen protein disappearance from 90 to 58% and increased intestinal availability of ruminally undegraded dietary CP from 78 to 91%. Field beans extruded at 120°C decreased effective protein degradability from 89 to 70% without adverse effect on total crude protein digestibility (Cros et al, 1991). Lindberg et al (1982) found that heating whole rapeseeds at 150 and 200°C decreased EPD by 18 and 52%, respectively, however heating at 100°C had no significant effect on ruminal protein degradability.…”

Section: Resultsmentioning

confidence: 99%

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In situ evaluation of ruminal degradability and intestinal digestibility of extruded soybeans

Nowak¹,

Michalak²,

Wylegała³

2005

Czech J. Anim. Sci.

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Two ruminally cannulated Jersey cows were used to determine in situ ruminal degradability and intestinal digestibility of raw (E0) soybeans and soybeans extruded at 145°C (E145), 155°C (E155) and 165°C (E165). The degradation of dry matter (DM) and crude protein (CP) was estimated using nylon bags suspended in rumen for 2, 4, 8, 12, 16, 24 and 48 h calculating the effective ruminal degradabilities (ERD) for an assumed outflow rate of 0.06/h. Four extra sample bags were incubated for 12 h to determine CP digestibility using the mobile nylon bag method. Cows were fed a ration of 30% concentrate and 70% meadow hay. Soybean extrusion at all temperatures decreased the effective protein degradability significantly (P < 0.05). Soybean processing at the highest heat input (E165) decreased ERD (44.0%) in the rumen significantly while the values for E145 and E155 were similar, 50.8 and 50.3% respectively. Soybean extrusion at all tested temperatures was followed by a significant (P < 0.05) reduction in the proportion of the rapidly degraded DM and CP fractions a, and both the increased proportions and reduced breakdown rate (c) of the fraction b. The intestinal protein digestibility values of the rumen-undegraded protein of extruded soybean were somewhat higher, however the observed differences between treatments were not significant (P < 0.05). Estimated intestinal digestibilities were 87.2, 89.7, 92.0 and 92.6% for E0, E145, E155 and E165, respectively.

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Section: Resultssupporting

confidence: 89%

Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

In situ evaluation of ruminal degradability and intestinal digestibility of extruded soybeans

Nowak¹,

Michalak²,

Wylegała³

2005

Czech J. Anim. Sci.

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“…Unheated WLS proteins, composed primarily of globulins: 87.2% and albumins: 12.8% (Duranti and Cerletti, 1979) were highly soluble both in vitro (80.5%) and probably in situ (parameter a = 80.7%). (Mir et al, 1984;Michalet-Doreau et al, 1985;Deacon et al, 1988;Arieli et al, 1989;Cros et al, 1991 …”

Section: Discussionmentioning

confidence: 99%

In situ evaluation of the ruminal and intestinal degradability of extruded whole lupin seed nitrogen

Cros¹,

Benchaar²,

Bayourthe³

et al. 1991

Reprod. Nutr. Dev.

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“…The percentage of degradable protein in the intestine was 38% in extruded bean as compared with 33.5% in untreated bean. Cros et al (1991) came to a similar conclusion and they found that adding extruded bean seeds to diet increases intestinal availability of proteins from the feed. The effect of bean heat treatment on amino acid composition was studied by Cros et al (1992).…”

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confidence: 64%

Performance and Metabolism of Dairy Cows Fed Bean Seeds (Vicia faba) with Different Levels of Anti-Nutritional Substances

et al. 2009

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The aim of this study was to determine the effect of selected bean cultivars with different levels of anti-nutritional substances on performance and metabolism of dairy cows. In the current twelve-week-long study, 32 dairy cows at 3 to 6 weeks after parturition were divided into four groups. Diets were balanced to have an analogical content of crude protein and energy. Experimental groups (MI, ME, MET) were mixed to the milking concentrate consisting of 20% bean seeds (MI -MISTRAL cultivar with a low content of anti-nutritional substances; ME -MERKUR cultivar with high content of anti-nutritional substances; MET -MERKUR cultivar with technologically reduced the amount of anti-nutritional substances). Clinical evaluation of dairy cows' health and feed intake showed no negative effect of the bean supplementations. Energy, nitrogen and mineral metabolisms were not impaired either. No significant differences were found between groups in milk performance (daily milk yield, protein and lactose production) during the study.On the basis of these results, the bean can be used in 20% in the milking concentrate of dairy cattle. Health risks associated with anti-nutritional content of the native bean are not significant for high-producing dairy cattle. Bean, metabolism, milk performance, reproduction, anti-nutritional substancesBean seeds (Faba vulgaris Moench., syn. Vicia faba L.) are important sources of proteins used in diets of farm animals. Globally, the bean and lupin are grown on the smallest acreage among all pulses. In our climate, beans are used mainly as a fodder crop. Bean seeds contain on average 30-34% crude protein (CP), 6-7% fibre, 47-51% N-free extract (NFE), 33-40% starch, 0.9% ether extract (EE), and 3.3-3.7% ash. When compared to soybean, bean has lower lysine and arginine values (17.6 g·kg -1 vs. 25.5 g·kg -1, respectively) and a low content of sulphur amino acids (6 g·kg -1 vs. 13.3 g·kg -1 of feed ration's dry matter) (Cerioli et al. 1998). Protein and starch degradability of the bean can be influenced by technological treatment. Aleksić et al. (1999a) tested the protein degradability of faba beans in the rumen of cannulated lactating cows. The rate of protein degradability was determined as more than 47%. Aguilera et al. (1992) reported lower degradability of protein by heat treatment (120 °C for 30 min) of bean compared to untreated bean. Benchaar et al. (1992) studied the effect of extruded bean, representing 45% of the feeding ration protein content, on digestion of nitrogenous substances and starch in the rumen and small intestine. The percentage of degradable protein in the intestine was 38% in extruded bean as compared with 33.5% in untreated bean. Cros et al. (1991) came to a similar conclusion and they found that adding extruded bean seeds to diet increases intestinal availability of proteins from the feed. The effect of bean heat treatment on amino acid composition was studied by Cros et al. (1992). Dairy cows fed heat-treated beans showed better utilization of amino acids in the sma...

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In situ evaluation of the ruminal and intestinal degradability of extruded whole horsebeans

Cited by 15 publications

References 6 publications

In situ evaluation of ruminal degradability and intestinal digestibility of extruded soybeans

In situ evaluation of ruminal degradability and intestinal digestibility of extruded soybeans

In situ evaluation of the ruminal and intestinal degradability of extruded whole lupin seed nitrogen

Performance and Metabolism of Dairy Cows Fed Bean Seeds (Vicia faba) with Different Levels of Anti-Nutritional Substances

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