In Situ Evaluation of the Ruminal and Intestinal Digestibility of Heat-Treated Whole Cottonseeds

Arieli, A.; Ben-Moshe, A; Zamwel, S.; Tagari, H.

doi:10.3168/jds.s0022-0302(89)79227-4

Cited by 41 publications

(21 citation statements)

References 16 publications

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“…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: 64%

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: 64%

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

Nowak¹,

Michalak²,

Wylegała³

2005

CZECH J ANIM SCI

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“…Its lower digestibility may be related to its rapid sedimentation in the rumen. In line with this reasoning was the low in sacco digestion of CP in the rumen found with control whole seeds (Table 2), being less than half of that found for ground WCS (Arieli et al, 1989).…”

Section: Discussionsupporting

confidence: 49%

“…After incubation, two bags were rinsed and dried. The other two bags were inserted through the duodenal cannula, as described by Arieli et al (1989). Eight bags per day, from the different treatments, were inserted randomly at a rate of two bags per h to the duodenal cannula.…”

Section: In Sacco Trialmentioning

confidence: 99%

The effect of heating and NaOH treatments on the nutritive value of nonlinted whole cottonseeds

Arieli¹,

Aharoni²,

Tagari³

et al. 1996

J. Anim. Feed Sci.

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The effect of treating nonlinted whole Pima cottonseeds (WCS) with heat, NaOH, or their combination on digestive tract digestibility in dairy cows, was studied using the mobile dacron bag technique. NaOH treatment increased ruminal DM disappearance from WCS. For DM there was an interaction, between heat treatment and incubation time. Interactions of NaOH x heat and heat x incubation time were found for ruminal CP disappearance. Heat treatment decreased ruminal CP disappearance. With WCS which was heat-treated in the presence of NaOH, ruminal CP disappearance decreased. NaOH and heat treatments of WCS, respectively, increased and decreased intestinal DM disappearance. These respective treatments also increased and decreased intestinal CP disappearance. NaOH and heat treatments of WCS, respectively, increased and decreased total tract DM and CP disappearance. It was concluded that a combination of NaOH and heat treatments may protect nonlinted WCS from excessive ruminal CP degradation and deliver more nutrients to the intestine.

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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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In Situ Evaluation of the Ruminal and Intestinal Digestibility of Heat-Treated Whole Cottonseeds

Cited by 41 publications

References 16 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

The effect of heating and NaOH treatments on the nutritive value of nonlinted whole cottonseeds

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

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