Effects of soya-bean products on digestive processes in the gastrointestinal tract of preruminant calves

Sissons, J. W.

doi:10.1079/pns19820007

Cited by 39 publications

(37 citation statements)

References 54 publications

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“…The values recorded here (19-34%) were substantially higher than those found by others in calves (Seegraber and Morrill, 1986;Dawson et al, 1988 (Dawson et al, 1988;Mir et al, 1993). Predisposed calves are known to suffer from immune-mediated gut disturbances when fed insufficiently processed soyabean products (Sissons, 1982;reviews (Kilshaw and Slade, 1980). Absorption of D -xylose appeared to be reduced after the introduction of non-milk protein, including soya or fish protein, in milk substitutes (Seegraber and Morrill, 1986;Dawson et al, 1988).…”

contrasting

confidence: 43%

Assessment of gastrointestinal permeability to small marker probes in the preruminant calf

Pardal¹,

Lallès²,

André³

et al. 1995

Reprod. Nutr. Dev.

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Summary ― The intestinal permeability to markers was assessed in preruminant calves fed different milk substitutes containing skimmed milk powder or whey and soyabean products of differing antigenic activity as the protein sources. In Experiment 1, the 6 h urinary excretion of lactulose transiently decreased with the antigenic soyabean product but not that of sucrose or D -mannitol. In Experiment 2, the 6 h urinary excretion of sucrose and D -mannitol averaged 1-3%, regardless of age and dietary treatment. Cr-EDTA was recovered at rates of 2 and 4% after 6 and 24 h of urinary collection, respectively. The 24 h excretion of Cr-EDTA was lower in the calves fed the antigenic flour than in the controls after 2 weeks of experimental feeding (2.9 vs 6.0%, P < 0.05) but not thereafter. This transient decrease was also observed using D -xylose with the antigenic flour and with the non-antigenic concentrate (17 and 22% respectively vs 37%, P < 0.05). The

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contrasting

confidence: 43%

Assessment of gastrointestinal permeability to small marker probes in the preruminant calf

Pardal¹,

Lallès²,

André³

et al. 1995

Reprod. Nutr. Dev.

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“…In studies on calves fed heated soyabean flour these disorders included villous atrophy and oedema, abnormalities in the emptying of abomasal digesta and its rapid transit along the small intestine. Such animals also showed increased gut permeability to macromolecules and developed high titres of blood anti-soya antibodies (IgGl and sometimes IgE) (Sissons, 1982 ;Sissons and Thurston, 1984).…”

Section: Introductionmentioning

confidence: 99%

Effect of soya protein on digestive enzymes, gut hormone and anti-soya antibody plasma levels in the preruminant calf

Guilloteau¹,

Corring²,

Chayvialle³

et al. 1986

Reprod. Nutr. Dévelop.

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“…The SBM feed was as antigenic as raw (RSF) (Sissons, 1982). In conclusion, antigenic soya proteins escape ruminal digestion in the weaned calf.…”

Section: Resultsmentioning

confidence: 95%

“…Digesta were collected through weaning (Lall6s and Poncet, 1990). Immunoreactive glycinin (glyc) and [3-conglycinin (pcong) were assayed in feeds and digesta by ELISA (Heppell et al, 1987) (Sissons, 1982). In conclusion, antigenic soya proteins escape ruminal digestion in the weaned calf.…”

Section: Methodsmentioning

confidence: 99%

“…France; 2 AFRC, IGAP, Church Lane, Shinfield, Reading, RG2 9AG, UK) Glycinin and (3-conglycinin, major globulins of soyabean meal (SBM), appear to induce digestive disturbances in the preruminant calf fed SBM milk replacers and are resistant to digestion (Sissons, 1982). Ruminating calves fed SBM raise systemic antibodies against soya proteins (Lallès et al, 1991) but the extent to which these proteins escape digestion is unknown and was studied in the present work.…”

mentioning

confidence: 99%

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Soyabean antigen survival along the digestive tract of the dairy calf at weaning

Lallès¹,

Heppell²,

Sissons³

et al. 1991

Reprod. Nutr. Dévelop.

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Glycinin and (3-conglycinin, major globulins of soyabean meal (SBM), appear to induce digestive disturbances in the preruminant calf fed SBM milk replacers and are resistant to digestion (Sissons, 1982). Ruminating calves fed SBM raise systemic antibodies against soya proteins (Lallès et al, 1991) but the extent to which these proteins escape digestion is unknown and was studied in the present work. Material and MethodsA concentrate ration containing SBM was fed to 6 calves between 7-20 wk of age. After being fed whole-milk, the calves were weaned from 7-10 wk of age. Digesta were collected through weaning (Lall6s and Poncet, 1990). Immunoreactive glycinin (glyc) and [3-conglycinin (pcong) were assayed in feeds and digesta by ELISA (Heppell et al, 1987) (Sissons, 1982). In conclusion, antigenic soya proteins escape ruminal digestion in the weaned calf. They are probably involved in the prolonged stimulation of the systemic immune system and related antibody production observed (Lallès et al, 1991 ).

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Effects of soya-bean products on digestive processes in the gastrointestinal tract of preruminant calves

Cited by 39 publications

References 54 publications

Assessment of gastrointestinal permeability to small marker probes in the preruminant calf

Assessment of gastrointestinal permeability to small marker probes in the preruminant calf

Effect of soya protein on digestive enzymes, gut hormone and anti-soya antibody plasma levels in the preruminant calf

Soyabean antigen survival along the digestive tract of the dairy calf at weaning

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