[Digestion of pea and soya proteins in the preruminant calf. I. Circulating levels of nutrients, antibody formation and intestinal permeability to macromolecules].
Three milk-substitutes (control, pea and soya-bean)were given to 6 preruminant calves. In the control diet protein was almost entirely provided by skim milk powder. In the pea diet a pregelatinized dehulled pea flour provided 33.5% of the protein, the remainder being supplied by skim milk powder. In the soya-bean diet, 73.2% of the protein were provided by a soya-bean isolate and the remainder by whey powder. The concentrations of plasma triglycerides and the free alpha-amino nitrogen in the peripheral blood were lower with the pea and soya-bean diets than with the control diet before the morning meal, but became higher after feeding. That suggested a faster abomasal emptying of fat and protein with the pea and especially the soya-bean diet. Systemic antibody responses were induced against pea protein but not against soya-bean protein. No effect of the diet on the plasma concentration of immunoreactive beta-lactoglobulin was apparent after 6 days, suggesting there was no important change in gut permeability at least at that time.
Nunes do Prado
I
I
INRA, Laboratoire du Jeune Ruminant, Rennes, France.
Toullec
R
R
Lallès
J P
JP
Guéguen
J
J
Hingand
J
J
Guilloteau
P
P
D000818:Animals; D000906:Antibodies / Q000032:analysis*; D001786:Blood Glucose / Q000378:metabolism; D002417:Cattle / Q000254:growth & development / Q000502:physiology*; D002463:Cell Membrane Permeability; D004044:Dietary Proteins / Q000276:immunology / Q000378:metabolism*; D004063:Digestion / Q000502:physiology*; D007887:Fabaceae / Q000276:immunology; D007408:Intestinal Absorption / Q000502:physiology*; D007782:Lactoglobulins / Q000097:blood; D008297:Male; D009584:Nitrogen / Q000097:blood; D014674:Plant Proteins, Dietary / Q000276:immunology / Q000378:metabolism*; D010946:Plants, Medicinal; D030262:Soybean Proteins; D014280:Triglycerides / Q000097:blood
D000906:Antibodies; D001786:Blood Glucose; D004044:Dietary Proteins; D007782:Lactoglobulins; D014674:Plant Proteins, Dietary; D030262:Soybean Proteins; D014280:Triglycerides; D009584:Nitrogen
Digestion des protéines de pois et do soja chez le veau préruminant. I. Taux circulants de nutriments, formation d'anticorps et perméabilité intestinale aux macromolécules.