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  • Title: The development and distribution of mucosal enzymes in the small intestine of the fetus and young foal.
    Author: Roberts MC.
    Journal: J Reprod Fertil Suppl; 1975 Oct; (23):717-23. PubMed ID: 1060871.
    Abstract:
    Lactase and cellobiase were detectable in the fetal intestine by the 3rd month of gestation, and although there was little change by the 9th month, maximal levels were reached at birth and steadily declined after 4 months. Conversely maltase, sucrase and trehalase were barely discernible in the fetus, maltase being present at low levels at birth, but all increased during the suckling period to attain adult levels by 7 months of age. Alkaline phosphatase activity matured earlier than did disaccharidase activity. Mucosal enzymes other than alkaline phosphatase were virtually absent from meconium and the large intestine. Continued ingestion of lactose could be detrimental in foals suffering from severe diarrhoea.
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