Colostrum Colostrum Colostrum (known colloquially as beestings, bisnings or first milk) is the first form of milk produced by the mammary glands of mammals (including many humans) immediately following delivery of the newborn. Most species will generate colostrum just prior to giving birth. Colostrum contains antibodies to protect the newborn against disease. In general, protein concentration in colostrum is substantially higher than in milk. Fat concentration is substantially higher in colostrum than in milk in some species, e.g. sheep and horses, but lower in colostrum than in milk in some other species, e.g. camels and humans. In swine, fat concentration of
Invariant of a binary form Invariant of a binary form In mathematical invariant theory, an invariant of a binary form is a polynomial in the coefficients of a binary form in two variables "x" and "y" that remains invariant under the special linear group acting on the variables "x" and "y". A binary form (of degree "n") is a homogeneous polynomial Σ ()"a""x""y" = "a""x" + ()"a""x""y" + ... + "a""y". The group "SL"(C) acts on these forms by taking "x" to "ax" + "by" and "y" to "cx" + "dy". This induces an action on the space spanned by "a", ..., "a" and on