01467naa a2200325 a 450000100080000000500110000800800410001902400350006010000150009524501320011026000090024252005920025165000160084365000110085965000140087065000130088465000120089765000110090965000110092065000090093165000180094065000180095865000120097665300110098865300180099970000150101770000180103270000240105077300670107421643252024-05-20       1990    bl uuuu     u00u1 u    #d7 a10.1017/s00220299000294962DOI1 aDOREAU, M.  aYield and composition of milk from lactating maresbeffect of lactation stage and individual differencesh[electronic resource]  c1990  aAbstract: The yields and composition of milk from nursing mares were studied during the first two months of lactation in 11 mares of heavy breeds (784 kg). Daily yield increased from 21.7 to 24.6 kg between weeks 1 and 8 of lactation. Fat, protein, gross energy and Ca concentrations significantly decreased when lactose content increased during this period. Individual variations were higher for yield than for composition. Casein, whey protein and non-protein N (56, 34 and 10% of crude protein, respectively) and amino acid composition did not vary between weeks 1 and 8 of lactation.  aAmino acids  aCasein  aChemistry  aDrinking  aFemales  aHorses  aLipids  aMilk  aMilk analysis  aMilk proteins  aLactose  aEating  aWhey Proteins1 aBOULOT, S.1 aBARLET, J. P.1 aPATUREAU-MIRAND, P.  tJournal of Dairy Researchgv. 57, n. 4, p. 449-454, Nov. 1990.