Research on the chemical composition of Saanen goat colostrum.

摘要

Changes in chemical composition in Saanen goat colostrum were studied 3, 12, 24, 48, 72, 120 and 168 h after parturition. The concentrations of dry matter, fat, ash, lactose, protein and IgG at 3 h of lactation were 21.23%, 7.73%, 1.57%, 1.93%, 10.24% and 72.01 mg/mL respectively. Saanen goat colostrum contained very high concentrations of Ca, P and Mg, and very low concentrations of Zn, Fe, Cd, As, Pb and Hg. In Saanen goat colostrum, the total concentrations of 17 amino acids and 8 essential amino acids were 5796.6 mg/100 mL and 2567.7 mg/100 mL respectively. The concentrations of saturated fatty acids were 75.21%, and medium chain saturated fatty acids (C80, C100) were 19.84%.