R. Bras. Zootec.01/Sep/2008;37(9):1674-8.
Effect of parturition order and milking time in the composition and production of the colostrum and transition milk of Saanen goats
DOI: 10.1590/S1516-35982008000900021
Aiming to study the influence of parturition order and milking time in the production and physical-chemical composition of colostrum and transition milk secretion of Saanen goats, three groups of animals were used (16 from the first parturition; 17 from the second and 8 from the third or more parturitions) and samples were collected at zero, 12 and 24 h after kidding. Parturition order did not interfere in colostrum and transition milk secretion productions, neither in the studied characteristics (acidity, density, fat, total dry extract and total protein), except for pH, which differ (6.70; 6.50; 6.46) among goats of 3rd or more, 1st and 2nd parturition, respectively. Milking time influenced fat contents (8.29 and 5.14%); total dry extract (10.52 and 6.68%); total protein (9.24 and 4.37%); acidity (46.1 and 25.1ºD) in the period from 0 and 24h post kidding, respectively. Parturition order did not affected milky secretion production and physical-chemical composition in the first 24 hours post kidding, except for pH.
Keywords: acidity; fat, goat; physical-chemical; total protein