SHORT COMMUNICATION
Secretion rate of milk constituents in B. taurus
x B. indicus cattle at five milking intervals
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Animal Nutrition Department, Faculty of Veterinary Medicine and Animal Science,
Universidad Autónoma de Yucatán,
P.O. Box 4-116 Itzimna, 97100, Mérida, Yucatán, México
Publication date: 2004-08-30
Corresponding author
C. A. Sandoval Castro
Animal Nutrition Department, Faculty of Veterinary Medicine and Animal Science,
Universidad Autónoma de Yucatán,
P.O. Box 4-116 Itzimna, 97100, Mérida, Yucatán, México
J. Anim. Feed Sci. 2004;13(Suppl. 1):515-518
KEYWORDS
ABSTRACT
Eight multiparous cows, calved within a 1.5 week interval, grazing star grass (Cynodon
nlemflensis), were milked at 3, 6, 9, 15 and 24 h time intervals. Secretion rate was measured four
times at two-weeks intervals. Milk protein content was not affected, but fat and lactose decreased
(P<0.0001) from 9 h onwards. Secretion rate and udder efficiency for all milk components started to
reduce between 9 and 15 h onwards.