P. Lebzien et al., Research note: Effect of duration of the collection period on the estimated digestibility in dairy cows, ARCH ANIM N, 54(3), 2001, pp. 261-264
Citations number
6
Categorie Soggetti
Animal Sciences
Journal title
ARCHIVES OF ANIMAL NUTRITION-ARCHIV FUR TIERERNAHRUNG
A digestion trial was performed with 14 lactating Friesian dairy cows to co
mpare the estimated digestibility of crude nutrients after collecting the f
aeces for 5, 7 and 9 d. The experimental ration consisted of grass silage (
7.3 kg DM) and concentrate (10.9 kg DM). Animals were adapted to the ration
for 14 d. There was no effect of the duration of the collection period on
the estimated mean digestibility of crude nutrients and on the respective s
tandard deviation. In consequence, in digestibility trials with cows the co
llection period must not exceed 5 d.