II. - Flaked maize
digestion
in thegvowing pig
In
growing pigs, flaking
of maizesignificantly improves (P
<0 , 01 ) organic
matter and espe-.cially nitrogen digestibility
of a balanced feedcontaining
maize(8 7
or 81 p.ioo)
and fish meal(6
or 12 p.roo),
but it hasonly
an effect onnitrogen retention,
at the 12 p.ioo protein level (+
0.2 g Nretained/kg W . , 75).
In
gut
contents ofpigs
killed one or three hours after a test meal thefollowing
was noticedafter flaked maize
feeding :
- a
higher
water content in thegut,
- a much slower water flow from the stomach, where the
a-amylase activity was higher
andthe
pH
decrease later and more marked.- - in the small
intestine,
starchdegradation
was intensive(ro to 3 0
foldhigher
soluble carbo-hydrate concentrations)
and couldexplain
thehigher
water retention.Dynamics and hierarchy of vitamin A storage in the pig liver
R. FERRANDO, A. RANDOLPH P. C. BLIN I abovatoire de Recherches de la Claaive de Nutrition et Alimentation
École
nationale vétérinaired’Alfovt,
94701 MaisonsAlfort
In the
pig,
there seems to be arepletion hierarchy
of the liver withrespect
to vitamin A.The
right
lobe is the first one to berapidly
loaded and theSpigel lobe,
the last one.The
percentage
of vitamin A stored ascompared
to the doseingested
seems to belarger
thanin the rat.
