The Rural Voice, 1988-10, Page 45NEWS
cultural production and processing in
Canada, the CFA added. The possibility
of establishing a formal commission of
inquiry to assess the effects of the FTA
and recommend action to assure the
viability of Canada's horticultural in-
dustry was explored.0
SHEEP VIRUS CAN
BE CONTROLLED
Two control methods have been
found effective in stemming the spread
of the maedivisina virus among sheep.
The respiratory disorder transmitted
through the colostrum to newborn
lambs affects the immune system of the
lamb, and may be related to poor milk
production.
The most effective means of control
is the isolation of new lambs at birth
from the rest of the flock.
But the more practical means of con-
trol on a farm level is the serological
testing of newborn lambs on a regular
basis during their first six months.0
INCREASE VITAMIN E,
RESEACHERS SAY
British researchers have increased
the amounts of selenium and Vitamin E
recommended for livestock to prevent
myopathy (white muscle disease), poor
growth, infertility, and susceptibility to
disease.
Recommendations by Britain's
Agriculture and Food Research Council
in 1980 were at least 10 to 15 milligrams
of Vitamin E in each kilogram of feed.
But at pregnancy and at turnout to
pasture in spring, the level should be
trebled, say researchers. Vitamin E in-
take should be raised for pregnant ani-
mals because it is not transferred in the
milk for lambs and calves.
To ensure a sufficient level, booster
injections are recommended at birth,
followed by another supplement at
weaning where feed or grazing land are
deficient in trace elements.
At turnout, a high intake of Vitamin
E is needed to counteract the damaging
breakdown products of polyunsaturated
fatty acids in lush spring grass. Sele-
nium is often connected with Vitamin E
because it acts an an anti-oxidant.0
LIQUID MANURE — CUSTOM SPREADING
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HURON DAIRY EQUIPMENT
R.R. 4, SEAFORTH, ONTARIO NOK 1 WO
527-1935
OCTOBER 1988 43