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1998-11-01
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Fallon, R.J., Drennan, M.J., Production of red veal for the EU market, End of Project Reports, Teagasc, 1998.
Abstract
A summary of four experiments which used Holstein/Friesian bulls
and a fifth which used continental cross bulls to determine the
effect of feeding ad libitum concentrates on animal prefomance.
• The Barley soyabean meal ration provided consistent liveweight
gain (1.25 kg/day) and similar cold carcass weight (237 kg) in all
four experiments using Holstein and Friesian Bulls.
• The Low energy treatment group (Experiment 1) had a liveweight
gain of 1.14 kg/day and a cold carcass of 220 kg, i.e. 21 kg lower
than that achieved on the High energy treatment group which had
a liveweight gain of 1.26 kg/day and a cold carcass of 241 kg.
• Providing animals with a summer period outdoors at pasture compared
with a continuous period indoors, in general had the effect
of improving daily liveweight gain and feed conversion efficiency
when animals were offered ad libitum concentrate diet. The effect
was greatest when autumn-born calves spent the final 180 days
prior to slaughter at pasture.
• Restricting the concentrate allowance at pasture brought about a
1.5 unit improvement in FCR carcass, however, at a similar slaughter
age this treatment group produced carcasses that were 22 and
21 kg lighter than the control in two respective experiments.
• The current economic climate for beef production does not permit
the production of red veal in Ireland. However, when markets
develop in the Mediterranean countries there will be opportunities
to produce red veal carcasses for those markets using male bulls
from the Holstein/Friesian herds.
• Weaned continental cross suckler bulls slaughtered off an ad libitum
concentrate diet at 550 kg liveweight had a feed conversion
efficiency of 8.2 kg concentrate DM per kg carcass produced. The
corresponding value at 650 kg slaughter, liveweight was 9.5 kg.