Proceedings of the New Zealand Society of Animal Production.
2000 60: 143-146
Feeding steers for 10 weeks on the residual turnip bulbs left
after grazing the green tops off with lambs plus low carotenoid
supplements, reduced carotenoid concentrations in the carcass fat by
38-43% and fat colour by 14-31% compared with steers grazing pasture.
The steers on the turnip bulbs were fed a daily supplement of 0.5 x 10
-1 IU of vitamin A in pelleted barley grain plus pasture
silage, hay, and malting corms. The turnip bulbs comprised approximately
42-47% of the diet. The growth rate of the steers on turnip bulbs was
higher (P< 0.001) than for steers on pasture (0.71 kg
head-1 day-1 versus 0.45 kg head-1
day-1). There were no effects of grazing the steers on turnip
bulbs on the other meat characteristics measured, including the odour
and taste.
Proceedings of the New Zealand Society of Animal Production.
2000 60: 143-146
