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The management of calves on an early-weaning system: the relationship of voluntary water intake to dry feed intake and live-weight gain to 5 weeks

Published online by Cambridge University Press:  02 September 2010

W. S. Thickett ,
N. H. Cuthbert ,
T. D. A. Brigstocke ,
M. A. Lindeman  and
P. N. Wilson
W. S. Thickett
Affiliation:
BOCM Silcock Ltd, Basing View, Basingstoke, Hampshire RG21 2EQ
N. H. Cuthbert
Affiliation:
BOCM Silcock Ltd, Basing View, Basingstoke, Hampshire RG21 2EQ
T. D. A. Brigstocke
Affiliation:
BOCM Silcock Ltd, Basing View, Basingstoke, Hampshire RG21 2EQ
M. A. Lindeman
Affiliation:
BOCM Silcock Ltd, Basing View, Basingstoke, Hampshire RG21 2EQ
P. N. Wilson
Affiliation:
BOCM Silcock Ltd, Basing View, Basingstoke, Hampshire RG21 2EQ
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Abstract

A trial compared the voluntary water intake of 72 purchased British Friesian bull calves fed at different nutrient intake levels by varying the type and strength of the milk replacer given to 5 weeks of age. There was no control group without water on offer. Water was offered from the 1st day the animals entered the unit. All calves received 4 1/day of either cows' milk (12 calves), milk replacer with 100 g fat per kg (24 calves), milk replacer with 170 g fat per kg (24 calves) or milk replacer with 200 g fat per kg (12 calves). Standard early-weaning pellets containing 190 g crude protein per kg and hay ad libitum were on offer from the 2nd day on the unit. Results indicated that voluntary intakes of water were highest with calves fed on cows' milk and lowest on the milk replacer with 100 g fat per kg given at the lowest mixing strength, although differences were only significant in week 5 (P ≤ 0·05). By covariance analysis, the effects of water intakes on live-weight gain and on pellet intake were examined. The regression coefficient of live-weight gain (weeks 0 to 5) (kg) on water intake (weeks 1 to 5) (1) was b= 0·056 (s.e. 0·021, P ≤ 0·01). The regression coefficient of pellet intake (weeks 0 to 5) (kg) on water consumption was: b= 0·082 (s.e. 0·031, P ≤ 0·01). There was thus a significant correlation of both live-weight gain and pellet intake with water intake. For each extra litre of water consumed per day, there was an extra pellet intake of 0·082 kg and an increase in live-weight gain of 0·056 kg. There was a significant difference in total water intake according to the initial live weight of the calf.

Type
Research Article
Information
Animal Production , Volume 33 , Issue 1 , August 1981 , pp. 25 - 30
Copyright
Copyright © British Society of Animal Science 1981

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References

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