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An evaluation of the growth promoting effect of the lactoperoxidase system in newborn calves

Published online by Cambridge University Press:  02 September 2010

B. Reiter ,
Rosemary J. Fulford ,
Valerie M. Marshall ,
N. Yarrow ,
M. J. Ducker  and
Maud Knutsson
B. Reiter
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9AT
Rosemary J. Fulford
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9AT
Valerie M. Marshall
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9AT
N. Yarrow
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9AT
M. J. Ducker
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9AT
Maud Knutsson
Affiliation:
Ewos AB, Sweden
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Abstract

Results are reported from four trials in which neonatal calves were given either whole milk or milk substitute containing the lactoperoxidase system.

Trial 1 was a pilot trial conducted in Sweden in which calves given whole milk with the lactoperoxidase system gained significantly more weight than controls (P < 0·05). Trials 2, 3 and 4 were carried out in successive years at the National Institute for Research in Dairying, using large numbers of newborn, female Friesian calves. In trial 2 a significant positive effect of the lactoperoxidase system with whole milk on live-weight gain was established by 3 weeks of age (P < 0·05) and sustained until weaning at 5 weeks. There was no significant effect of the lactoperoxidase system for the milk substitute treatment. In trial 3 the whole milk comparison from trial 2 was repeated. There was a significant positive effect of the lactoperoxidase system on the live-weight change after 2 weeks of age only (P < 0·05). In trial 4 two different methods of activating the lactoperoxidase system were compared for calves given whole milk. There was no effect of either method on the live-weight gain of the calves. However, as the levels of scouring were extremely low for all calves, a comparison of the two methods of activating the lactoperoxidase system was not justified. The combined results from trials 2, 3 and 4 confirmed that the lactoperoxidase system significantly increased the live-weight gain of calves given whole milk, despite the fact that the overall level of mortality and incidence of scouring was low in these trials.

Type
Research Article
Information
Animal Production , Volume 32 , Issue 3 , June 1981 , pp. 297 - 306
Copyright
Copyright © British Society of Animal Science 1981

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References

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