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The nutrition of the veal calf 5. Comparison of two margarine fats†

Published online by Cambridge University Press:  02 September 2010

J. H. B. Roy ,
I. J. F. Stobo ,
Helen J. Gaston ,
Susan M. Shotton  and
P. Ganderton
J. H. B. Roy
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
I. J. F. Stobo
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
Helen J. Gaston
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
Susan M. Shotton
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
P. Ganderton
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
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Summary

1. Twenty newborn Ayrshire male calves were used in a comparison of milk substitute diets containing two different margarine fats. The liquid diets were offered in two feeds daily ad libitum and the calves were slaughtered at 118 kg live weight.

2. The two diets consisted of reconstituted spray-dried skim milk powder containing 200 g margarine fat/kg. One fat contained coconut and palm oils (CP) and the other coconut, palm and groundnut oils (CPG). The essential fatty acid content of margarine CP was less than half that of margarine CPG.

3. The incidence of diarrhoea and of a high rectal temperature, and the severity of lung lesions tended to be higher, the incidence of nasal discharge was higher and daily dry-matter intake and liveweight gain were lower for calves given margarine CPG.

4. Digestibility and balance trials were made at 1, 4 and 10 weeks of age. Nitrogen balance and apparent digestibility of the fat and other nutrients were not affected by the source of margarine, but the digestibility of dry matter and of fat was highest at 4 weeks of age, and of protein was lowest at 1 week of age. Apparent absorption of ash and calcium declined with age and absolute calcium retention was highest at 4 weeks. Total plasma lipids at 13 weeks of age did not differ between treatments.

5. Age at slaughter was greater for calves given margarine CPG but dressed-carcass weight, killing-out percentage, perirenal fat deposition and kidney weight did not differ between treatments. Skin weight tended to be lower for the calves given margarine CPG. 6. It is suggested that the apparent increased susceptibility to infection of calves given margarine CPG was associated with its higher unsaturated fatty acid content.

Type
Research Article
Information
Animal Production , Volume 17 , Issue 2 , October 1973 , pp. 97 - 107
Copyright
Copyright © British Society of Animal Science 1973

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References

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