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Effect of feeding frequency on plasma insulin concentration, live weight gain and carcass composition in growing Holstein bull calves

Published online by Cambridge University Press:  23 November 2017

Armin Towhidi ,
Abbas Khoshsokhan ,
Abolfazl Zali  and
Reza Masoumi
Armin Towhidi*
Affiliation:
Department of Animal Science, University of Tehran, Karaj, Tehran, Iran
Abbas Khoshsokhan
Affiliation:
Department of Animal Science, University of Tehran, Karaj, Tehran, Iran
Abolfazl Zali
Affiliation:
Department of Animal Science, University of Tehran, Karaj, Tehran, Iran
Reza Masoumi
Affiliation:
Department of Animal Science, University of Tehran, Karaj, Tehran, Iran
*
Email:[email protected]
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Extract

Increase of feeding frequency in cattle decreased insulin level and increased plasma glucagon concentration and consequently prevented milk fat reduction during consuming of high concentration rations (Sutton et al. 1986). It is also indicated that feeding of cows for six times per day instead of two times per day decreased insulin, fatty acids and butyrate level and increased GH and glucose concentration (Sutton et al. 1988). These changes may prevent milk fat reduction. Increased propionate concentration can stimulate insulin secretion in ruminants (Jenny et al., 1972). Increased insulin secretion will stimulate glucose and fatty acid absorption and consequently will increase lipogenesis and reduce lipolysis in adipose tissue. In lactating cows, insulin usually decreases fatty acid availability for milk fat synthesis (Foster and McGarry, 2000). Previous studies have shown positive effect of increased feeding frequency on reduction of fat synthesis and deposition in body. The aim of this study was to investigate the effect of feeding frequency on insulin secretion, body weight and carcass composition in fattening Holstein bull calves.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2007 , April 2007 , pp. 128
Copyright
Copyright © The British Society of Animal Science 2007

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References

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