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7.1 Protein Digestion in Grazing Sheep

Published online by Cambridge University Press:  27 February 2018

J. L. Corbett ,
E. P. Furnival ,
M. W. Inskip  and
F. S. Pickering
J. L. Corbett
Affiliation:
Division of Animal Production, C.S.I.R.O., Armidale, N.S.W., 2350, Australia
E. P. Furnival
Affiliation:
Division of Animal Production, C.S.I.R.O., Armidale, N.S.W., 2350, Australia
M. W. Inskip
Affiliation:
Division of Animal Production, C.S.I.R.O., Armidale, N.S.W., 2350, Australia
F. S. Pickering
Affiliation:
Division of Animal Production, C.S.I.R.O., Armidale, N.S.W., 2350, Australia
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Extract

In 23 experiments, measurements were made over 4 or 5 day periods of the digestion of herbage by lambs (Expts 1-10 and 14-18, Table 7.1.1) and adult sheep (Expts 11-13 and 19-23) grazing phalaris (P. aquatica), lucerne and unfertilized native pastures. All 38 animals used (Corriedales) had rumen and simple abomasal cannulae; seven adult sheep also had a simple ileal cannula. Corbett, Furnival, Inskip, Perez and Pickering (1976) and Corbett (1981) have described the techniques used for estimating intakes of organic and digestible organic matter and nitrogen (OMI, DOMI, NI) and the fractional outflow rates (FOR/h) of liquid from the rumen, the rate and composition of digesta flows and microbial protein production by reference to intra-ruminally infused 103Ru-phenanthroline, 51CrEDTA and Na235S04.

Type
7. Theatre Presentations I
Information
BSAP Occasional Publication , Volume 6: Forage Protein in Ruminant Animal Production , 1982 , pp. 141 - 143
Copyright
Copyright © British Society of Animal Production 1982

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References

Corbett, J. L. 1981. Determination of the utilization of energy and nutrients by grazing animals. In Forage Evaluation: Concepts and Techniques (ed. Wheeler, J. L. anf Mochrie, R. D.), pp. 383–398. CSIRO and American Forage and Grassland Council, Melbourne.Google Scholar
Corbett, J. L., Furnival, E. P., Inskip, M. W., Perez, C. J. and Pickering, F. S. 1976. Nutrition and growth of lambs grazing lucerne or phalaris. Proc. Aust. Soc. Anim. Prod. 11: 329–332.Google Scholar
Hogan, J. P. and Weston, R. H. 1981. Laboratory methods for protein evaluation. In Forage Evaluation: Concepts and Techniques (ed. Wheeler, J. L. and Mochrie, R. D.), pp. 75–87. CSIRO and American Forage and Grassland Council, Melbourne.Google Scholar
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