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Comparison of a range of NE systems with data obtained from slaughter balance studies on 8-12 week old pigs

Published online by Cambridge University Press:  05 November 2021

V.E. Beattie ,
R.N. Weatherup ,
K.J. McCracken ,
S.G. McIlroy  and
R.W. Henry
V.E. Beattie
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down BT26 6DR, Northern Ireland
R.N. Weatherup
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down BT26 6DR, Northern Ireland
K.J. McCracken
Affiliation:
3 John Thompson and Sons Ltd, 35-39 York Road, Belfast BT15 3GW, Northern Ireland
S.G. McIlroy
Affiliation:
3 John Thompson and Sons Ltd, 35-39 York Road, Belfast BT15 3GW, Northern Ireland
R.W. Henry
Affiliation:
4 Nutec Ltd, 14 Victoria Road, Bangor Co Down BT29 5EX, Northern Ireland
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Extract

The gross energy of any pig feed is not completely available to the animal with losses occurring in faeces, urine, methane and heat. The NE system of feed evaluation should be more accurate in predicting animal performance since it takes into account these energy losses and the metabolic utilisation of energy. The NE system ascribes a relatively higher value to energy from fat and a lower value to energy from protein sources than the DE system. One method of deriving NE is to multiply DE by a factor of 0.71 (Noblet, 1996a). A wide range of more complex NE systems are currently in use involving individual feed ingredient data collected at various European research centres. This study was designed to compare a range of NE systems with data obtained from slaughter balance studies on 8-12 week old pigs using a range of diets for growing pigs differing in CP and DE levels.

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Programme
Information
Proceedings of the British Society of Animal Science , Volume 1998 , 1998 , pp. 154
Copyright
Copyright © The British Society of Animal Science 1998

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References

McCracken, K.J., Beattie, V.E., Weatherup, R.N., McIlroy, S.G. and Henry, R.W. (1997). Effects of diet energy density and protein (amino acid) content on intake, body composition and energy metabolism of boars and gilts fed ad libitum from 22-46 kg. 14th Symposium on Energy Metabolism of Farm Animals, Newcastle, Northern Ireland (In press).Google Scholar
Noblet, J. (1996a). Digestive and metabolic utilization of dietary energy in pig feeds: comparison of energy systems. Recent Advances in Animal Nutrition (Eds Garnsworthy, P.C., Wiseman, J., Haresign, W.), pp 207–231.Google Scholar
Centraal Veevoederbureau (1995). Veeroedertabel.Google Scholar
Danske Slagterier (1993). Foderstoffer til svin.Google Scholar
Institut Technique du Porc (1996). Tables d'alimentation pour les porcs.Google Scholar
Noblet, J. (1996b). Feed Tables. R. & H. Hall Technical Bulletin No. 6.Google Scholar