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The effect of dietary concentrations of digestible energy on the performance and carcass characteristics of early-weaned pigs

Published online by Cambridge University Press:  02 September 2010

R. G. Campbell ,
M. R. Taverner  and
P. D. Mullaney
R. G. Campbell
Affiliation:
Department of Agriculture, S. S. Cameron Laboratory, Werribee, Victoria 3030, Australia
M. R. Taverner
Affiliation:
Department of Agriculture, S. S. Cameron Laboratory, Werribee, Victoria 3030, Australia
P. D. Mullaney
Affiliation:
Department of Agriculture, S. S. Cameron Laboratory, Werribee, Victoria 3030, Australia
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Summary

Fifty-four pigs weaned at 3 weeks of age were allocated at an average weight of 5·4 kg to two experiments to examine the effects of diets having digestible energy (DE) concentrations ranging from 2910 to 3940 kcal/kg.

In the first experiment pig growth performance and the dry-matter digestibility of the experimental diets were measured between 3 and 8 weeks of age. The composition of the carcass at 8 weeks of age was correlated with the composition of various carcass joints.

In the second experiment pig growth performance was measured over the live-weight range 5-4 to 20 kg.

The findings were:

1. Growth rate was linearly related to DE intake.

2. The optimum DE level for maximum growth was 3640 kcal/kg.

3. The efficiency of utilization of DE for growth did not vary in the first experiment but was poorest at a DE concentration of 3245 kcal/kg in the second.

4. The DE content of the diet had no significant effect on carcass characteristics at 8 weeks of age in the first experiment or at 20 kg live weight in the second.

5. The proportion of fat and lean in the 8-week carcass was significantly (P < 0·01) correlated with that of the shoulder joint.

Type
Research Article
Information
Animal Production , Volume 21 , Issue 3 , December 1975 , pp. 285 - 294
Copyright
Copyright © British Society of Animal Science 1975

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References

REFERENCES

Association of Official Agricultural Chemists. 1965. Methods of Analysis. 10th ed. Association of Official Agricultural Chemists, Washington DC.Google Scholar
Dickinson, A. G. 1960. Some genetic implications of maternal effects. J. agric. Sci., Camb. 54: 378–389.CrossRefGoogle Scholar
Elsley, F. W. H. 1963a. Studies of growth and development in the young pig. 1. The carcass composition at 56 days of age of pigs reared along different growth curves. J. agric. Sci., Camb. 61: 233–241.CrossRefGoogle Scholar
Elsley, F. W. H. 1963b. Studies of growth and development in the young pig. 2. A comparison of the performance to 200 Ib of pigs reared along different growth curves to 56 days of age. J. agric. Sci., Comb. 61: 243–251.CrossRefGoogle Scholar
Frape, D. L., Hays, V. N., Speer, V. C., Jones, J. D. and Catron, D. V. 1959. The effect of varied feed intake to 8 weeks of age on growth and development of pigs to 200 lb body weight. J. Anim. Sci. 18: 1429 (Abstr.).Google Scholar
Henry, Y. 1968. Effects of varying levels of cellulose or non-nutritive diluent in the diet on growth performance of the pig and nutrient digestibility. Proc. 2nd Wld Conf. Anim. Prod., Maryland.Google Scholar
Hill, F. W. and Anderson, D. L. 1958. Comparison of metabolizable energy and productive energy determinations with growing chicks. J. Nutr. 64: 587–603.CrossRefGoogle ScholarPubMed
Hodge, R. W. 1974. The nutritional efficiency and body composition of the pre-ruminant lamb and the young pig. Br. J. Nutr. 32: 113–125.CrossRefGoogle Scholar
Leibbrandt, V. D., Ewan, R. C., Speer, V. C. and Zimmerman, D. R. 1970. Effect of age and calorie-protein ratio on performance of baby pigs. J. Anim. Sci. 31: 1024 (Abstr.).Google Scholar
Likuski, H. J. A., Bowland, J. P. and Berg, R. T. 1961. Energy digestibility and nitrogen retention by pigs and rats fed diets containing non-nutritive diluents and varying in protein level. Can. J. Anim. Sci. 41: 89–101.CrossRefGoogle Scholar
McMeekan, C. P. 1940. Growth and development in the pig with special reference to carcass quality characters. J. agric. Sci., Camb. 30: 276–511.CrossRefGoogle Scholar
National Academy of Sciences/National Research Council. 1968. Nutrient Requirements of Swine. No. 2. 6th revised edition, Washington, D.C.Google Scholar
Nielsen, H. E. 1964. Effects in bacon pigs of different levels of nutrition to 20 kg body weight. Anim. Prod. 9: 301–308.Google Scholar
O'Grady, J. F. and Bowland, J. P. 1972. Response of early weaned pigs to diets of different digestible energy concentrations and the effects of cereal source and added molasses on performance. Can. J. Anim. Sci. 52: 87–97.CrossRefGoogle Scholar
Owen, J. B. and Ridgman, W. J. 1967. The effect of dietary energy content on the voluntary intake of pigs. Anim. Prod. 9: 107–113.Google Scholar
Owen, J. B. and Ridgman, W. J. 1968. Further studies on the effect of dietary energy content on the voluntary intake of pigs. Anim. Prod. 10: 85–91.CrossRefGoogle Scholar
Vanschonbroek, F. X., De Wilde, R. O. and Van Spaendouek, R. L. 1965. The level of feeding of suckled pigs on subsequent performance during fattening. Anim. Prod. 7: 111–118.Google Scholar
Whitelaw, A. W. W., Elsley, F. W. H., Jones, A. S. and Boyne, A. W. 1966. The effect of protein level in creep feed on the growth rate and body composition of suckling pigs. J. agric. Sci., Camb. 66: 203–209.CrossRefGoogle Scholar