Hostname: page-component-8448b6f56d-sxzjt Total loading time: 0 Render date: 2024-04-20T01:20:53.664Z Has data issue: false hasContentIssue false
  • English
  • Français

The influence of feeding level from 20 to 45 kg live weight on the performance and body composition of female and entire male pigs

Published online by Cambridge University Press:  02 September 2010

R. G. Campbell ,
M. R. Taverner  and
D. M. Curic
R. G. Campbell
Affiliation:
Animal Research Institute, Princes Highway, Werribee, Victoria 3030, Australia
M. R. Taverner
Affiliation:
Animal Research Institute, Princes Highway, Werribee, Victoria 3030, Australia
D. M. Curic
Affiliation:
Animal Research Institute, Princes Highway, Werribee, Victoria 3030, Australia
Get access

Abstract

Forty-two pigs representing equal numbers of entire males and females were used to study the effects on the performance and body composition of four restricted levels of feeding (14·5, 20·3, 24·9 and 29·4 MJ digestible energy per day), and of offering the same diet (14·5 MJ digestible energy per kg and 210 g crude protein per kg) ad libitum between 20 and 45 kg live weight.

Over the four restricted feeding treatments there were no significant differences between the sexes for the performance and body composition of four restricted levels of feeding (14·5, 20·3, 24·9 and 29·4 MJ digestible energy per day), and of offering the same diet (14·5 MJ digestible energy per kg and 210 g crude protein per kg) ad libitum between 20 and 45 kg live weight.

Although ad libitum energy intake was the same for both sexes (34·2 MJ digestible energy per day), raising digestible energy intake from that provided by the highest restricted feeding treatment (29·4 MJ/day) to ad libitum resulted in marked differences between the sexes for performance and body composition.

For males, raising digestible energy intake from 29·3 to 34·2 MJ/day improved the rate of live-weight gain and protein deposition by 0·15 and 0·10 respectively but had no further effect on food conversion ratio or body fat. The same increase in digestible energy intake for females improved growth rate by only 0·065, had no further effect on the rate of protein deposition but increased markedly food conversion ratio and body fat.

Type
Research Article
Information
Animal Production , Volume 36 , Issue 2 , April 1983 , pp. 193 - 199
Copyright
Copyright © British Society of Animal Science 1983

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Agricultural Research Council. 1981. The Nutrient Requirements of Pigs. Commonwealth Agricultural Bureaux, Slough.Google Scholar
Association of Official Agricultural Chemists. 1965. Official Methods of Analysis of the Association of Official Agricultural Chemists. 10th ed. Association of Official Agricultural Chemists, Washington, DC.Google Scholar
Black, J. L. 1974. Manipulation of body composition through nutrition. Proc. Aust. Soc. Anim. Prod. 10: 211–218.Google Scholar
Braude, R. and Newport, M. J. 1973. Artificial rearing of pigs. 4. The replacement of butterfat in a whole-milk diet by either beef tallow, coconut oil or soya-bean oil. Br. J. Nutr. 29: 447–455.CrossRefGoogle ScholarPubMed
Burlacu, G., Bâia, G., Ionila, , Dumitra, , Moisa, , Doina, , Taşcenco, V., Vişan, I. and Stoica, I. 1973. Efficiency of the utilization of the energy of food in piglets, after weaning. J. agric. Sci., Camb. 81: 295–302.CrossRefGoogle Scholar
Carr, J. R., Boorman, K. N. and Cole, D. J. A. 1977. Nitrogen retention in the pig. Br. J. Nutr. 37: 143–155.CrossRefGoogle ScholarPubMed
Close, W. H., Stainer, M. W. and Sanz Sampelayo, M. R. 1979. The energy requirements for growth in the early-weaned pig. Proc. Nutr. Soc. 38: 47A (Abstr.).Google ScholarPubMed
Davies, J. L. and Lucas, I. A. M. 1972a. Responses to variation in dietary energy intakes by growing pigs. 2. The effects on feed conversion efficiency of changes in level of intake above maintenance. Anim. Prod. 15: 117–125.Google Scholar
Davies, J. L. and Lucas, I. A. M. 1972b. Responses to variations in dietary energy intakes by growing pigs. 3. Effect of level of intake of diets of differing protein and fat content on the performance of growing pigs. Anim. Prod. 15: 127–137.Google Scholar
Fuller, M. F. and Livingstone, R. M. 1978. Effects of progressive feed restriction on the growth and carcass composition of pigs: comparative responses of gilts and castrates. J. agric. Sci., Camb. 91: 337–341.CrossRefGoogle Scholar
Fuller, M. F., Webster, A. J. F., Macpherson, R. M. and Smith, J. S. 1976. Comparative aspects of the energy metabolism of Pietran and Large White by Landrace pigs during growth. In Energy Metabolism of Farm Animals. Proc. 7th Symp. Vichy, France (ed. Vermorel, M.), pp. 177–180. Bussac, Clermont–Ferrand. Eur. Assoc. Anim. Prod. Publ. 19.Google Scholar
Hodge, R. W. 1974. Efficiency of food conversion and body composition of the preruminant lamb and the young pig. Br. J. Nutr. 32: 113–126.CrossRefGoogle Scholar