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The effect of energy intake and mating weight on growth, carcass yield and litter size of female pigs

Published online by Cambridge University Press:  02 September 2010

F. D. DeB. Hovell ,
R. M. MacPherson ,
R. M. J. Crofts  and
K. Pennie
F. D. DeB. Hovell
Affiliation:
The Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
R. M. MacPherson
Affiliation:
The Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
R. M. J. Crofts
Affiliation:
The Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
K. Pennie
Affiliation:
The Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
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Summary

1. In a comparative slaughter experiment, 12 female pigs (six at 80 kg and six at 100 kg) were allocated at first oestrus to each of five treatments: Treatment 1, initial slaughter, or Treatments 2, 3 and 4, mated and given 19·5, 25·8 or 32·1 MJ ME/day for the last 100 days of pregnancy, or Treatment 5, not mated (virgin) and given 25·8 MJ ME/day over a similar period. Pigs on Treatments 2, 3, 4 and 5 were given the same amount of protein and were killed about 123 days after first oestrus. Piglets were removed at birth.

2. There was no evidence of any special effect of pregnancy in the stimulation of permanent maternal growth. The average live weight, ingesta-free body and carcass gains of the pair-fed, mated and virgin gilts (±SE of difference) were, respectively, 32·3 and 36·9 + 2·8, 27·5 and 27·6 ± 3·4, and 26·0 and 26·7 + 2·1 kg. There were no statistically significant differences between these two treatments in carcass composition, specific gravity or backfat thickness. The mated pigs had lighter livers (P < 0·01) and heavier reproductive tracts (P < 0·05), and lost about 9 kg within a week of parturition.

3. Increasing energy intake increased piglet birth weights (P<005) but had no effect on the number of piglets born. The pigs that were initially heavier (100 kg v. 80 kg) had 1·5 more piglets, though this was not statistically significant (P<0·1).

4. Although there was no special effect of pregnancy on permanent maternal growth, the conversion of food by the once-mated pig was very efficient if an allowance was made for the food cost of producing the piglets.

Type
Research Article
Information
Animal Production , Volume 25 , Issue 2 , October 1977 , pp. 233 - 245
Copyright
Copyright © British Society of Animal Science 1977

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References

REFERENCES

Alexandrowicz, S., Benedykcinski, S. and Kraupe, W. 1954. [Production of baby pigs from primiparous sows slaughtered after weaning a first litter.] Roczn. Naitk roln. B. 68: 283–296.Google Scholar
Atkinson, T., Fowler, V. R., Garton, G. A. and Lough, A. K. 1972. A rapid method for the accurate determination of lipid in animal tissues. Analyst., Lond. 97: 562–568.CrossRefGoogle ScholarPubMed
Blaxter, K. L. 1964. Protein metabolism and requirements in pregnancy and lactation. In Mammalian Protein Metabolism, vol. II (ed. Munro, H. N., Allison, J. B.), pp. 173–223. Academic Press, London.CrossRefGoogle Scholar
Brooks, P. H. and Cole, D. J. A. 1973. Meat production from pigs which have farrowed. 1. Reproductive performance and food conversion efficiency. Anim. Prod. 17: 305–315.Google Scholar
Brooks, P. H. and Cole, D. J. A. 1974. The effect of nutrition during the growing period and the oestrus cycle on the reproductive performance of the pig. Livestock Prod. Sci. 1: 7–20.CrossRefGoogle Scholar
Brooks, P. H., Cole, D. J. A. and Jennings, W. J. N. 1975. Meat production from pigs which have farrowed. 2. Carcass characteristics. Anim. Prod. 20: 123–131.Google Scholar
Buck, S. F. 1963. A comparison of pigs slaughtered at three different weights. 1. Carcass quality and performance. J. agric. Sci., Catnb. 60: 19–26.CrossRefGoogle Scholar
Crowley, J. P. 1973. The facts of once-bred heifer production. In The Maiden Female—a Means of Increasing Meat Production (ed. J. B. Owen), pp. 8–17. Proc. Symp. Univ. Aberdeen, 1972.Google Scholar
Davidson, J., Mathieson, J. and Boyne, A. W. 1970. The use of automation in determining nitrogen by the Kjeldahl method with final calculations by computer. Analyst, Lond. 95: 181–193.CrossRefGoogle ScholarPubMed
Elsley, F. W. H., Anderson, D. M., McDonald, I., MacPherson, R. M. and Smart, R. 1966. A comparison of the live-weight changes, nitrogen retention and carcass composition of pregnant and non-pregnant gilts. Anim. Prod. 8: 391–400.Google Scholar
Elsley, F. W. H. and MacPherson, R. M. 1972. Protein and amino acid requirements in pregnancy and lactation. In Pig Production (ed. Cole, D. J. A.), pp. 417–434. Butterworth, London.Google Scholar
English, P. R. 1973. Physical and economic considerations in breeding gilts for slaughter. In The Maiden Female—a Means of Increasing Meat Production, (ed. Owen, J. B.), pp. 28–68. Proc. Symp. Univ. Aberdeen, 1972.Google Scholar
Graves, W. E., Lauderdale, J. W., Kirkpatrick, R. L., First, N. L. and Casida, L. E. 1967. Tissue changes in the involuting uterus of the postpartum sow. J. Anim. Sci. 26: 365–371.CrossRefGoogle ScholarPubMed
Harkness, R. D. and Moralee, B. E. 1956. The time-course and route of loss of collagen from the rat's uterus during post-partum involution. J. Physiol., London. 132: 502–508.CrossRefGoogle ScholarPubMed
Harrington, G. 1958. Pig Carcass Evaluation. Tech. Commun. No. 12. Commonwealth Agricultural Bureaux, Farnham Royal, Bucks.Google Scholar
Heap, F. C. and Lodge, G. A. 1967. Changes in body composition of the sow during pregnancy. Anim. Prod. 9: 237–246.Google Scholar
Hovell, F. D. DeB. and MacPherson, R. M. 1974. The efficiency of meat and piglet production from early-bred and once-bred gilts. Proc. 25th A. Meet. Eur. Ass. Anim. Prod., Copenhagen.Google Scholar
Hovell, F. D. DeB. and MacPherson, R. M. 1975. Meat and piglet production from once-bred gilts. Proc. Br. Soc. Anim. Prod. (New Series) 4: 104 (Abstr.).Google Scholar
Hovell, F. D. DeB. and MacPherson, R. M. 1977. The thin sow. 1. Observations on the fecundity of sows when underfed for several parities. J. agric. Sci., Camb. In press.Google Scholar
Hovell, F. D. DeB., MacPherson, R. M., Crofts, R. M. J. and Smart, R. 1977. The effect of pregnancy, energy intake and mating weight on protein deposition and energy retention in female pigs. Anim. Prod. In press.Google Scholar
Kotarbinska, Maria and Kielanowski, J. 1973. A note on meat production from pigs slaughtered after first weaning a litter. Anim. Prod. 17: 317–320.Google Scholar
Lenkeit, W., Gutte, J. O., Warnecke, W. and Kirchhoff, W. 1955. Prolonged studies of external and internal metabolism of pregnant and lactating sows. 3. Relation of nitrogen retention during pregnancy to nitrogen turnover after birth when milk yield is high and when lactation is prevented. Z. Tierernahr. Futtermittelk. 10: 351–364.CrossRefGoogle Scholar
Lodge, G. A. 1972. Quantitative aspects of nutrition in pregnancy and lactation. In Pig Production (ed. Cole, D. J. A.), pp. 399–416. Butterworth, London.Google Scholar
MacPherson, R. M., Hovell, F. D. DeB. and Jones, A. S. 1977. Performance of sows first mated at puberty or second or third oestrus, and carcass assessment of once-bred gilts. Anim. Prod. 24: 333–342.Google Scholar
National Research Council. 1968. Nutrient Requirements of Domestic Animals. No. 2. Nutrient Requirements of Swine. National Academy of Sciences, Washington DC.Google Scholar
Pay, M. G. and Davies, T. E. 1973. Growth, food consumption and litter production of female pigs mated at puberty and at low body weights. Anim. Prod. 17: 85–91.Google Scholar
Salmon-Legagneur, E. 1965. [Some aspects of the nutritional relations between pregnancy and lactation in the sow.] Annls Zootech. 14: Hors-serie No. 1.Google Scholar
Signoret, J. P. 1972. The mating behaviour of the sow. In Pig Production (ed. Cole, D. J. A.), pp. 295–318. Butterworth, London.Google Scholar
Vanschoubroek, F. 1967. In Proc. Symp. Nutrition of Sows, Nottingham (ed. Bannerman, Mary), (Discussion, p. 41). Pig Industry Development Authority, London.Google Scholar