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A comparison of the live-weight changes, nitrogen retention and carcass composition of pregnant and non-pregnant gilts

Published online by Cambridge University Press:  02 September 2010

F. W. H. Elsley ,
D. M. Anderson ,
I. McDonald ,
R. M. MacPherson  and
R. Smart
F. W. H. Elsley
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
D. M. Anderson
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
I. McDonald
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
R. M. MacPherson
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
R. Smart
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
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Extract

1. Twelve gilts, six pregnant and six non-pregnant, were each given a daily ration of 2.2 kg. for a 110-day period.

2. Live-weight gain during this period was 53 kg. for the pregnant animals compared with 23 kg. for the non-pregnant animals.

3. Apparent digestibility of nitrogen and dry matter and the energy of digested feed did not differ significantly between the pregnant and non-pregnant animals.

4. Daily nitrogen retention was on average 9·2% higher for the pregnant animals, the difference between the two groups becoming progressively greater during the trial.

5. Highly significant differences were found in pre-slaughter live-weight, weight of reproductive tract and weight of mammary region. The difference in the weight of free draining blood was also significant. No difference was found in the weight of alimentary tract, visceral organs, head or decapitated carcass.

6. The carcasses of the pregnant animals contained less subcutaneous fat plus skin and more intermuscular fat plus muscle than those of the non-pregnant animals. The weights of bone did not differ.

Type
Research Article
Information
Animal Production , Volume 8 , Issue 3 , October 1966 , pp. 391 - 400
Copyright
Copyright © British Society of Animal Science 1966

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References

REFERENCES

Barcroft, J., Kennedy, J. A., & Mason, M. F., 1939. Blood volume and kindred properties in pregnant sheep. J. Physiol., 95: 159–172.CrossRefGoogle ScholarPubMed
Bogart, R., Sperling, G., Barnes, L. L., & Asdell, S. A., 1940. The influence of reproductive conditions upon growth in the female rat. Am. J. Physiol., 128: 355–371.CrossRefGoogle Scholar
Campbell, R. M., Innes, I. R., & Kosterlitz, H. W., 1953. Some dietary and hormonal effects on maternal, foetal and placental weights in the rat. J. Endocrinol., 9: 68–75.CrossRefGoogle ScholarPubMed
de Vllliers, V., Sørensen, P. H., Jakobsen, P. E., & Moustgaard, J., 1958. Ann. Rep., Sterility Res. Inst. Copenhagen, p. 139.Google Scholar
Duncan, D., 1965. In Recent Advances in Animal Nutrition. (Abrams, J. T., editor.) Churchill, London.Google Scholar
Evans, R. E., 1929. Protein and mineral metabolism in pregnant sows on a normal or high calcium diet compared with a calcium deficient diet. J. agric. Sci., Camb., 19: 752–798.Google Scholar
Hytten, F. E., & Leitch, I., 1964. The Physiology of Human Pregnancy. Blackwell Scientific Publications, Oxford.Google Scholar
Lenkeit, W., Gütte, J. O., & Streuter-Petermöller, A., 1955a. Langfristige Untersuchungen zum äusseren und inneren Stoffwechsel des graviden und laktierenden Schweines. 2. Mitteilung: Der Ablauf der N-Bilanz vom Ende der Gravidität bis zum Ende der Laktation bei gleichbleibender Ernährung. Z. Tierernähr. Futtermittelk., 10: 228–237.CrossRefGoogle Scholar
Lenkeit, W., Gütte, J. O., Warnecke, W., & Kirchhoff, W., 1955b. Langfristige Untersuchungen zum äusseren und inneren Stoffwechsel des graviden und laktierenden Schweines. 3. Mitteilung: Die Beziehung der N-Retention während der Gravidität zum N Umsatz nach der Geburt bie hoher Milchleistung und bei verhinderter Laktation. Z. Tierernähr. Futtermittelk., 10: 351–364.CrossRefGoogle Scholar
Lenkeit, W., Gütte, J. O., Kirchhoff, W., Soehngen, F. K., & Farriés, E., 1956. Langfristige Untersuchungen zum äusseren und inneren Stoffwechsel des graviden und laktierenden Schweines. 4. Mitteilung: Weitere Untersuchungen zur Abhängigkeit des N-Umsatzes während der Laktation von der Nährstoffversorgung während der Gravidität. Z. Tieremähr. Futtermittelk., 11: 337–352.CrossRefGoogle Scholar
Lodge, G. A., Elsley, F. W. H., & MacPherson, R. M., 1966. The effects of level of feeding of sows during pregnancy. I. Reproductive performance. Anim. Prod., 8: 29–38Google Scholar
Mackenzie, F. F. (1928). Growth and reproduction in swine. Res. Bull. Mo. agric. Exp. Sta. no. 118, pp. 1–67.Google Scholar
Mitchell, H. H., Carroll, W. E., Hamilton, T. S., & Hunt, G. E., 1931. Food requirements of pregnancy in swine. Bull. Ill. agric. Exp. Sta. no. 375, pp. 467–504.Google Scholar
Moustgaard, J., 1962. In Nutrition of Pigs and Poultry. (Morgan, J. T. and Lewis, D., editors) Butterworths: London.Google Scholar
Penzes, L., 1960. Vemties Kocak Feherje-(N) Raktarozasanak Kiserletes Vizsgalata, Allattenyesztes, 3: 43–64.Google Scholar
Pomeroy, R. W., 1960. Infertility and neonatal mortality in the sow. III. Neonatal mortality and foetal development. J. agric. Sci., Camb., 54: 31–56.Google Scholar
Rombauts, P., 1962. Evolution de l'anabolisme gravidique chez la truie en fonction de l'age de l'animal. Ann. Zootech., 11: 39–51.CrossRefGoogle Scholar
Salmon-Legagneur, E., & Jacquot, R., 1961a. Modifications corporelles entrainées par l'anabolisme gravidique chez la truie. C.R. Acad. Sci., 253: 544–546.Google Scholar
Salmon-Legagneur, E., & Jacquot, R., 1961b. Influence du niveau alimentaire sur le comportement nutritionnel de la truie gestante. C. R. Acad. Sci., 253: 1497–1499.Google Scholar
Salmon-Legagneur, E., 1962. Effet chronologique d'une modification du niveau alimentaire chez la truie gestante. Ann. Zootech., 11: 173–180.CrossRefGoogle Scholar
Salmon-Legagneur, E., & Rerat, A., 1962. In Nutrition of Pigs and Poultry. (Morgan, J. T. and Lewis, D., editors.) Butterworths: London.Google Scholar
Salmon-Legagneur, E., 1964. Etude de besoin qualitatif d'azote chez la truie en gestation et lactation. Comparison de deux proteines; Farine de poisson et arachide. Ann. Zootech., 13: 51–61.Google Scholar
Slonaker, J. R., 1927. The effect of different amounts of sexual indulgence in the albino rat. Am. J. Physiol., 82: 318–327.Google Scholar
Slonaker, J. R., 1929. Pseudopregnancy in the albino rat. Am. J. Physiol., 89: 406–416.CrossRefGoogle Scholar