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Conception rates of beef cattle in Botswana following synchronization of oestrus with cloprostenol

Published online by Cambridge University Press:  02 September 2010

N. G. Buck ,
D. Light  and
A. D. Makobo
N. G. Buck
Affiliation:
Animal Production Research Unit, Ministry of Agriculture, Gaborone, Botswana
D. Light
Affiliation:
Animal Production Research Unit, Ministry of Agriculture, Gaborone, Botswana
A. D. Makobo
Affiliation:
Animal Production Research Unit, Ministry of Agriculture, Gaborone, Botswana
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Abstract

In three trials conducted in 3 successive years, Africander, Brahman, Tswana, Tuli and crossbred cattle were injected intramuscularly with 500 jug of cloprostenol on two occasions 11 days apart to synchronize oestrus. The cattle were inseminated 72 and 96 h after the second injection. Controls of the same breeds were exposed to natural service for a period of 22 days. In all trials the conception rate to natural service was significantly higher (P < 0·01).

Conception rates to both breeding methods were highest in Tuli and crossbred cattle and lowest in the Africander and Brahman. Non-lactating cows showed higher fertility than suckling cows and maiden heifers.

Vasectomized bulls used in one trial were shown to be useful in the selection of breeding cows suitable for oestrus synchronization. Further studies are justified to maximize the benefits of a potentially valuable method of breeding beef cattle in ranching conditions.

Type
Research Article
Information
Animal Production , Volume 30 , Issue 1 , February 1980 , pp. 61 - 67
Copyright
Copyright © British Society of Animal Science 1980

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References

REFERENCES

Buck, N. G., Light, D., Rutherford, A., Miller, M., Rennie, T. W., Pratchett, D., Capper, B. S. and Trail, J. C. M. 1976. Environmental factors affecting beef cow reproductive performance in Botswana. Anim. Prod. 23: 357–363.Google Scholar
Buck, N. G., Serema, L. E. and Staugaard, H. G. 1975. Artificial insemination in Botswana. Br. vet. J. 131: 385–390.Google Scholar
Cooper, M. J. 1974. Control of oestrous cycles of heifers with a synthetic prostaglandin analogue. Vet. Rec. 95: 200–203.CrossRefGoogle ScholarPubMed
Cooper, M. J. 1976. The use of prostaglandins in the breeding management of cattle. In Proc. 27th A. Meet. Eur. Ass. Anim. Prod., Zürich.Google Scholar
Cooper, M. J., Hammond, D., Harker, D. B. and Jackson, P. S. 1976. Control of the bovine oestrous cycle with ICI 80996 (cloprostenol). Field results in 3,810 beef cattle. In VIIIth int. Congr. Anim. Reprod. Artificial Insemination, Krakow.Google Scholar
Folka, J., Motlik, J. and Pavlok, A. 1978. Heat and conception rat e after synchroni-sation of oestrus with cloprostenol. Vet. Rec. 103: 52–53.CrossRefGoogle Scholar
Hafs, H. D., Manns, J. F. and Drew, Bridget. 1975. Onset of oestrus and fertility of dairy heifers and suckled beef cows treated with prostaglandin F2a. Anim. Prod. 21: 13–20.Google Scholar
Harvey, W. R. 1960. Least squares analysis of data with unequal sub-class numbers. U.S. Dep. Agric, ARS—20—8 (Mimeograph).Google Scholar
Lauderdale, J. W., Seguin, B. E., Stellflug, J. N., Chenault, J. R., Thatcher, W. W., Vincent, C. K. and Loyancano, A. F. 1974. Fertility of cattle following PGF2injection. J. Anim. Sci. 38: 964–967.CrossRefGoogle Scholar
Louis, T. M., Hafs, H. D. and Stellflug, J. N. 1975. Control of ovulation, fertility and endocrine response after prostaglandin F2a, in cattle. Annls Biol. anim. Biochim. Biophys. 15: 427–436.CrossRefGoogle Scholar
Roche, J. F., Gosling, J. and Prendiville, D. 1978. Accuracy of different methods of pregnancy diagnosis. Anim. Breed. Abstr. 46: 609 (Abstr.).Google Scholar
Rollinson, D. H. L. 1971. Further development of artificial insemination in tropical areas. Anim. Breed. Abstr. 39: 407–427.Google Scholar
Steenkamp, J. D. G., van der Horst, Conny and Andrew, M. J. H. 1975. Reconception n i grade and pedigree Africander cows of different sizes—post partum factors influencing reconception. S. Afr. J. Anim. Sci. 5: 103–110.Google Scholar
Trail, J. C. M., Buck, N. G., Light, D., Rennie, T. W., Rutherford, A., Miller, M., Pratchett, D. and Capper, B. S. 1977. Productivity of Africander, Tswana, Tuli and crossbred beef cattle in Botswana. Anim. Prod. 24: 57–62.Google Scholar
Trail, J. C. M., Sacker, G. D. and Fisher, I. L. 1971. Crossbreeding beef cattle in western Uganda. 1. Performance of Ankole, Boran and Zebu cows. Anim. Prod. 13: 127–141.Google Scholar