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Comparative reproductive performance of Brahman and Santa Gertrudis cattle in a hot humid environment 1. Fertility and descriptive statistics

Published online by Cambridge University Press:  02 September 2010

M. B. Willis  and
A. Wilson
M. B. Willis
Affiliation:
Faculty of Agriculture, University of Newcastleupon Tyne NE1 7RU
A. Wilson
Affiliation:
Faculty of Agriculture, University of Newcastleupon Tyne NE1 7RU
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Summary

In a 15-year period (1956-1970) data were available from 192 Brahman cows exposed to bulls on 1409 occasions (1199 calvings) and from 155 Santa Gertrudis cows exposed 907 times (847 calvings). All were mated by natural service in the same herd in Cuba. Calving percentage and net calf crop significantly favoured the Santa Gertrudis with overall means of 92·7 and 85·3% for the two traits respectively. Parity, lactation status and year of calving significantly affected calving percentage with significant year × breed and status × parity interactions. Lactation status, year of calving, breed × year and status × parity interactions also affected net calf crop. Calf mortality was 6·41% in Brahmans and 5·64% in Santa Gertrudis but more of the latter breed were stillborn (41·7 v. 16·9% of all deaths). There were no breed effects on age at first or last calving, age at culling or calves per cow which were 38·5 months, 117·1 months, 130·1 months and 6·62 calves in Brahmans and 39·3, 111·5, 123·2 and 6·58 respectively in Santa Gertrudis. Twinning percentage was low (under 0·4%) and male births high (53·54%) in both breeds. Some 30% of cows lost at least one calf prior to weaning during their lifetime.

Type
Research Article
Information
Animal Production , Volume 18 , Issue 1 , February 1974 , pp. 35 - 42
Copyright
Copyright © British Society of Animal Science 1974

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References

REFERENCES

Barrios, M. E. 1970. Comportamiento reproductivo de un hato Santa Gertrudis en la costa sur de Guatemala. Thesis MVZ, Univ. San Carlos, Guatemala.Google Scholar
Cobb, E. H., Burns, W. C. and Koger, M. 1964. Comparative performance of British, Brahman and crossbred foundation cattle. J. Anim. Sci. 23: 848 (Abstr.).Google Scholar
Estrada, G. 1970. Comportamiento reproductivo de un hato Santa Gertrudis en una zona subtropical muy humeda. Thesis MVZ, Univ. San Carlos, Guatemala.Google Scholar
Fagerlin, P. T., Brinks, J. S. and Stonaker, H. H. 1968. Environmental effects on calving interval in Herefords. J. Anim. Sci. 27: 1103 (Abstr.).Google Scholar
Helman, M. B. 1969. Razas bovinas tropicales, seleccion Y cruzamiento. In Ganaderia Tropical (ed. Helman, M. B.). El Ateneo, Buenos Aires.Google Scholar
Iturbide, A. and Estrada, G. 1971. Caracteristicas reproductivas en un hato Santa Gertrudis en Guatemala. Mems Asoc. lat. am. Prod. anim. 6: 165 (Abstr.).Google Scholar
Kincaid, C. M. 1957. Calving percentages in S-10 experiment station herds based on a survey of all stations. Rep. Ann. Meeting S-10 Tech. committee, Gainesville, Fla.Google Scholar
Koger, M. 1967. Programmas de crianza para el ganado de carne en Latinoamerico. 1st conf. Latinoamerica sobra ganado de carne, Gainesville, Fla.Google Scholar
Lasater, D. B., Glimp, M. A. and Gregory, K. E. 1972. Age and weight at puberty and conception in different breeds and breed crosses of beef heifers. J. Anim. Sci. 34: 1031–1045.CrossRefGoogle Scholar
Linares, T. and Plasse, E. 1966. Caracteres reproductivos en un hato Brahman en Venezuela. Mems Asoc. lat.-am. Prod. anim. 1: 155–162.Google Scholar
Mahadevan, P., Harricharan, H. and Springer, B. G. F. 1972. The performance of Santa Gertrudis, Sahiwal, Brahman and crossbred animals in the intermediate savannah of Guyana. 1. General. J. agric. Sci., Camb. 79: 67–74.CrossRefGoogle Scholar
Meade, J. H. Jr, Warnick, A. C., Koger, M. and Reynolds, W. L. 1959. Genetic and environmental influences of pregnancy rate in beef cattle. J. Anim. Sci. 18: 1549 (Abstr.).Google Scholar
National Academy of Sciences. 1968. Prenatal and Postnatal Mortality in Cattle. National Academy of Sciences, Washington D.C.Google Scholar
Plasse, D. 1966. El Brahman Americano. Rev. Ganagrinco, Vol. 1.Google Scholar
Preston, T. R. and Willis, M. B. 1970. Intensive Beef Production. Pergamon Press, Oxford.Google Scholar
Reynolds, W. L. 1967. Breeds and reproduction. In Factors Affecting Calf Crop (ed. Cunha, T., Warnick, A. and Koger, M.), pp. 244–259. Univ. Fla. Press, Gainesville.Google Scholar
Rhoad, A. O. 1949. The Santa Gertrudis breed; the genesis and the genetics of a new breed of beef cattle. J. Hered. 40: 144–126.Google Scholar
Sanchez, C. A. 1969. Comportamiento de un hato Brahman en la costa sur de Guatemala. Thesis MVZ. Univ. San Carlos, Guatemala.Google Scholar
Searle, S. R. 1971. Linear Models. John Wiley, New York.Google Scholar
Temple, R. S. 1967. Reproductive performance in the South. In Factors Affecting Calf. Crop. (ed. Cuhna, T., Warnick, A. and Koger, M.), pp. 15–26. Univ. Fla. Press, Gainesville.Google Scholar
Warnick, A. C. 1963. Mothering ability. In Crossbreeding Beef Cattle (ed. Cuhna, T., Koger, M. and Warnick, A. C.), pp. 88–92. Univ. Fla. Press, Gainesville.Google Scholar
Warnick, A. C., Kirst, R. C., Burns, W. C. and Koger, M. 1967. Factors influencing pregnancy in beef cows. J. Anim. Sci. 26: 231 (Abstr.).Google Scholar
Warwick, E. J. 1967. Reproductive performance in world regions. In Factors Affecting Calf Crop (ed. Cuhna, T., Warwick, A. and Koger, M.), pp. 4–10. Univ. Fla. Press, Gainesville.Google Scholar
Willis, M. B. and Preston, T. R. 1969. The reproductive performance of four breeds of beef cows in Cuba. Rev. cubana Cienc. Agric. (Eng. ed.) 3: 78 (Abstr.).Google Scholar
Wilson, A. and Willis, M. B. 1974. Comparative reproductive performance of Brahman and Santa Gertrudis cattle in a hot humid environment. 2. Factors affecting calving interval. Anim. Prod. 18: 43–48.Google Scholar