Hostname: page-component-54dcc4c588-ff9ft Total loading time: 0 Render date: 2025-09-26T01:57:31.796Z Has data issue: false hasContentIssue false
  • English
  • Français

Comparative reproductive performance of Brahman and Santa Gertrudis cattle in a hot humid environment 2. Factors affecting calving interval

Published online by Cambridge University Press:  02 September 2010

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

Summary

Over a 15-year period 1011 calving intervals from 187 Brahman (B) cows and 687 calving intervals from 146 Santa Gertrudis (SG) were examined. Year of calving significantly affected intervals in both breeds. Season of calving and parity of dam were both important in SG. Longer intervals were seen in B than SG (437 v. 406 days). Repeatability of calving interval was low (< 0·02). The average life-time calving interval was significantly related to total calf production in that cows with shorter mean intervals had more calves in their lifetime.

Information

Type
Research Article
Information
Animal Production , Volume 18 , Issue 1 , February 1974 , pp. 43 - 48
Copyright
Copyright © British Society of Animal Science 1974

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.)

Article purchase

Temporarily unavailable

References

REFERENCES

Andersen, H. 1966. Effect of season, age and herd size on fertility in cattle. Absereten Inst. Sterilitetsforsk. K. Vet-Og. Landbohojsk. 227–248.Google Scholar
Barrios, M. E. 1970. Comportamiento reproductive de un hato Santa Gertrudis en la costa sur de Guatemala. Thesis MVZ, Univ. San Carlos, Guatemala.Google Scholar
Cartwright, T. C. and Carpenter, J. A., JR. 1961. Effect of nursing habits on calf weights. J. Anim. Sci. 20: 904 (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
Harvey, W. R. 1960. Least squares analysis of data with unequal subclass numbers. United States Department of Agriculture, ARS-20–8.Google Scholar
Linares, T. and Plasse, D. 1966. Caracteres reproductivos en un hato Brahman de 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 savannahs of Guyana. 1. General. J. agric. Sci., Camb. 79: 67–74.CrossRefGoogle Scholar
Melton, A. A., Cartwright, T. C. and Nelson, L. A. 1967. Cow size as related to efficiency of calf gain. J. Anim. Sci. 26: 206 (Abstr.).Google Scholar
Milk Marketing Board. 1964. Some consequences of lactations of various lengths. Rep. Breeding Prod. Div. 14: 112–114.Google Scholar
Plasse, D., Koger, M. and Warnick, A. C. 1968. Reproductive behaviour of Bos indicus females in a subtropical environment. 3. Calving intervals, intervals from first exposure to conception and intervals from parturition to conception. J. Anim. Sci.. 27: 105–112.CrossRefGoogle Scholar
Sanchez, C. A. 1969. Comportamiento de un hato Brahman en la costa sur de Guatemala. Thesis MVZ, Univ. San Carlos, Guatemala.Google Scholar
Schalles, R. R. and Marlowe, T. J. 1967. Reproductive patterns in a herd of Angus cows. Livestock Research Report, Virginia Polytechnic Inst. No. 122: 51–54.Google Scholar
Searle, S. R. 1971. Linear Models. John Wiley, New York.Google Scholar
Seebeck, R. M. and Campion, E. J. 1964. The application of body weight data to performance testing of cattle. Aust. J. agric. Res. 15: 471–489.CrossRefGoogle Scholar
Sievers, C. F. 1967. The fertility of Pinzgauer stud cows in South West Africa. Proc. S. Afr. Soc. Anim. Prod. 61: 185–187.Google Scholar
Tabarelli, N., Barrios, H. M., Bizutti, O. and Reiner, U. R. 1966. Observations on the reproductive patterns in zebu cattle raised in range conditions in the state of S. Paulo, Brazil. Vth Panam. Congr. Vet. Med. Zootech. Caracas.Google Scholar
Willis, M. B. and Wilson, A. 1974. Comparative reproductive performance of Brahman and Santa Gertrudis cattle in a hot humid environment. 1. Fertility and descriptive statistics. Anim. Prod. 18: 35–42.Google Scholar