Hostname: page-component-669899f699-vbsjw Total loading time: 0 Render date: 2025-04-25T07:33:56.445Z Has data issue: false hasContentIssue false
  • English
  • Français

Environmental factors affecting persistency of lactation in Egyptian buffaloes

Published online by Cambridge University Press:  27 March 2009

A. A. Asker  and
L. H. Bedeir
A. A. Asker
Affiliation:
Department of Animal Production, Ministry of Agriculture, Cairo
L. H. Bedeir
Affiliation:
Department of Animal Production, Ministry of Agriculture, Cairo
Get access Rights & Permissions [Opens in a new window]

Extract

A statistical analysis was undertaken to study persistency of lactation in buffaloes, using the milk records collected on a herd of buffaloes belonging to the Ministry of Agriculture at Sakha Experiment Station. The number of buffaloes included in this report was 328 animals having 722 lactations. A formula was developed for estimating persistency of lactation in buffaloes and results obtained are as follows.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 56 , Issue 1 , February 1961 , pp. 1 - 5
Copyright
Copyright © Cambridge University Press 1961

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

Anderson, B. L. & Bancroft, T. A. (1952). Statistical Theory in Research. McGraw-Hill Book Company Inc.Google Scholar
Asker, A. A., El-Itriby, A. A. & Fahmy, S. K. (1959). Trop. Agric. 28, 189.Google Scholar
Gaines, W. L. (1927). Bull. III. Agric. Exp. Sta. no. 288.Google Scholar
Gooch, M. (1935). J. Agric. Sci. 25, 71.Google Scholar
Johansson, J. & Hansson, A. (1940). Lungl. Lantbruk Sakademiens Tidskrift Ne. Stockholm.Google Scholar
Karth, K. P. R. (1934). Indian J. Vet. Sci. 4, 124.Google Scholar
Knapp, Bradfer Jr. (1956). Water Buffaloes in Egypt. A Review of Available Data on the Water Buffaloes. N.S.O.M.E.Google Scholar
Ludwick, T. M. (1943). Inheritance of Persistency in Lactation in Dairy Cattle. Ph.D. Thesis, Univ. of Minn., St Paul, Minnesota.Google Scholar
Ludwick, T. M. & Peterson, W. E. (1943). J. Dairy Sci. 26, 439.CrossRefGoogle Scholar
Ludwick, T. M. & Peterson, W. E. & Fitch, J. B. (1943). J. Dairy Sci. 26, 447.CrossRefGoogle Scholar
Mahadevan, P. (1951). J. Agric. Sci. 41, 89.CrossRefGoogle Scholar
Sana, Allah (1952). Factors Affecting Persistency of Milk Production in Dairy Cattle. Ph.D. Thesis Univ. of Minn., St Paul, Minnesota.Google Scholar
Sanders, H. G. (1930). J. Agric. Sci. 20, 145.CrossRefGoogle Scholar
Sikka, L. C. (1950). J. Dairy Res. 17, 231.Google Scholar
Snedecor, G. W. (1956). Statistical Methods, 5th ed.Ames, Iowa: The Iowa State College Press.Google Scholar