Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-23T14:30:45.785Z Has data issue: false hasContentIssue false

Effect of successive ejaculations on semen characteristics in the buffalo

Published online by Cambridge University Press:  27 March 2009

E. S. E. Hafez
Affiliation:
Faculty of Agriculture, University of Cairo, Egypt
Y. H. Darwish
Affiliation:
Faculty of Agriculture, University of Cairo, Egypt

Extract

Semen samples were collected from buffalo bulls by a.v. at intervals of 24, 12, 8 and 2 hr., four consecutive ejaculates being collected for each bull in every treatment. Semen qualities were measured in fresh and stored ejaculate at 4° C. for 48 hr.

1. (a) In fresh semen, the average initial values were 3·12 ml. for volume, 645 × 103 for concentration per cubic millimetre, 2134 × 106 per ejaculate, 7·25 for motility, 80·1% for live spermatozoa and 21·1% for abnormals.

(b) Volume, concentration and percentage of live sperm were not affected by successive ejaculations.

(c) Motility started to decrease after the third collection in most cases.

(d) Percentage of abnormals was highly affected irrespective of interval of collection.

(e) When the interval of collection was short, enlarged middle piece of spermatozoa and detached galea capitis were observed.

2. (a) In stored semen, the average values were for motility 3·12%, for live sperm 64·5%, and for abnormals 27·4%.

(b) Storage caused a decrease in motility and an increase in percentage of abnormals, while it had no effect on percentage of live sperm.

(c) The rupture of head membrane of spermatozoa was observed in stored semen.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1956

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.)

References

REFERENCES

Bishop, M. W. H., Campbell, R. C., Hancock, J. L. & Walton, A. (1954). J. Agric. Sci. 44, 229.CrossRefGoogle Scholar
Hafez, E. S. E., Badreldin, A. L., Darwish, Y. H. (1955). J. Agric. Sci. 45, 283.CrossRefGoogle Scholar
Mahmoud, I. N. (1952). Res. Bull. Cairo Fac. Agric. no. 15.Google Scholar
Mann, T. (1948). J. Agric. Sci. 38, 323.CrossRefGoogle Scholar
McKenzie, F. F., Miller, J. C. & Bauguess, L. C. (1938). Res. Bull. Mo. Agric. Exp. Sta. no. 279.Google Scholar
Perry, E. J. (1947). The Artificial Insemination of Farm Animals. New Brunswick: Rutgers University Press.Google Scholar
Prabhu, S. S. & Bhattacharya, P. (1951). Ind. J. Vet. Sci. Anim. Husb. 21, 257.Google Scholar
Shukla, D. D. & Bhattacharya, P. (1949). Ind. J. Vet. Sci. Anim. Husb. 19, 161.Google Scholar