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Relationship between body weight and testicular size in buffalo bulls

Published online by Cambridge University Press:  27 March 2009

A. M. Yassen  and
M. N. Mahmoud
M. N. Mahmoud
Affiliation:
Animal Production Dept., Faculty of Agriculture, Alexandria University, Alexandria, Egypt
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Summary

The relationship between body weight, testes volume and circumference as computed for 42 slaughterhouse buffalo bulls (Bos bubalis). Animals ranged in body weight from 290 to 610 kg, testes volume (testes plus epididymides without scrota) from 102·5 to 296·7 ml and testes circumference (testes with scrota intact) from 21·31 cm. Relationships between body weight and testes volume, body weight and testes circumference, testes circumference and testes volume were all linear and correlations (r) were, 0·986, 0·932, 0·951 and were highly significant. Regression equations were calculated and it was clearly shown that buffalo bull testes volume is a function of body weight and could be easily predicted either from body weight or from testes circumference.

Comparisons between the testicular size of the buffalo bull (B. bubalis) and domestic bull (B. taurus) based on calculations from prediction equations showed that the testes size of the buffalo bull was half that of a domestic bull of similar body weight.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 78 , Issue 3 , June 1972 , pp. 367 - 370
Copyright
Copyright © Cambridge University Press 1972

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References

REFERENCES

Almquist, J. O. & Amann, R. P. (1961). Reproductive capacity of dairy bulls. II. Gonadal and extragonadal sperm reserves as determined by direct counts and depletion trials; dimensions and weight of genitalia. J. Dairy Sci. 44, 1668–78.Google Scholar
Amann, R. P. & Almquist, J. O. (1961). Reproductive capacity of dairy bulls. V. Detection of testicular deficiencies and requirements for experimentally evaluating testis function from semen characteristics. J. Dairy Sci. 44, 2283–91.Google Scholar
Amann, R. P. & Almquist, J. O. (1962 a). Reproductive capaoity of dairy bulls. VIII. Direct and indirect measurement of testicular sperm production. J. Dairy Sci. 45, 774–81.CrossRefGoogle Scholar
Amann, R. P. & Almquist, J. O. (1962 b). Reproductive capacity of dairy bulls. VI. Effect of unilateral vasectomy and ejaculation frequency on sperm reserves; aspects of epididymal physiology. J. Reprod. Fert. 3, 260–8.CrossRefGoogle ScholarPubMed
Bhattacharya, P. (1960). Buffaloes, in The Artificial Insemination of Farm Animals, pp. 155; ed. by Perry, E., 3rd revised edition, N.J: Rutgers University Press.Google Scholar
Boyd, L. J. & VanDemark, N. L. (1957). Spermatogenic capacity of the male bovine. I. A measurement technique. J. Dairy Sci. 40, 689–97.CrossRefGoogle Scholar
El-Itriby, A. A. & Asker, A. A. (1957). Buffalo bull in Egypt. Emp. J. exp. Agric. 25, 156–60.Google Scholar
Hahn, J., Foote, R. H. & Seidel, G. E. Jr (1969). Testicular growth and related sperm output in dairy bulls. J. Dairy Sci. 29, 41–7.Google Scholar
Hooker, C. W. (1944). The postnatal history and function of the interstitial cells of the testes of the bull. Am. J. Anat. 74, 1–37.CrossRefGoogle Scholar
Sayed, A. A. (1958). Some factors affecting the semen of cattle and buffaloes. Thesis, Cairo Univ., Faculty of Agriculture.Google Scholar
Steel, R. G. D. & Torrie, J. H. (1960). Principles and Procedures of Statistics. New York: McGraw-Hill Book Comp.Google Scholar
VanDemark, N. L. (1956). Quantitative aspects of, semen production in bulls. III. Int. Congr. Anim. Reprod., Cambridge, 4, 80–9.Google Scholar
VanDemark, N. L. & Mauger, R. E. (1964). Effect of energy intake on reproductive performance of dairy bulls. I. Growth, reproductive organs and puberty. J. Dairy Sci. 47, 798–802.CrossRefGoogle Scholar
Willett, E. L. & Ohms, J. I. (1957). Measurement of testicular size and its relation to production of spermatozoa by bulls. J. Dairy Sci. 40, 1559–69.CrossRefGoogle Scholar