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Seasonal variation in some characteristics of seminal plasma of Sudan Desert sheep in the tropics

Published online by Cambridge University Press:  27 March 2009

K. A. A. Galil  and
A. K. A. Galil
K. A. A. Galil
Affiliation:
Department of Physiology and Biochemistry, Faculty of Veterinary Science, University of Khartoum, Khartoum North, Sudan
A. K. A. Galil
Affiliation:
Department of Physiology and Biochemistry, Faculty of Veterinary Science, University of Khartoum, Khartoum North, Sudan
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Summary

Some androgen-dependent constituents of seminal plasma of Sudan Desert rams were measured during the hot dry summer, the hot rainy season and the winter under tropical conditions in the Sudan. Higher concentrations of both fructose and citric acid were obtained between July and October during the rainy season and low values between January and April during winter, with marked monthly and seasonal variation in both characters. Considerable monthly variation in the hydrogen-ion concentration of semen was obtained with lower values between August and January and higher values between February and July. The androgenic status of the animals appears not to be decreased during the hot weather, but no explanation can be offered for the decrease during the winter.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 99 , Issue 1 , August 1982 , pp. 45 - 49
Copyright
Copyright © Cambridge University Press 1982

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References

REFERENCES

Amir, D. & Volcani, R. (1965). Seasonal fluctuations in the sexual activity of Awassi, German Mutton Merino, Corriedale, Border-Leicester and Dorset Horn rams. I. Seasonal changes in semen plasma volume and its fructose and citric acid concentrations. Journal of Agricultural Science, Cambridge 64, 115–120.CrossRefGoogle Scholar
Anderson, J. (1945). The semen of the ram. In The Semen of Animals and its Use for Artificial Insemination, p. 12. Edinburgh: –Commonwealth Bureau of Animal Breeding and Genetics.Google Scholar
Clegg, E. J. (1954). Interruption of arterial blood supply to the coagulating gland of the rat. Proceedings for the Society for the Study of Fertility 6, 7.Google Scholar
Cupps, P. T., Mcgowan, B., Rahlmann, D. R. & Reddon, A. R. (1960). Seasonal changes in the semen of rams. Journal of Animal Science 19, 208–213.Google Scholar
Emmens, C. W. (1959). Fertility in the male. In Progress in the Physiology of Farm Animals (ed. Hammond, J.), ch. 22, pp. 1047–1116. London: Butterworth.Google Scholar
Galil, K. A. A. & Galil, A. K. A. (1982). Seasonal variation in some characteristics of ejaculated spermatozoa of Sudan Desert sheep in the tropics. Journal of Agricultural Science, Cambridge 99, 35–43.Google Scholar
Glover, T. D. (1956). The effect of scrotal insulation and the influence of breeding season upon fructose concentration in the semen of the ram. Journal of Endocrinology 13, 235–242.Google Scholar
Huogins, C. (1945). The physiology of the prostate gland. Physiological Reviews 25, 281–306.Google Scholar
Humphrey, G. F. & Mann, T. (1948). Citric acid in semen. Nature, London 161, 352–353.Google Scholar
Humphrey, G. F. & Mann, T. (1949). Studies on the metabolism of semen. 5. Citric acid in semen. Biochemical Journal 44, 97–105.CrossRefGoogle Scholar
Ingram, D. L., Walters, D. E. & Legoe, K. F. (1975). Variations in behavioural thermoregulation in the young pig over 24 hour periods. Physiology and Behaviour 14, 689–695.CrossRefGoogle Scholar
Lindner, H. R. & Mann, T. (1960). Relationship between the content of androgenic steroids in the testes and the secretory activity of the seminal vesicle in the bull. II. Determination of fructose and citric acid in the seminal vesicles. Journal of Endocrinology 21, 341–360.Google Scholar
Mckenzie, F. F. & Berliner, V. (1937). Reproduction capacity of the rams. Research Bulletin. Missouri Agricultural Experiment Station, No. 265, 143 pp.Google Scholar
Mann, T. (1948). Fructose content and fructolysis in semen, practical application in evaluation of semen quality. Journal of Agricultural Science, Cambridge 38, 323–331.Google Scholar
Mann, T. (1964). The Biochemistry of Semen and of the Male Reproductive Tract. London: Methuen.Google Scholar
Mann, T. (1968). Evaluation of semen by chemical analysis. In The Artificial Insemination of Farm Animals (ed. Perry, E. J.), 4th edn, pp. 61–75. New Brunswick: Rutgers University Press.Google Scholar
Mann, T. (1974). Secretory function of the prostate, seminal vesicle and other male accessory organs of reproduction. Journal of Reproduction and Fertility 37, 179–188.CrossRefGoogle ScholarPubMed
Mann, T. (1975). Biochemistry of semen. In Handbook of Physiology Section 7, Endocrinology. Vol. V. Male Reproductive System (ed. Hamilton, D. W. and Seminal plasma of Sudan Desert sheep 49 R. O. Greep), pp. 461–471. Washington, D.C.: American Physiological Society.Google Scholar
Mann, T. & Lutwak-Mann, C. (1951). Secretory function of male accessory organs of reproduction in mammals. Physiological Reviews 31, 27–55.CrossRefGoogle ScholarPubMed
Mann, T. & Parson, U. (1950). Studies on the metabolism of semen. 6. Role of hormones. Effect of castration, hypophysectomy and diabetes. Relation between blood glucose and seminal fructose. Biochemical Journal 46, 440–450.Google Scholar
Mann, T., Short, R. V., Walton, A., Archer, R. K. & Miller, W. C. (1957). ‘The tail-end sample’ of stallion semen. Journal of Agricultural Science, Cambridge 49, 301–3121.Google Scholar
Milovanov, V. K. (1962). Biology of reproduction and artificial insemination of farm animals (translated title). Monograph. Seljskohozjstwelnoj. Literatury Zurnalow i Plakatow, Moskwa.Google Scholar
Moule, G. R., Braden, A. W. H. & Mattner, P. F. (1966). Effect of season nutrition and hormone treatment on the fructose content of the ram semen. Australian Journal of Agricultural Research 17, 923–931.Google Scholar
Nafornita, M. (1970). Contribution to the knowledge of fructose and total protein content and of the activity of some enzymes in ram semen before, during and after the mating season. Medicina Velerinaria 13, 463–474.Google Scholar
Pareek, P. K. (1974). Some seminal parameters of Bikaneri sheep. In Alti dell' VIII Simposio Internationale di Zootecnica, Italy. Societá Italiana per il Progresso della Zootecnica, 1974, pp. 801–811.Google Scholar
Salamon, S. (1964). The effect of frequent ejaculation in the ram on some semen characteristics. Australian Journal of Agricultural Research 15, 950–960.Google Scholar
Setchell, B. P. (1977). Male reproductive organs and semen. In Reproduction in Domestic Animals, 3rd edn (ed. Cole, H. H. and Cupps, P. T.), pp. 229–254. New York, San Francisco and London: Academic Press.Google Scholar
Setchell, B. P. (1978). The Mammalian Testis. London: Paul Elek.Google Scholar
Speck, J. F., Moulder, J. W. & JrEvans, F. A. (1946). The biochemistry of the malaria parasite. V. Mechanism of pyruvate oxidation in the malaria parasite. Journal of Biological Chemistry 164, 119–128.Google Scholar
Symington, R. B. (1961). Studies on the adaptability of three breeds of sheep to a tropical environment modified by altitude. V. The annual fluctuation on Rhodesian high veld. Journal of Agricultural Science, Cambridge 56, 165–171.Google Scholar
White, I. G. (1958). Biochemical aspects of mammalian semen. Animal Breeding Abstracts 26, 109–123.Google Scholar
White, I. G. (1969). Mammalian semen. In Reproduction in Farm Animals, 2nd edn (ed. Hafez, E. S. E.), pp. 39–60. Philadelphia: Lea and Febiger.Google Scholar
White, I. G. & Mcleod, J. (1963). Composition and physiology of semen. In Mechanism Concerned with Conception (ed. Hartman, C. G.). New York: Pergamon Press.Google Scholar