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Seasonal changes in semen characteristics of Marwari and Magra sheep of the Indian desert

Published online by Cambridge University Press:  27 March 2009

J. P. Mittal
J. P. Mittal
Affiliation:
Division of Animal Studies, Central Arid Zone Research Institute, Jodhpur, India
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Extract

The interactions of breed, season and environmental temperature influencing reproductive activity in Indian sheep breeds have been studied so far in some detail only with respect to the physical characteristics of the semen (Sahni & Roy, 1969; Mittal & Ghosh, 1979). The literature on the influence of these factors in determining the concentration of some of the important chemical constituents of ram semen is scanty, except for two recent reports by Nivsarkar, Dwarkanath & Pant (1977, 1978) in which data on fructose and citric acid concentration in electro-ejaculated semen of Magra rams, obtained during the winter and spring, have been presented. A need was felt for understanding the pattern of concentration of these constituents throughout the year in semen collected from rams under natural conditions. The present investigation was, therefore, undertaken to study the seasonal pattern of concentration of two important chemical constituents (fructose and citric acid) and physical (ejaculate volume and sperm concentration) characteristics of the naturally ejaculated semen of two important Indian desert sheep breeds, the Marwari and the Magra. A similar, though short-term, study on the semen of an exotic breed, the Corriedale, was also undertaken.

Type
Short Note
Information
The Journal of Agricultural Science , Volume 95 , Issue 3 , December 1980 , pp. 721 - 724
Copyright
Copyright © Cambridge University Press 1980

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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
Cupps, P. T., McGowan, B., Rahlmann, D. F., Reddon, A. R. & Weir, W. C. (1960). Seasonal changes in the semen of rams. Journal of Animal Science 19, 208–213.CrossRefGoogle Scholar
Humphry, G. F. & Mann, T. (1949). Studies on the metabolism of semen. 5. Citric acid in semen. Biochemical Journal 44, 97–105.CrossRefGoogle Scholar
Indian Council of Agricultural Research (1977). Handbook of Animal Husbandry, pp. 40–41. New Delhi: Indian Council of Agricultural Research.Google Scholar
Mann, T. (1964). The Biochemistry of Semen and of the Male Reproductive Tract, pp. 254–261. London: Methuen; New York: John Wiley and Sons.Google Scholar
Mittal, J. P. & Ghosh, P. K. (1979). Comparative semen characteristics of Corriedale, Marwari and Jaisalmeri rams maintained under hot arid conditions. Journal of Agricultural Science, Cambridge 92, 1–4.Google Scholar
Mittal, J. P. & Ghosh, P. K. (1980). A note on annual reproductive rhythm in Marwari sheep of the Rajasthan desert in India. Animal Production 30 (1), 1–4.Google Scholar
Nivsarkar, A. E., Dwarkanath, P. K. & Pant, K. P. (1977). Studies on the fructolysis of semen of Magra rams in breeding and non-breeding seasons. Indian Veterinary Journal 54, 896–901.Google Scholar
Nivsarkar, A. E., Dwakkanath, P. K. & Pant, K. P. (1978). Seasonal variation in the seminal citric acid concentration of Magra rams. Indian Veterinary Journal 55, 25–29.Google Scholar
Sahni, K. L. & Roy, A. (1967). A study on the sexual activity of Bikaneri sheep (Ovis aries L.) and conception rate through artificial insemination. Indian Journal of Veterinary Science 37, 269–272.Google Scholar
Sahni, K. L. & Roy, A. (1969). Influence of season on semen quality of rams and effects of dilutors and dilutions on in vitro preservation. Indian Journal of Animal Science 39, 1–14.Google Scholar
Salisbury, G. W. & Vandemark, N. L. (1961). Physiology of Reproduction and Artificial Insemination of Cattle, pp. 347–348. San Francisco and London: W. H. Freeman and Company.Google Scholar
Taneja, G. C. (1966). Fertility in sheep. 1. Conception rate in relation to lamb survival. Indian Veterinary Journal 43, 727–734.Google Scholar