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The testicular and epididymal changes in the soft-furred field rat,Millardia meltada (Gray) in relation to some environmental factors

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Proceedings: Animal Sciences

Abstract

The annual reproductive changes in the testes and epididymis of the soft-furred field rat,Millardia meltada have been investigated. The males of this species are sexually quiescent between January and April. Two peaks of highest reproductive activity occur annually in October and December. Interstitial cells show seasonal activity which approximately parallels the condition of the testes and epididymis. A correlation of these changes with the environmental conditions during 1977–78 indicates that the lowest temperature, shortest daylength and natural conditions occurring after the rainfall are congenial for reproduction of this species.

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References

  • Amoroso E C and Marshall F H A 1960 External factors in seasonal periodicityMarshall’S Physiology of reproduction. ed. A S Parkes (London: Longmans Green) Vol. I 707–800

    Google Scholar 

  • Brown L N 1971 Breeding biology of the pocket gopher (Geomys pinetis) in southern Florida;Am. Midland Natur. 85 45–53

    Article  Google Scholar 

  • Chandrahas R K and Krishnaswami A K 1974 Ecology of the soft-furred field rat,Rattus meltada meltada (Gray) in Kolar, Karnataka state;J. Bombay Nat. Hist. Soc. 70 447–457

    Google Scholar 

  • Clarke J R and Kennedy J P 1967 Effect of light and temperature upon gonadal activity in the vole (Microtus agrestis);Gen. Comp. Endocrinol. 8 474–488

    Article  CAS  PubMed  Google Scholar 

  • Delany M J 1971 The biology of small rodents in Mayanja forest, Uganda;J. Zool. (London) 165 85–129

    Article  Google Scholar 

  • Fawcett D W, Neaves W B and Flores M N 1973 Comparative observations on intertubular lymphatics and the organisation of the interstitial tissue of the mammalian testes;Biol. Reprod. 9 500–532

    CAS  PubMed  Google Scholar 

  • Grocock C A and Clarke J R 1975 Spermatogenesis in mature and regressed testes of vole (Microtus agrestis);J. Reprod. Fert. 43 461–470

    Article  CAS  Google Scholar 

  • Guraya S S and Kaur R 1977 Epididymal resorption of spermatozoa in the field rat (Millardia meltada); Andrologia 265–269

  • Jewell P A 1966 Breeding season and recruitment in some British mammals confined on small islands.Comparative biology of reproduction in mammals. ed. I W Rowlands (London: Academic Press) 89–116

    Google Scholar 

  • Mann G S and Bindra O S 1977 Reproductivity ofMus spp. in corp fields at Ludhiana;J. Bombay Nat. Hist. Soc. 74 162–167

    Google Scholar 

  • McKeever S 1966 Reproduction inCitellus beldingi andCitellus lateralis in Northeastern California;Comparative biology of reproduction in mammals ed. I W Rowlands (London: Academic press) 365–385

    Google Scholar 

  • Mock E J and Frankel A I 1978 A seasonal influence on testes weight and serum gonadotropin levels of the mature male laboratory rat;Biol. Reprod. 18 772–778

    Article  CAS  PubMed  Google Scholar 

  • Okia N O 1976 The biology of the bush-rat,Aethomys hindei Thomas in Southern UgandaJ. Zool. (London) 180 41–56

    Article  Google Scholar 

  • Samuel K M (ed.) 1977 Semen examination.Clinical lab techniques. (Madras: M K Gopalan) Chapter 4 pp 70–72

    Google Scholar 

  • Taylor J M and Horner B E 1970 Observations on reproduction inLaggadina (Rodentia: Muridae);J. Mammal. 51 10–17

    Article  CAS  PubMed  Google Scholar 

  • Thrope D H 1967 Basic parameters in the reaction of ferret to light.Effect of external stimuli on reproduction eds. G E W Wolstenholm and M O Connon (Boston: Little Brown and Co.) pp 53–70

    Google Scholar 

  • Van de Graaf K M and Balda R B 1973 Importance of green vegetation for reproduction in Kangroo rat,Dipodomys merriami;J. Mammal. 54 509–512

    Article  PubMed  Google Scholar 

  • Venge O 1968 Cyclical changes in testis and influence of additional light exposure on fertility in mink;Proc. 6th Intern. Congr. Anim. Reprod. Artif. Insem. Paris 1 341

    Google Scholar 

  • Walker E P 1968Mammals of the world II ed. (Baltimore: The Hopkin press)2 897

    Google Scholar 

  • Weir B J 1974 Reproductive characteristics of hystricomorph rodents;Symp. Zool. Soc. (London) 34 265–301

    Google Scholar 

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Dechamma, P.A., Gopal Dutt, N.H. The testicular and epididymal changes in the soft-furred field rat,Millardia meltada (Gray) in relation to some environmental factors. Proc. Indian Acad. Sci. (Anim. Sci.) 89, 303–310 (1980). https://doi.org/10.1007/BF03179173

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  • DOI: https://doi.org/10.1007/BF03179173

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