The functional demography of adrenal glands inRattus meltada pallidior in Indian desert
- 15 Downloads
In this paper, the seasonal fluctuations in adrenal glands and its relationship with their body weights, reproduction activity and population density of soft-furred field rat,Rattus meltada pallidior in the Indian desert has been discussed. Results of the present study revealed that the left adrenal gland in both the sexes of rodents was found to be significantly heavier (P<0·01) than the right one. The paired adrenal of female rats was significantly heavier (F<0·001) than those of males. The seasonal variations in adrenal weights of pregnant females were found to be significantly heavier (P<0·01) than those of nonparous females. The adrenal weights of male, pregnant and non-pregnant female rats were found to be significantly correlated with their body weights. Results of this study further revealed that changes in adrenal weights inRattus m. pallidior are functions of body weights which are regulated by the availability of food and its nutritional level.
KeywordsRattus meltada pallidior adrenal glands body weight pregnant females reproduction activity population density
Unable to display preview. Download preview PDF.
- Christian J J and Davis D E 1955 The reproduction of adrenal weight in rodents by reducing population size;Trans. 20th North Am. Wildlife Conf. pp. 177–184Google Scholar
- Herrick E H 1965 The black-tailed Jack rabbit Kansas N. Endocrine Studies;Kansas Univ. Sci. Bull. 140 73–75Google Scholar
- Jain A P 1971 Adrenal weight in the Indian gerbii,Tatera i. indica Hardwicke, as related to body weight and reproduction activity;4 279–288Google Scholar
- Prakash Ishwar, Dass B and Taneja G C 1969 Adrenal weight in relation to body weight and reproduction activity in the Indian desert hare,Lepus nigricollis dayanus;J. Anat. Soc. India 2 42–47Google Scholar
- Rana B D 1981 Variations in the weight of the adrenal glands ofSuncus murinus sindensis;Annals Zool. 18 115–124Google Scholar
- Rana B D and Prakash Ishwar 1981 Reproduction biology of the soft-furred field rat,Rattus meltada pallidior (Ryley 1914) in the Rajasthan desert;J. Bombay nat-Hist. Soc. (In press).Google Scholar
- Seiye H 1936 Thymus and adrenals in response of the organism to injuries and intoxications;Br. J. Expt. Pathol 17 234–248Google Scholar
- Southwick C H 1958 Population characteristics of house mice living in English corn ricks: density relationships;Proc. Zool. Soc. London 131 163–175Google Scholar
- Southwick C H 1963 Adrenal weights and eosinophil levels ofPeromyscus leucopus in relation to social climate;BulL EcoL Soc. Am. 44 130 (Abstr.)Google Scholar