Chemical Signals in the Tiger
Like many other mammals, tigers disseminate chemical signals through urine and specialized glandular secretions. The behavior of the tiger, the hunters’ prime trophy, was hardly amenable to the rigors of scientific observation and Schaller (1967) first drew attention to a special mode of squirting a milky, lipid-rich fluid upwards and backwards by both sexes of tigers. This has been repeatly referred to as anal gland secretion, and the consequent confusion in the literature has been described (Brahmachary and Dutta, 1987). This fluid, referred to as Marking Fluid (MF) by this group of authors (Brahmachary and Dutta, 1981, 1987), is ejected through the urirary channel which is apparently unconnected to the anal sac (Hashimoto et al., 1963). Furthermore, Smith et al. (1989), who used the term scent marking (to imply the depositon of MF), have now clearly distinguished MF from anal gland secretion which, on drying, becomes a blackish mass. Numerous observations from very close quarters on a pet tigress has revealed the great innate urge of squirting MF (Choudhury, unpublished; Brahmachary, unpublished).
KeywordsOctanoic Acid Rice Aroma Fragrant Rice Bose Institute Eleven Free Fatty Acid
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