期刊名称：Research Journal of Animal, Veterinary and Fishery Sciences
电子版ISSN：2320-6535
出版年度：2014
卷号：2
期号：1
页码：1-5
语种：English
出版社：International Science Community Association
摘要：Mammals release different variety of molecules into the environment, either as specific chemosignals or metabolic byproducts through vaginal fluid, urine, faeces, saliva, milk, sweat and specialized scent glands. The bovine olfactory system has the ability to recognize and discriminate among thousands of structurally diverse odorants, which have access to the behavioural and physiological outputs. This chemical cues are used to pass the signals between individuals conveying information including sex, reproductive status, individual identity, ownership, competitive ability and health status. The complex mixtures of molecules sensed by bovine chemosensory systems and have important influences of behaviours such as mother-young interaction, mate choice and territorial marking. In the present study, it is planned to identify and estimate the biochemicals and fatty acids present in the faecal samples of Umblachery breed cow (Bos indicus) during different phases of estrous cycle. The biochemical estimation showed that protein, carbohydrate and lipid were higher in oestrus phase when compared to all other phases. Further, GC analysis of the faecal samples showed that 20 different fatty acids are identified in all the phases of estrous cycle. The fatty acids like valeric, caproic, myristic, gadoleic and pelargonic acids are found only in estrus not in other phases. Based on the above information, the present study suggests that the qualitative and quantitative presence of certain biochemicals and fatty acids would be reliable indicators of oestrus in bovine. The role of biochemical and fatty acids in animal behaviour must be confirmed by field study. The presence of biochemicals and specific fatty acids in estrus faeces makes the possibility to develop a biomarker for the detection of estrus in Umblachery cattle very accurately.
