Browsing by Author "Sreekumar, Chirukandoth"
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ArticleItem Open Access Control of brown dog tick, Rhipicephalus sanguineus using assembly pheromone encapsulated in natural polymer, chitosan(2014) Dhivya, B.; Latha, Bhaskaran Ravi; Raja, Modhugoor Devendiran; Sreekumar, Chirukandoth; Leela, V.; TANUVASIn the current study, an attempt was made to encapsulate assembly pheromone using natural polymer, chitosan. Chitosan beads were prepared by incorporating assembly pheromone in conjunctionwith an acaricide, namely, deltamethrin. In the in vitro bioassay, the test beads attracted and killed 79 %of unfed larvae, 88 %of unfed nymphs and 61 %of unfed adults of the brown dog tick, Rhipicephalus sanguineus, in 24 h of exposure. Field trials were carried out to attract and kill the pre-parasitic environmental stages. The beads were dispersed onto specially designed devices and they were placed in infested kennels. The devices were observed after 10 daysArticleItem Open Access Effect of jaggery on the quality and intake levels of maize silage(2010) Venkataramanan, Ragothaman; Sreekumar, Chirukandoth; Anilkumar, Rishipal, et al.,; TANUVASSilage, which is anaerobically fermented green fodder, is valued throughout the world as a source of animal feed during lean months. Several farms in India use carbohydrate sources like jaggery or molasses at 2% for preparation of silage, and this increases cost of production. The present study was undertaken to assess the effect of jaggery on quality and intake of maize silage, with an objective to find out whether additional carbohydrate source is essential in preparation of silage using green maize. Three silage types, one without jaggery (A), the second with 1% jaggery (B), and the third with 2% jaggery (C) were prepared in cylindrical bins under similar conditions. They were compared for colour, pH, lactic acid bacteria count, lactic acid content, proximate composition and silage intake by sheep. Silage type C with 2% jaggery was significantly different from the other two types with values of 3.98 and 805.66 g for pH and mean silage intake, respectively. Even though the values of pH and dry matter intake for all three silage types were within normal levels, silage type C was significantly superior in terms of fermentation and palatability. The method of preparation followed could be ideal for small holder farmers requiring less quantity of silage.ArticleItem Open Access Effect of jaggery on the quality and intake levels of maize silage(2010) Venkataramanan, Ragothaman; Sreekumar, Chirukandoth; Anilkumar, Rishipal; Selvaraj, P, et al.,; TANUVASSilage, which is anaerobically fermented green fodder, is valued throughout the world as a source of animal feed during lean months. Several farms in India use carbohydrate sources like jaggery or molasses at 2% for preparation of silage, and this increases cost of production. The present study was undertaken to assess the effect of jaggery on quality and intake of maize silage, with an objective to find out whether additional carbohydrate source is essential in preparation of silage using green maize. Three silage types, one without jaggery (A), the second with 1% jaggery (B), and the third with 2% jaggery (C) were prepared in cylindrical bins under similar conditions. They were compared for colour, pH, lactic acid bacteria count, lactic acid content, proximate composition and silage intake by sheep. Silage type C with 2% jaggery was significantly different from the other two types with values of 3.98 and 805.66 g for pH and mean silage intake, respectively. Even though the values of pH and dry matter intake for all three silage types were within normal levels, silage type C was significantly superior in terms of fermentation and palatability. The method of preparation followed could be ideal for small holder farmers requiring less quantity of silage.ArticleItem Open Access Response of unfed stages of Rhipicephalus sanguineus to subtle variations in the composition of assembly pheromone(Journal Impact Factor, 2016-10) Bhoopathy, Dhivya; Latha, Bhaskaran Ravi; Sreekumar, Chirukandoth; Leela, V.; TANUVASTwo combinations of assembly pheromone (AP), with and without hematin were utilized as a lure for the unfed larvae, nymph and adults of Rhipicephalus sanguineus ticks. In-vitro trials were carried out with the AP encapsulated in calcium alginate beads and the response of different stages of ticks were recorded. Analysis of results revealed that rapid attraction was evident in unfed larvae exposed to beads containing AP without hematin. In case of unfed nymphal and adult stages, the presence or absence of hematin did not have any impact on arrestment.