Flavor ingredients in the rodenticide formulation to improve consumption rate and mortality of house rat (Rattus tanezumi L.)

Abstract

House rat (Rattus tanezumi L.) is an urban pest that are disturbing in the settlements habitat. It can cause destruction and as a reservoir of pathogen to human. Control efforts have been conducted, both non-chemical and chemical. A flavoring ingredient in the formulation of rodenticide is required for chemical control. The objective of this study was to investigate the preference of house rat to flavor ingredients i.e. egg, sugar, monosodium glutamate, cooking oil, and soy sauce. The benefit of this research is to provide information and knowledge on the preference of house rat to the flavor type combined with rodenticide. These ingredients could be attractive enough to combine with acute rodenticide (zinc phosphide) and chronic rodenticide (coumatetralyl) for application in the field. Research conducted at Vertebrate Pest Laboratory, Dept. of Plant Protection, IPB Univ. for 6 month. Preliminary trial conducted to test the different concentration of several flavoring ingredients. Then, it mixed with 2 rodenticides, acute and chronic. The preliminary trial indicated that 10% of egg was the most preferable bait. The daily consumption on acute rodenticide (1.29 g) was significantly different to positive control (0.24 g). On the other hand, the consumption on chronic rodenticide was very high (3.34 g) and significantly different to negative control (2.18 g) and positive control (0.21 g). Mortality rate of test animal on acute and chronic rodenticide was 80% and 90%, respectively.

Infection with Clonorchis sinensis (Cobbold, 1875) Metacercariae in Fish from the East Lake of Wuhan: Freshwater Fish in Urban Lakes May Act as Infection Sources of Liver Fluke

“…The Asian house rat (Rattus tanezumi) is widely distributed in China and it can be found along river banks [30]. It is omnivorous, with meat and fish also included in its diet [31]. We frequently observed the feces of rats along the banks of East Lake.…”

Field Efficacy of Anticoagulant Rodenticides Against Rat Infestation in Oil Palm Plantation

“…The repercussion of poor bait formulation would also be a misunderstanding that the treatment might experience resistance issues, as stated by Quy et al (1992) regarding the resistance of brodifacoum in an earlier report by Greaves et al (1982) in Hamsphire, United Kingdom area was premature due to the possibility of poor bait consumption. Naturally, rats prefer high-quality foods and do not favour less attractive food items (Syahputri and Priyambodo, 2020;Whisson, 1996). The result of the poor formulation of bait will lead to poor acceptance by rats in the field.…”

Study on the feeding behaviour of house shrew (Suncus murinus L.) in Bogor to feed and rodenticide

“…Mixture of cricket feed with coumatetralyl was consumed more than zinc phosphide. This happens because chronic rodenticides do not cause a pungent odor or aroma in the bait provided so that the shrews are not suspicious (Syahputri & Priyambodo, 2020). Meanwhile, zinc phosphide has a pungent garlic-like aroma (Buckle 2012).…”

“…Based on the mode of action, the active ingredients of rodenticides consist of acute and chronic (anticoagulant) poisons. Acute poisons work quickly, which can cause death within 1-2 days, while death from chronic toxins occurs within 5 days (Syahputri & Priyambodo, 2020). The way acute poison works is to damage the nervous system by causing seizures and paralysis.…”