scholarly journals Eye-lens weight curve for estimation of age in rats, Rattus rattus brunneus and Bandicota bengalensis in Nepal.

Mammal Study ◽  
2002 ◽  
Vol 27 (1) ◽  
pp. 87-89
Author(s):  
Poorna D. D. Shrestha ◽  
Tatsuo Yabe ◽  
Tyuzi Kusano
Keyword(s):  
Rattus Rattus ◽  
Eye Lens ◽  
Weight Curve ◽  
Bandicota Bengalensis

scholarly journals Efficacy of Germinated Cereals as Bait Carrier for Zinc Phosphide and Bromadiolone against Field and Commensal Rodent Pests: A Laboratory Evaluation

2014 ◽  
Vol 2014 ◽  
pp. 1-9
Author(s):  
P. Sakthivel ◽  
P. Neelanarayanan
Keyword(s):  
Pearl Millet ◽  
Finger Millet ◽  
Rattus Rattus ◽  
Zinc Phosphide ◽  
Field Conditions ◽  
Laboratory Evaluation ◽  
Toxicity Tests ◽  
Mus Booduga ◽  
Bandicota Bengalensis ◽  
Choice Tests

Both sexes of rodent pests such as Bandicota bengalensis, Millardia meltada, Mus booduga, and Rattus rattus were subjected to toxicity tests (acute rodenticide: 1.5% and 2% zinc phosphide and chronic rodenticide: bromadiolone (0.005%), under no-choice and choice tests) by using their preferred germinated cereals, namely, paddy, pearl millet, and finger millet, as bait base, individually. The results indicated that the poison baits in the germinated cereals induced all the chosen four species of rodent pests to consume greater quantities of bait perhaps due to the bait carrier’s palatability and texture. Besides these, the chosen three germinated cereals proved themselves that they are also capable of acting as suitable bait base for both selected rodenticides in bringing maximum mortality among the tested rodent pests under both no-choice and choice tests. Therefore, these germinated cereals may be recommended as a bait carrier for both zinc phosphide (2%) and bromadiolone (0.005%) poisons for the control of all these four species of rodent pests under field conditions. However, this requires field based trials with rodenticides for making a final recommendation.

scholarly journals The susceptibility of Rattus rattus and Bandicota bengalensis to a new anticoagulant rodenticide, flocoumafen

1986 ◽  
Vol 96 (3) ◽  
pp. 475-478 ◽  
Author(s):  
V. R. Parshad ◽  
G. Chopra
Keyword(s):  
Rattus Rattus ◽  
Confidence Limits ◽  
Anticoagulant Rodenticide ◽  
Bandicota Bengalensis ◽  
Pretreatment Period ◽  
Choice Tests ◽  
Median Period ◽  
Dose Levels

SUMMARYThe anticoagulant rodenticide flocoumafen was evaluated against Rattus rattus and Bandicota bengalensis, In no-choice 24 h feeding tests 100% mortality occurred at 0·00125% concentration of the poison in the bait in the case of B. bengalensis and at 0·00375% in R. rattus. Feeding of 0·0025% poison bait in 1-day, no-choice and 2-day choice tests resulted in 60% and 75% mortality of R. rattus, respectively, and 100% of B. bengalensis. The differences between the consumption of plain food in the pretreatment period and of poison bait in no-choice tests were non-significant, except in one case. The rodents consumed significantly more (P < 0·01) poison bait than the plain alternative in the choice trials. Median period of survival and its 95% confidence limits of R. rattus and B. bengalensis, at the 100% mortality dose levels of the poison, were 6·3 (5·04–7·88) and 6·2 (4·92–7·81) days respectively.

scholarly journals Late Quaternary Environmental and Human Impacts on the Mitochondrial DNA Diversity of Four Commensal Rodents in Myanmar

2020 ◽  
Author(s):  
San Maung Maung Theint ◽  
Thidalay Thwe ◽  
Khin Myat Myat Zaw ◽  
Tomofumi Shimada ◽  
Saw Bawm ◽  
...  
Keyword(s):  
Human Impacts ◽  
Late Quaternary ◽  
Rattus Rattus ◽  
Rapid Expansion ◽  
Rodent Species ◽  
Bandicota Bengalensis ◽  
Nearby Region ◽  
The Pacific ◽  
Sequence Variations ◽  
Commensal Rodents

Abstract We addressed the spatiotemporal characteristics of four commensal rodent species occurring in Myanmar in comparison with other areas of the Indo-Malayan region. We examined sequence variations of the mitochondrial cytochrome b gene (Cytb) in the Pacific rat (Rattus exulans), roof rat (Rattus rattus complex, RrC), lesser bandicoot rat (Bandicota bengalensis), and house mouse (Mus musculus) using the recently developed time-dependent evolutionary rates of mtDNA. The Cytb sequences of RrC from Myanmar were shown to belong to RrC Lineage II, and their level of genetic diversity was relatively high compared to those of the other three species. RrC was found to have experienced bottleneck and rapid expansion events at least twice in the late Pleistocene period in Myanmar and a nearby region. Accordingly, paleoclimatic environmental fluctuations were shown to be an important factor affecting rodents in the subtropics of the Indo-Malayan region. Our results show that human activities during the last 10,000 years of the Holocene period affected the population dynamics of the rodent species examined, including introducing them to Myanmar from neighboring countries. Further study of these four commensal rodents in other geographic areas of the Indo-Malayan region would allow us to better understand the factors that drove their evolution and their ecological trends.

scholarly journals Evaluation of coumatetralyl against two predominant murid species

1985 ◽  
Vol 94 (3) ◽  
pp. 327-330 ◽  
Author(s):  
Girish Chopra ◽  
V. R. Parshad
Keyword(s):  
Rattus Rattus ◽  
Confidence Limits ◽  
Feeding Period ◽  
Bandicota Bengalensis ◽  
Median Period

SUMMARYCoumatetralyl was evaluated in the laboratory against Bandicota bengalensis and Rattus rattus. Feeding tests with 0·0375 % coumatetralyl baits produced 100 % mortality after a single day feeding period in B. bengalensis and after a 10–day period in R. rattus. The anticoagulant bait is less palatable in comparison to plain bait. In the case of R. rattus, LFP50 and LFP98 and their 95 % confidence limits were 3·89 (2·62–5·77) days and 11·22 (6·1–20·65) days respectively. Median period of survival and its 95% confidence limits of B. bengalensis and R. rattus were 4·7 (3·85–5·7) days and 11·2 (9·33–13·44) days respectively.

scholarly journals The susceptibility of Tatera indica, Nesokia indica and Bandicota bengalensis to three anticoagulant rodenticides

1977 ◽  
Vol 78 (1) ◽  
pp. 75-84 ◽  
Author(s):  
J. H. Greaves ◽  
A. B. Rehman
Keyword(s):  
Wheat Flour ◽  
South Asian ◽  
Rattus Rattus ◽  
Pest Species ◽  
Anticoagulant Rodenticides ◽  
Tatera Indica ◽  
Bandicota Bengalensis

SUMMARYThree South-Asian rodent pest species were tested for susceptibility to anticoagulant rodenticides. Wheat flour containing 0·025% warfarin, 0·0375% coumatetralyl or 0·005% difenacoum was fed to 260 Tatera indica, 140 Nesokia indica and 81 Bandicota bengalensis for 1–56 days. Tatera was about as susceptible to anticoagulants as Rattus rattus has been reported to be. Nesokia and Bandicota were extremely variable: though the majority were highly susceptible, the slopes of the dose-mortality curves were close to zero. The difenacoum diet appeared to be more toxic than the warfarin diet to all three species, but less toxic than the coumatetralyl diet to Tatera and Nesokia. All of the anticoagulants were eventually lethal to all of the animals tested.

An Eye-Lens Weight Curve for Determining Age in Microtus pennsylvanicus

1980 ◽  
Vol 61 (3) ◽  
pp. 561-563 ◽  
Author(s):  
R. E. Thomas ◽  
E. D. Bellis
Keyword(s):  
Microtus Pennsylvanicus ◽  
Eye Lens ◽  
Weight Curve

Prevalence of Angiostrongylus cantonensis infection in commensal rats in Bombay

1982 ◽  
Vol 56 (4) ◽  
pp. 345-349 ◽  
Author(s):  
D. M. Renapurkar ◽  
M. K. Bhopale ◽  
Lalita S. Limaye ◽  
K. D. Sharma
Keyword(s):  
Rattus Rattus ◽  
Common Species ◽  
Angiostrongylus Cantonensis ◽  
Bandicota Bengalensis ◽  
Third Stage

ABSTRACTThe prevalence Angiostrongylus cantonensis, a metastrongylid lungworm of rats, was investigated in three common species of rodents in the Greater Bombay area, namely, Rattus rattus, R. norvegicus and Bandicota bengalensis. In all, 737 R. norvegicus, 100 R. rattus and 100 B. bengalensis were examined and the presence of A. cantonensis infection was noticed in R. norvegicus (1·62%). About 800 slugs (Laevicaulis alte) were examined and were found to harbour third-stage larvae of Angiostrongylus.

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